id int64 5 1.93M | title stringlengths 0 128 | description stringlengths 0 25.5k | collection_id int64 0 28.1k | published_timestamp timestamp[s] | canonical_url stringlengths 14 581 | tag_list stringlengths 0 120 | body_markdown stringlengths 0 716k | user_username stringlengths 2 30 |
|---|---|---|---|---|---|---|---|---|
1,925,494 | Implementing Multilingual Solutions in Core Banking Systems - LinguaSol | Imagine using a banking platform that seamlessly operates in your preferred language or interacting... | 0 | 2024-07-16T13:11:04 | https://dev.to/olivia_davis09/implementing-multilingual-solutions-in-core-banking-systems-linguasol-133o | multilingualbanking, multilingualsolutions, multilingualcorebanking, corebanking |
Imagine using a banking platform that seamlessly operates in your preferred language or interacting with a multilingual AI chatbot that gives precise, personalized responses. This is now possible thanks to advanced multilingual core [banking solutions](https://linguasol.net/banking-localization-services/) using state-of-the-art language technology.
**Here are 7 ways these solutions improve the banking experience:**
**1. Enhanced Customer Experience:** Modern banking goes beyond transactions to include personalized service, relationship management, and customer loyalty. Multilingual solutions enable effective communication in customers' languages, enhancing satisfaction and trust.
**2. Improved Communication:** Language barriers can cause misunderstandings and errors. Multilingual platforms ensure clear interactions, helping customers understand banking products and services better.
**3. Simplified International Transactions:** Multilingual support makes cross-border transactions easier for global businesses and travelers, streamlining processes and aiding decision-making.
**4. Easy Migrant Remittances:** Multilingual interfaces allow expatriates to manage remittances independently across languages, promoting efficiency and self-service.
**5. Enhanced Alertness and Risk Awareness:** Multilingual alerts keep all customers informed about important updates and financial risks, regardless of language skills.
**6. Access to Personalized Financial Education:** Multilingual resources promote financial literacy, empowering individuals to use banking services effectively and participate fully in the economy.
**7. Customized Interactions:** Tailored communication in customers' languages strengthens local market presence and enhances engagement. Multilingual AI chatbots provide quick, responsive service, improving the overall banking experience.
[Linguify](https://linguasol.net/linguify-multilingual-solution/) is a carefully crafted multilingual solution designed to provide outstanding banking experiences! It offers advanced features that ensure fast, accurate, and thorough translations, enabling banks to redefine personalized service.
For banking organizations aiming to expand their customer base and enhance their banking services, [LinguaSol](https://linguasol.net/)’s Linguify is the perfect choice. It supports over 100 languages, including Indian and foreign languages, with precise translations and additional features like change management and regular updates. Linguify empowers banks to deliver excellent multilingual financial services. | olivia_davis09 |
1,925,495 | Laravel vs Spring boot: Which is the right framework for you? | What is Laravel? Laravel is a web application framework developed by Taylor Otwell in... | 0 | 2024-07-16T13:12:03 | https://www.lucentinnovation.com/blogs/technology-posts/laravel-vs-spring-boot | springboot, laravel | ## What is Laravel?
Laravel is a web application framework developed by Taylor Otwell in 2011. Like all modern frameworks, Laravel follows the Model-View-Controller (MVC) architectural pattern. Laravel emphasizes elegance, simplicity, and readability. Regarding building applications with PHP frameworks, Laravel is second to none.
Since Laravel is open source, you can find the source code in its GitHub repository here. You can also find the framework's documentation here.
## Usage Statistics in Laravel Framework:
- Laravel has a 0.16% market share among web frameworks, which indicates its growing popularity in the industry.
- More than 685,868 live websites are currently built using Laravel, with a remarkable concentration of 1.94% (one million) in the USA region.
- With 73k GitHub stars, 22.5k forks, and 608 dedicated contributors, Laravel enjoys a strong community and active development support.
## Laravel Framework use cases
- Laravel is widely used for developing SaaS-based web applications that allow companies to offer software solutions to their customers over the Internet.
- It finds applications in on-demand streaming web apps, allowing users to access and stream content on platforms such as video-on-demand services or live streaming platforms.
- Laravel is used to create e-learning web applications that provide a platform for online education and training courses.
- Laravel is used in stock trading web management systems that facilitate managing and tracking stocks, exchange rates, trading quotes, and other financial data.
- Laravel is suitable for developing web apps with reward and recognition features that allow companies to introduce gamification elements and loyalty programs for their users.
- It is a foundation for developing multilingual CMS systems and enables content creation and management in multiple languages.
- Laravel can be used to develop self-hosted website performance monitoring apps that help companies track and optimize the performance of their websites.
## Popular apps that use Laravel as a back-end technology include:
Laracasts: an e-learning website that offers various courses and expert-led technical support.
Barchart: a financial portal with real-time global market data, including stock prices, exchange rates, and more.
Asgard CMS: A modular, multilingual CMS that offers ready-to-use modules for content management and back-end support.
World Walking: A healthcare platform encouraging people to walk through reward and recognition programs.
Neighborhood Lender: A mortgage calculator and finance platform that simplifies complex mortgage processes using Laravel back-end support.
## Why is Laravel one of the most popular frameworks in 2023?
The popularity of Laravel as a PHP framework is due to several key factors:
- Eloquent ORM: Laravel's Eloquent ORM simplifies database interaction with an intuitive object-oriented syntax, promoting clean and maintainable code.
- Artisan CLI: The Artisan command line interface automates repetitive tasks, saving developers time and effort in database migrations and testing.
- Blade Templating Engine: Laravel's Blade templating engine provides a clean syntax for HTML generation that facilitates reusable layouts and components and improves code organization.
- Built-in security features: Laravel emphasizes security and protects against common threats such as CSRF, SQL injection, and XSS attacks.
- Dependency Injection and Inversion of Control: Laravel's support for Dependency Injection and Inversion of Control promotes a modular architecture and separation of concerns, resulting in cleaner and more testable code.
- MVC Architecture: Laravel's adherence to MVC architecture improves code organization, simplifies development, and simplifies debugging and testing.
- Vibrant ecosystem and community: Laravel benefit from a thriving ecosystem with a wide range of packages and resources, supported by an active community that provides updates, bug fixes, and new features.
- Laravel Forge and Envoyer: Laravel Forge automates server management, while Envoyer provides seamless zero-downtime deployments and integrates seamlessly with popular cloud platforms.
- Extensive documentation and learning resources: Laravel provides extensive documentation and learning resources such as Laracasts to help developers learn and keep up to date with the framework.
- Scalability and performance: Laravel includes caching, task scheduling, event broadcasting, and advanced queue management that enable developers to optimize applications for Scalability and high performance.
-Continuous innovation and improvement: Laravel's creator and development team constantly introduces new features and improvements, ensuring the framework remains cutting-edge.
These features help make Laravel popular with developers looking for a powerful, flexible, and efficient PHP framework.
## How to optimize Laravel?
Optimizing Laravel's performance is critical to the success of an application. Developers need to focus on optimizing the performance of Laravel applications to improve their efficiency and overall user experience. Laravel is a fast framework with numerous built-in features and functions that improve performance, such as Memcache, database support, and Redis. By implementing code tweaks and caching mechanisms, developers can significantly increase the performance of their Laravel applications. As Google Trends shows, it is important to note that Laravel is currently PHP's most popular back-end tool.
There are different methods to optimize Laravel Performance; some of them are:
-Route caching: Use the "PHP artisan route: cache" command to cache route data and improve page load speed.
-Optimize Composer: Use the "--no-dev" and "-o" parameters when installing Composer packages to remove unnecessary dev dependencies and improve performance.
-Reduce auto-loaded services: Disable unnecessary service providers in the config/app.php file to improve Laravel speed.
-Use artisan commands and cache effectively: Use commands like "php artisan config: cache" and "php artisan view: cache" to cache configuration and display files for faster loading.
-Reduce the use of packages: Pay attention to the dependencies and size of the packages you include in your Laravel application to avoid performance degradation.
-Upgrade to the latest version of PHP: Keep your PHP version up to date to improve performance and security.
-Use queues: Move time-consuming tasks to a queue to improve online request performance.
-Use deployment tool: Use deployment tools like Deployer to automate deployment operations and save time.
-Use Lumen for small projects: Consider using the lightweight micro-framework Lumen for small applications that do not require the full feature set of Laravel.
-Use JIT compilers: Use a just-in-time (JIT) compiler such as HHVM to optimize PHP code execution and improve performance.
-Use Eager Loading: Use Eager Loading in Laravel's Eloquent ORM to reduce the number of database queries and improve performance.
-Compress images: Optimize image loading speed by compressing images with tools like TinyPNG or ImageMin.
-Use a CDN: Deliver static content through a content delivery network (CDN) to improve global accessibility and speed up page loading.
-Minimize JS and CSS code: Shrink JavaScript and CSS files to reduce their size and speed up page loading.
-Use asset bundling: Use tools like Laravel Mix or Laravel Packer to bundle and compress JavaScript and CSS files for optimized performance.
-Limit included libraries: Remove unnecessary libraries from your Laravel application to reduce overhead and improve performance.
-Consider using New Relic: Use Application Performance Management (APM) tools such as the New Relic APM tool to monitor and optimize Laravel application performance.
## What is a Spring Boot Framework?
Spring Boot is a popular open-source micro-framework actively supported by Pivotal that provides Java developers with a practical platform for building production-ready Spring applications. It simplifies the development process through automatic configuration and saves developers time that would otherwise be spent setting up and configuring their Spring applications. With Spring Boot, developers can quickly build robust Java applications without worrying about manual configuration. Watch out for our blog on Spring vs Spring Boot to get more ideas about Spring Boot Framework.
## Use cases of Spring Boot
-Microservices: Simplifies microservices' development, deployment, and scaling in distributed systems.
-Web Development: Convenient for building robust and scalable web applications.
-RESTful APIs: Excellent support for building REST endpoints and dealing with web services.
-Batch processing: Efficient execution of batch jobs for data synchronization and reporting tasks.
-Integration: Enables seamless integration between systems and services through frameworks such as Spring Integration and Spring Cloud Stream.
## Why choose Spring Boot?
-Flexible configuration: Spring Boot allows you to flexibly configure Java beans, XML configurations, and database transactions.
-Powerful batch processing: It provides robust support for batch processing and efficiently manages REST endpoints.
-Automatic configuration: With Spring Boot, you no longer need to perform manual configurations. It provides automatic configuration that saves you time and effort.
-Annotation-based development: Spring Boot promotes annotation-based development that simplifies the development process and makes it easier to understand and manage the application.
-Simplified dependency management: Spring Boot simplifies dependency management by handling them automatically, reducing the complexity of dependency management.
-Embedded servlet container: It includes an embedded servlet container that eliminates the need for external deployment containers and simplifies application execution and deployment.
## Conclusion
When it comes to choosing between Laravel and Spring Boot, it ultimately comes down to usability and the needs of your project. Spring Boot is a recommended choice for complex projects that require careful attention. On the other hand, Laravel is not far behind, offering a seamless user experience with its integrated Laravel eCommerce system with a user-friendly UI and shopping cart functionality. Moreover, Laravel can offer a good return on investment if optimized properly.
You can hire [**Laravel developers**](https://www.lucentinnovation.com/pages/hire-laravel-developers) or [**hire a Spring Boot developer** ](https://www.lucentinnovation.com/pages/hire-spring-boot-developers)depending on your specific project requirements. Lucent Innovation is here for you if you are looking for a custom web development solution. We have an experienced team of Laravel and Spring Boot developers with years of experience. Our developers can help you meet your project requirements and help you stay ahead of your competition. Reach out to us today to discuss your web development needs. | vaishali2 |
1,925,496 | Detailed Explanation of the Rust Programming Language | 1. Introduction Rust is a systems programming language designed to provide a safe,... | 0 | 2024-07-16T13:13:14 | https://dev.to/happyer/detailed-explanation-of-the-rust-programming-language-231i | rust, development, developer, ai | ## 1. Introduction
Rust is a systems programming language designed to provide a safe, concurrent, and high-performance programming experience. This article will introduce the main features of Rust, including safety, a powerful type system, superior performance, and concurrency. We will also explore Rust's advantages in various application domains such as systems programming, web development, embedded systems, and network programming. Finally, we will briefly introduce Rust's basic concepts, including variables, data types, control structures, and functions.
## 2. Features
### 2.1. Safety
In Rust, ensuring the safety of concurrent programming primarily relies on several key features: ownership, borrowing, and lifetimes.
#### 2.1.1. Ownership
Rust's ownership system stipulates that each value has a unique owner, and when the owner goes out of scope, the value is automatically reclaimed. This mechanism can prevent data races and double-free errors.
```rust
fn main() {
let mut data = vec![1, 2, 3];
let handle = std::thread::spawn(move || {
data.push(4);
});
// The main thread cannot access data because ownership has been transferred to the child thread
handle.join().unwrap();
}
```
#### 2.1.2. Borrowing
Borrowing is a way to access values in Rust, divided into mutable borrowing and immutable borrowing. The Rust compiler ensures that at any time, there can be multiple immutable borrows or one mutable borrow, but not both simultaneously. This helps prevent data races and other potential memory safety issues.
```rust
fn main() {
let mut data = vec![1, 2, 3];
let (mut read_data, write_data) = mpsc::channel();
let _read_handle = std::thread::spawn(move || {
read_data.send(data.clone()).unwrap();
});
// Cannot access data here because there is an immutable borrow
let mut_data = write_data.recv().unwrap();
mut_data.push(4);
}
```
#### 2.1.3. Lifetimes
Lifetimes are a concept used by the Rust compiler to track the validity of references in a program. By adding lifetime annotations to references, it ensures that references are valid when used. This helps prevent dangling pointers and other issues.
```rust
fn first_name(name: &str) -> &str { name }
fn main() {
let name = String::from("Alice");
let _first_name = first_name(&name);
// The following code will not compile because the compiler cannot guarantee that the name reference is still valid after the first_name function call
// let _last_name = last_name(&name);
}
```
#### 2.1.4. Atomic Operations and Locks
Although Rust's ownership system and borrowing rules can prevent many concurrency issues, synchronization primitives are still needed in some cases. Rust provides safe and easy-to-use atomic operations and locks, such as `Mutex`, `RwLock`, and `Atomic` types, to help programmers handle concurrent access.
```rust
use std::sync::{Arc, Mutex};
use std::thread;
fn main() {
let counter = Arc::new(Mutex::new(0));
let mut handlers = vec![];
for _ in 0..10 {
let counter = Arc::clone(&counter);
let handler = thread::spawn(move || {
let mut num = counter.lock().unwrap();
*num += 1;
});
handlers.push(handler);
}
for handler in handlers {
handler.join().unwrap();
}
println!("Result: {}", *counter.lock().unwrap());
}
```
By adhering to ownership rules, borrowing rules, and using appropriate synchronization primitives, Rust can catch many concurrency errors at compile time, greatly improving the safety of concurrent programming.
### 2.2. Powerful Type System
Rust's type system has the following features:
- **Strong Type Inference**: The Rust compiler can automatically infer the type of variables based on context, making code more concise.
- **Pattern Matching**: Rust provides pattern matching functionality, allowing programmers to handle various situations more concisely.
- **Enums**: Rust's enums can not only represent a fixed set of values but also carry additional data. This makes enums an ideal choice for representing complex logic and data structures.
### 2.3. Superior Performance
One of Rust's design goals is to provide high performance comparable to C and C++ while maintaining memory safety and concurrency safety. Rust's performance benefits from the following points:
#### 2.3.1. Compile-Time Optimization
The Rust compiler (`rustc`) uses LLVM as its backend, leveraging a series of compile-time optimization techniques provided by LLVM. These optimizations include inlining, dead code elimination, constant propagation, loop unrolling, and branch prediction. These optimizations help improve the execution efficiency of Rust programs.
#### 2.3.2. Ownership System and Borrowing Rules
Rust's ownership system provides a way to ensure memory safety at compile time. By restricting access to data, Rust can avoid issues like dangling pointers and double-free errors without sacrificing performance. Additionally, Rust's borrowing rules limit the number of simultaneous mutable and immutable references, preventing data races.
#### 2.3.3. Zero-Cost Abstractions
Rust allows programmers to use high-level abstractions (such as closures, generics, and pattern matching) without introducing additional runtime overhead. This is because Rust performs strict type checking and optimization at compile time to ensure that these abstractions do not affect program performance.
#### 2.3.4. Avoiding Garbage Collection
Rust does not have a garbage collector, meaning memory management is entirely controlled by the programmer. While this increases programming complexity, it also avoids the performance overhead and unpredictable behavior that garbage collection can cause.
#### 2.3.5. Concurrency Safety
Rust's concurrency safety features help write high-performance multithreaded programs. By providing thread-safe data structures (such as `std::sync` and `std::mpsc`) and compile-time borrowing rules, Rust can achieve thread safety without introducing locks or atomic operations.
#### 2.3.6. Explicit Error Handling
Rust uses the `Result` type to represent operations that may fail. This design encourages explicit error handling rather than relying on exception mechanisms. Exception handling can lead to performance overhead, while explicit error handling helps maintain high performance.
In summary, Rust's design principles and features enable it to achieve high performance while maintaining memory safety and concurrency safety. Through compile-time optimization, the ownership system, zero-cost abstractions, and other techniques, Rust can provide performance comparable to C and C++ without sacrificing safety.
### 2.4. Concurrency
Rust's asynchronous programming model is based on several key concepts:
- **Future**: Represents a computation that has not yet completed and may produce a result at some point in the future.
- **async/await**: The `async` keyword is used to declare asynchronous functions, and the `await` keyword is used to wait for a `Future` to complete. This makes writing asynchronous code concise and easy to understand.
- **Executor**: Responsible for scheduling and executing asynchronous tasks, mapping them to actual operating system threads.
## 3. Basic Concepts
### 3.1. Variables and Data Types
Variables in Rust are immutable by default, meaning once a variable's value is determined, it cannot be changed. To create a mutable variable, you need to add the `mut` keyword before the variable name.
```rust
let mut counter: i32 = 0;
counter = 1; // Mutable variables can be reassigned
```
Rust provides various basic data types, such as:
- Integers (`i8`, `i16`, `i32`, `i64`, `u8`, `u16`, `u32`, `u64`, etc.)
- Floating-point numbers (`f32`, `f64`)
- Characters (`char`)
- Booleans (`bool`)
- Strings (`String`)
### 3.3. Control Structures
Rust supports `if`, `else if`, and `else` statements, as well as the ternary operator (conditional expression).
```rust
let max = if a > b { a } else { b };
```
Rust's loop structures include `for` loops and `while` loops. `For` loops are typically used with range expressions to iterate over a range of values.
### 3.3. Functions and Methods
Functions and methods are basic building blocks in Rust. Functions are defined using the `fn` keyword and accept input parameters and return results. Methods are defined similarly to regular functions but must be bound to a type.
```rust
struct Point {
x: i32,
y: i32,
}
impl Point {
fn new(x: i32, y: i32) -> Self {
Point { x, y }
}
fn distance(&self, other: &Point) -> f64 {
((self.x - other.x).pow(2) + (self.y - other.y).pow(2)).sqrt()
}
}
```
## 4. Application Domains
### 4.1. Systems Programming
Rust is well-suited for writing system-level software, such as operating systems, game engines, and file systems. For example, [TockOS](https://www.tockos.org/) is an embedded operating system based on Rust that has been successfully applied to various microcontrollers.
### 4.2. Web Development
Although Rust's application in web development is relatively new, it has already shown great potential. By using libraries like [wasmi](https://github.com/paritytech/wasmi) and [tower](https://github.com/tower-rs/tower), developers can build high-performance WebAssembly applications.
### 4.3. Embedded Systems
Rust's safety and performance make it an ideal choice for embedded systems. By using libraries such as [rust-osdev](https://github.com/rust-osdev) and [stm32-rs](https://github.com/stm32-rs), developers can write high-performance and safe firmware for microcontrollers.
### 4.4. Network Programming
Rust's asynchronous programming model makes it simple to write highly concurrent network servers and proxies. Some popular network programming libraries, such as [tokio](https://tokio.rs/) and [hyper](https://github.com/hyperium/hyper), are built on Rust.
## 5. Codia AI's products
Codia AI has rich experience in multimodal, image processing, development, and AI.
1.[**Codia AI Figma to code:HTML, CSS, React, Vue, iOS, Android, Flutter, Tailwind, Web, Native,...**](https://codia.ai/s/YBF9)
2.[**Codia AI DesignGen: Prompt to UI for Website, Landing Page, Blog**](https://codia.ai/t/pNFx)
3.[**Codia AI Design: Screenshot to Editable Figma Design**](https://codia.ai/d/5ZFb)
4.[**Codia AI VectorMagic: Image to Full-Color Vector/PNG to SVG**](https://codia.ai/v/bqFJ)
## 6. Conclusion
As a systems programming language, Rust ensures memory safety and concurrency safety through its ownership system and borrowing rules. Additionally, Rust's type system and compile-time optimizations contribute to its high performance. The asynchronous programming model simplifies writing highly concurrent programs. Rust has broad application prospects in systems programming, web development, embedded systems, and network programming. | happyer |
1,925,497 | Navigating Your Local Ford Dealership Experience | When it's time to consider purchasing a vehicle, finding a reliable "Ford dealer near me" becomes a... | 0 | 2024-07-16T13:13:38 | https://dev.to/patcarr/navigating-your-local-ford-dealership-experience-4ed3 | When it's time to consider purchasing a vehicle, finding a reliable "[Ford dealer near me](https://www.google.com/maps?cid=8356311345469670163)" becomes a priority for many prospective car buyers. The process of buying a Ford branded car involves much more than just making a financial transaction; it's about finding the right place that understands your needs and preferences. In this article, we'll explore what you can expect when visiting your local Ford dealership and how they can assist in selecting the perfect Ford vehicle for you.
A Wide Range of Ford Models at Your Disposal
Upon entering your chosen Ford dealership, you'll be greeted with an array of options. From the latest models boasting cutting-edge technology to pre-owned vehicles that have been meticulously inspected for quality and performance, there is something for every type of driver. Whether you're looking for a robust Ford truck to handle challenging terrains or a sleek sedan for daily commutes, your local dealer has the inventory to match diverse lifestyles and budgets.
Personalized Service Tailored to Your Needs
Customer service is paramount at any reputable dealership, and your Ford dealer is no exception. Sales professionals are trained to listen carefully to your requirements and preferences, guiding you through the selection process with ease. They are equipped with extensive knowledge about each model's features and capabilities, ensuring that all your questions are answered comprehensively.
Financing Options Designed With You in Mind
Understanding financing can often be one of the most daunting aspects of purchasing a new car. Your "Ford dealer near me" simplifies this step by offering transparent financing solutions tailored to individual circumstances. Their finance experts work closely with customers to find suitable payment plans, helping them drive off the lot with peace of mind knowing they've secured a deal that aligns with their financial situation.
Continued Support After Your Purchase
The relationship between buyer and dealership does not end once the keys are handed over; it's just beginning. Post-purchase support is crucial in maintaining your vehicle's health and longevity. Many dealerships offer comprehensive maintenance services performed by certified technicians who specialize in Ford vehicles, ensuring that your car remains in optimal condition.
Community Involvement – More Than Just Selling Cars
A notable characteristic of a dedicated Ford dealership is its involvement in the community. Many dealers take pride in giving back through sponsorships, charitable events, and engagement in local activities. This sense of community creates an environment where customers feel valued not only as buyers but also as neighbors.
In conclusion, when searching for a "Ford function dealer near me," expect more than just cars lined up for sale. A reputable dealership offers an inclusive experience from exploring various models to after-sales care that makes owning a Ford vehicle rewarding. With personalized services tailored to meet customer needs, transparent financial guidance, ongoing maintenance support, and strong community ties, local dealerships strive to deliver satisfaction beyond expectations.
Remember that purchasing from an authorized dealer ensures access to genuine parts during services or repairs while building relationships based on trust within your local area—benefits worth considering when choosing where to buy your next Ford branded car.
[Evansville Ford](https://www.evansvillefordmotors.com/)
428 Union Street, Evansville, WI, 53536
608-882-4700
| patcarr | |
1,925,498 | Measuring ROI: The Impact of Custom Courseware on Training Effectiveness | Industries are constantly changing and so is the way they function. Today one of the most important... | 0 | 2024-07-16T13:14:44 | https://dev.to/jacquelinedavid/measuring-roi-the-impact-of-custom-courseware-on-training-effectiveness-1loc | Industries are constantly changing and so is the way they function. Today one of the most important things to enhance employee effectiveness is putting them under the right training.
There are professional courseware development services that are entrusted with the duty of building unique training programs. Without understanding the return on investment, it can be a challenging task to invest in [custom courseware development](https://www.acadecraft.com/learning-solutions/courseware-development-services/) on training.
## Simple Ways To Identify The Return On Investment For Custom Courseware
The term custom courseware refers to building a training program for employees that is effective across various workplaces. Before you invest in custom courseware development, some of the crucial factors that can help you identify the ROI are:
**1. Flexibility and Scalability**
The way every organization functions is extremely different. Consequently, the employee functioning for different departments is also unique. When investing in custom courseware investing in custom courseware development, it is crucial to make sure that you assess whether the course is flexible and scalable. The course should cater to various learning styles and preferences.
Try to ensure that there are uses for multimedia elements like interactive modules or even practical exercises. Using a multitude of different elements will keep the learners interested and enhance productivity. The flexibility, on the other hand, will ensure that one can use the training program as the organization grows.
**2. Assessing The Key Performance Indicator**
The corporate world usually works on quantifiable data. Health each and every individual will have their own key performance indicator, commonly known as KPI. To measure whether the custom courseware promises a sustainable return on investment, it is important to identify the KPI that aligns with the training objective.
Usually the KPI will include quantifiable metrics such as the employee performance, the productivity they provide, the customer satisfaction, sales figure (if any) and similar others. Based on the KPI you will be able to draw an inference about whether it has improved after the implementation of the courseware.
**3. Employee Feedback And Surveys**
One of the most relevant ways to measure the return on investment on a particular courseware is to ask those who are involved in the training directly. This means that you can gather feedback from the employees to understand whether it has proven to be effective for them. Usually, with the help of surveys and feedback forms, you will be able to gather both qualitative and quantitative data about the learner's experience.
You can analyze the levels of client satisfaction as well from the feedback. Collecting feedback and surveys from the learners is usually one of the most foolproof ways of calculating return on investment. You can also incorporate the mechanism of anonymous feedback and surveys to ensure that the employees give honest opinions.
**4. Cost Benefit Analysis**
When hiring courseware development services who work to build your course, it is important that you conduct a complete cost-benefit analysis. What does this mean? Usually, you will be required to compare the costs associated with the development and delivery of the courseware.
Cost-benefit analysis is a reliable method to analyze the exact financial data. You will need to then compare this against the financial benefits that you derive from the employee's performance and the business growth.
**5. Employee Assessment**
Another effective but time-consuming method for return on investment measurement for any courseware development is with the help of extensive employee assessment. You can conduct assessments before and after the training programs. This will give you a comparison of the knowledge of the employee before the training and after the training.
When you compare the assessments you will be able to get valuable insight into the impact of the training and whether the employees have benefited at all. The return on investment will be high if the comparison brings forward stark differences in pre and post-training assessment.
**Conclusion**
Custom courseware is an extremely powerful solution for various organizations if you can establish specific business goals. Choosing the right option for custom courseware development can completely change the outcome. If you want to measure the quantifiable return on investment then it is important to identify various indicators and then draw a cumulative inference. Implementation of the training program for at least a couple of rounds is important so that you can understand the efficacy.
**Key Takeaways:**
Industries are evolving, making employee training crucial for effectiveness.
Measuring the ROI of training programs is vital before investing in custom courseware.
Flexibility and scalability ensure courseware adapts to various learning styles and organizational growth.
Employee feedback and surveys provide qualitative and quantitative data on training effectiveness.
Conducting a cost-benefit analysis compares development costs with financial benefits from training.
Employee assessments before and after training offer insights into knowledge improvement and ROI.
Implementing the training program multiple times helps gauge its overall impact.
| jacquelinedavid | |
1,925,499 | Tente isso 3-2 : Melhore o sistema de ajuda Java | Essa versão adiciona a sintaxe dos laços for, while e do-while. Também verifica a seleção do usuário... | 0 | 2024-07-16T16:08:34 | https://dev.to/devsjavagirls/tente-isso-3-2-melhore-o-sistema-de-ajuda-java-3l04 | java | Essa versão adiciona a sintaxe dos laços for, while e do-while. Também verifica a seleção do usuário no menu, entrando em laço até uma resposta
válida ser inserida.
1. Copie Help.java em um novo arquivo chamado Help2.java
2. Altere a primeira parte de main( ) para que use um laço na exibição das opções.
Observe que um laço do-while aninhado é usado para descartar qualquer caractere indesejado remanescente no buffer de entrada. Após essa alteração, o programa entrará em laço, exibindo o menu até o usuário inserir uma resposta entre 1 e 5.
3. Expanda a instrução switch para incluir os laços for, while e do-while, como mostrado a seguir:
Observe que não há uma instrução default presente nessa versão de switch. Já que o laço do menu assegura que uma resposta válida seja inserida, não é mais necessário incluir uma instrução default para o tratamento de uma escolha
inválida.
| devsjavagirls |
1,925,500 | Understanding Message Queues: A Comprehensive Guide | Introduction In today's distributed and microservices-driven architectures, ensuring reliable... | 0 | 2024-07-16T13:16:06 | https://dev.to/keploy/understanding-message-queues-a-comprehensive-guide-2m1c | webdev, javascript, beginners, programming |
Introduction
In today's distributed and microservices-driven architectures, ensuring reliable communication between different parts of a system is crucial. [Message queues](https://keploy.io/blog/technology/choosing-the-perfect-message-queue-factors-to-consider) have become a fundamental component for facilitating asynchronous communication, improving system resilience, and decoupling services. This article explores the concept of message queues, their importance, implementation strategies, and best practices.
What is a Message Queue?
A message queue is a form of asynchronous service-to-service communication used in serverless and microservices architectures. It enables applications to communicate with each other by sending messages to a queue, which can then be processed by one or more consumers. This decouples the sending and receiving applications, allowing them to operate independently and at different rates.
Importance of Message Queues
1. Decoupling: Message queues help decouple different parts of a system, allowing them to evolve and scale independently. This reduces the dependency between services and enhances modularity.
2. Scalability: By buffering messages, queues can help manage load spikes and ensure that the system remains responsive. Producers can continue to send messages even if consumers are temporarily overloaded.
3. Reliability: Message queues provide a reliable way to deliver messages, ensuring that no messages are lost even if parts of the system fail. This is achieved through features like message persistence and acknowledgments.
4. Asynchronous Processing: Queues enable asynchronous processing, allowing tasks to be processed in the background without blocking the main application flow. This is particularly useful for long-running tasks.
5. Load Balancing: Message queues can distribute messages to multiple consumers, balancing the load and improving system performance and availability.
Key Concepts in Message Queuing
1. Producers and Consumers: Producers are applications or services that send messages to the queue, while consumers are those that retrieve and process these messages.
2. Messages: The data sent to the queue. Messages can contain any type of information that the producer and consumer agree upon.
3. Queues: The data structure that stores the messages until they are processed by consumers.
4. Acknowledgments: Consumers send acknowledgments back to the queue to confirm that a message has been successfully processed. This ensures that messages are not lost and can be retried if necessary.
5. Persistence: Messages can be stored persistently to ensure they are not lost in case of system failures.
Popular Message Queue Implementations
1. RabbitMQ: A widely-used open-source message broker that implements the Advanced Message Queuing Protocol (AMQP). It supports various messaging patterns and provides high reliability and scalability.
2. Apache Kafka: A distributed streaming platform that excels at handling large volumes of data. Kafka is used for building real-time data pipelines and streaming applications.
3. Amazon SQS (Simple Queue Service): A fully-managed message queuing service by AWS that allows you to decouple and scale microservices, distributed systems, and serverless applications.
4. Azure Service Bus: A fully-managed enterprise message broker with message queues and publish-subscribe topics.
5. Google Cloud Pub/Sub: A messaging service that allows you to send and receive messages between independent applications.
Implementing a Message Queue
1. Set Up the Queue: Choose a message queue service or framework that fits your requirements. Set up the queue and configure necessary parameters like message retention, visibility timeout, and dead-letter queues.
2. Define Producers and Consumers: Identify the services that will act as producers and consumers. Implement the logic to send and receive messages.
3. Send Messages: Implement the producer logic to send messages to the queue. This can be done using the SDKs or APIs provided by the message queue service.
4. Receive Messages: Implement the consumer logic to receive and process messages. Ensure that messages are acknowledged after successful processing.
5. Handle Failures: Implement error handling and retry mechanisms to manage message processing failures. Use dead-letter queues to capture messages that cannot be processed successfully.
Best Practices for Using Message Queues
1. Idempotent Consumers: Ensure that consumers are idempotent, meaning that processing the same message multiple times does not have unintended side effects. This is crucial for handling duplicate messages.
2. Message Durability: Configure message persistence to ensure that messages are not lost in case of system failures. This is particularly important for critical messages.
3. Monitoring and Logging: Monitor the message queue for performance metrics, message rates, and errors. Implement logging to track message processing and diagnose issues.
4. Scalability Considerations: Design your system to handle varying loads by scaling producers and consumers independently. Use features like load balancing and sharding to manage high throughput.
5. Security: Implement security measures to protect the message queue and its data. Use encryption, access controls, and secure communication protocols to safeguard sensitive information.
6. Dead-Letter Queues: Use dead-letter queues to capture and analyze messages that cannot be processed successfully. This helps in diagnosing and fixing issues in message processing.
Challenges in Using Message Queues
1. Complexity: Implementing and managing message queues can add complexity to the system architecture. Proper planning and design are required to handle this complexity.
2. Latency: Introducing message queues can add latency to the system, as messages need to be queued and processed asynchronously. This trade-off needs to be managed based on the application's requirements.
3. Message Ordering: Ensuring message ordering can be challenging, especially in distributed systems with multiple consumers. Some message queue services offer features to maintain order, but they might come with trade-offs in performance.
4. Resource Management: Efficiently managing resources like memory and storage is crucial, especially for high-throughput systems. Monitoring and tuning the message queue service is necessary to avoid bottlenecks.
Conclusion
Message queues play a vital role in modern software architectures by enabling decoupled, scalable, and reliable communication between services. They provide numerous benefits, including improved system resilience, asynchronous processing, and load balancing. While there are challenges associated with implementing and managing message queues, following best practices and leveraging robust message queue services can help overcome these hurdles. Integrating message queues into your architecture can significantly enhance the robustness and scalability of your applications.
| keploy |
1,925,546 | Break para sair de um laço | use break para sair de um laço É possível forçar a saída imediata de um laço com a instrução... | 0 | 2024-07-16T16:36:04 | https://dev.to/devsjavagirls/break-para-sair-de-um-laco-5d18 | java | **use break para sair de um laço**
- É possível forçar a saída imediata de um laço com a instrução break.
- Ignora o código restante no corpo do laço e o teste condicional.
- Quando uma instrução break é encontrada dentro de um laço, este é encerrado.
- O controle do programa é retomado na instrução posterior ao laço.
Exemplo:
- Esse programa gera a saída a seguir:
0 1 2 3 4 5 6 7 8 9 Loop complete.
- Embora o laço for tenha sido projetado para ir de 0 a num (que nesse caso é 100), a instrução break encerra-o prematuramente, quando i ao quadrado é maior ou igual a num.
- A instrução break pode ser usada com qualquer laço Java, inclusive os intencionalmente infinitos.
Exemplo: o programa abaixo apenas lê a entrada até o
usuário digitar a letra q.
- Quando usada dentro de um conjunto de laços aninhados, a instrução break encerra apenas o laço mais interno.
Exemplo:
Saída:
Outer loop count: 0
Inner loop count: 0 1 2 3 4 5 6 7 8 9
Outer loop count: 1
Inner loop count: 0 1 2 3 4 5 6 7 8 9
Outer loop count: 2
Inner loop count: 0 1 2 3 4 5 6 7 8 9
Loops complete.
- A instrução break no laço mais interno encerra apenas esse laço.
- O laço externo não é afetado pela instrução break do laço interno.
- Mais de uma instrução break pode aparecer em um laço.
- Muitas instruções break podem desestruturar o código.
- O break que termina uma instrução switch só afeta a instrução switch, não os laços externos.
**Use break como uma forma de goto**
- A instrução break pode ser usada individualmente para fornecer uma alternativa ao goto.
- Java não tem instrução goto devido à sua forma desestruturada de alterar o fluxo de execução.
- Programas com amplo uso de goto são difíceis de compreender e manter.
- goto pode ser útil na saída de conjuntos de laços profundamente aninhados.
- Java define uma forma expandida da instrução break para tratar essas situações.
- A forma expandida de break pode sair de um ou mais blocos de código, rotulados.
- Blocos rotulados não precisam fazer parte de um laço ou switch.
- A forma geral da instrução break rotulada:
break _rótulo_;
- O rótulo é o nome que identifica um bloco de código.
- A instrução break rotulada transfere o controle para fora do bloco rotulado.
- O bloco rotulado deve incluir a instrução break, mas não precisa ser o bloco imediatamente externo.
- Um rótulo é um identificador Java válido seguido por dois pontos.
- A instrução break rotulada retoma a execução no fim do bloco rotulado.
Saída:
i is 1
After block one.
i is 2
After block two.
After block one.
i is 3
After block three.
After block two.
After block one.
After for.
- Quando i é igual a 1:
A primeira instrução if é bem-sucedida.
O break ocorre no fim do bloco rotulado one.
A mensagem "After block one." é exibida.
- Quando i é igual a 2:
A segunda instrução if é bem-sucedida.
O controle é transferido para o fim do bloco rotulado two.
As mensagens "After block two." e "After block one." são exibidas nessa ordem.
- Quando i é igual a 3:
A terceira instrução if é bem-sucedida.
O controle é transferido para o fim do bloco rotulado three.
As três mensagens "After block three.", "After block two.", e "After block one." são exibidas.
- Em outro exemplo:
O break é usado para sair de uma série de laços for aninhados.
Quando a instrução break do laço interno é executada, o controle do programa salta para o fim do bloco rotulado done.
Os outros três laços são ignorados.
Saída:
0
1
2
3
4
5
After i loop
- Este código usa break com um rótulo para sair de três laços aninhados quando k atinge 5.
- É importante o local exato onde um rótulo é inserido – principalmente no trabalho com laços.
Saída:
x and y: 0 0
x and y: 0 1
x and y: 0 0
x and y: 0 1
x and y: 1 0
x and y: 1 1
x and y: 2 0
x and y: 2 1
x and y: 3 0
x and y: 3 1
x and y: 4 0
x and y: 4 1
- Neste código, stop1 é um rótulo associado ao primeiro conjunto de laços for, enquanto stop2 é um rótulo associado a um bloco de código interno ao segundo conjunto de laços for.
- No primeiro conjunto de laços aninhados, o rótulo precede o laço for externo.
- O break com o rótulo stop1 transfere o controle para o fim do bloco for inteiro.
- Isso salta as iterações restantes do laço externo.
- No segundo conjunto de laços aninhados, o rótulo precede a chave de abertura do bloco for externo.
- O break stop2 transfere o controle para o fim do bloco for externo.
- A próxima iteração do laço externo ocorre após o break.
- É importante definir um rótulo antes de usar a instrução break com ele.
- Não é possível usar break com um rótulo que não foi definido para um bloco que a inclua.
Exemplo ( o programa abaixo é inválido e não será compilado)
- Já que o laço rotulado com one não inclui a instrução break, não é possível transferir o controle para esse bloco.
| devsjavagirls |
1,925,501 | Top VueJS Practices for a Successful Web Development Project | What is VueJS? VueJS is an open-source JavaScript framework for building user interfaces... | 0 | 2024-07-16T13:19:23 | https://dev.to/parthprajapatispan/top-vuejs-practices-for-a-successful-web-development-project-16l7 | vue, webdev, website | ## What is VueJS?
VueJS is an open-source JavaScript framework for building user interfaces and single-page applications. Developed by Evan You and released in 2014, VueJS has gained popularity due to its simplicity, flexibility, and ease of integration with other libraries or existing projects. It uses a reactive data binding system and a component-based architecture, making it a powerful tool for developing modern web applications.
## What is VueJS Used For?
VueJS is primarily used for building interactive user interfaces and single-page applications (SPAs). It is suitable for a wide range of applications, from small components to full-fledged web applications. Developers use VueJS to create dynamic and responsive user interfaces, improve application performance, and streamline the development process with its robust ecosystem and powerful tools.
## Top VueJS Practices for Developers
To ensure the success of your VueJS web development project, it is crucial to follow best practices. Here are the top VueJS practices for developers:
**1. Ensure to Use Key Inside V-for**
When using the v-for directive to render lists, always provide a unique key attribute. This helps VueJS track each node’s identity and improves performance by reducing unnecessary re-renders.
```
<ul>
<li v-for="item in items" :key="item.id">{{ item.name }}</li>
</ul>
```
**2. Use Vuex Actions**
Vuex is a state management pattern and library for VueJS applications. Use Vuex actions to handle asynchronous operations and business logic. Actions are dispatched to trigger mutations, ensuring a clear separation of concerns.
```
actions: {
fetchData({ commit }) {
axios.get('/api/data')
.then(response => {
commit('setData', response.data);
});
}
}
```
**3. Use Vuex Mutations**
Mutations are the only way to change the state in Vuex. Always commit mutations to update the state, ensuring a predictable and traceable state management flow.
```
mutations: {
setData(state, data) {
state.data = data;
}
}
```
**4. Stay Consistent with Directive Shorthand**
Use shorthand syntax for directives to keep your code concise and readable. For example, use @ for v-on and : for v-bind.
```
<button @click="handleClick">Click Me</button>
<img :src="imageSrc" alt="Image">
```
**5. Code Splitting**
Code splitting allows you to load parts of your application on demand, reducing the initial load time and improving performance. Use dynamic imports to implement code splitting in VueJS.
```
const Home = () => import('./components/Home.vue');
const About = () => import('./components/About.vue');
```
**6. Routing**
Use Vue Router to manage your application’s navigation. Define routes in a separate file and import them into your main app file. This modular approach keeps your code organized and maintainable.
```
import Vue from 'vue';
import Router from 'vue-router';
import Home from './components/Home.vue';
import About from './components/About.vue';
Vue.use(Router);
const routes = [
{ path: '/', component: Home },
{ path: '/about', component: About }
];
export default new Router({
routes
});
```
**7. Use Refs Instead of Accessing DOM Elements Directly**
Use the ref attribute to reference DOM elements instead of directly manipulating them. This keeps your code more VueJS-centric and less dependent on the actual DOM structure.
```
<input ref="inputField">
```
```
this.$refs.inputField.focus();
```
**8. Add Several Classes to an Element**
Use the :class directive to conditionally apply multiple classes to an element. This approach is cleaner and more manageable than using plain class attributes.
```
<div :class="{ active: isActive, disabled: isDisabled }"></div>
```
**9. For Event Names, Use Kebab Case**
Use kebab-case for custom event names to maintain consistency and readability.
```
this.$emit('custom-event');
```
```
<child-component @custom-event="handleEvent"></child-component>
```
**10. Validate Your Props**
Define prop types and default values in your components to ensure the correct data is passed and to prevent runtime errors.
```
props: {
title: {
type: String,
default: 'Default Title'
},
items: {
type: Array,
required: true
}
}
```
**11. Make Use of the Appropriate Structure**
Follow a consistent project structure to keep your code organized and maintainable. Separate components, views, store, and router files into distinct directories.
```
src/
components/
views/
store/
router/
App.vue
main.js
```
**12. Clean Up After Yourself**
Ensure you remove any event listeners, timers, or other resources in the beforeDestroy or destroyed lifecycle hooks to prevent memory leaks.
```
beforeDestroy() {
clearInterval(this.timer);
}
```
**13. Avoid Using V-HTML**
Avoid using the v-html directive whenever possible to prevent XSS (cross-site scripting) attacks. If you must use it, ensure the content is sanitized.
```
<div v-html="sanitizedContent"></div>
```
**14. Ensure That You Use HTTPS**
Always use HTTPS for your application to ensure secure communication between the client and server. This is especially important for applications that handle sensitive data.
**15. Validate Input from the Users**
Always validate user input to prevent security vulnerabilities and ensure the integrity of your application. Use built-in HTML validation attributes, custom validation logic, or third-party libraries.
```
<input type="text" v-model="username" required>
```
## Features of VueJS
VueJS comes with several powerful features that enhance the development experience and improve application performance:
**1. Virtual DOM**
VueJS uses a virtual DOM to minimize the number of manipulations on the real DOM. This improves performance and makes the application more responsive.
**2. Data Binding**
VueJS provides reactive data binding, allowing you to bind data to your templates seamlessly. This keeps your data and UI in sync automatically.
**3. CSS Transitions and Animations**
VueJS offers built-in support for CSS transitions and animations, making it easy to create smooth and engaging user experiences.
```
<transition name="fade">
<div v-if="show">Hello World</div>
</transition>
```
4. Template
VueJS uses an HTML-based template syntax that binds the DOM to the Vue instance’s data. This declarative approach simplifies the development process.
```
<p>{{ message }}</p>
```
5. Computed Properties
Computed properties are cached based on their dependencies and only re-evaluate when necessary. This optimizes performance and makes your code cleaner.
```
computed: {
reversedMessage() {
return this.message.split('').reverse().join('');
}
}
```
**6. Watcher**
Watchers allow you to perform actions in response to changes in data. This is useful for performing asynchronous operations or complex computations.
```
watch: {
searchQuery(newQuery) {
this.fetchResults(newQuery);
}
}
```
**7. Optimization**
VueJS provides several optimization techniques, such as lazy loading, tree-shaking, and efficient reactivity system, to improve application performance.
## Business Benefits of Using VueJS
Using VueJS for your web development projects offers several business benefits:
**1. High Performance**
VueJS’s virtual DOM and reactivity system ensure high performance and quick response times, providing a smooth user experience.
**2. Easy to Learn and Read**
VueJS’s simple syntax and extensive documentation make it easy to learn and understand, reducing the learning curve for new developers.
3. Cross Platform in Nature
VueJS supports cross-platform development, allowing you to build applications for web, mobile, and desktop using the same codebase.
**4. Easy to Deploy**
VueJS applications are easy to deploy, with several deployment options available, including static site generators, server-side rendering, and progressive web apps.
**5. User Experience**
VueJS’s reactivity system and component-based architecture enable the creation of interactive and engaging user interfaces, enhancing the overall user experience.
## Conclusion
VueJS is a versatile and powerful framework for building modern web applications. By following best practices and leveraging its features, you can create high-performing, maintainable, and scalable applications. Whether you are a beginner or an experienced developer, VueJS offers the tools and flexibility needed to bring your ideas to life.
For businesses looking to enhance their web development projects, it is highly recommended to [hire VueJS developers](https://7span.com/hire-vue-js-developers) who are experienced and knowledgeable in the best practices and advanced features of VueJS. Hiring professional Vue.js development services can ensure that your project is executed efficiently, with high-quality code and optimal performance.
If you're looking to hire Vue.js developers or explore Vue.js development services, you can be confident in the capabilities and benefits that VueJS brings to your web development projects.
| parthprajapatispan |
1,925,531 | [DAY 75-77] I built a timer app using React | Hi everyone! Welcome back to another blog where I document the things I learned in web development. I... | 27,380 | 2024-07-16T13:21:08 | https://dev.to/thomascansino/day-75-77-i-built-a-timer-app-using-react-l3j | learning, react, javascript, buildinpublic | Hi everyone! Welcome back to another blog where I document the things I learned in web development. I do this because it helps retain the information and concepts as it is some sort of an active recall.
On days 75-77, after finalizing the design of the clock timer app using CSS, I started to program the app by adding functionalities to its buttons and display.
In this blog, I'll show you how I finished building this app, how I deployed it to github and how I acquired my front end certificate.
What I did first is to make a function to increment and decrement the break and session states. Adding 1 minute for every click.
I also added a function to handle the start, stop, and reset buttons.
Next, I created a useEffect hook to handle the countdown timer, as well as the loop between session and break states. The code goes like this: if the timer's state is running, the countdown plays and loops through the session and break states after the time runs out. If the timer’s state is not running, the clock pauses. I also returned a clearInterval at the end so that the state of the timer will always be refreshed whenever the hook runs.
The clock will keep on cycling back and forth to 2 states which are the session state and the break state.
For example, I set a 3 minute-session and a 1-minute break. Once the session minutes run out, it will automatically switch its state to break and run a 1 minute timer. After it turns 0, it will automatically switch its state to session and run a 3 minute timer. This will keep on looping until the user presses the stop or reset button.
I personally use this app in my study sessions. I set 30 mins of session time to study and 5 mins for break. It's my pomodoro method of studying.
This app can also be used when working out. Set a 5-min timer for cardio and a 1-min timer for breaks.
Finally, with this project finished, I earned my certificate in front end from freecodecamp and I can say that I am satisfied and happy with my progress considering I've been doing this after my 9-5. I learned so much in the span of 3 months and I am only getting started.
Now, I look forward to studying the back end part of the full stack roadmap as well as the database and APIs.
Anyways, that’s all for now, more updates in my next blog! See you there! | thomascansino |
1,925,532 | ArrayList a simple List DB | I have a habit of building small side projects. Couple of them are KeyVal.org and ArrayList.org. None... | 0 | 2024-07-16T13:22:25 | https://dev.to/prakis/arraylist-a-simple-list-db-1jde | database, restapi | I have a habit of building small side projects. Couple of them are KeyVal.org and ArrayList.org. None of them require API authentication.
**KeyVal.org as the name says it simple key:value db.**
**ArrayList.org is a REST API service for creating lists and adding elements to them.**
You can create a unique list by visiting Arraylist.org. Click on 'Create List', and it will generate a unique list for you and provide you with two URLs.
1. One to add elements to your new list.
2. Second url to see the elements from that list.
Important: Don't forget to store the second url, it contains a password to read.
Use Case: Email subscription form. One good use case is a user subscription form. Let's say you have a "coming soon" page and you want to add an email subscription form.
ArrayList can collect your emails without needing a backend API or database.
A sample HTML Form and Javascript code. Remember to replace the action url with your own list url.
`<html>
<body>
<iframe name="dummyframe" id="dummyframe" style="display: none;"></iframe>
<form name="emailform" action="https://api.arraylist.org/add/7nmldtl6e2/" target="dummyframe" >
<label for="fname">Email:</label><br>
<input type="text" id="email" name="email" value=""><br>
<input type="submit" value="Submit">
</form>
<script>
let eform = document.forms["emailform"];
eform.addEventListener("submit", (e) => {
alert("Thank You");
});
</script>
</body>
</html>`
You can retrieve your form submissions with the second password URL. Let me know if you need any additional features.
| prakis |
1,925,533 | Broadening Stock Patterns: Achieving 61-82% Win Rate | In the context of real-time pattern trading, the odds of success are calculated by Artificial... | 0 | 2024-07-16T13:27:31 | https://dev.to/serhii_bondarenko_9818d56/broadening-stock-patterns-achieving-61-82-win-rate-1j4k | trading, tickeron, ai, pattern | In the context of real-time pattern trading, the odds of success are calculated by Artificial Intelligence ([AI](https://tickeron.com/stock-pattern-scanner/?via=serhii)) to determine the likelihood that a strategy effective in past conditions will continue to perform well. This involves analyzing historical patterns and outcomes across various stocks and ETFs to predict future performance. Especially in intraday trading, identifying the best entry and exit points quickly is critical. The vast number of stocks and ETFs makes this task daunting for individuals, but AI manages it efficiently by not only pinpointing these moments but also evaluating their past performance through backtesting. This provides a statistical foundation for forecasting the success of future transactions, giving traders a significant advantage.
The study of Broadening Formation patterns offers insight into the nuanced behaviors of financial markets, capturing the essence of escalating price volatility through its unique structural representation. This pattern emerges as two divergent trend lines, one ascending and the other descending, graphically portraying a widening trajectory. Often materializing subsequent to notable fluctuations in security prices, this formation is typified by a sequence of progressively higher pivot highs and deeper pivot lows.
Instant Search of Intraday Patterns
Intraday trading, characterized by a brisk pace, involves time frames ranging from 5 minutes to 30 minutes, falling under the category of Day Trading which may require instant search of intraday patterns. For those engaging in slightly longer durations, from 1 hour to potentially days, Swing Trading offers an alternative approach. The AI's capability extends across these varied time spans, with each candle potentially encapsulating different time frames, from as brief as 5 minutes to as extended as 4 hours and even 1 day.
The inception of AI in trading has revolutionized the approach to identifying Intraday Patterns. Scanning thousands of stocks and ETFs every minute, the AI system is adept at discovering patterns across multiple time frames, including 5 minutes, 15 minutes, 30 minutes, 1 hour, and 1 day. This broad spectrum ensures that traders can tailor their strategies to either Day Trading or Swing Trading, depending on their time frame preference and trading style. Upon identifying these patterns, AI proceeds to predict vital trading metrics such as target prices and breakout prices, along with confidence levels and other pertinent statistics. This process simplifies the trading strategy, allowing traders to specify their criteria and let AI handle the complex analysis.
Pattern Odds of Success powered by AI Backtesting
The reliability of AI in trading is further enhanced through rigorous backtesting. This procedure evaluates how identified patterns would have performed historically, thus offering a glimpse into their potential future success. By simulating results—such as annualized returns and win/loss ratios—under retrospective conditions, traders gain insight into the effectiveness of their strategies. It's crucial to recognize, however, that past hypothetical backtest results do not guarantee future returns. This acknowledgment underscores the dynamic nature of financial markets and the continuous evolution of trading strategies for optimal performance.
Broadening Bottom: A Bullish Reversal Indicator (may achieve 74-81% odds of success)
The Broadening Bottom pattern, emblematic of a bullish reversal, manifests as two diverging lines that together form a triangular shape, with the distance between these lines expanding as the pattern develops. For validation, each line of the triangle must be touched a minimum of twice. Distinguished by the security's price marking higher highs and lower lows in an expanding trend, the pattern suggests an impending upward or downward price movement based on the breakout direction. Unlike its counterpart, the Broadening Top, this pattern is preceded by a downward trend in the security price. Traders are advised to engage in trades aligned with the upward trend following a breakout above the pattern's upper boundary, employing strategies such as purchasing securities or call options at the breakout point. To ascertain an exit strategy, the target price is calculated by adding the pattern's height to the breakout price, with a stop order recommended to mitigate losses should the price direction reverse unexpectedly. This pattern typifies scenarios of heightened volatility, often reflecting investor uncertainty and indecision.
Broadening Top: Signaling Potential Reversals (may achieve 74-81% odds of success)
Similarly, the Broadening Top pattern indicates potential price movements, with traders encouraged to initiate trades reflecting an upward trend upon a breakout from the pattern's upper limit. The target exit price is determined in the same manner as the Broadening Bottom, with protective stop orders recommended to minimize losses. This pattern is identifiable by higher highs and lower lows within a widening trend, occurring after a price rise, thereby differing from the Broadening Bottom by its prior price trend.
Ascending and Descending Broadening Wedges (may achieve 71-82% odds of success)
The Ascending Broadening Wedge is characterized by higher highs and higher lows, suggesting a breakout in either direction after a period of strategic buying by large investors. This pattern reflects a dynamic where initial buying spurs further market participation, followed by selling from value investors, leading to a potential price breakout.
Ascending
Descending
Conversely, the Descending Broadening Wedge, marked by lower lows and lower highs, encapsulates a downtrend potentially reversing upon breakout. This pattern emerges from a distribution phase where large investors' extended selling leads to a market reaction, eventually inviting buying from value investors, hinting at a forthcoming price increase.
Key Takeaways and Profit Strategies
Broadening formations, characterized by a megaphone-like widening pattern, signify a market in discord over a security's price, leading to increased volatility. These patterns are relatively rare, often aligning with periods of significant market uncertainty such as geopolitical tensions or economic policy shifts, and may signal investor indecision between bullish and bearish outlooks.
For traders, particularly swing traders and day traders, broadening formations present opportunities to capitalize on volatility rather than directional trends. These traders may employ technical analysis to anticipate price reversals and execute timely trades. The expanding gap between the pattern's trend lines increases potential profit margins for trades within this formation, making it an intriguing scenario for those seeking to exploit short-term market movements.
Tickeron's innovative approach to intraday pattern trading significantly advances the field by utilizing artificial intelligence (AI). This technique enables the rapid identification of precise entry and exit points, analyzing thousands of stocks and ETFs within minutes—a feat unattainable by humans. The platform's versatility is evident in its capacity to examine patterns over a wide range of time frames, from 5 minutes to 4 hours, and even daily, thereby increasing the accuracy of predictions, including target and breakout prices, along with confidence levels. Sergey Savastiouk, Ph.D., CEO and Founder of Tickeron, highlights the critical role of incorporating extensive user feedback into the AI-driven Intraday Pattern, marking a significant advancement in trading technology. This breakthrough considerably shortens the time needed to identify both bearish and bullish patterns, from weeks to mere seconds, reflecting Tickeron's dedication to delivering dependable trading signals. Additionally, the AI's analysis of historical pattern performance aids in forecasting future success probabilities, though it's important to acknowledge that previous hypothetical backtest results do not ensure future outcomes. This development not only improves efficiency but also meets the unique demands of cryptocurrency traders by applying traditional price patterns across different time spans, aiming for enhanced trading results and consistency.
Conclusion
The integration of AI into trading practices marks a significant advancement in the identification and execution of profitable trades. By automating the detection of Intraday Patterns and providing a framework for their historical evaluation, AI empowers traders with the tools necessary for informed decision-making. Whether engaging in the fast-paced environment of Day Trading or navigating the extended timelines of Swing Trading, AI's versatility across different time frames aligns with a broad range of trading objectives. The study of patterns like the Broadening Formation further enriches our understanding of market dynamics, highlighting the intricate behaviors and volatility inherent in financial markets. As we continue to explore the synergies between AI and trading, the potential for enhanced market analysis and strategy development becomes increasingly evident, promising a more informed and strategic approach to trading.
Disclaimers and Limitations | serhii_bondarenko_9818d56 |
1,925,534 | Essential AI Reports for Business Leaders: Mid 2024 edition | Today we have Essential AI Reports for Business Leaders – Mid-Year Edition Curious why AI sentiment... | 0 | 2024-07-16T13:31:46 | https://dev.to/iwooky/essential-ai-reports-for-business-leaders-mid-2024-edition-3a2d | ai, news, analytics, productivity | Today we have _Essential AI Reports for Business Leaders – Mid-Year Edition_
Curious why AI sentiment has shifted recently? Companies are struggling with AI adoption and its value.
In today's episode, discover:
– Why major financial institutions are changing their AI outlook
– Key insights from Goldman Sachs, JPMorgan, and FutureSearch
– Practical strategies to harness AI's potential for real business value
👉 https://iwooky.substack.com/p/essential-ai-reports-for-business-mid-2024
[](https://iwooky.substack.com/p/essential-ai-reports-for-business-mid-2024) | iwooky |
1,925,535 | Make Your Flutter App Super Fast and Fun! 🚀🐱🏍 | Optimizing Flutter App Performance Hey there!👋 1. Optimize Build Methods 🛠️ - Minimize... | 0 | 2024-07-16T13:34:36 | https://dev.to/angerick05/make-your-flutter-app-super-fast-and-fun-2na7 | **Optimizing Flutter App Performance Hey there!👋**
### 1. Optimize Build Methods 🛠️
**- Minimize Widget Builds 🔄**
Imagine if you had to start all over again every time you drew a picture. That would take forever! Instead, try to reuse your old drawings whenever you can. Use const constructors to help keep your app from redrawing things too much.
**- Avoid setState Abuse 🙅♂️**
Don’t press the “refresh” button all the time. Only use setState when you need to update something. Try using state management helpers like Provider, Riverpod, or Bloc for better control.
### 2. Efficient State Management 🌟
**- Use State Management Libraries 📚**
Think of state management libraries as your helpful robot friends. They help keep everything organized and make sure your app doesn’t get messy.
**- Local State 🏡**
Only change the parts of your app that need changing. It’s like cleaning just your room instead of the whole house.
### 3. Optimize Layout and Rendering 🖌️
**- Use LayoutBuilder and MediaQuery 🧩**
Only decide where things go when you need to. It’s like solving a puzzle only when you have all the pieces.
**- Avoid Deep Widget Trees 🌳**
Keep your widget trees simple. If they get too deep, it’s like a tall stack of pancakes that might fall over!
### 4. Image Optimization 📸
**- Resize Images 📏**
Big pictures can slow down your app. Resize them so they fit just right, like cutting a big cookie into bite-sized pieces.
**- Use Efficient Formats 🌐**
Use picture formats like WebP, which are small but still look good, like a tiny but delicious cookie!
**- Cache Images 🗄️**
Save your pictures so you don’t have to load them again and again. It’s like keeping your favorite toy handy so you don’t have to search for it every time.
### 5. Optimize Network Calls 📶
**- Batch Network Requests 📦**
Send multiple network requests at once. It’s like shopping for everything in one trip instead of making lots of trips.
**- Use Efficient Data Formats 📊**
Use simple data formats like JSON to keep things quick. It’s like using easy-to-read books instead of heavy, complicated ones.
### 6. Reduce Jank 🚀
**- Avoid Long Operations on Main Thread ⏳**
Move long tasks to the background. It’s like doing your homework in a quiet room so you can play quickly afterward.
**- Smooth Animations 🎢**
Use WidgetsBinding.instance!.addPostFrameCallback to keep your animations smooth. Think of it like a roller coaster that never jerks or stops suddenly.
### 7. Memory Management 🧠
**- Dispose Controllers 🚮**
Throw away old things your app doesn’t need anymore. It’s like cleaning out your toy box to make room for new toys.
**- Profile Memory Usage 📊**
Check how much memory your app is using. It’s like checking your piggy bank to see how much money you have.
### 8. Leverage iOS-Specific Optimizations 🍏
**- Use Swift/Objective-C for Critical Code 🚀**
Sometimes, writing code in Swift or Objective-C can make it faster. It’s like switching to a faster bike for a race.
**- Optimize Launch Time ⏱️**
Use the flutter_native_splash package to make your app start quickly, just like a superhero jumping into action!
### 9. Use Performance Profiling Tools 🛠️
- Flutter DevTools 🖥️
Use tools like Flutter DevTools to see how your app is doing. It’s like a doctor checking your health to make sure you’re strong and fast.
- Instruments 🎻
Use Apple’s Instruments tool to check your app’s performance on iOS. It’s like tuning a musical instrument to make sure it sounds perfect.
### 10. Code Splitting and Lazy Loading 🍕➡️🍕🍕🍕
**- Lazy Loading 📦**
Load parts of your app only when needed. It’s like saving some slices of pizza for later instead of eating them all at once.
**- Code Splitting 📂**
Split your code into smaller parts that can be loaded when needed. It’s like breaking your homework into small tasks, so it’s easier to do.
Now you’re ready to make your Flutter app super fast and fun! Remember, keep it simple, use small pictures, clean up old stuff, and share the work. Happy coding! 🌟🐱💻
Thank you for reading. I hope you enjoyed it and learned from it.
Sign up to the mailing list to get notified for new articles drop.
For questions and/or suggestions, I am available through the comments section, email [gyannickange@gmail.com](mailto:gyannickange@gmail.com), or Linkedin [@gyannickange](https://www.linkedin.com/in/gyannickange)
Thank you and we will catch up on the next article!!! | angerick05 | |
1,925,536 | Dev, café e um pouco de história | Olá pequeno agricultor de software 😄 Depois de muito tempo, acredito agora está iniciando novos... | 0 | 2024-07-16T13:38:09 | https://dev.to/paulocavalcante/dev-cafe-e-um-pouco-de-historia-1mn5 | webdev, beginners, programming, career | <div align="justify"> Olá pequeno agricultor de software :smile:
Depois de muito tempo, acredito agora está iniciando novos caminhos, tenho uma breve história perto de mestres que tive a oportunidade de conhecer durante a minha jornada, mas todas estas me agregaram bastante na vida em todos os sentindos, isso parece ser meio maluco, mas quando unimos o bem e o útil tudo fica claro.
</div>
A primeiro momento vou apenas contar um pouco dessa história bem resumida e então a ideia é produzir os posts mais técnicos e também de ajuda que são relacionados a processos pessoais para melhoria profissional de um desenvolvedor.
### 1 - O que te motiva ?
Bom, tenho 10 anos na carreira, iniciei como suporte ao cliente e tive oportunidade de atuar no desenvolvimento mesmo estando no suporte, para muitos desvio de função, para mim, um grande divisor de água que mudou tudo no garoto que buscava um sonho vindo para Goiânia de conseguir crescer profissionalmente e ter mais dinheiro para ajudar minha família, meu pilar, porém, não sabia que pegar ônibus era difícil :confused: foi o primeiro desafio haha vindo de uma cidade do interior não era necessário os transportes públicos ( apesar que tinha ) já que você anda praticamente a cidade inteira a pé, sério, quem é de interior sabe bem como é isso.
No começo quando me falaram que eu participaria do desenvolvimento eu realmente fiquei com o pé atrás, sobre fazer uma coisa que eu não tinha domínio e principalmente porque não estava fazendo sentindo algum, mas depois de 2 anos loguei na minha conta de e-mail e escrevi para os dois responsáveis, e mandei meus sinceros agradecimentos por terem me proporcionado todo o conhecimento possível, no qual me ingressou na área e realmente gostar de produzir e criar sistemas que fossem agregar na vida das pessoas, e faz todo sentindo você agradecer quem te iniciou neste circulo, até se essa pessoa seja você mesmo.
Ser grato é essencial! Ainda mais quando existem pessoas para acreditar em você, porque sabemos que o primeiro emprego na nossa área em determinados momentos pode ser cruel, pelo nível de dificuldade em encontrar alguém disposto a contratar uma pessoa inexperiente, por todos quererem tudo para o famoso ontem, isso não é uma crítica as empresas, é apenas uma observação, porque sabemos que as empresas precisam sobreviver em meio as demandas ( retirando as empresas que realmente não sabem o que é uma demanda nesse caso é uma crítica mesmo ).
Hoje consigo ajudar minha família e pretendo ir mais longe agora, porque uma meta alcançada significa apenas o começo de uma jornada por isso a importância das metas bem estabelecidas em sua vida, acredito que aqui é um bom começo, disciplina, conduta, ética e erros, porque o que somos nós sem os erros que praticamos ?
Ahh, muito obrigado se você chegou até aqui, muito importante para mim.
E sua trajetória ? o que te motivou/motiva ?
Um grande abraço e até a próxima :sparkles:
| paulocavalcante |
1,925,537 | How To Conduct Effective Keyword Research | Introduction Keyword research is a foundational aspect of SEO (Search Engine... | 0 | 2024-07-16T13:38:33 | https://dev.to/rohiturane/how-to-conduct-effective-keyword-research-452f | keywords, seo |
## Introduction
Keyword research is a foundational aspect of SEO (Search Engine Optimization). It involves identifying the words and phrases that people use when searching for information online. By understanding these keywords, you can optimize your content to attract more visitors to your website. This guide will walk you through the process of conducting effective keyword research, ensuring that your SEO efforts are both strategic and successful.
## Why Keyword Research is Important
1. Increased Traffic: Targeting the right keywords helps you attract more visitors to your site.
2. Better Understanding of Your Audience: Keywords reveal what your audience is interested in and looking for.
3. Improved Content Strategy: Knowing popular keywords helps you create content that meets your audience's needs.
4. Competitive Advantage: Identifying low-competition keywords allows you to rank higher in search results.
## Steps to Conduct Effective Keyword Research
1. Brainstorm Seed Keywords
Seed keywords are the starting point of your keyword research. These are basic terms related to your business, products, or services. Begin by brainstorming a list of words that you think potential customers might use to find your offerings. For example, if you run a bakery, your seed keywords might include "cupcakes," "bread," and "pastries."
2. Use Keyword Research Tools
There are several tools available that can help you expand your list of keywords and provide valuable data on each term. Some popular keyword research tools include:
- Google Keyword Planner: Offers keyword suggestions and data on search volume and competition.
- Ahrefs: Provides comprehensive keyword analysis, including difficulty scores and click potential.
- SEMrush: Offers insights into keyword trends, competition, and related terms.
- Ubersuggest: A free tool that generates keyword ideas and provides basic metrics.
Enter your seed keywords into these tools to discover additional keyword ideas and gather important metrics such as search volume (how often a keyword is searched) and keyword difficulty (how hard it is to rank for a keyword).
3. Analyze Keyword Metrics
When evaluating keywords, consider the following metrics:
- Search Volume: Indicates how many times a keyword is searched per month. Higher search volumes can drive more traffic but may also have more competition.
- Keyword Difficulty: Measures how challenging it is to rank for a keyword. Aim for a balance between search volume and difficulty.
- Cost Per Click (CPC): Useful for understanding the commercial value of a keyword, especially if you plan to run paid search campaigns.
- Trends: Use tools like Google Trends to see how keyword popularity changes over time.
You can read more about the [article](https://domainmaker.in/blog/post/effective-keyword-research) | rohiturane |
1,925,538 | Unlocking the Power of Voice UI in React with Sista AI | Did you know you can create dynamic voice user interfaces in React to revolutionize user interaction? Explore the power of AI with Sista AI for a smarter app experience! 🌟 | 0 | 2024-07-16T13:41:51 | https://dev.to/sista-ai/unlocking-the-power-of-voice-ui-in-react-with-sista-ai-57hk | ai, react, javascript, typescript | <h2>Revolutionizing User Interaction</h2><p>Enhance user engagement and accessibility with voice user interfaces in React. Sista AI offers cutting-edge solutions that transform apps into smart platforms with AI voice assistants.</p><h2>Optimizing User Experience</h2><p>Integrate advanced technologies like ChatGPT for realistic voice interfaces. Sista AI excels in emotional performance and narration pacing, leading the industry in AI voice interaction.</p><h2>Empowering Developers and Users</h2><p>Develop voice assistant mobile apps using React Native and ChatGPT integration. Explore the seamless integration of Sista AI to create user-centric applications with enhanced AI capabilities.</p><h2>Sista AI: Redefining Voice UI</h2><p>Transform text-to-speech applications with ReactJS into dynamic voice-driven experiences. Sista AI elevates the accessibility and user-friendliness of apps, catering to diverse user needs.</p><h2>Enhancing User Engagement</h2><p>With Sista AI's AI Voice Assistant, users can effortlessly interact with apps through voice commands, boosting engagement, accessibility, and operational efficiency. Sign up now on <a href='https://smart.sista.ai/?utm_source=sista_blog&utm_medium=blog_post&utm_campaign=unlocking_power_voice_ui_react'>Sista AI</a> and claim your FREE credits for a smarter app experience.</p><br/><br/><a href="https://smart.sista.ai?utm_source=sista_blog_devto&utm_medium=blog_post&utm_campaign=big_logo" target="_blank"><img src="https://vuic-assets.s3.us-west-1.amazonaws.com/sista-make-auto-gen-blog-assets/sista_ai.png" alt="Sista AI Logo"></a><br/><br/><p>For more information, visit <a href="https://smart.sista.ai?utm_source=sista_blog_devto&utm_medium=blog_post&utm_campaign=For_More_Info_Link" target="_blank">sista.ai</a>.</p> | sista-ai |
1,925,539 | How Wedding App Development Can Simplify Your Big Day | Planning a wedding can be a daunting task, with numerous details to coordinate, vendors to manage,... | 0 | 2024-07-16T13:42:19 | https://dev.to/chariesdevil/how-wedding-app-development-can-simplify-your-big-day-o5j | customappdevelopment, weddingappdevelopment | Planning a wedding can be a daunting task, with numerous details to coordinate, vendors to manage, and guests to entertain. However, with the advent of wedding app development, much of the stress and complexity associated with wedding planning can be alleviated. A well-designed wedding app can streamline the planning process, enhance communication, and create a more enjoyable experience for everyone involved.
Here’s how wedding app development can simplify your big day.
**1.Centralized Planning and Coordination**
A wedding app serves as a centralized hub for all your planning needs. It can house your wedding checklist, timeline, budget tracker, and vendor contacts in one place. This eliminates the need for multiple spreadsheets and documents, making it easier to keep track of tasks and deadlines. With everything organized within a single app, you can easily monitor your progress and ensure that nothing is overlooked.
**2. Guest Management Made Easy**
One of the most challenging aspects of wedding planning is managing the guest list. A wedding app can simplify this by allowing you to track RSVPs, dietary preferences, and seating arrangements effortlessly. You can send out digital invitations, which not only saves on printing costs but also allows for instant updates and responses. Additionally, the app can send reminders to guests who have not yet RSVP'd, ensuring you have an accurate headcount well in advance.
**3. Seamless Communication**
Effective communication is key to successful wedding planning. A wedding app can facilitate this by providing a platform for you to communicate with your wedding party, vendors, and guests. You can share updates, send out reminders, and even create group chats for different segments of your wedding, such as the bridal party or family members. This ensures that everyone is on the same page and reduces the likelihood of misunderstandings or missed information.
**4. Customizable Features**
Every wedding is unique, and a good wedding app should reflect this. Many wedding apps offer customizable features that allow you to tailor the app to your specific needs. Whether you want to include a countdown timer, a photo-sharing feature, or a detailed schedule of events, you can customize the app to align with your vision. This personalization helps make the app more relevant and useful for your wedding.
**5. Vendor Management**
Coordinating with multiple vendors can be a logistical nightmare. A wedding app can simplify vendor management by providing a dedicated space to store contracts, contact information, and payment schedules. You can also set reminders for follow-up meetings and payment due dates, ensuring that you stay on top of all vendor-related tasks. Some apps even offer vendor recommendation features, helping you find reliable professionals based on user reviews and ratings.
**6. Budget Tracking**
Sticking to a budget is crucial for most couples, and a wedding app can help you manage your finances effectively. You can input your overall budget and allocate funds to different categories, such as venue, catering, and attire. The app can then track your spending and alert you if you are nearing your budget limit. This feature helps you make informed decisions and avoid overspending, ensuring that your wedding remains financially manageable.
**7. Enhanced Guest Experience**
A wedding app is not just beneficial for the couple; it can also enhance the experience for your guests. Through the app, guests can access important information such as the event schedule, venue directions, and dress code. They can also use the app to navigate the venue, view seating arrangements, and participate in interactive features like photo-sharing or live polling. This creates a more engaging and enjoyable experience for your guests, making your wedding memorable for everyone.
**8. Real-Time Updates**
Weddings are dynamic events, and plans can change at the last minute. A wedding app allows you to provide real-time updates to your guests, ensuring that everyone is informed of any changes. Whether it’s a shift in the ceremony time, a change in the venue, or an update on the weather, you can instantly notify your guests through the app. This reduces confusion and helps the day run smoothly, even if unexpected changes occur.
**9. Eco-Friendly Alternative**
In today's environmentally conscious world, many couples are looking for ways to reduce their wedding's carbon footprint. A wedding app provides an eco-friendly alternative to traditional paper invitations and printed schedules. By going digital, you can minimize paper waste and contribute to a more sustainable wedding. Additionally, digital invitations are less likely to get lost or forgotten, ensuring better guest engagement.
**10. Memories and Keepsakes**
Finally, a wedding app can serve as a digital keepsake of your special day. Many apps offer features that allow guests to upload photos and videos, creating a shared album of memories. You can also include a guestbook feature, where attendees can leave messages and well wishes. After the wedding, you can download and preserve these digital mementos, allowing you to relive the joy and celebration for years to come.
## Conclusion
[Wedding app development](https://devtechnosys.ae/arabic-wedding-planner-app-development.php) has revolutionized the way couples plan and experience their big day. By centralizing planning tasks, enhancing communication, and providing customizable features, a wedding app can significantly simplify the wedding planning process. It not only benefits the couple but also creates a more enjoyable and engaging experience for guests. Embracing wedding app development can turn the complexities of wedding planning into a streamlined, stress-free, and memorable journey. | chariesdevil |
1,925,540 | The Evolution and Impact of Electronics in Modern Society | Electronics have become an integral part of modern society, revolutionizing various aspects of daily... | 0 | 2024-07-16T13:45:18 | https://dev.to/rogger001/the-evolution-and-impact-of-electronics-in-modern-society-56cl | Electronics have become an integral part of modern society, revolutionizing various aspects of daily life, industry, and technology. The journey of electronics from simple circuits to sophisticated systems has been marked by innovation, miniaturization, and integration, profoundly impacting communication, entertainment, healthcare, and more. This essay explores the evolution, key components, and societal impact of electronics, highlighting the transformative role they play in the contemporary world.
**The Evolution of Electronics**
The history of electronics dates back to the early 20th century with the invention of the vacuum tube, which laid the foundation for electronic circuits. The vacuum tube was a crucial component in early radios, televisions, and computers. However, it was bulky, consumed a lot of power, and was prone to failure. The invention of the transistor in 1947 by John Bardeen, Walter Brattain, and William Shockley marked a significant milestone, leading to the miniaturization and increased reliability of electronic devices.
The development of the integrated circuit (IC) in the late 1950s by Jack Kilby and Robert Noyce further revolutionized electronics. ICs allowed multiple transistors to be embedded in a single chip, drastically reducing the size and cost of electronic devices while enhancing their performance. This innovation paved the way for the microprocessor, which became the heart of modern computers and numerous other electronic devices.
**Key Components of Electronics**
Electronics rely on various fundamental components, each playing a critical role in the functioning of electronic systems. Some of the key components include:
**Transistors:** Acting as the building blocks of modern electronic devices, transistors amplify and switch electronic signals. They are crucial in the creation of microprocessors, memory chips, and other ICs.
**Capacitors:** These components store and release electrical energy, filtering out noise and stabilizing power supplies in electronic circuits.
**Resistors:** Resistors control the flow of electric current in a circuit, ensuring that components receive the appropriate voltage and current levels.
**Diodes:** Diodes allow current to flow in one direction only, providing rectification and protection in electronic circuits.
**Inductors:** Inductors store energy in a magnetic field when an electric current flows through them, playing a vital role in filtering and energy storage applications.
**Printed Circuit Boards (PCBs):** PCBs provide the physical platform for mounting and interconnecting electronic components, enabling complex circuitry in a compact form.
**Impact on Communication**
The impact of electronics on communication has been profound. The advent of electronic communication systems has transformed how people connect, share information, and conduct business. The invention of the telephone by Alexander Graham Bell in 1876 was a significant breakthrough, but it was the development of electronic communication technologies that truly revolutionized the field.
The creation of the transistor enabled the miniaturization of communication devices, leading to the development of portable radios and televisions. The introduction of the Internet and the World Wide Web in the late 20th century, coupled with advancements in networking technologies, further revolutionized communication. Today, smartphones, which are essentially powerful handheld computers, have become ubiquitous, enabling instant communication, access to information, and a myriad of services at our fingertips.
**Influence on Entertainment**
Electronics have also had a transformative impact on the entertainment industry. The development of television brought visual entertainment into homes worldwide, and the transition from analog to digital broadcasting improved picture and sound quality. The advent of video recording and playback technologies, such as VCRs and DVDs, allowed people to enjoy movies and shows on demand.
The gaming industry has also benefited immensely from advances in electronics. From the early days of arcade games to the sophisticated home gaming consoles and virtual reality systems of today, electronic technology has continually pushed the boundaries of interactive entertainment. High-definition graphics, immersive sound, and responsive controls have created rich gaming experiences that captivate audiences of all ages.
**Role in Healthcare**
In healthcare, electronics have played a pivotal role in enhancing diagnostic, therapeutic, and monitoring capabilities. Medical devices such as MRI machines, CT scanners, and ultrasound equipment rely on advanced electronic components to provide detailed images of the human body, aiding in accurate diagnosis and treatment planning.
Wearable health monitors, such as smartwatches and fitness trackers, have become popular tools for individuals to track their health and fitness metrics in real-time. These devices use sensors and microprocessors to monitor heart rate, physical activity, sleep patterns, and more, empowering users to make informed decisions about their health.
Additionally, the development of telemedicine platforms has leveraged electronic communication technologies to provide remote healthcare services. Patients can consult with healthcare professionals via video calls, access medical records online, and receive remote monitoring, improving accessibility and convenience in healthcare delivery.
**Industrial and Commercial Applications**
In the industrial and commercial sectors, electronics have driven automation, efficiency, and innovation. The introduction of programmable logic controllers (PLCs) and automation systems has revolutionized manufacturing processes, enabling precise control and monitoring of production lines. This has led to increased productivity, reduced waste, and improved product quality.
The Internet of Things (IoT) is another area where electronics have made a significant impact. IoT refers to the network of interconnected devices that communicate and share data, enabling smart homes, smart cities, and intelligent industrial systems. From smart thermostats that optimize energy usage to connected sensors that monitor environmental conditions, IoT applications are transforming how we live and work.
**Environmental Considerations**
While electronics have brought numerous benefits, they also pose environmental challenges. Electronic waste (e-waste) is a growing concern as devices become obsolete and are discarded. E-waste contains hazardous materials that can harm the environment and human health if not properly managed. Efforts to address this issue include recycling programs, regulations on electronic waste disposal, and the development of sustainable electronics.
**The Future of Electronics**
The future of electronics holds exciting possibilities as technology continues to advance. The development of quantum computing promises to revolutionize computing power and solve complex problems that are currently beyond the capabilities of classical computers. Flexible electronics, such as bendable displays and wearable devices, are opening up new applications and form factors.
Artificial intelligence (AI) and machine learning are also set to transform electronics, enabling smarter and more autonomous systems. From self-driving cars to intelligent personal assistants, AI-powered electronics are poised to enhance convenience, efficiency, and safety in various aspects of life.
In conclusion, electronics have become a cornerstone of modern society, driving innovation and progress in numerous fields. From communication and entertainment to healthcare and industry, the impact of electronics is profound and far-reaching. As technology continues to evolve, the future of electronics holds immense potential to further enhance our lives and address global challenges.
**[Click here](https://sunasusa.com/)** to read more articles. | rogger001 | |
1,925,541 | Check Loop in LinkedList | problem //tc :O(N) N is the length of the linkedList //sc:(1) constant space complexity /** *... | 26,409 | 2024-07-16T13:49:21 | https://dev.to/prashantrmishra/check-loop-in-linkedlist-ie9 | linkedist, java | [problem](https://leetcode.com/problems/linked-list-cycle/description/)
```java
//tc :O(N) N is the length of the linkedList
//sc:(1) constant space complexity
/**
* Definition for singly-linked list.
* class ListNode {
* int val;
* ListNode next;
* ListNode(int x) {
* val = x;
* next = null;
* }
* }
*/
public class Solution {
public boolean hasCycle(ListNode head) {
//we can use double jump to find if loop is present in the loop
if(head ==null || head.next ==null) return false;
ListNode node1 = head;
ListNode node2 = head.next;
while(node1!=null && node2!=null){
if(node1==node2) return true;
node1 = node1.next;
node2 = node2.next ==null ? null : node2.next.next;
}
return false;
}
}
``` | prashantrmishra |
1,925,542 | Understanding Adversarial Attacks on LLMs, AAAL Pt.1 | This series is a part of the Adversarial Attacks Against LLMs, a Multi-part Series, breaking down the... | 28,080 | 2024-07-16T13:49:21 | https://dev.to/tunehqai/understanding-adversarial-attacks-on-llms-aaal-pt1-38ip | llm, cybersecurity, security, nlp |
_This series is a part of the Adversarial Attacks Against LLMs, a Multi-part Series, breaking down the current landscape of LLM and GenAI Security against Adversarial Attacks._
---
LLMs are changing how we interact with technology, but they come with risks. These powerful models can lead to market share losses or even costly lawsuits. Adversarial attacks, and deliberate attempts to make machines malfunction, have become a significant concern in the ML community.
Join me as I try to understand and break down adversarial attacks and the measures that can be taken to prevent such attacks in this multi-part series where we talk about prevention against Adversarial Attacks for LLM Powered systems, which comes complete with Theory, Practicals, and Studies and Tutorials.
**Understanding Adversarial Attacks**
These attacks can cause anything from information leaks to incorrect outputs. Unlike image recognition systems, detecting and mitigating these attacks in text models is trickier due to the discrete nature of text data.
**Types of Attacks**
1. **Token Manipulation**: Feeding faulty tokens into an LLM can result in irrelevant or false information. Ensuring models like LLaMA and GPT handle these gracefully is crucial.
2. **Token Insertion**: Adding extra tokens can change the context and produce nonsense.
3. **Token Substitution**: Replacing tokens might mislead the model.
4. **Token Deletion**: Removing tokens can lead to missing information and incorrect outputs.
5. **Prompt Attacks**: Manipulating the model via prompts, common in models like GPT-3, but mitigated in GPT-4 with better guardrails.
**Guarding Against Attacks**
Techniques like prompt injection and jailbreaking confuse the model with mixed prompts or false contexts, leading to undesirable outputs. For instance, giving LLaMA a prompt that combines trusted and untrusted information can make it output incorrect translations or sensitive information.
**Conclusion**
Making LLMs robust against adversarial attacks is crucial. Follow me as I continue this suit and dive deeper into preventive measures that can be taken against Adversarial Attacks.
---
_Do leave suggestions for future topics or subject interests that you would like to see explored next!_
| aryankargwal |
1,925,543 | RAG Engine: Chi sono gli utenti? Quali sono i tipi dati utilizzati? Come funziona? | RAG Engine, che sta per Retrieval Augmented Generation engine, è un tipo di modello di intelligenza... | 0 | 2024-07-16T13:50:23 | https://dev.to/corradofacchini/rag-engine-chi-sono-gli-utenti-quali-sono-i-tipi-dati-utilizzati-come-funziona-202l | ragengine, utentiragengine, fontedatiragengine, corradofacchini |
**RAG Engine**, che sta per Retrieval Augmented Generation engine, è un tipo di modello di intelligenza artificiale (AI) che **combina tecniche di recupero e generazione per produrre contenuti**.
In poche parole, utilizza due abilità:
1. **Recupero**: cerca e recupera informazioni rilevanti da un database di grandi dimensioni, come documenti, articoli web, motori di ricerca o altre fonti di testo.
2. **Generazione**: utilizza le informazioni recuperate per generare nuovi testi, come risposte a domande, riassunti, traduzioni o anche formati creativi come poesie o script
L'aspetto innovativo di un motore RAG è che non si limita a riciclare le informazioni esistenti. Invece, li **combina ed elabora in modo intelligente per creare contenuti nuovi e originali**.
## Come funziona?
Come al solito, utilizzo diversi metodi per spiegare il flusso: schema BPMN, elenco delle funzionalità ed esempio.
Nel flusso abbiamo 4 sezioni:
- Utente
- Interfaccia RAG
- Motore RAG
- Origine dei dati
## UTENTE
Gli utenti di un motore RAG (Retrieval-Augmented Generation) possono essere molto diversi e provenire da settori variegati. Ecco una panoramica dei principali utenti e delle loro potenziali applicazioni:
- Settore dell'informazione e della ricerca
Ricercatori: Possono utilizzare i motori RAG per ottenere risposte precise e dettagliate a domande complesse attingendo a vasti database di letteratura scientifica e altre fonti.
Giornalisti: Possono sfruttare i motori RAG per ottenere informazioni contestualizzate su eventi attuali, retroscena e dati storici per i loro articoli.
- Settore dell'istruzione
Insegnanti e docenti: Possono utilizzare i motori RAG per fornire risposte dettagliate e aggiornate alle domande degli studenti, migliorando la qualità dell'insegnamento.
Studenti: Possono usare questi strumenti per la ricerca, lo studio e l'apprendimento approfondito, ottenendo risposte precise e informazioni contestuali su una vasta gamma di argomenti.
- Settore aziendale
Servizio clienti: I motori RAG possono essere utilizzati nei chatbot e nei sistemi di supporto clienti per fornire risposte rapide e accurate alle domande dei clienti.
Marketing e vendite: Possono utilizzare i motori RAG per analizzare i dati di mercato, le tendenze dei consumatori e le informazioni sulla concorrenza.
- Settore medico e sanitario
Medici e operatori sanitari: Possono utilizzare i motori RAG per ottenere informazioni aggiornate su trattamenti, diagnosi e ricerca medica, a supporto di decisioni cliniche informate.
Pazienti: Possono accedere a informazioni mediche affidabili e dettagliate su condizioni di salute e trattamenti.
- Settore legale
Avvocati e consulenti legali: Possono utilizzare i motori RAG per recuperare e analizzare casi legali, leggi e regolamenti, migliorando la preparazione e la strategia legale.
Giudici: Possono sfruttare questi strumenti per ottenere rapidamente informazioni pertinenti e precedenti legali durante il processo decisionale.
- Sviluppatori di software e ingegneri
Sviluppatori: Possono usare i motori RAG per ottenere risposte rapide a domande tecniche, accedere alla documentazione e trovare esempi di codice.
DevOps Engineer: Possono utilizzare questi strumenti per recuperare informazioni su best practice, risoluzione dei problemi e configurazioni ottimali.
- Settore finanziario
Analisti finanziari: Possono usare i motori RAG per ottenere dati economici, previsioni di mercato e analisi finanziarie dettagliate.
Investitori: Possono accedere a informazioni aggiornate e contestuali su investimenti, tendenze di mercato e analisi dei rischi.
- Utenti generici
Consumatori: Possono utilizzare i motori RAG per ottenere risposte rapide e accurate a domande generali, migliorando l'accesso all'informazione per il grande pubblico.
Appassionati di tecnologia e hobbisti: Possono sfruttare questi strumenti per apprendere nuovi argomenti, esplorare interessi personali e ampliare le loro conoscenze.
- Governo e pubblica amministrazione
Funzionari pubblici: Possono usare i motori RAG per accedere a dati politici, legislativi e amministrativi, a supporto della formulazione di politiche e del processo decisionale del governo.
Cittadini: Possono utilizzare questi strumenti per ottenere informazioni sui servizi pubblici, i regolamenti e le procedure amministrative.
- Settore creativo
Autori e scrittori: Possono utilizzare i motori RAG per la ricerca e l'ispirazione, ottenendo informazioni dettagliate su vari argomenti per le loro opere creative.
Produttori di contenuti digitali: Possono sfruttare questi strumenti per migliorare la qualità e l'accuratezza dei contenuti prodotti, come articoli, video e podcast.
Riassumendo, i motori RAG possono essere utilizzati da una vasta gamma di utenti, ognuno dei quali può beneficiare della capacità di questi strumenti di combinare in modo efficiente e accurato il recupero delle informazioni e la generazione di risposte.
## RAG Interface
Un'interfaccia RAG (Retrieval-Augmented Generation) è un'interfaccia progettata per interagire con un motore RAG. Questa interfaccia consente agli utenti di porre domande e ricevere risposte generate dal sistema, che combinano le informazioni recuperate da diverse fonti e l'elaborazione di modelli di linguaggio naturale.
## RAG Engine
Un motore RAG (Retrieval-Augmented Generation) è il cuore tecnologico che combina il recupero delle informazioni con la generazione della risposta. È costituito da diversi componenti tecnici e funzionali che lavorano insieme per produrre risposte dettagliate e contestualizzate basate su una combinazione di dati preesistenti e capacità di generazione del linguaggio naturale.
> In sintesi
> RAG Engine: è il motore tecnologico che esegue il recupero delle informazioni e la generazione di risposte, combinando modelli di ricerca e modelli generativi.
> RAG Interface: è l'interfaccia utente che consente agli utenti di interagire con il RAG Engine, presentando domande e visualizzando le risposte in un formato utilizzabile e accessibile.
## Data source
Le fonti dati per un motore RAG (Retrieval-Augmented Generation) sono le fonti di informazioni da cui il sistema recupera i dati necessari per rispondere alle domande degli utenti. Queste origini possono variare ampiamente a seconda del contesto dell'applicazione e possono includere un'ampia gamma di tipi di dati.
## Tipi di Data Sources
Questo testo categorizza diverse tipologie di fonti di conoscenza che possono essere utilizzate da motori di ricerca avanzati. Vediamolo nel dettaglio:
**Basi di dati strutturati**
Basi di dati relazionali: Come MySQL, PostgreSQL e Oracle, che memorizzano i dati in tabelle strutturate con relazioni definite.
Basi di dati NoSQL: Come MongoDB, Cassandra e Redis, che archiviano i dati in formati non relazionali (documenti, coppie chiave-valore, colonne larghe, grafici).
**Documenti testuali**
Articoli accademici: Pubblicazioni scientifiche, tesi e articoli accademici accessibili tramite database come PubMed, arXiv e Google Scholar.
Documentazione tecnica: Manuali, guide utente, documentazione API e white paper.
Siti web e blog: Contenuti pubblicati su siti web, blog aziendali e forum di discussione.
**Repository di file**
PDF e documenti Office: File PDF, documenti Word, Excel e PowerPoint contenenti rapporti, studi e presentazioni.
Archivi di testo: Raccolte di testi digitalizzati come libri, articoli e riviste.
**API pubbliche e private**
API di servizi web: Interfacce di programmazione per applicazioni che forniscono dati in tempo reale da servizi web (ad esempio, API meteo, API finanziarie).
API dati aziendali: API interne che consentono l'accesso ai dati aziendali per scopi specifici (ad esempio, CRM, ERP).
**Set di dati open data**
Set di dati governativi: Dati resi disponibili da enti governativi su portali open data (ad esempio, data.gov).
Set di dati pubblici: Dati raccolti e distribuiti da organizzazioni non governative, istituzioni accademiche e iniziative open data.
**Contenuti multimediali**
Video e audio: Trascrizioni di video educativi, podcast e conferenze.
Immagini e grafici: Contenuti visivi con descrizioni e metadati associati.
**Archivi di chat e conversazioni**
Registri chat: Cronologie di conversazioni di supporto clienti, chat interne e forum di discussione.
Conversazioni sui social media: Dati estratti da piattaforme come Twitter, Facebook e Reddit.
## Come funzionano i data source in un RAG Engine?
1. Indicizzazione dei dati :
Preparazione: i dati vengono raccolti, puliti e preelaborati per l'indicizzazione.
Indicizzazione: i documenti vengono indicizzati per consentire un recupero rapido ed efficiente.
2. Recupero delle informazioni:
Query: quando un utente pone una domanda, RAG Engine esegue una query sulle origini dati indicizzate per recuperare i documenti più rilevanti.
Classificazione: i documenti recuperati vengono classificati in base alla loro rilevanza per la query.
3. Generazione della risposta:
Estrazione delle informazioni: le informazioni chiave vengono estratte dai documenti recuperati.
Sintesi: un modello generativo utilizza le informazioni estratte per creare una risposta coerente e contestualizzata.
## Esempi di fonti dati specifiche tra le più grandi
- Wikipedia: utilizzato per informazioni generali e dati enciclopedici.
- PubMed: Fonti di articoli scientifici e medici.
- Repository GitHub: codice sorgente, documentazione e tracker dei problemi.
- Punti vendita: articoli di notizie provenienti da fonti come CNN, BBC e Reuters.
- Database aziendali: dati interni come statistiche di vendita, report sulle prestazioni e database dei clienti.
## Importanza dei data source per un RAG Engine
**Qualità delle risposte**: La qualità e la pertinenza delle risposte generate dipendono dalla qualità delle fonti di dati.
**Copertura tematica**: Un'ampia varietà di fonti di dati consente a RAG Engine di rispondere a una vasta gamma di domande.
**Aggiornamento e manutenzione**: Le fonti di dati devono essere aggiornate regolarmente per riflettere le informazioni più recenti e accurate.
Riassumendo, le fonti di dati per un RAG Engine rappresentano la base su cui si fondano il recupero delle informazioni e la generazione delle risposte. La selezione e la gestione efficiente di queste fonti di dati sono fondamentali per garantire l'accuratezza, la pertinenza e la tempestività delle informazioni fornite agli utent
| corradofacchini |
1,925,544 | Fokus Untuk Tingkatkan Skill Kamu | "Fokus Untuk Tingkatkan Skill" Gimana menurut kalian? ada yg kurang gak hehe😁 Yuk belajar bareng... | 0 | 2024-07-16T13:50:36 | https://dev.to/appardana/fokus-untuk-tingkatkan-skill-kamu-2kg0 | webdev, beginners, programming, tutorial |
"Fokus Untuk Tingkatkan Skill"
Gimana menurut kalian? ada yg kurang gak hehe😁
Yuk belajar bareng serta diskusi dikolom komentar, serta di save biar ga lupa💬😝
📬DM for Projects
🌱Follow : @appardana🎍
💭Stay Young, Be Innovative and Keep Learning
#coding #programmer #code #Content #Tips #Trick #Knwoledge #Management #CSS #React #ReactJS #Frontend #JustifyContent #Javascript #Phyton #C #Web #Skills #IT #Backend #Developer #Roadmap #SelfImprovement #Growth #Aditria #Pardana #AditriaPardana #appardana #iAppTech ⚛️
 | appardana |
1,925,547 | Pergunte ao especialista - Break e goto | Você diz que goto é desestruturado e que break com um rótulo oferece uma alternativa melhor. Mas,... | 0 | 2024-07-16T16:36:20 | https://dev.to/devsjavagirls/pergunte-ao-especialista-break-e-goto-12dm | java | Você diz que goto é desestruturado e que break com um rótulo oferece uma alternativa melhor. Mas, convenhamos, usar break com um rótulo, que pode resultar na remoção de muitas linhas de código e níveis de aninhamento por break, também não desestrutura o código?
Resposta: Uma resposta rápida seria: sim! No entanto, nos casos em que uma mudança drástica no fluxo do programa é necessária, usar break com um rótulo ainda mantém alguma estrutura. A instrução goto não tem nenhuma! | devsjavagirls |
1,925,549 | Continue | Use continue A instrução continue permite forçar a próxima iteração de um laço, ignorando o código... | 0 | 2024-07-16T17:12:49 | https://dev.to/devsjavagirls/continue-i3j | java, continue | **Use continue**
- A instrução continue permite forçar a próxima iteração de um laço, ignorando o código restante dentro do bloco do laço.
- Ela é usada para antecipar uma iteração sem executar o código restante dentro do laço.
- continue é o complemento de break, que permite sair prematuramente de um laço.
Exemplo:
- Este programa usa continue para exibir apenas os números pares entre 0 e 100.
- No programa, apenas números pares são exibidos devido ao uso de continue.
- Um número ímpar faria com que o laço iterasse prematuramente, ignorando a chamada para println().
- Em laços while e do-while, continue faz o controle ir diretamente para a expressão condicional e continua a execução do laço.
- No caso de for, a expressão de iteração do laço é avaliada após o continue, a expressão condicional é verificada, e o laço continua.
- Assim como break, continue pode especificar um rótulo para indicar qual laço externo deve continuar a execução.
Exemplo programa que usa continue com um rótulo:
Saída:
Outer loop pass 1, Inner loop: 1234
Outer loop pass 2, Inner loop: 1234
Outer loop pass 3, Inner loop: 1234
Outer loop pass 4, Inner loop: 1234
Outer loop pass 5, Inner loop: 1234
Outer loop pass 6, Inner loop: 1234
Outer loop pass 7, Inner loop: 1234
Outer loop pass 8, Inner loop: 1234
Outer loop pass 9, Inner loop: 1234
- Quando continue é executado, o controle passa para o laço externo, ignorando o restante do laço interno.
- Bons usos para continue são raros devido à ampla variedade de instruções de laço que Java oferece, que geralmente atendem às necessidades de iteração.
- No entanto, para situações específicas que requerem iteração antecipada, continue oferece uma forma estruturada de alcançar esse comportamento. | devsjavagirls |
1,925,552 | Tente Isto 3-3: Termine o sistema de ajuda Java | Essa versão adiciona a sintaxe de break e continue. Também permite que o usuário solicite a sintaxe... | 0 | 2024-07-16T17:25:59 | https://dev.to/devsjavagirls/tente-isto-3-3-termine-o-sistema-de-ajuda-java-1d04 | java | Essa versão adiciona a sintaxe de break e continue.
Também permite que o usuário solicite a sintaxe de mais de uma instrução. Ela faz isso adicionando um laço externo que é executado até o usuário inserir q como seleção no menu.
1. Copie Help2.java em um novo arquivo chamado Help3.java
2. Inclua todo o código do programa em um laço for infinito. Saia desse laço, usando break, quando uma letra q for inserida. Já que o laço engloba todo o código do programa, sair dele faz o programa terminar.
3. Altere o laço do menu como mostrado aqui:
Observe que agora esse laço inclui as instruções break e continue. Ele também aceita a letra q como opção válida.
4. Expanda a instrução switch para incluir as instruções break e continue, como mostrado abaixo:
| devsjavagirls |
1,925,553 | Comparing Top Offshore Software Development Companies: A Comprehensive Guide | In the current global business situation, offshore software development is a strategic option for... | 0 | 2024-07-16T14:07:31 | https://dev.to/xavier_martinez_a0f958104/comparing-top-offshore-software-development-companies-a-comprehensive-guide-1n55 | fintech, softwaredevelopment, programming, webdev | In the current global business situation, offshore software development is a strategic option for companies looking for affordable and top-notch software solutions. Collaborating with companies from various countries to get their special knowledge, cut expenses and hasten project schedules is part of offshore software development. This guide delves into important traits of offshore software development and offers a thorough comparison of top this firms.
**Essential Traits of Offshore Software Development**
- Expertise in Tech
Offshore software development firms provide access to a large number of professionals skilled in different technologies and programming languages. Their theoretical knowledge ensures the supply of sound and current software solutions.
- Cost Productivity
By outsourcing software development to countries with lower costs, companies can significantly cut their overall expenditure. This cost productivity enables businesses to allocate resources to other crucial areas.
- Time Zone Differences
Time zone differences can be both an advantage and a challenge. While it allows for continuous development cycles, good communication and project management are important to ensure coherent collaboration.
- Quality Control
Offshore software development companies adhere to strict quality control practices to provide top-notch software solutions. Their dedication to quality ensures that the end result will meet or pass customer expectations.
- Safety and Adherence to Regulations
Top offshore software development firms place a high emphasis on security and adherence to global standards. Strong security measures are enforced to safe sensitive information and ensure compliance with regulations.
**Leading Offshore Software System Evolution Companies**
**[Itexus](https://itexus.com/)**
Overview: Itexus is renowned for its bespoke software system evolution and consulting services.
Important Products/Services: Fintech Answers mobile app development AI and Machine learning services.
Unique Selling Points: expertness in fintech personal access active evolution methodological analysis.
Notable Customers and Case Studies: Successfully developed a comprehensive Fintech platform for a leading financial institution.
**[TCS (Tata Consultancy Services)](https://www.tcs.com/)**
Overview: TCS is a global leader in IT services consulting and business answers.
Important Products/Services: IT services, consulting.
Unique Selling Points
Large global presence: Extensive industry experience enables creative solutions.
[**Infosys**](https://www.infosys.com/)
Overview: Infosys provides next-generation digital services and consulting.
Important Products/Services: AI and automation, cloud services, enterprise services.
Unique Selling Points: Strong focus on comprehensive R&D investments.
Notable Customers and Case Studies: Applied AI-driven analytics solutions for a leading retailer.
[**Wipro**](https://www.wipro.com/)
Overview: Wipro is a global leader in IT consulting and business process services.
Important Products/Services: Consulting, cloud computing, cybersecurity solutions.
Unique Selling Points: Emphasis on sustainability, diverse service offerings, strong customer relationships.
Renowned Customers and Case Studies: Delivered comprehensive cybersecurity solutions for an international corporation.
**[Cognizant](https://www.cognizant.com/uk/)**
Overview: Cognizant is a leading IT services provider revolutionizing operational and engineering processes.
Important Products/Services: Digital strategy, IT consulting, IT services.
Unique Selling Points: Customer-centric approach, digital transformation expertise.
Notable Customers and Case Studies: Enabled a major healthcare provider to enhance its digital capabilities.
**[HCL Technologies](https://www.hcltech.com/)**
Overview: HCL Technologies is a next-generation global tech company.
Important Products/Services: IT services, digital and analytics, tech and engineering services.
Unique Selling Points: Strong engineering capabilities, focus on innovation, customer-centric solutions.
Renowned Customers and Case Studies: Developed next-gen tech solutions for a leading automotive company.
**[Capgemini](https://www.capgemini.com/)**
Overview: Capgemini is a global leader in consulting, engineering services, and digital transformation.
Important Products/Services: Consulting services, IT services, managed services.
Unique Selling Points: Comprehensive service portfolio, strong R&D investments.
Notable Customers and Case Studies: Assisted a global retailer in its digital transformation journey.
**[EPAM Systems](https://www.epam.com/)**
Overview: EPAM Systems specializes in product development, digital platform engineering, and design.
Important Products/Services: Software development, tech solutions, digital transformation consulting.
Unique Selling Points: Deep engineering expertise, focus on complex solutions, global delivery model.
Renowned Customers and Case Studies: Engineered a smart digital program for a mass media company.
**[Luxoft](https://www.luxoft.com/)**
Overview: Luxoft is a leading IT service provider offering modern engineering solutions.
Important Products/Services: Digital strategy, IT consulting, software development.
Unique Selling Points: Industry-specific solutions, agile methodologies, strong client relationships.
Notable Customers and Case Studies: Developed cutting-edge automotive software for a leading car manufacturer.
**[Globant](https://www.globant.com/)**
Overview: Globant is a digitally native company focused on reinventing business through innovative tech solutions.
Important Products/Services: Digital transformation, IT services, consulting.
Unique Selling Points: Focus on innovation, extensive industry expertise, agile development.
Renowned Customers and Case Studies: Conducted a mass digital transformation project for a major airline.
**Comparison of developers in different regions**
In different regions there are different prices. You can look through our table and choose the region thats suits you.
**Criteria for Choosing an Offshore Software Development Company**
- Technical Expertise: Evaluate the company's technical skills and experience in relevant technologies and industries.
- Cost Efficiency: Compare pricing models and assess the overall cost-benefit ratio of partnering with the company.
- Communication and Time Zone Management: Ensure effective communication channels and strategies for managing time zone differences.
- Customer Testimonials and Reviews: Review client testimonials and case studies to assess the company's reputation and customer satisfaction.
- Post-Development Support: Consider the availability and quality of post-development support and maintenance services.
- Security and Compliance: Confirm the company's adherence to security protocols and regulatory compliance.
**Trends and Future of Offshore Software Development**
- Advances in Artificial Intelligence and Automation:** The integration of AI and advanced technologies is revolutionizing offshore software development, enhancing productivity and innovation.
- Increased Focus on Cybersecurity:As cybersecurity threats evolve, offshore software development companies are prioritizing robust security measures.
- Adoption of Agile and DevOps Practices: Agile and DevOps practices are becoming standard, promoting faster and more flexible development processes.
- Regulatory and Legal Considerations: Compliance with global regulations and legal standards is essential for maintaining trust and legitimacy.
- Impact of Global Economic Changes: Global economic fluctuations influence the dynamics of offshore software development, affecting business structures and market demand.
**Conclusion**
Choosing the right offshore software development partner is crucial for achieving business success. By considering technical expertise, cost efficiency, communication strategies, and security measures, companies can find a partner that aligns with their goals. The future of offshore software development is promising, with advancements in artificial intelligence, a heightened focus on cybersecurity, and evolving regulatory landscapes driving innovation and growth.
**FAQ**
**- How to choose an offshore software development company?**
Consider factors such as technical expertise, cost efficiency, communication strategies, client reviews, and post-development support.
**- How much does it cost to outsource software development offshore?**
Costs vary based on the project's complexity, the location of the offshore partner, and specific service requirements.
**- Is offshore software development profitable?**
Yes, it can be highly profitable due to cost savings, access to skilled talent, and faster project completion times.
**- What is software offshoring?**
Software offshoring involves delegating software development tasks to companies located in different countries.
**- What is the difference between offshore and nearshore software development?**
Offshore software development refers to outsourcing to distant countries, while nearshore development involves partnering with companies in nearby or neighboring countries.
If you have any questions, feel free to leave them in the comments!
| xavier_martinez_a0f958104 |
1,925,555 | Odoo : Patch a Javascript class | Enhancing Calendar Filters in Odoo with Custom Patching In the realm of enterprise resource planning... | 0 | 2024-07-16T14:08:19 | https://dev.to/jeevanizm/odoo-patch-a-javascript-class-1ne6 | odoo | **Enhancing Calendar Filters in Odoo with Custom Patching**
In the realm of enterprise resource planning (ERP) systems, Odoo stands out with its robust and flexible framework. One of its key strengths is the ability to extend and customize its modules. This article delves into a practical example of customizing the Calendar model in Odoo's JavaScript framework by patching it to introduce enhanced filter functionalities.
**Overview**
The provided code showcases how to patch the CalendarModel in Odoo to add custom filtering capabilities. This customization is achieved by leveraging Odoo's patch utility, which allows developers to augment existing functionalities without altering the core code.
**The Patch Implementation**
The patch extends the loadFilterSection method of the CalendarModel class. This method is responsible for loading filter sections in the calendar view. Let's break down the key components of this patch.
**Importing Necessary Modules**
```
import { CalendarModel } from "@web/views/calendar/calendar_model";
import { patch } from 'web.utils';
import { _t } from 'web.core';
```
Here, we import the CalendarModel class, the patch utility, and the translation function _t from Odoo's core modules. These imports are essential for extending the model and ensuring the patch integrates seamlessly with the existing framework.
**Extending the loadFilterSection Method**
The core of the patch lies in the extension of the loadFilterSection method:
```
patch(CalendarModel.prototype, 'custom_module_calendar_filters', {
async loadFilterSection(fieldName, filterInfo, previousSection) {
// Implementation details...
}
});
```
This snippet uses the patch function to modify the prototype of CalendarModel, effectively injecting our custom logic into the loadFilterSection method.
**Conclusion**
By patching the CalendarModel in Odoo, developers can introduce custom filtering logic that enhances the user experience and meets specific business requirements. This approach exemplifies the flexibility and extensibility of Odoo's framework, enabling tailored solutions without modifying core components. | jeevanizm |
1,925,556 | Laços aninhados | Laços aninhados Os laços aninhados são comuns em programação para resolver uma variedade de... | 0 | 2024-07-16T17:29:53 | https://dev.to/devsjavagirls/lacos-aninhados-5e00 | java, loop | **Laços aninhados**
- Os laços aninhados são comuns em programação para resolver uma variedade de problemas.
- São uma parte essencial da programação, permitindo lidar com estruturas complexas de repetição.
Exemplo para encontrar os fatores dos números de 2 a 100:
Saída:
Factors of 2:
Factors of 3:
Factors of 4: 2
Factors of 5:
Factors of 6: 2 3
Factors of 7:
Factors of 8: 2 4
Factors of 9: 3
Factors of 10: 2 5
Factors of 11:
Factors of 12: 2 3 4 6
Factors of 13:
Factors of 14: 2 7
Factors of 15: 3 5
Factors of 16: 2 4 8
Factors of 17:
Factors of 18: 2 3 6 9
Factors of 19:
Factors of 20: 2 4 5 10
- O laço interno testa sucessivamente todos os números de 2 a i, exibindo aqueles cuja divisão por i é exata.
| devsjavagirls |
1,925,557 | 3 productivity tips for .NET developers | The .NET ecosystem provides a variety of tools, and libraries designed to boost your productivity.... | 0 | 2024-07-16T18:57:35 | https://dev.to/uno-platform/3-productivity-tips-for-net-developers-4mmo | productivity, dotnet, csharp, discuss | The .NET ecosystem provides a variety of tools, and libraries designed to boost your productivity. However, there's invaluable insight to be gained from experienced developers who've honed their skills over the years.
To uncover these tips and tricks, we reached out to some of our seasoned [Uno Platform](https://platform.uno/) developers. They've generously shared practical advice that has boosted their productivity—and can do the same for you
_________________________________________________________________________
**Dan Siegel** - Microsoft MVP
**Years of experience:** 28 years writing code (14 full-time / professionally)
**Dev Environment:** Visual Studio on Windows
**Favorite Library:** [Prism](https://github.com/PrismLibrary/Prism)
**Dan’s Top 3 Productivity Tips:**
1. Step Away: Take breaks away from your computer. Many solutions to complex issues come to mind when you're not actively working on them.
“Honestly, you'd be surprised how many answers/solutions I come up with for things I'm working on when I walk away from the computer and go to lunch. I have even fixed bugs or come up with radical ideas for solving a complex issue while I'm on the dive boat. Software development is a creative process... and many times you need to get away from the computer to let your brain solve problems.
2. Development is a team sport. No matter how good you think you can make something, you’ll make something better collaborating with someone else. Sometimes, the simple exercise of explaining it to someone else can lead to mind-blowing breakthroughs.
3. When you’re working with open-source code, don’t be afraid to look at the code. You’d be amazed at how many things you’ll have a better understanding of just by looking at the code, and how many possibilities that will unlock for you.
Follow Dan on: [GitHub ](https://github.com/dansiegel)& [Twitter](https://x.com/DanJSiegel)
_________________________________________________________________________
**Martin Zikmund** - Microsoft MVP
**Years of experience:** 15 years
**Dev Environment:** Visual Studio on Windows
**Favorite Library:** [Uno Platform](https://github.com/unoplatform/uno) (of course 😁)
**Martin’s Top 3 Productivity Tips:**
1. Invest in workplace: If you have control over your environment, investment into everything you are using while working is a worthwhile investment. This means a quality PC to ensure its performance does not hinder your efficiency; comfortable chair to save your back; standing desk; and ergonomic keyboard and mouse. You are likely spending a lot of time at your PC, so any investments in this regard are worthwhile as they will return to you in both health and time.
2. Use PowerToys: Don’t get me wrong, Windows is a productive OS out of the box, however, you can make it even better by extending it with useful tools. And one of the best comes directly from Microsoft – PowerToys! It is a set of small modules that enhance the OS in ways that will make it hard to imagine your life without after you integrate it into your workflow. I am currently making a series of videos about this on my YouTube channel, if you want to learn more!
3. Know your shortcuts: Nothing can speed up your work as much as knowing keyboard shortcuts of your IDE and other apps you use frequently. Just not having to reach for your mouse and being able to keep your hands on the keyboard saves a surprising amount of time! So, find the list of keyboard shortcuts, print it out, and start learning them as you go. My trick to learn faster is to put your mouse on the side of your non-dominant hand for 30 minutes. Just the fact that the mouse is not where you expect it will make force you to think whether using a keyboard shortcut could be better for that specific task!
**Follow Martin on:** [GitHub](https://github.com/MartinZikmund) & [Twitter](https://x.com/mzikmunddev)
_________________________________________________________________________
**Steve Bilogan** - Microsoft MVP
**Years of experience:** 8.5 years
**Dev Environment:** Visual Studio on Windows / VS Code on macOS
**Favorite Library:** unoplatform/uno.toolkit.ui
**Steve’s Top 3 Productivity Tips:**
1. Take a walk, every couple of hours or whenever needed: walk around the block, let your mind wander, decompress, and come back fresh.
2. Visual Studio CTRL+T Quick Search can search by just the capital letters. Example: Searching for RDP.xaml will resolve properly to RecipeDetailsPage.xaml
3. Open on GitHub - Visual Studio Marketplace Great extension for quickly opening the highlighted lines in the browser from the GitHub repo. Great for needing to quickly grab the link to lines that you are talking about when communicating on Teams
Follow Steve on: [GitHub](https://github.com/kazo0) & https://x.com/BiloganSteve
_________________________________________________________________________
**Youssef Victor** - Microsoft MVP
**Years of experience:** 2 years
**Dev Environment**: Visual Studio on Windows
**Favorite Library:** NodaTime, PolySharp
**Youssef’s Top 3 Productivity Tips:**
1. Master Keyboard Shortcuts: Learn to use Visual Studio's Quick Search (Ctrl+T) to navigate quickly through both your code and IDE features.
2. Leverage Multi-Caret Editing: Use your editor's multi-caret functionality in specific situations where it can significantly speed up your editing process. This allows you to edit multiple locations in your code simultaneously.
3. Consider using grep.app for advanced text searching within your codebase. It offers more powerful search capabilities than the basic search functions within your editor.
Follow Youssef on: [GitHub](https://github.com/Youssef1313) & [Twitter](https://x.com/YoussefV1313)
_________________________________________________________________________
**Nick Randolph** - **Microsoft MVP**
**Years of experience:** 30 years
**Dev Environment:** Windows (Desktop) + VS
**Favorite Library:** Moq for mocking interfaces for testing
**Nicks Top 3 Productivity Tips:**
1. Better team work through focused, and frequent pull requests.
2. Release when features are complete rather than try to hit arbitrary deadlines
3. Don't spin cycles; If you're stuck reach out to someone for help.
Follow Nick on: [GitHub](https://github.com/nickrandolph) & [Twitter](https://x.com/thenickrandolph)
| mtmattei |
1,925,558 | How to build a full stack blog application using NodeJS MongoDB ExpressJS | Welcome to our comprehensive tutorial on building a full-featured full-stack Blog application... | 0 | 2024-07-16T14:09:46 | https://dev.to/codewithsadee/how-to-build-a-full-stack-blog-application-using-nodejs-mongodb-expressjs-4mkj | node, mongodb, webdev, tutorial | {% youtube hogRfOa4yg8 %}
Welcome to our comprehensive tutorial on building a full-featured full-stack Blog application from scratch! In this video, we'll guide you through every step of the process, using a powerful tech stack that includes HTML, CSS, JavaScript, Node.js, MongoDB, and EJS. Whether you're a beginner or an experienced developer looking to expand your skills, this video is for you!
🔧 Technologies Used:
HTML: Structuring the web pages
CSS: Styling the application
JavaScript: Adding dynamic behavior
Node.js: Server-side scripting
Express.js: Building the server and handling routes
MongoDB: Database management
EJS: Templating engine for dynamic content
📁 Resources:
- Starter file: https://drive.google.com/file/d/1co4JNUusDpXVnP7J1TqiCYIY0RROj5EY/view?usp=drive_link
- Source code: https://www.patreon.com/posts/inktale-blog-108242178?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link
- NodeJS: https://nodejs.org/en
- ExpressJS: https://expressjs.com/
- MongoDB: https://www.mongodb.com/
- EJS: https://ejs.co/
🔗 Chapters:
0:00 - Intro
2:48 - Project overview
16:45 - Project initial
20:44 - Register
2:09:48 - Login
2:24:28 - Setup user session
2:32:31 - Home
3:25:42 - Create blog
4:24:17 - Cloudinary setup
4:30:41 - Create blog
4:49:00 - Render blog in home
5:38:33 - Blog detail
6:12:41 - Render content in markdown
6:18:10 - Code hightlighter
6:20:30 - Blog detail
6:38:00 - Implement blog reaction
7:04:54 - Implement add to reading list
7:37:05 - Reading list
7:46:15 - Update blog
8:16:41 - Profile
8:38:14 - 404 page
8:43:29 - Dashboard
9:15:16 - Delete blog
9:34:39 - Blog visit count
9:46:05 - Settings / Update user info
11:18:01 - Responsive
11:36:23 - Test all features | codewithsadee |
1,925,559 | What Are SOLID Principles? Simplifying Software Architecture | Ref: SOLID: The First 5 Principles of Object Oriented Design Solid Principles of OOPS... | 28,081 | 2024-07-16T14:10:41 | https://vampirepapi.hashnode.dev/what-are-solid-principles-simplifying-software-architecture | solidprinciples, systemdesign, architecture, designpatterns | [Ref: SOLID: The First 5 Principles of Object Oriented Design](https://www.digitalocean.com/community/conceptual-articles/s-o-l-i-d-the-first-five-principles-of-object-oriented-design#interface-segregation-principle)
## Solid Principles of OOPS -
| S | Single Responsibility Principle |
| ------------ | ------------ |
| O | Open / Close Principle |
| L | Liskov Substituion Principle |
| I | Interface Segregation Principle|
| D | Dependency Inversion Principle |
**Advantages of following these Principles :**
> Help us to write better code:
1. Avoid Duplicate Code
2. Easy to maintain
3. Easy to Understand
4. Flexible software
5. Reduce Complexity
## S - Single Responsiblity Principle
> A Class should have only 1 reason to change.
Here we have Marker Entity and it has property - name, color, year, price.
And this is Invoice class with methods - calculateTotalPrice, printInvoice, saveToDB.
> Now suppose if we change the printing logic, then we have to change the Invoice class.
**Reason 1**
> Now, if we have to add a discount or taxes to the price then we have to change the logic of calculateTotalPrice method and this will result in changing the Invoice class.
**Reason 2**
> And if we have to save the invoice to the database then we have to change the logic of saveToDB method and this will result in changing the Invoice class.
**Reason 3**
So from the above example, we can say that the Invoice class has multiple reasons to change and this is not a good practice.
But Single Responsibility Principle says that a class should have only 1 reason to change. So, we should have separate classes for each responsibility.
> This is for calculating the total price of the invoice.
> This is for saving the invoice to the database.
> This is for printing the invoice.
**Following the Single Responsibility Principle -**
1. Easy to maintain
2. Easy to Understand
## O - Open / Close Principle
> A class should be open for extension but closed for modification.
Suppose we have **InvoiceDao** class and it has a method **saveToDB** which saves the invoice to the database, and this class is live and getting traffic from the users.
And suppose a requirement came to save the invoice to the file too -
and we added a method **saveToFile** to the **InvoiceDao** class, so we are changing the existing tested class and this is not a good practice it may result in breaking the existing functionality.
**Open / Close Principle says that a class should be open for extension but closed for modification. So, we should not modify the existing class, instead, we should create a new class for the new requirement or we can create an interface and implement it in the new class.**
> This is the interface for saving the invoice.
Here we created the InvoiceDao interface and implemented it in the **DatabaseInvoiceDao** class and **FileInvoiceDao** class.
## L - Liskov Substitution Principle
> Objects of a superclass shall be replaceable with objects of its subclasses without affecting the functionality of the program.
> Means, If Class B is subtype of Class A, then we should be able to replace object of A with B without breaking the behaviour of the program.
> Subclass should extend the capability of the parent class, not narrow it down.
Suppose we have Bike class and it has a method **turnOnEngine** and **accelerate**.
- now we created the object of bike, ie **MotorCycle** and it has a method **turnOnEngine** and **accelerate**, turning on the engine make the engine on and accelerating the bike.
- now we created another class, ie **Bicycle** and it has a method **accelerate** and **turnOnEngine**. But turning on the engine throws Assertion Error - **"there is no engine"**, engine does not make any sense in the bicycle class.
>Now understand suppose till then bike class was receving the object of MotorCycle and it was working fine, but now we are passing the object of Bicycle class, then it will throw an error.
So, here we changed the behaviour of the program by replacing the object of the superclass with the object of the subclass, which inverts the Liskov Substitution Principle.
## Eg: 2
Now suppose we have a class **Rectangle** and it has a method **setHeight** and **setWidth**.
And we have a class **Square** which extends the **Rectangle** class and it has a method **setSide**.
Now, if we create an object of **Rectangle** class and set the height and width, then the area will be height * width.
And if we create an object of **Square** class and set the side, then the area will be side * side.
So, the area of the **Square** class is different from the **Rectangle** class.
**Liskov Substitution Principle says that objects of a superclass shall be replaceable with objects of its subclasses without affecting the functionality of the program.**
> So, we should not create a subclass that narrows down the functionality of the parent class.
## I - Interface Segregation Principle
> Interfaces should be such that the client should not be forced to implement unnecessary functions
> A client should never be forced to implement an interface that it does not use.
Here we have interface RestaurantEmployee and it has methods - washDishes, serveCustomers, cookFood.
Now Class Waiter implements the RestaurantEmployee interface and it have to implement all the methods of the interface. ie washDishes, serveCustomers, cookFood.
But, Waiter does not cook food, so it should not implement the cookFood method.
here the client is Waiter and it is forced to implement the cookFood method which is unnecessary.
> So, we should break down the interface into parts, so that the client should not be forced to implement unnecessary functions.
> Now WaiterInterface is trimmed down to only the methods that are necessary for the Waiter class.
## Eg:2
According to the interface segregation principle, you should
break down “fat” interfaces into more granular and specific
ones. Clients should implement only those methods that they
really need. Otherwise, a change to a “fat” interface would
break even clients that don’t use the changed methods.
Class inheritance lets a class have just one superclass, but it doesn’t limit the number of interfaces that the class can implement at the same time. Hence, there’s no need to cram tons of unrelated methods to a single interface. Break it down into several more refined interfaces—you can implement them all in a single class if needed. However, some classes may be fine with implementing just one of them.
>This is bloated interface -
>Better way is break down the interface into parts.
## D - Dependency Inversion Principle
> Class should depend on interfaces rather than concrete classes.
> High-level classes shouldn’t depend on low-level classes. Both should depend on abstractions. Abstractions shouldn’t depend on details. Details should depend on abstractions.
Usually when designing software, you can make a distinction
between two levels of classes.
- Low-level classes implement basic operations such as working
with a disk, transferring data over a network, connecting to a
database, etc.
- High-level classes contain complex business logic that directs
low-level classes to do something.
----
Suppose we have two interfaces -
>Keyboard <Interface>
>Mouse <Interface>
And we have a class Macbook -
here Macbook class is dependent on the concrete classes of Keyboard and Mouse, ie WiredKeyboard() and WiredMouse().
>But according to the Dependency Inversion Principle, a class should depend on interfaces rather than concrete classes.
So, what we will do is we will create an interface for Keyboard and Mouse and pass these as constructor injection to the Macbook class.
This will ensure that the Macbook class is not dependent on the concrete classes of Keyboard and Mouse, instead, it is dependent on the interfaces of Keyboard and Mouse.
----
This is SOLID Prinicples of OOPS.
Using these principles we can -
1. Avoid Duplicate Code
2. Easy to maintain
3. Easy to Understand
4. Flexible software
5. Reduce Complexity
---
$$
ThanksForReadingIfYouLikedItPleaseSubscribeMyNewsLetter!
$$
| vampirepapi |
1,925,565 | Repopack: A Node.js Tool for Seamless Coding with Claude AI | TL;DR I created Repopack, a Node.js tool that combines your project files into a single... | 0 | 2024-07-16T14:17:46 | https://dev.to/yamadashy/repopack-a-simple-nodejs-tool-for-combining-repository-files-4o0d | node, ai, productivity, coding | ## TL;DR
I created Repopack, a Node.js tool that combines your project files into a single document. It was originally made to help me work with AI coding assistants like Claude, but it might be useful for other purposes too. It handles file encoding, ignores binary files, and respects .gitignore patterns.
I had a positive experience coding with Claude, which inspired me to create this Node.js command. It aims to simplify the process of working with AI on larger codebases. Here's how it works:
Running the following command in the root of your repository will create a file called `repopack-output.txt`:
```bash
$ npx repopack
```
You can then send this file to an AI assistant with a prompt like:
```txt
This file contains all the files in the repository combined into one. I want to refactor the code, so please review it first.
```
The AI can then understand the overall content and potentially assist with tasks like refactoring.
When you propose specific changes, the AI might be able to generate code accordingly. With features like Claude's Artifacts, you could potentially output multiple files, allowing for the generation of multiple interdependent pieces of code.
## Features
This tool combines files under a specified folder into a single file.
https://github.com/yamadashy/repopack
While it handles details like ignoring `.gitignore` targets and binary files, and includes phrases to help AI understand, what it does is simple: it outputs a file like this:
```text
================================================================
REPOPACK OUTPUT FILE
================================================================
// Phrases to help AI understand
================
File: src/index.js
================
// File contents
================
File: src/utils.js
================
// File contents
```
Claude 3.5 Sonnet can understand this simple structure well, so it can easily handle refactoring across multiple files.
While the context length that AI services can process is limited, this should be sufficient for small-scale projects. (Please don't use it for work code!)
You can adjust ignore targets in the configuration file. Please check the GitHub repository for more details.
## Background
I've been experimenting with Claude Pro recently, using the Projects feature to load multiple files and have it modify code. It generates code with about 60-95% accuracy, which I find quite efficient when used as a reference for rewriting code.
However, the Projects feature doesn't allow uploading folders or zip files directly. I considered using Cursor, but hesitated due to its pay-as-you-go API.
Then I saw this article and realized that Claude could understand even when everything was in a single file, which led me to create and publish this tool.
https://qiita.com/kunishou/items/ed097b46cd78030e0b29
## About the Development
While it's not doing anything too complex, I hope it can be of some use 🙏
### Output File Content
The output file begins with text explaining how to handle the file.
Initially, I used a simple structure with just file paths and contents, but Claude sometimes had trouble understanding it. By adding "File Purpose," "Format," "Handling Method," and "Other Notes" at the beginning, Claude could understand more accurately.
### Token Optimization
For file separators, I referred to ChatGPT's Tokenizer and used 16 and 64 `=` characters, which count as 1 token.
https://platform.openai.com/tokenizer
The token count might be different for ChatGPT-4 or Claude, but I aimed for something similar.
### CLI Implementation
I used the `commander` library to create the command-line tool. I could have used yargs, but I like commander's simple syntax and automatic help generation.
To get the tool's version, I read from package.json. To ensure compatibility with older Node.js versions, I use fs to read it directly instead of import. Also, since `__dirname` isn't available in ES modules and `import.meta.dirname` isn't supported in some versions, I use a slightly tricky method:
```javascript
import * as url from "url";
const dirName = url.fileURLToPath(new URL(".", import.meta.url));
```
### Publishing as an npm Package
To easily publish new versions to npm, I added these scripts to package.json:
```json:package.json
"npm-publish": "npm run lint && npm run test-coverage && npm run build && npm publish",
"npm-release-patch": "npm version patch && npm run npm-publish",
"npm-release-minor": "npm version minor && npm run npm-publish",
"npm-release-prerelease": "npm version prerelease && npm run npm-publish"
```
The `npm version <major|minor|patch>` command is surprisingly handy.
### File Encoding
Since this tool shouldn't read binary files, I use [is-binary-path](https://www.npmjs.com/package/is-binary-path) to ignore binaries, and [jschardet](https://www.npmjs.com/package/jschardet) and [iconv-lite](https://www.npmjs.com/package/iconv-lite) to handle encoding properly.
### File Ignoring
For ignoring specific files, the [ignore](https://www.npmjs.com/package/ignore) package is useful. It makes it easy to implement .gitignore-like pattern filtering:
```js
function createIgnoreFilter(patterns: string[]): (path: string) => boolean {
const ig = ignore.add(patterns);
return (filePath: string) => !ig.ignores(filePath);
}
```
## Conclusion
This is a simple tool that I created because I needed it. While Claude will likely implement folder and zip upload features if we wait, I believe this tool can be used universally with the growing number of AI generation services.
I'd be happy to receive your feedback if you try it out!
| yamadashy |
1,925,560 | Functional Programming Meets TDD: A Match Made in Code Heaven 🚀 | This is the story of how these two paradigms can be combined for the ultimate coding experience. ? ... | 0 | 2024-07-16T14:12:30 | https://dev.to/codejourney/functional-programming-meets-tdd-a-match-made-in-code-heaven-49j2 | This is the story of how these two paradigms can be combined for the ultimate coding experience. ?
## Fundamentals of functional programming
Functional programming simply means writing sensible code. Here are the most important principles:
### Immutability ?
Once a variable is set, it does not change. Instead of modifying data, you create new data structures.
**Example:**
```javascript
// Immutable function
const add = (x, y) => x + y;
// Test case
test('add function should return the sum of two numbers', () => {
expect(add(2, 3)).toBe(5);
});
```
### Pure Functions ?
A pure function always returns the same result with the same inputs and causes no side effects.
**Example:**
```javascript
// Pure function
const multiplication = (x, y) => x * y;
// Test case
test('the multiplication function should return the product of two numbers', () => {
expect(multiply(4, 5)).toBe(20);
});
```
### Higher-order functions ?
These functions take other functions as arguments or return them as results, allowing for more flexible and reusable code.
**Example:**
```javascript
// Higher order function
const applyFunction = (fn, x, y) => fn(x, y);
// Test case
test('applyFunction should use the given function in arguments', () => {
const add = (x, y) => x + y;
expect(applyFunction(add, 2, 3)).toBe(5);
});
```
## The Perfect Pair: FP and TDD
When FP meets TDD, magic happens. Here's how they complement each other:
### Embrace Immutability ?
Immutability ensures data consistency and tests are more reliable because data doesn't change unexpectedly.
**Example:**
```javascript
// Immutable function
const add = (x, y) => x + y;
// Test case
test('add function should return the sum of two numbers', () => {
expect(add(2, 3)).toBe(5);
});
```
### Use pure functions ?
Pure functions are predictable and easy to test because they don't depend on or modify external state.
**Example:**
```javascript
// Pure function
const multiplication = (x, y) => x * y;
// Test case
test('the multiplication function should return the product of two numbers', () => {
expect(multiply(4, 5)).toBe(20);
});
```
### Use higher-order functions ?
Higher-order functions allow you to write abstract and reusable test cases, improving code flexibility.
**Example:**
```javascript
// Higher order function
const applyFunction = (fn, x, y) => fn(x, y);
// Test case
test('applyFunction should use the given function in arguments', () => {
const add = (x, y) => x + y;
expect(applyFunction(add, 2, 3)).toBe(5);
});
// Simple functions
const increment = x => x + 1;
const double = x => x * 2;
// Function composition
const incrementAndDouble = x => double(increment(x));
// Test case
test('incrementAndDouble should increase and then double', () => {
expect(incrementAndDouble(3)).toBe(8);
});
```
### Write declarative code ?
Declarative code focuses on what to do, not how to do it, which makes tests clearer and more concise.
**Example:**
```javascript
// Declarative code using map
const numbers = [1, 2, 3, 4];
const doubledNumbers = numbers.map(x => x * 2);
// Test case
test('doubledNumbers should contain doubled values', () => {
expect(doubledNumbers).toEqual([2, 4, 6, 8]);
});
```
## Advantages ?
1. **Predictability:** FP's pure functions and immutability make behavior predictable, simplifying testing.
2. **Modularity:** FP breaks problems into smaller reusable parts, equivalent to unit testing in TDD.
3. **Readability:** Declarative code is easier to understand and test.
4. **Sustainability:** TDD ensures that code changes do not introduce bugs, while FP's modular approach simplifies updates.
## Andddd....... ?
Combining functional programming with test-driven development can dramatically improve your coding experience. By integrating the immutable principles of FP, pure functions, high-order functions, and declarative code into the test-first approach of TDD, you create a code base that is clean, maintainable, and resilient. It's a match made in coding heaven! ? | codejourney | |
1,925,561 | What is file-level restore (FLR)? | Understanding File-Level Restore (FLR): Simple Explanation by Examples | Backup Tips | File-Level Restore (FLR) is a feature that lets you restore specific files or folders from a backup... | 0 | 2024-07-16T14:13:44 | https://dev.to/ddeveloperr/understanding-file-level-restore-flr-simple-explanation-by-examples-backup-tips-2j9p | flr, backup, restore |
File-Level Restore (FLR) is a feature that lets you restore specific files or folders from a backup without having to restore the entire system. This can save a lot of time and make the recovery process much easier.
## What is File-Level Restore (FLR)?
FLR allows you to recover just the files you need, like a single document or folder, instead of restoring everything from a backup. It's a bit like having a magic rewind button for your files.
### Why is FLR Important?
- **Precision**: Only recover the files you need.
- **Speed**: Quickly get back important files without waiting for a full system restore.
- **Convenience**: Restore files to their original location or somewhere else if needed.
- **Control**: Recover older versions of files that might have been changed or deleted.
## Simple Examples of FLR
### Example 1: Accidental Deletion
**Scenario**: You accidentally delete a report you’ve been working on.
**Solution**: Using FLR, you can go into your backup, find the report, and restore just that file back to your computer.
### Example 2: File Corruption
**Scenario**: A project file gets corrupted and won’t open.
**Solution**: With FLR, you can find an uncorrupted version of the file from your backup and restore it, so you can continue working without losing time.
### Example 3: Ransomware Attack
**Scenario**: A virus encrypts your files, making them unusable.
**Solution**: FLR allows you to restore only the files affected by the virus from a backup taken before the attack, so you don't have to restore everything.
### Example 4: Recovering Older Versions
**Scenario**: You save an important document by mistake.
**Solution**: FLR lets you go back to a previous version of the document from your backup and restore it, so you can recover the information you lost.
## HYCU’s Support for File-Level Restore
HYCU, a company that provides backup and recovery solutions, supports File-Level Restore. This means with HYCU, you can easily restore specific files or folders from your backups.
### Want to Know More?
To learn more about how HYCU can help with your data recovery needs, visit the [HYCU Contact Page](https://www.hycu.com/contact/) and talk to their experts. They can help you set up a backup and recovery system that works for your business.
---
Best,
Kemal Cholovich | ddeveloperr |
1,925,562 | Teste do Capítulo 3 | (respostas na página 607 - 627 do pdf) Escreva um programa que leia caracteres do teclado até um... | 0 | 2024-07-16T17:30:08 | https://dev.to/devsjavagirls/teste-do-capitulo-3-59e0 | java, testecap3 | (respostas na página 607 - 627 do pdf)
1. Escreva um programa que leia caracteres do teclado até um ponto ser recebido. Faça-o contar o número de espaços. Relate o total no fim do programa.
2. Mostre a forma geral da escada if-else-if.
3. Dado o código abaixo, a que if o último else está associado?
4. Mostre a instrução for de um laço que conte de 1000 a 0 em intervalos de -2.
5. O fragmento a seguir é válido?
6. Explique o que break faz. Certifique-se de explicar suas duas formas.
7. No fragmento a seguir, após a instrução break ser executada, o que é exibido?
8- O que o fragmento abaixo exibe?
9- Nem sempre a expressão de iteração de um laço for necessita alterar a variável de controle de laço segundo um valor fixo. Em vez disso, a variável de controle pode mudar de alguma maneira arbitrária. Usando esse conceito, escreva um programa que use um laço for para gerar e exibir a progressão 1, 2, 4, 8, 16, 32,
e assim por diante.
10- As letras minúsculas ASCII ficam separadas das maiúsculas por um intervalo igual a 32. Logo, para converter uma letra minúscula em maiúscula, temos de subtrair 32 dela. Use essa informação para escrever um programa que leia caracteres do teclado. Ele deve converter todas as letras minúsculas em maiúsculas e todas as letras maiúsculas em minúsculas, exibindo o resultado. Não faça
alterações em nenhum outro caractere. O programa será encerrado quando o usuário inserir um ponto. No fim, ele deve exibir quantas alterações ocorreram na caixa das letras.
11- O que é um laço infinito?
12- No uso de break com um rótulo, este deve estar em um bloco que contenha break? | devsjavagirls |
1,925,563 | Designing Responsive Modals and User Notifications for Nuxt.js E-commerce Platform | Check this post in my web notes! In our previous article, we finished creating our e-commerce... | 27,540 | 2024-07-16T14:15:18 | https://webcraft-notes.com/blog/designing-responsive-modals-and-user-notifications-for | nuxt, vue, javascript, tutorial |
> Check [this post](https://webcraft-notes.com/blog/designing-responsive-modals-and-user-notifications-for) in [my web notes](https://webcraft-notes.com/blog/)!
In our [previous article](https://webcraft-notes.com/blog/constructing-key-pages-for-your-ecommerce-site), we finished creating our e-commerce store main pages, and now it's time to move further and add some dynamic elements like modals and notifications. First of all modal window, will be useful for product quick view, product management, etc., and the notifications role is crucial because it is the best way to communicate with the user, starting from welcome messages and finishing with sale messages. Yes, as you got from the intro and title our today's article will consist of the following:
1. Creating Custom Modals in Nuxt.js
2. Configuring Notification Messages in our E-commerce store
Now that we know how important modals and alerts are, let's study how to integrate them into our Nuxt.js e-commerce application and get into the implementation specifics.
## 1. Creating Custom Modals in Nuxt.js
We need to clarify that we want to create a reusable modal window so that it can be used in many ways and show different data. For that, we will create a main Modal component with modal-specific styles and items that could be rendered inside our modal component.
First things first, create a Modal.vue file inside the "ui" folder with a container that should blur the background and a modal div inside that will contain dynamically rendered items. Also, we will import the "xmark" icon and make it a button that will close our Modal window.
```
<template>
<div class="container">
<div class="modal">
<div class="modal__close">
<button class="modal__close--btn" @click="closeModal">
<NuxtIcon name="xmark-solid" class="modal__close--icon"/>
</button>
</div>
<div class="modal__content">
</div>
</div>
</div>
</template>
```
Inside our base store, we will add two new variables "modalStatus" with a false value and "modalType" as a String, and add simple actions that will modify these values.
```
aSetModalStatus(status) {
this.modalStatus = status;
},
aSetModalType(type) {
this.modalType = type;
},
```
The status variable will control modal render behavior and type will update different modal types.
Now, when we have a modal control system we can add our modal component to the default layout. Do not forget to import our base store.
```
<template>
<div class="layout">
<AppHeader />
<slot />
</div>
<AppFooter />
<Modal v-if="baseStore.gModalStatus"/>
</template>
```
Great, our reusable modal component is ready, now if we want to show the modal we simply need to update the modalStatus value inside the base store.
Also, you can add whatever styles you want to the modal component, but I recommend you to use "Glassmorphism" and it will look stylish.
```
.container {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
z-index: 100;
display: flex;
justify-content: center;
align-items: center;
.modal {
min-width: 300px;
min-height: 300px;
background: rgba( 255, 255, 255, 0.9 );
box-shadow: 0 8px 32px 0 rgba( 31, 38, 135, 0.37 );
backdrop-filter: blur( 13px );
-webkit-backdrop-filter: blur( 13px );
border-radius: 10px;
border: 1px solid rgba( 255, 255, 255, 0.18 );
padding: 24px;
display: flex;
flex-direction: column;
&__close {
display: flex;
justify-content: flex-end;
width: 100%;
&--btn {
border: none;
background-color: transparent;
cursor: pointer;
outline: none;
display: flex;
align-items: center;
}
&--icon {
color: #6c757d;
font-size: 20px;
}
}
}
}
```
We did a great job over here, but I'm offering you to continue and create the first component that will use our modal - "Product Preview", which will be available after the preview button clicks on any product card. Let's create a new Vue file inside the "common" folder and add some HTML/CSS elements:
```
<template>
<div class="product-preview">
<div class="product-preview__left">
<div class="product-preview__left--image">
<img src="../../assets/images/main/trend.jpg" alt="product image">
</div>
</div>
<div class="product-preview__right">
<p class="product-preview__right--name">Product Name</p>
<p class="product-preview__right--price">$100</p>
<p class="product-preview__right--text">Lorem ipsum dolor sit amet consectetur adipisicing elit. Consequatur, ipsam! Lorem ipsum dolor sit amet consectetur adipisicing elit. Consequatur, ipsam! Lorem ipsum dolor sit amet consectetur adipisicing elit. Consequatur, ipsam!</p>
<button class="product-preview__right--btn">Add to cart</button>
<button class="product-preview__right--btn2">
<NuxtIcon name="heart-regular" size="20" class="overlay__list--icon"/>
Add to wishlist
</button>
</div>
</div>
</template>
```
Then import this component into Modal.vue file and insert it into the content div.
```
<div class="modal__content">
<ProductPreview v-if="baseStore.modalType === 'product-preview'" />
</div>
```
Now, we only need to add a function like "showPreview" to our card so that after the user clicks, that function will set the modal type to "product-preview" and the modal status to "true". That's it, we have a reusable modal and product preview functionality.
Okay, we need to move on and add alert messages to our Nuxt.js project.
## 2. Configuring Notification Messages in our E-commerce store
Okay, we can add something like a modal change its styles, and call it alerts, sounds like a simple and fast solution. But what if there will be triggered two or more alerts at the same time (for example "welcome" message and "your wishlist is not empty" message)? To solve this problem we will create an alert container that will be expanding as much as the number of incoming messages.
First of all, we will add alert settings to our store, similar to what we did with the modal part. Add the "notificationsList" array to the state part, and add notification actions that will push and remove the notification from the list. Each notification has a unique ID and shows status, type, message, and delay (amount of time that our message will be visible).
```
aSetNotification(payload) {
const notification = {
id: uuidv4(),
show: true,
type: payload.type,
msg: payload.msg,
delay: payload.delay ? payload.delay : 7000,
}
this.notificationsList.push(notification);
},
aRemoveNotification(id) {
const indexToRemove = this.notificationsList.findIndex((element) => element.id === id);
if (indexToRemove !== -1) {
this.notificationsList.splice(indexToRemove, 1);
}
},
```
Next move, we need to create a "Notification" component that will render a message itself, depending on the message type. Also, we need to use delay time and remove messages automatically.
```
<template>
<div class="animate__animated animate__backInRight"
v-if="notification.show">
<div class="alert alert-success" v-if="notification.type === 'success'">
<div class="icon__wrapper">
<nuxt-icon name="exclamation-solid" />
</div>
<p class="notification__text">{{ notification.msg }}</p>
<span class="close"
@click.prevent="baseStore.aRemoveNotification(notification.id)">
×
</span>
</div>
<div class="alert alert-error" v-if="notification.type === 'error'">
<div class="icon__wrapper">
<nuxt-icon name="exclamation-solid" />
</div>
<p class="notification__text">{{ notification.msg }}</p>
<span class="close"
@click.prevent="baseStore.aRemoveNotification(notification.id)">
×
</span>
</div>
</div>
</template>
<script>
import { useBaseStore } from '@/store/base';
export default {
name: 'MainNotification',
props: {
notification: {
type: Object,
required: true
}
},
computed: {
baseStore() {
return useBaseStore();
}
},
mounted() {
setTimeout(() => {
this.baseStore.aRemoveNotification(this.notification.id);
}, this.notification.delay)
}
}
</script>
```
You can style your messages in any way you want, I'll as usual use "Glassmorphism" and add some color.
```
.alert-success {
background: rgba( 114, 255, 136, 0.45 );
box-shadow: 0 8px 32px 0 rgba( 31, 38, 135, 0.37 );
backdrop-filter: blur( 10px );
-webkit-backdrop-filter: blur( 10px );
border-radius: 10px;
border: 1px solid rgba( 255, 255, 255, 0.18 );
}
```
And final touch, we need to create our messages container and add that container into the app.vue file.
The notification container will simply render an array of our list that is stored in the base file.
```
<template>
<div class="notification__container">
<MainNotification v-for="(notification, index) of baseStore.gNotificationsList"
:key="index"
:notification="notification" />
</div>
</template>
<script>
import { useBaseStore } from '@/store/base';
import MainNotification from './MainNotification.vue';
export default {
name: 'NotificationContainer',
components: {
MainNotification,
},
computed: {
baseStore() {
return useBaseStore();
}
}
};
</script>
```
Do not forget to add "Notification Container" to the main app.vue file.
```
<template>
<div>
<NuxtLayout>
<NuxtPage />
</NuxtLayout>
</div>
<NotificationContainer />
</template>
```
That's it, we can restart our dev server and trigger notification messages a few times, just to check the result.
With the integration of modals and notifications, our Nuxt.js e-commerce application has become more dynamic, interactive, and user-friendly. These elements contribute to an enhanced shopping experience, enabling our customers to preview products and stay informed throughout their journey.
As we continue to build and improve our e-commerce platform, we can further expand the functionality of modals and notifications, tailoring them to specific use cases and ensuring a seamless and engaging experience for our users.
If you would need a source code for this tutorial you can get it [here](https://buymeacoffee.com/webcraft.notes/e/257947). | webcraft-notes |
1,925,564 | Sample post | This post is to test the dashboard page. | 0 | 2024-07-16T14:16:59 | https://dev.to/cricket_vidz_8d33699982c3/sample-post-2406 | timepass | **This post is to test the dashboard page.** | cricket_vidz_8d33699982c3 |
1,925,566 | IUC TECH | IUC TECH WEBSITE DESIGN DOMAIN MAINTENANCE. SOFTWARE APPLICATION. IUC Technology revolutionizes the... | 0 | 2024-07-16T14:18:12 | https://dev.to/yojif59112/iuc-tech-6ll | [IUC TECH](https://www.google.com/url?q=https://www.iuctech.com/)
[WEBSITE DESIGN](https://www.google.com/url?q=https://www.iuctech.com/service.php)
[DOMAIN MAINTENANCE](https://www.google.com/url?q=https://www.iuctech.com/service.php).
[SOFTWARE APPLICATION](https://www.google.com/url?q=https://www.iuctech.com/service.php).
[IUC Technology](https://www.google.com/url?q=https://www.iuctech.com/) revolutionizes the way we interact with data, offering seamless integration, unparalleled security, and unparalleled performance, empowering businesses to thrive in the digital age."
| yojif59112 | |
1,925,567 | Try the Integration Challenge – run our Android SDK in 10 minutes or less | Did you visit Droidcon 2024 in Berlin? If so, you may have noticed our Integration Challenge, for... | 0 | 2024-07-17T14:21:11 | https://scanbot.io/techblog/integrating-the-android-sdk-in-10-minutes-or-less/ | android, kotlin, mobile | Did you visit Droidcon 2024 in Berlin? If so, you may have noticed our Integration Challenge, for which we asked developers to integrate our Barcode Scanner SDK for Android in less than 10 minutes.
40 people tried to do so. All of them managed it in less than 6 minutes, with the best time clocking in at incredible 1:02! 🤯
Can you top that? Let’s find out – we’ve added the instructions to our [Quick Start Guide](https://docs.scanbot.io/barcode-scanner-sdk/android/quick-start/)!
⏱️ If you want to see how fast you can do it, start your clock when you scroll down.
Let’s go through the steps one by one.
## Step 1: Clone the template app (or create a project from scratch)
We’ve prepared a template project so you won’t waste any time on building a UI. You can clone or download it from our [GitHub repository](https://github.com/doo/scanbot-barcode-sdk-integration-challenge).
Open the project in Android Studio and you’re good to go.
## Step 2: Add the Scanbot SDK dependencies
The Scanbot SDK for Android is distributed through our private Maven repository server (`nexus.scanbot.io`), which needs to be specified in the `settings.gradle.kts` file in the root folder of your project:
```
// settings.gradle.kts in the root of the project:
dependencyResolutionManagement {
repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
repositories {
google()
mavenCentral()
// Add Scanbot SDK maven repositories here:
maven(url = "https://nexus.scanbot.io/nexus/content/repositories/releases/")
maven(url = "https://nexus.scanbot.io/nexus/content/repositories/snapshots/")
}
}
```
Afterward, the dependencies can be added in the `dependencies` section of your Android application project configuration, usually in the `app/build.gradle.kts` file:
```
// app/build.gradle.kts (dependencies section):
implementation("io.scanbot:scanbot-barcode-scanner-sdk:5.2.0")
implementation("io.scanbot:rtu-ui-v2-barcode:5.2.0")
```
To check out the latest version of the Scanbot SDK, please always refer to the SDK’s [changelog](https://docs.scanbot.io/barcode-scanner-sdk/android/changelog/).
For more details on the dependencies, please refer to our [detailed installation](https://docs.scanbot.io/barcode-scanner-sdk/android/detailed-setup-guide/installation/) guide.
## Step 3: Add the camera permission
The Scanbot Barcode Scanner SDK needs access to the device camera so it can scan from a live camera stream. Therefore, you have to define the camera permission in the `AndroidManifest.xml` file:
```
<!-- AndroidManifest.xml: -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android" ...>
<!-- Add Camera permission here: -->
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<application ...>
```
Note how we also added the `uses-feature` tag for better recognition of your app on the Google Play Store ([see the Android documentation](https://developer.android.com/guide/topics/manifest/uses-feature-element)).
Our Ready-to-Use UI Components handle the [runtime permissions](https://developer.android.com/training/permissions/requesting) automatically, so there is no need to add anything else in the code.
## Step 4: Initialize the SDK
Usually, we recommend initializing the SDK in the Application class of your app (see our [detailed setup](https://docs.scanbot.io/barcode-scanner-sdk/android/detailed-setup-guide/sdk-initialization/) page). However, in this Quick Start guide, we’ll do it in an `Activity` class.
First, make sure to add the following imports to the top of the file (e.g., `MainActivity.kt`):
```
// Add the following imports in your Activity (for example, MainActivity.kt):
import android.widget.Toast
import androidx.activity.result.ActivityResultLauncher
import io.scanbot.sdk.barcode_scanner.ScanbotBarcodeScannerSDKInitializer
import io.scanbot.sdk.ui_v2.barcode.BarcodeScannerActivity
import io.scanbot.sdk.ui_v2.barcode.configuration.BarcodeScannerConfiguration
import io.scanbot.sdk.ui_v2.common.activity.registerForActivityResultOk
```
To initialize the SDK, simply use the `ScanbotBarcodeScannerSDKInitializer` class in the `onCreate` method of your `Activity`:
```
// Adapt your Activity's onCreate method as follows:
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
...
// Initialize the SDK here:
ScanbotBarcodeScannerSDKInitializer()
// optional: uncomment the next line if you have a license key
// .license(this.application, LICENSE_KEY)
.initialize(this.application)
}
```
> 💡 You can use the Scanbot Barcode SDK for quick testing or evaluation purposes even without a license key. However, the SDK will only work for 60 seconds per app session and may not be used for production purposes. Want to scan longer than 60 seconds? Get your free trial license key [here](https://scanbot.io/trial/).
## Step 5: Start the Barcode Scanner and process the result
You only need a few lines of code to integrate the Scanbot Barcode Scanner UI (`BarcodeScannerActivity`) into your application’s workflow. It’s as simple as starting a regular Android `Activity`.
First, you need to register the `ActivityResultLauncher` in your `Activity` class and save it as a variable:
```
// Add the following variable in your Activity:
private val barcodeScreenLauncher: ActivityResultLauncher<BarcodeScannerConfiguration> =
registerForActivityResultOk(BarcodeScannerActivity.ResultContract()) { resultEntity ->
// Barcode Scanner result callback:
// Get the first scanned barcode from the result object...
val barcodeItem = resultEntity.result?.items?.first()
// ... and process the result as needed, for example, display as a Toast:
Toast.makeText(
this,
"Scanned: ${barcodeItem?.text} (${barcodeItem?.type})",
Toast.LENGTH_LONG
).show()
}
```
The result of the Barcode Scanner UI will be delivered to the callback you just defined.
Now, to launch the Barcode Scanner UI, you just call the `barcodeScreenLauncher` where needed. For example, in the `setOnClickListener` of your button:
```
// Launch the barcode scanner in your Activity:
barcodeScreenLauncher.launch(BarcodeScannerConfiguration())
```
🚀 That’s it! 🚀 You have successfully integrated a full-featured barcode scanner as an RTU UI Activity into your app. If you’d like, let us know what your time was!
> 💡 Customization: In this Quick Start guide, we have used the default configuration for the scanner UI. Feel free to explore the configs and customize the UI and the behavior according to your needs via the `BarcodeScannerConfiguration` class. For more details, please refer to the [Ready-to-Use UI](https://docs.scanbot.io/barcode-scanner-sdk/android/barcode-scanner/ready-to-use-ui/) page.
| sb_kevin |
1,925,570 | Tools to ease collaboration between data scientists and application developers | As a CTO or an Engineering Manager, you will often face problems with your data scientists and... | 0 | 2024-07-16T14:22:13 | https://jozu.com/blog/tools-to-ease-collaboration-between-data-scientists-and-application-developers/ | programming, ai, productivity, learning | As a CTO or an Engineering Manager, you will often face problems with your data scientists and application developers not being on the same page. Their unique expertise and methodologies frequently make working together difficult, and traditional tools can only do so much to bridge this gap.
These two groups have different mindsets and workflows that can lead to notable slowdowns, especially when passing models between them. Data scientists prioritize experimentation, while developers focus on creating clean, maintainable code. This mismatch and the use of incompatible tools can lead to disjointed development processes and breakdowns in communication.
This article discusses the problems arising from the varying approaches and toolsets data scientists and developers use. It emphasizes the importance of improving their collaboration and introduces a tool to help them work together more efficiently.
To understand their effective collaboration, let’s first examine the key differences between both groups and what requirements decide the tools they use and prioritize.
## Differences between Data Scientists and Application Developers
Your team may encounter problems when data scientists and app developers interface due to their:
- Engineering Approaches
- Workflows
- Toolsets
| | Data Scientists | Application Developers |
| ---------------------- | -------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- |
| Engineering Approaches | A research-oriented approach that priorities results and innovation over code quality and best practices | An engineering approach that’s keen on clean code, efficiency, maintainability and stability |
| Workflows | Flexible, iterative, trial-and-error | Structured, linear or agile/DevOps |
| Toolsets | They require an interactive environments like Jupyter Notebooks | They require an integrated development enviromnent (IDEs) such as visual studio and intelliJ) |
**Engineering approaches**
Data scientists apply a research approach to developing solutions primarily using statistical and machine learning techniques. Their expertise lies in analyzing and interpreting complex datasets, extracting valuable insights, and building predictive models. This causes them to lean towards experimentation and exploration, favoring innovation over strict adherence to code quality or software development best practices.
On the other hand, developers take a software engineering approach, focusing on designing, developing, and maintaining applications tailored to specific user needs. This causes them to prioritize writing clean, efficient, and maintainable code when building applications.
Based on these different approaches, you can see how your team often has opposing priorities. Data scientists prioritize results over clean code, detailed documentation, or rigorous testing, while developers are meticulous and organized.
**Workflows**
Data scientists embrace a flexible and iterative approach throughout their model development. They employ a trial-and-error process of combining data variations and machine learning algorithms to uncover insights from data and produce the most suitable model. As a result, they don't employ the standard scripting, testing, and debugging practices in their development.
Developers follow a more structured and linear workflow to develop applications. They design and develop software based on strict requirements, then test to ensure quality and standard. They also emphasize stability and functionality by adhering to more structured methodologies like Agile or DevOps.
Because of this, the handoff of models from the experimental stage to production often becomes a significant bottleneck, leading to miscommunication, delays, and frustration for everyone involved. This mismatch in workflow leaves you wondering how to bridge this gap and streamline your machine-learning pipeline.
**Toolsets**
Data scientists require toolsets that support active experimentation, rapid prototyping, and model development. This requirement causes them to work in an interactive environment like Jupyter Notebooks. However, the Notebooks' flexible development structure makes them impractical for sharing code or validating the assets associated with a model.
Developer tools are designed for software development and integration. Therefore, they rely on robust IDEs like [](https://visualstudio.microsoft.com/)[Visual Studio](https://visualstudio.microsoft.com/) or [](https://www.jetbrains.com/idea/)[IntelliJ](https://www.jetbrains.com/idea/), which offer advanced coding, debugging, and project management features.
The disparities between each group’s toolset requirements prevent their tools from integrating and interoperating seamlessly. Their traditional tools are designed to accommodate their unique workflow and engineering approach, making it challenging to use each other's traditional tools efficiently. Let’s highlight the friction data scientists or developers encounter when collaborating with these traditional tools.
- Version Control Systems (VCS) like [Git](https://git-scm.com/)
- Specialized ML platforms like [Amazon SageMaker](https://aws.amazon.com/pm/sagemaker/?trk=af448c55-a335-4b68-909c-3589fef8d1a7&sc_channel=ps&ef_id=CjwKCAjwgdayBhBQEiwAXhMxtkNEP1OdAvGTgF-jaL4rEU6uvwuoPKWgCRSFk4MH0paBg1RbF8pK_xoCFjUQAvD_BwE:G:s&s_kwcid=AL!4422!3!645125273744!e!!g!!amazon%20sagemaker!19574556908!145779853672&gclid=CjwKCAjwgdayBhBQEiwAXhMxtkNEP1OdAvGTgF-jaL4rEU6uvwuoPKWgCRSFk4MH0paBg1RbF8pK_xoCFjUQAvD_BwE) and [Google Vertex AI](https://cloud.google.com/vertex-ai)
- Containers like [Docker](https://www.docker.com/)
**Version Control Systems (VCS)**:
Your developers depend on version control systems to enable them to track, manage, and share code changes they make in their IDEs. VCS, like Git, allows multiple developers to work concurrently while tracking different versions of their modifications. It makes it easier to resolve code discrepancies and enables rollbacks to previous versions.
However, it is impractical for data scientists to use Git to manage and share different versions of their models and model artifacts with developers. These models are complex pieces of software in binary code, and Git can't show the differences between versions of binary model files, making it difficult to track any changes. Git also can't handle the large data and model file sizes your data scientists require.
**Specialized ML platforms**:
Specialized ML platforms offer comprehensive tools and services tailored to enable data scientists to develop models. These platforms often provide them with a pre-configured development environment (cloud-based notebooks), eliminating the hassle of manual setup and configuration. They enable data scientists to share and manage their experiments, models, and model artifact versions from one place.
Developers can deploy the data scientist models from the platform, but the platform doesn’t enable them to manage the model versions and model assets in a way that suits their workflows.
**Containers**:
Containers like Docker shine at creating consistent environments for code to run in, making deployment more manageable and reliable. This makes Docker perfect for developers to package and deploy their applications quickly. Containers are also suitable for packaging and deploying models but not model assets, which help debug or modify models. Therefore, developers can struggle to trace model artifacts after deployment.
The more time your teams spend wrestling with this incompatibility, the less time they spend building solutions for your customers. That's why seamless collaboration between data scientists and developers is crucial.
## Streamline collaboration with a unified tool
Siloed information makes it difficult for data scientists and app developers to have a holistic view of the project's progress and identify potential issues early on. For example, model handoff using separate tools often requires manual transfer and translation between different systems. This leaves room for model tampering and the loss of valuable insights about the model lineages.
A unified tool mitigates the pitfalls of this error-prone process and ensures consistency throughout the model development and deployment phases. Unified MLOps tools, such as KitOps, Kubeflow, and MetaFlow, provide different ways for your team to work on the same platform without manual intervention.
[KitOps](https://kitops.ml/) is an open source MLOps tool that provides data scientists and developers with a shared package through ModelKits, where they can access the same information, track development progress in real-time, and collaborate more effectively. They can use this package during model creation, development, and deployment. The package makes it easier for them to integrate their workflows while using their existing traditional tools.
These ModelKits are compatible with the standard development tools they already use, ensuring they can work together, from experimentation to application deployment. Data scientists and developers can efficiently package and version ML models, datasets, code, model assets, and requirements.
ModelKits also eliminate common obstacles that slow development or introduce risk, such as version control issues, model reliability, workflow disparities, etc.
## What to expect from an ideal tool
Some of the key features that make an excellent collaborative tool for any ML organization are:
**Reliable tagging system**
A reliable tool should ensure that your team's models and model assets remain authentic, untampered, and traceable, mitigating the risk of unauthorized modifications throughout the software development lifecycle. This allows developers to confidently deploy models developed by data scientists, knowing they are working with the exact, verified artifacts.
KitOps’ traits as an OCI artifact and its [t](https://kitops.ml/docs/cli/cli-reference.html#kit-tag)[agging system](https://kitops.ml/docs/cli/cli-reference.html#kit-tag) establish lineage across your ModelKit versions and create visibility into the origin and evolution of your ModelKit artifacts (i.e., models and model assets). The system uses immutable, content-addressable storage, which doesn't allow two ModelKits to have the same content version. This implies that a new ModelKit version is only stored when its content changes. Therefore, packaging ModelKits with the same contents and different tags only results in one ModelKit.
This tagging system eliminates the chances of your data scientists having ModelKits with the same model and model assets. It also facilitates the challenge of model provenance for developers when they retrieve and deploy specific models and model assets.
**Synchronized versioning**
KitOps enables your data scientists to simultaneously version their models and model assets (i.e., data, code, configurations, etc.) when they package their ModelKit. This feature assures that their ModelKit's models and model assets are consistent. Your developers can confidently retrieve and deploy specific data scientists' models and model assets without worrying about a mix-up.
**Unified development package**
ModelKits can store data, code, and model as a single unit—a unified development package. With a unified package like ModelKit, your data scientists and developers don't need to operate and communicate in silos. They can develop, integrate, test, and deploy machine learning models from the ModelKit.
Your data scientists can share this unified package containing their models and associated artifacts with developers, who can then seamlessly integrate them into applications and be sure of the ML model's functionalities, requirements, or dependencies.
**Standard package format**
An ideal tool should adhere to OCI standard formats to ensure compatibility with existing DevOps/MLOps pipelines. KitOps packages ModelKits following the OCI standard, making it compliant with all containers. Therefore, your data scientists can package their machine learning models, data, dependencies, and model assets and store them in the team's container registries. Your developers can then easily pull these standardized containers and confidently integrate them into their applications.
The OCI standard packaging format enables your data scientists and developers to continue using existing infrastructure. It promotes a unified workflow where both teams can work independently yet seamlessly integrate their contributions without compatibility or reproducibility issues.
**CLI interface**
CLI tools and workflows are must-haves for rapid development and fine-grained control that both data science and app development teams require. KitOps provides a CLI interface—[KitCLI](https://kitops.ml/docs/cli/cli-reference.html)—for creating, managing, and deploying the ModelKits. This simplifies the technical requirements of using KitOps, making it easy for your data scientists and developers to adopt.
As a CLI-based tool, your data scientists and developers can leverage its CLI commands, remote access, and troubleshooting functionalities to automate tasks, streamline workflows, and enable efficient interaction with data, models, and code.
## How do various collaborative AI/ML tools compare?
Compared to other collaborative tools like Git and Docker, KitOps offers an effective way to package, version, and share AI project assets beyond your data scientist. This makes it easier to manage and distribute AI models and related resources. Here are some ways KitOps compares to these other tools:
## Git vs. KitOps
Git excels at handling software projects with numerous small files, but struggles with large binary objects crucial for AI/ML, like serialized models and datasets. Storing model development code in [ModelKits](https://kitops.ml/docs/modelkit/intro.html) ensures synchronization with Jupyter Notebooks, serialized models, and datasets throughout the development.
| **Criteria** | **KitOps** | **Git** |
| --------------- | -------------------------------------------------------------------------- | ------------------------------------------------ |
| Primary purpose | Versioned packaging for AI/ML projects | Version control for source code |
| Content | Models, datasets, code, metadata, artifacts, and configurations | Source code, text files, and configurations |
| Integration | Works with existing registries, supports [OCI](https://opencontainers.org) | Integrates with CI/CD tools, GitHub, GitLab |
| Target users | Data scientists, DevOps, software development teams | Anyone who works with code |
| Versioning | Built-in versioning for AI assets | Version control for files |
| Security | Immutable packages with provenance tracking | Branch protection, commit signing |
| Ease of use | Simple commands for packing and unpacking | Git commands (add, commit, push, pull) |
| Collaboration | Packages all AI assets for team use | Branching, merging, and pull requests |
| Compatibility | Compatible with various MLOps and DevOps tools | Works with various coding and CI/CD environments |
### Docker vs. KitOps
Docker enables a consistent package to run and deploy models. KitOps excels at creating a unified package for model development and deployment and ensures smooth integration into existing deployment workflows.
| **Criteria** | **KitOps** | **Docker** |
| --------------- | ---------------------------------------------- | ----------------------------------------------- |
| Primary purpose | Versioned packaging for AI/ML projects | Containerization and deployment of applications |
| Content | Models, datasets, code, metadata | Application binaries, libraries, configurations |
| Standards | Uses OCI, JSON, YAML, TAR | Uses OCI, Dockerfile |
| Target users | Data scientists, DevOps, application teams | Developers, DevOps |
| Versioning | Built-in versioning for AI assets | Supports versioning through image tags |
| Security | Immutable packages with provenance tracking | Image signing and vulnerability scanning |
| Ease of use | Simple commands for packing and unpacking | Familiar Docker CLI commands |
| Compatibility | Compatible with various MLOps and DevOps tools | Broad support for various platforms and tools |
### Jupyter Notebook vs. KitOps
Jupyter notebooks are great for developing models. However, they need help with state management and versioning. To address this, you can add notebooks to ModelKit to enable effective versioning and sharing. This lets your data scientist continue using notebooks while allowing the software development teams to access and use respective models efficiently.
| **Criteria** | **KitOps** | **Jupyter Notebook** |
| --------------- | ------------------------------------------- | ------------------------------------------------------- |
| Security | Immutable packages with provenance tracking | Limited built-in security features |
| Versioning | Built-in versioning for AI assets | Limited version control (Git can be used) |
| Primary purpose | Versioned packaging for AI/ML projects | Interactive development environment for data scientists |
| Standards | Uses OCI, JSON, YAML, TAR | Uses JSON for notebook storage |
| Collaboration | Packages all AI assets for team use | Collaborative features through JupyterHub |
Effective collaboration between data scientists and software developers is critical to successful ML software development. However, differences in tools, mindsets, and workflows often need to be addressed. While tools like Git, Docker, and Jupyter Notebooks offer some collaboration features, they have limitations in managing AI/ML assets. KitOps bridges this gap by providing a unified platform for packaging, versioning, and deploying AI models, making collaboration smoother.
If you have any questions about making collaboration smoother for your team with KitOps, start a conversation with us on [Discord](https://discord.com/invite/Tapeh8agYy). Integrating KitOps will allow your team to maintain productivity, streamline deployments, and ensure consistent version control across the project life cycle.
| jwilliamsr |
1,925,572 | Clean Up Your node_modules with npKill 🧹✨ | What is npKill? 🚀 npKill is a fantastic tool designed to help you find and remove old and heavy... | 0 | 2024-07-16T14:22:45 | https://dev.to/randolphdy9/clean-up-your-nodemodules-with-npkill-27la | webdev, javascript, tutorial, productivity | **What is npKill?** 🚀
npKill is a fantastic tool designed to help you find and remove old and heavy node_modules folders from your system. If you're like most developers, your projects can accumulate a lot of unnecessary files, and npKill can help you declutter and free up valuable space.
**Why Use npKill?** 🤔
As developers, we often jump between various projects, and each one has its own node_modules folder. Over time, these can take up significant space on your hard drive. Here’s how npKill can make your life easier:
- Clear Space: Easily identify and remove old node_modules directories that are no longer needed.
- Workspace Usage: Check when you last modified files in a workspace with the last_mod column.
- Fast Performance: Written in TypeScript with low-level searches for optimal performance.
- User-Friendly: No complicated commands—just list your node_modules and press Del to remove them.
- Minimal Dependencies: Lightweight and efficient.
**Features at a Glance** 🌟
- Easily Clear Space: Remove those bulky node_modules folders with a simple command.
- Last Workspace Usage: See the last time you modified a file in each workspace.
- High Speed: Enjoy quick searches and deletions, thanks to low-level performance optimizations.
- Ease of Use: Navigate and delete folders with simple key commands.
- Minimal Dependencies: Keep your system lean with a lightweight tool.
**How to Install npKill** 📦
You don’t need to install npKill to use it! Simply run:
```
bash
Copy code
$ npx npkill
```
But if you prefer to install it globally:
```
bash
Copy code
$ npm i -g npkill
# Unix users may need to run the command with sudo.
```
_Note: NPKILL does not support node versions less than 14. For older versions, use npkill@0.8.3._
**How to Use npKill** 🛠️
Using npKill is straightforward:
```
bash
Copy code
$ npx npkill
# Or just npkill if installed globally
```
By default, npKill will start scanning for node_modules directories from the path where the command is executed. You can navigate the list with the ↓ and ↑ keys, and delete a folder by pressing Space or Del. Open the directory with o, and exit with Q or Ctrl + c.
**Important Reminder** ⚠️
Some applications require their node_modules directory to function correctly. npKill will highlight these with a ⚠️ symbol to remind you to proceed with caution.
**Conclusion** 🎉
npKill is an indispensable tool for any developer looking to maintain a clean and efficient workspace. Give it a try and see how much space you can reclaim!
Happy coding! 👨💻👩💻
For more details, visit the [npKill page on npm](https://www.npmjs.com/package/npkill). | randolphdy9 |
1,925,590 | Let's make a Calculator using Py. | Before we actually make a calculator, let's first see some basic mathematical expressions... 1.... | 0 | 2024-07-16T14:48:42 | https://dev.to/abys_learning_2024/lets-make-a-calculator-ef4 | programming, python, calculator | Before we actually make a calculator, let's first see some basic mathematical expressions...
**_1. Add_**
```
num1 = 2
num2 = 3
print(num1+num2)
5
```
**_2. Subtract_**
```
num1 = 7
num2 = 5
print(num1-num2)
2
```
**_3. Multiply_**
```
num1 = 5
num2 = 5
print(num1*num2)
25
```
**_4. Divide_**
```
num1 = 100
num2 = 5
print(num1/num2)
20
```
**_5. Modulus_** (nothing but remainder)
```
quotient = 5//2
remainder = 5 % 2
print(quotient , "," ,remainder)
2 , 1
```
**_6.Exponentiate_** (powers)
For ex; a power b in python written as a**b
```
num1 = 3
num2 = 3
print(num1**num2)
27
```
---
**_Input Datatype and Typecasting_**
```
# Addition
num1 = int(input("Enter Number 1 : "))
num2 = int(input("Enter Number 2 : "))
result = num1+num2
print("Result is : ", result)
Enter Number 1 : 1
Enter Number 2 : 4
Result is : 5
```
Here it appears as steps but I'm unable to present it.
You can just do it and see.
```
# to make it possible in decimals too we use float
num1 = float(input("Enter Number 1 : "))
num2 = float(input("Enter Number 2 : "))
result = num1+num2
print("Result is : ", result)
Enter Number 1 : 1.5
Enter Number 2 : 2.5
Result is : 4.0
```
Similarly, we do for other operations.
Now, with this knowledge we gonna create a simple calculator by using the following code;
```
print("Simple Calculator")
print("Select Operation : ")
print("1. Add")
print("2. Subtract")
print("3. Multiply")
print("4. Divide")
print("5. Modulus")
print("6. Exponentiate")
choice = input("Enter choice (1/2/3/4/5/6) : ")
num1 = float(input("Enter first Number : "))
num2 = float(input("Enter second Number : "))
if choice == "1" :
result = num1 + num2
print(result)
elif choice == "2" :
result = num1 - num2
print(result)
elif choice == "3" :
result = num1 * num2
print(result)
elif choice == "4" :
result = num1 / num2
print(result)
elif choice == "5" :
result = num1 % num2
print(result)
elif choice == "6" :
result = num1 ** num2
print(result)
else :
print("option not available")
```
So, that's what I learned under this topic.
You can use the same code above and chk whether it works for you too..
Platforms I use to try these codes :
- W3 Schools Tryit Editor
- Google Colaboratory
- Visual Studio Code
.....
| abys_learning_2024 |
1,925,574 | Manifest.json | Manifest.json is necessary for Progressive Web Applications. { "background_color": "#fff", ... | 0 | 2024-07-16T14:23:40 | https://dev.to/theholyspirit/manifestjson-13i | javascript, webdev, pwa, beginners | Manifest.json is necessary for Progressive Web Applications.
```
{
"background_color": "#fff",
"display": "standalone",
"description": "Awesome application portal to Healing Services",
"icons": [
{ "src": "192.png", "sizes": "192x192", "type": "image/png" },
{ "src": "512.png", "sizes": "512x512", "type": "image/png" }
],
"name": "Holy Spirit Healing Services",
"short_name": "The Holy Spirit",
"start_url": "./healingservices.html"
}
``` | theholyspirit |
1,925,575 | Plang programming language Basic understanding and code example | This article explores Plang, an intent-based programming language designed to interpret natural... | 0 | 2024-07-16T14:25:47 | https://dev.to/ingigauti/plang-programming-language-lessons-basic-understanding-and-code-example-10j1 | learning, beginners, tutorial | > This article explores Plang, an intent-based programming language designed to interpret natural language. For more information, visit [plang.is](https://plang.is)
I have added some simple Plang lessons to get you started and to give you an understanding of Plang:
- [Lesson 1: What is Plang & Setting Up Your Environment](https://github.com/PLangHQ/plang/blob/main/Documentation/blogs/Lesson%201.md)
- [Lesson 2: Basic Concepts in Plang](https://github.com/PLangHQ/plang/blob/main/Documentation/blogs/Lesson%202.md)
- [Lesson 3: Let's Create an App](https://github.com/PLangHQ/plang/blob/main/Documentation/blogs/Lesson%203.md)
- [Lesson 4: How Does The Builder Work?](https://github.com/PLangHQ/plang/blob/main/Documentation/blogs/Lesson%204.md)
- [Lesson 5: Errors, Retry, Caching and Events](https://github.com/PLangHQ/plang/blob/main/Documentation/blogs/Lesson%205.md)
- [Next Steps](https://github.com/PLangHQ/plang/blob/main/Documentation/blogs/Lesson%206.md)
What do you think? What can be improved? What is missing?
Come to the [Plang Discord channel](https://discord.gg/A8kYUymsDD) for discussion or to the [Github discussion forum](https://github.com/orgs/PLangHQ/discussions/43). I am there waiting for you. | ingigauti |
1,925,576 | Creation of the main page for the educational institution | Hello everybody! I am developing a website for an educational institution. I was very inspired by... | 0 | 2024-07-16T14:25:50 | https://dev.to/butowka/creation-of-the-main-page-for-the-educational-institution-2nfb | css, webdev, html, beginners | Hello everybody! I am developing a website for an educational institution. I was very inspired by this  and want to reproduce it completely for educational purposes. I faced the problem of how to correctly add images, so that the page was responsive and the images were always linked to the text.
You can see what I got 
But as you can see it is not ideal and this design has many problems with adaptation and correct placement of images.
I really hope that you can help me provide optimal solutions not only for my problem, but also for the existing code.
Link to the github repository: https://github.com/libertasss9/design | butowka |
1,925,577 | is it normal to forget some syntax of javascript after finishing the full course on youtube? | webdev javascript | 0 | 2024-07-16T14:28:01 | https://dev.to/dev_nero/is-it-normal-to-forget-some-syntax-of-javascript-after-finishing-the-full-course-on-youtube-1pmo | #webdev
#javascript | dev_nero | |
1,925,579 | 50 Most Popular SaaS Applications to Use in 2024 | These aren’t your run-of-the-mill programs; oh no, these are the crème de la crème, the SaaS... | 0 | 2024-07-16T14:30:46 | https://dev.to/ai-info/50-most-popular-saas-applications-to-use-in-2024-22mo | lowcode, ai, news | <p>These aren’t your run-of-the-mill programs; oh no, these are the crème de la crème, the SaaS applications that have revolutionized how we do business.</p>
<p>And let’s not forget those SaaS companies, the masterminds behind the magic, who’ve made it their business to ensure you can focus on yours.</p>
<p><strong>The beauty of it all? </strong>No installations, no hardware – just pure, scalable, cost-effective software as a service goodness at your fingertips.</p>
<p>So, are you ready to discover the SaaS applications and mobile apps that are the talk of the town this year?</p>
<p>Let’s get started on this SaaS companies journey through the digital fabric that connects industries and teams, one cloud at a time, thanks to a SaaS company on their SaaS platform.</p>
<h2>Leading SaaS Applications for Project Management</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b713899cc90b8a8f187cc_Image%20post%20(16)%201.webp" /></p>
<p><strong>Project management</strong>: herding cats or for those in the know, elegantly steering projects to success with the right project management software and workflow automation.<br />
<br />
The top SaaS companies have been brewing software magic to make workflows and project management including document management easy.</p>
<p>We’re going to explore the power behind Asana’s organizational charms, ClickUp’s comprehensive platform, and Trello’s visually engaging card system.</p>
<h3><a href="https://asana.com/">Asana</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b69ede85bee62f9726c_4ef85d2e-4689-4a60-a0c9-3db0a19bbc7c.webp" /></p>
<p>In the enchanting world of Asana, tasks and projects dance gracefully across your screen, harmoniously orchestrated by a platform that knows a thing or two about team collaboration. With its bewitching array of tools, Asana casts a spell that turns the chaos of work into organized, manageable bliss.</p>
<p>From gazing into the crystal ball of workflow automation to tracking the sands of time with time tracking, Asana is the wizard of task management.</p>
<h3><a href="https://clickup.com/?utm_source=google&utm_medium=cpc&utm_campaign=gs_cpc_em_nnc_brand_trial_all-devices_troas_lp_x_all-departments_x_brand&utm_content=all-countries_kw-target_text_all-industries_all-features_all-use-cases_clickup_broad&utm_term=b_clickup&utm_creative=651395810831_BrandChampion-03072023_rsa&utm_custom1=&utm_custom2=&gad_source=1&gclid=Cj0KCQjwsaqzBhDdARIsAK2gqnd415rNimGohvIGBtU6DAIyBryXmLZr6j7K1RXcxDVVP9zrZpc1NzkaAkpeEALw_wcB">ClickUp</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b69c3f5ffca0ea204c8_d7a79bb2-7457-4f63-b0bf-5958cabe9d96.webp" /></p>
<p>Ah, <strong>ClickUp</strong>, the young prodigy of the SaaS realm, bursting onto the scene with a customizable platform that’s as versatile as a chameleon in a rainbow factory.<br />
<br />
With the power to integrate with over 1,000 work tools, ClickUp is like a all in one app for productivity, equipped with every gadget you didn’t know you needed.</p>
<p>And with a war chest fattened by a <strong>hefty $400 million in Series C funding, </strong>ClickUp is all set to redefine productivity on its terms.</p>
<h3><a href="https://trello.com/">Trello</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a4ae5a1d22a22fa14_2735a714-e122-49d4-b37f-530ded7a526f.webp" /></p>
<p>Enter the serene realm of <strong>Trello</strong>, where organization is as serene as a Zen garden, and project management takes the form of delightful, draggable cards.<br />
<br />
Here, team collaboration flows as smoothly as a gentle stream, with each card representing a stepping stone to project completion.</p>
<p>Trello’s simplicity is its superpower, proving that sometimes, less is indeed more.</p>
<p><strong>🔥 Pssss... </strong>Also if you are looking for someone to <a href="https://www.deduxer.studio/services/saas-website-design-agency">build and design your SaaS website</a> <strong>within budget and at industry-leading quality</strong>, you can <a href="https://calendar.app.google/jB1sqLuYRuKrA6989">book a 30 minute call</a> or send a quick email to: <em>hi@deduxer.studio</em></p>
<h2>Essential SaaS Tools for Marketing Teams</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b690c07b2ee2405d367_a2eb65c3-0518-4306-bec7-fa0448aebef0.webp" /></p>
<p>Marketing teams, assemble!<br />
<br />
In the fast-paced world of digital marketing, having the right content management and SaaS tools isn’t just nice to have;</p>
<p>it’s like having a superhero cape in a world of mere mortals.<br />
<br />
With the likes of <strong>HubSpot’s</strong> CRM prowess, <strong>Mailchimp’s</strong> email marketing wizardry, and <strong>Hootsuite’s</strong> social media mastery, marketers are equipped with the gadgets to conquer the marketing space.</p>
<h3><a href="https://www.hubspot.com/">HubSpot</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b692605d8e22dfdec16_d619abe1-1a31-44e1-a717-835e4960d20d.webp" /></p>
<p><strong>HubSpot</strong>, the grandmaster of inbound marketing, is a beacon of light in the nebulous world of sales and marketing teams.</p>
<p>This platform doesn’t just offer a CRM;</p>
<p>it’s a full-blown marketing automation powerhouse that seamlessly blends customer relationship management with content management and social media marketing.</p>
<p>By providing tools that streamline workflows and automate mundane tasks, HubSpot frees up marketers to do what they do best – create and innovate.</p>
<h3><a href="https://mailchimp.com/">Mailchimp</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aff5e688a60157824_84a6d0ef-b412-416a-a00d-9aec8eb13ad4.webp" /></p>
<p><strong>Mailchimp</strong>: the name alone conjures images of cheeky primates delivering messages. But make no mistake, this SaaS tool means serious business when it comes to email marketing automation.</p>
<p>With a suite of professionally designed email templates and audience segmentation tools, Mailchimp ensures that your messages hit the right inbox at the right time, every time.</p>
<h3><a href="https://www.hootsuite.com/">Hootsuite</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a622ea4207166648f_1ff32bb8-7664-4aee-9c6b-06b653e02283.webp" /></p>
<p>Oh, Hootsuite, you wise old owl of the social media marketing forest, how effortlessly you help marketing teams manage their social media platforms from one comprehensive suite.</p>
<p>With tools for scheduling, brand sentiment monitoring, and detailed analytics, Hootsuite enables marketers to not just participate in the social media conversation, but to lead it with confidence and poise.</p>
<h2>Top SaaS Platforms for Customer Relationship Management</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666c890d17e8d0638850d84f_Image%20post%20(16)%203.webp" /></p>
<p>Customer Relationship Management (CRM) – it’s like the heart of a business’s body, pumping life into sales, marketing efforts, and sales CRM. The SaaS industry has risen to the challenge, offering platforms like Salesforce’s all-encompassing ecosystem, Zoho CRM’s AI-powered wizardry, and Pipedrive’s intuitive pipeline management.</p>
<p>We’re going to explore the CRM solutions that ensure flourishing customer relationships.</p>
<h3><a href="https://www.salesforce.com/">Salesforce</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a91a9791aaf307ecc_eac61226-aa4f-439d-bb54-41fda460f41d.webp" /></p>
<p><strong>Salesforce</strong>, the titan of the CRM world, stands tall with a unified platform that’s become synonymous with customer data management.</p>
<p>It’s not just a software company; it’s a cloud services powerhouse that’s redefined the sales crm landscape and cemented itself as one of the biggest saas companies on the planet.</p>
<h3><a href="https://www.zoho.com/crm/">Zoho CRM</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aaaee67e77c29cc6d_699b8579-d8a2-4ffe-91c0-235c689c5bd7.webp" /></p>
<p><strong>Zoho CRM</strong>, the crafty magician of the CRM circus, dazzles with a suite of customizable CRM tools. With Zia, the AI-powered sales assistant, Zoho CRM goes beyond mere customer data management;</p>
<p>it’s like having a crystal ball that predicts sales trends and provides sage advice to boost productivity.</p>
<h3><a href="https://www.pipedrive.com/">Pipedrive</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aacf0c7239a8430fe_d41abdfc-c83f-42ca-8bd1-0e343c2da4f3.webp" /></p>
<p><strong>Pipedrive</strong>, the streamlined solution to sales pipeline management, is like a GPS for your sales journey, guiding deals from prospect to closed with ease.</p>
<p>With its visually intuitive interface and innovative AI sales assistant, Pipedrive ensures no opportunity gets lost in the shuffle.</p>
<h2>SaaS for Digital Marketing and SEO</h2>
<p>In the world of digital marketing, a competitor analysis and the right SaaS tools is the between being invisible and famous.</p>
<p>Here are the tools to help you optimise, track and get your content in front of the right people. Let’s get started with the top SaaS for digital marketing and SEO.</p>
<h3><a href="https://www.semrush.com/?l=en&1718298964">SEMrush</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aa0c389c0023107dc_f5b22de6-2652-4fd3-9a0c-f0aa54dd849f.webp" /></p>
<p><strong>SEMrush</strong> is the Swiss Army knife of SEO and digital marketing. This platform offers a comprehensive suite of tools for keyword research, competitor analysis, and site audits.</p>
<p>With SEMrush, marketers can uncover the secrets behind their competitors’ strategies, optimize their own content, and track their progress in real-time. It’s like having a digital marketing guru on speed dial.</p>
<h3><a href="https://moz.com/">Moz</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a4f7a36df3f7c6fac_2d685f29-239f-4d24-a44f-417371c3f684.webp" /></p>
<p><strong>Moz</strong> is another heavyweight in the SEO arena, providing tools that help businesses improve their search engine rankings. From keyword explorer to link building and site audits, Moz offers a robust set of features designed to boost your online visibility.</p>
<p>Their insightful analytics and easy-to-understand metrics make it simpler than ever to enhance your SEO efforts.</p>
<h3><a href="https://ahrefs.com/">Ahrefs</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a8a0357cfca58be74_8e3fa0cf-31cc-426c-a5d7-8036bd89a22a.webp" /></p>
<p><strong>Ahrefs</strong> is renowned for its powerful backlink analysis and competitive research capabilities.</p>
<p>Marketers can use Ahrefs to discover high-performing content, track their backlink profiles, and identify opportunities for link building. With its vast database and user-friendly interface, Ahrefs is an invaluable tool for anyone serious about SEO.</p>
<h3><a href="https://www.hubspot.com/">HubSpot</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aacf0c7239a8430fa_cb813a2a-65f8-46b1-9b59-91737bd8551b.webp" /></p>
<p><strong>HubSpot</strong> isn’t just a CRM powerhouse; it’s also a formidable player in the digital marketing space. With tools for content management, social media marketing, and SEO, HubSpot provides a holistic approach to digital marketing.</p>
<p>Its integrated platform allows marketers to manage their campaigns from a single dashboard, ensuring consistency and efficiency.</p>
<h3><a href="https://marketingplatform.google.com/about/analytics/">Google Analytics</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a193cd1378a2ac6bb_255e624a-4b79-4ef2-9c73-4ea30184f6c5.webp" /></p>
<p><strong>Google Analytics</strong> is the go-to tool for tracking website performance. It offers in-depth insights into user behavior, traffic sources, and conversion rates.</p>
<p>By leveraging Google Analytics, marketers can make data-driven decisions to optimize their campaigns and improve their ROI. It’s like having a crystal ball that reveals the secrets behind your website’s success.</p>
<h3><a href="https://mailchimp.com/">Mailchimp</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a1b5422fc65e5a7de_9a5416be-448b-441c-94ff-118af08b57b0.webp" /></p>
<p><strong>Mailchimp</strong> is a leader in email marketing automation, helping businesses create and manage email campaigns with ease.</p>
<p>With features like audience segmentation, A/B testing, and detailed analytics, Mailchimp ensures that your messages reach the right people at the right time. It’s an essential tool for any digital marketer looking to build and nurture their audience.</p>
<h3><a href="https://surferseo.com/">Surfer SEO</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a08ae60d1577e9eb9_ab873626-8727-4ce2-9d4b-ed16516d0fad.webp" /></p>
<p><strong>Surfer SEO</strong> is a game-changer in the world of content optimization. This platform provides real-time data and actionable insights to help marketers create high-ranking content.</p>
<p>With features like keyword research, content audit, and SERP analysis, Surfer SEO ensures your content is optimized to meet search engine criteria and outperform competitors. It’s a must-have tool for anyone serious about SEO.</p>
<p>By integrating these SaaS tools into their digital marketing and SEO strategies, businesses can enhance their online presence, drive more traffic, and achieve better results.</p>
<p>Whether you’re a seasoned marketer or just starting, these applications provide the insights and capabilities needed to succeed in the competitive digital landscape.</p>
<h2>Essential SaaS Applications for Healthcare Management</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666c88cafdc2ee748a9908b4_Image%20post%20(16)%2013.webp" /></p>
<p>In the realm of healthcare, SaaS applications are like the high-tech stethoscopes of the digital age.</p>
<p>They provide healthcare professionals with the tools they need to manage patient care, streamline operations, and comply with regulations, all while maintaining the utmost standards of security and privacy.</p>
<h3><a href="https://www.epic.com/"><code>Epic Systems</code></a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a97a54db4c228e3e3_7a668969-91a7-4128-99cf-5998536e7f12.webp" /></p>
<p><strong>Epic Systems</strong> is a giant in the healthcare software sector, offering a comprehensive electronic health records (EHR) system that's as vital to healthcare providers as a heartbeat.</p>
<p>Epic's software facilitates seamless patient care coordination, complex scheduling, and clinical reporting, ensuring that patient records are as meticulously maintained as a surgeon's instruments.</p>
<h3>Cerner</h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ab016e36e04194992_acc017e8-51ac-4ff0-897f-54f9d9858c9c.webp" /></p>
<p><strong>Cerner's health</strong> information technologies connect people and systems at more than 27,500 contracted provider facilities worldwide. With a focus on advancing the quality of healthcare, their solutions assist clinicians in making care decisions and enable organizations to manage the health of populations. Cerner is to healthcare what a pacemaker is to the heart; it keeps everything ticking along smoothly.</p>
<h3><a href="https://www.athenahealth.com/">Athenahealth</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a3247785fbcefc6b5_72f47726-f85b-4710-abac-9ec85a241895.webp" /></p>
<p><strong>Athenahealth</strong> has a cloud-based suite of services that are like the Swiss Army knife for healthcare management.</p>
<p>From EHR to medical billing to patient engagement, Athenahealth’s services are designed to take clinicians out of the weeds and give them insight into the daily operations of their healthcare organization, so managing medical practices can be as painless as possible.</p>
<p>By plugging these SaaS applications into their workflow, providers can deliver better patient care, be more efficient and have better outcomes. As the industry evolves these tools will be must haves for a healthier world.</p>
<h2>Best SaaS Solutions for Data Analytics</h2>
<p>Data analytics – it’s like the modern-day alchemy, turning raw data into golden nuggets of insight through data connectivity.</p>
<p>SaaS has a treasure trove of solutions like Tableau’s mesmerizing visualizations, Google Analytics’ comprehensive web analytics, and Looker’s seamless data connectivity.</p>
<p>Eager to turn your data into a strategic asset? Here’s how enterprise resource planning platforms enable it.</p>
<h3><a href="https://www.tableau.com/">Tableau</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6b14ad10d0f31ccb1d_49c7b8b2-6998-45c5-8599-7cfcd69c93f2.webp" /></p>
<p><strong>Tableau</strong>, the artist of the data analytics world, paints a picture that transforms raw data into striking insights.</p>
<p>With its powerful data visualization capabilities, Tableau takes the complexity of data analysis and serves it up as digestible, actionable intel.</p>
<h3><a href="https://marketingplatform.google.com/about/analytics/">Google Analytics</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b27eb504c8741be30de0f_8a4e57e6-3a03-4ff8-8354-b459214410ba.webp" /></p>
<p><strong>Google Analytics</strong>, the trusty sidekick of marketers and data analysts alike, offers web analytics that are as comprehensive as an encyclopedia.</p>
<p>It tracks, reports, and dissects website traffic and user behavior, giving businesses the analytical edge they need to optimize their online presence.</p>
<h3><a href="https://marketplace.looker.com/">Looker</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b693acd47a40f47ae81_7f4f2d1f-c808-4a21-b95c-adac0fb33532.webp" /></p>
<p><strong>Looker</strong> offers:</p>
<ul>
<li>A platform that integrates with various data sources for seamless data connectivity</li>
<li>The ability to gaze into the depths of business operations</li>
<li>Advanced analytics to chart a course for success</li>
</ul>
<h2>Popular SaaS Applications for Team Collaboration</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666c889483341d8cfa5dfa6c_Image%20post%20(16)%207.webp" /></p>
<p>Team collaboration: it’s the secret sauce to any successful venture, and SaaS applications like Slack, Microsoft Teams, and Zoom, especially for video meetings, are the ingredients that make it zesty.</p>
<p>These platforms are where ideas take flight, and productivity soars – all within the cozy confines of the digital workspace.</p>
<h3><a href="https://slack.com/">Slack</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aa0c389c0023107b0_e64a01dd-4712-43f6-ba05-5ede9db256fe.webp" /></p>
<p><strong>Slack</strong>, the darling of the team collaboration sphere, offers a centralized platform where business communications and workplace banter collide in perfect harmony.</p>
<p>With a plethora of integrations and a user-friendly interface, Slack ensures that your team stays connected, whether they’re in the office next door or across the globe.</p>
<h3><a href="https://www.microsoft.com/en-us/microsoft-teams/group-chat-software">Microsoft Teams</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a29e43096e9d4f14c_183b376c-2acd-4afe-9752-fd4ffa0fb66b.webp" /></p>
<p>Microsoft Teams, the juggernaut of collaboration, offers the following features:</p>
<ul>
<li>Chat functionality</li>
<li>Video meetings</li>
<li>File storage capabilities</li>
<li>Seamless integration with productivity apps</li>
</ul>
<p>Teams is the powerhouse that keeps the gears of collaboration well-oiled and running smoothly.</p>
<h3><a href="https://zoom.us/">Zoom</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a1aeeb4eb789e93b4_d276ecba-2d47-47d6-82fe-e349b1e86a64.webp" /></p>
<p>Zoom, the poster child of the remote work revolution, offers a cloud-based platform that makes video conferencing as commonplace as a morning cup of coffee.</p>
<p>With features that include seamless scheduling, screen sharing, and integration with other productivity tools, Zoom ensures that distance is no barrier to effective communication and collaboration.</p>
<h2>Prominent SaaS Applications for Financial Technology (Fintech)</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666c8840bb5f2cadec46480c_Image%20post%20(16)%208.webp" /></p>
<p>In the bustling world of financial technology, or fintech, risk management and SaaS applications are the unsung heroes, working tirelessly behind the scenes to ensure transactions flow as smoothly as a river.</p>
<p>These fintech SaaS solutions provide the financial sector with innovative tools for payment processing, risk management, and customer service automation.</p>
<h3><a href="https://stripe.com/">Stripe</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a334fa862d3d608cb_46c2d383-c7ef-4b0d-8eb9-d8edab6c80ae.webp" /></p>
<p><strong>Stripe</strong> is a shining star in the fintech SaaS universe, providing powerful payment processing services that make it a breeze for businesses to accept payments online.</p>
<p>Stripe's suite of APIs allows for the seamless integration of payment services into apps and websites, making it a go-to platform for e-commerce sites, subscription services, and on-demand marketplaces.</p>
<h3><a href="https://squareup.com/us/en">Square</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a3b38788f43ce39e7_318a78ae-d050-4e65-bb44-7dc73c8018e2.webp" /></p>
<p><strong>Square</strong> has transformed the way small businesses process transactions, turning smartphones and tablets into portable cash registers.</p>
<p>With its user-friendly interface and a suite of tools for point-of-sale (POS) transactions, inventory management, and customer engagement, Square empowers businesses of all sizes to take control of their financial operations.</p>
<h3><a href="https://www.adyen.com/">Adyen</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a35be91ecddf42b91_3448c267-751e-4ab8-a36f-f07f4709fe24.webp" /></p>
<p><strong>Adyen</strong>, the global payment company, offers a platform that supports a vast array of payment methods, currencies, and devices. It's designed to streamline payment processes for both online and in-store transactions, providing businesses with the agility to adapt to the ever-changing landscape of global commerce.</p>
<p>By harnessing the power of these fintech SaaS applications, businesses can navigate the complex financial ecosystem with confidence, knowing that their transactions are secure, efficient, and user-friendly.</p>
<h2>Leading SaaS Companies for E-Commerce</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ac264ac233e89f953_a5e47a8c-d274-4cdd-a2b3-0383304d9806.webp" /></p>
<p>E-commerce and SaaS are like peanut butter and jelly – a match made in digital heaven.</p>
<p>With platforms that offer built-in tools for effective webstore management and support for both B2C and b2b saas business models, companies like Shopify, BigCommerce, and WooCommerce empower merchants to turn browsers into buyers with ease.</p>
<h3><a href="https://www.shopify.com/free-trial?term=shopify&adid=699117274727&campaignid=21270911700&branded_enterprise=1&BOID=brand&utm_medium=cpc&utm_source=google&gad_source=1&gclid=Cj0KCQjwsaqzBhDdARIsAK2gqndIE2JbVdrWi6L9ma40LdT7qR_xhI3bMzB2UfGcKQLx7tIv_6w_D7caAsqTEALw_wcB&cmadid=516752332;cmadvertiserid=10730501;cmcampaignid=26990768;cmplacementid=324494362;cmcreativeid=163722649;cmsiteid=5500011">Shopify</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a5273cee26e72db1d_5849765a-ce7e-4c97-a716-b1ca040463ca.webp" /></p>
<p>Shopify, the titan of e-commerce SaaS, provides merchants with an intuitive platform that takes the hassle out of online store setup and management.</p>
<p>With Shopify, you get a one-stop-shop for all your e-commerce needs, from inventory management to marketing tools that drive sales and grow your business.</p>
<h3><a href="https://www.bigcommerce.com/">BigCommerce</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6aba91ef168b37807b_1fa47a53-ddc0-4d08-b78d-301732eb9f43.webp" /></p>
<p>BigCommerce, the rising star in the e-commerce galaxy, dazzles with its modern platform designed to launch and scale online businesses beyond the storefront. With its leader status in B2B and B2C commerce and a robust revenue forecast, BigCommerce is the platform that savvy merchants bank on for success.</p>
<h3><a href="https://www.hostinger.com/woocommerce-hosting?utm_campaign=Generic-Hosting|NT:SE|LO:Other-EU&utm_medium=ppc&gad_source=1&gclid=Cj0KCQjwsaqzBhDdARIsAK2gqncHD5m11o81CCXhrS1kVyajpozI6QLs4pPwSGwWH5axpp4v9giUxp8aAgxbEALw_wcB">WooCommerce</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6abb3cac5f59e9a088_a8e5eb1f-73cf-4e8c-9121-d604755acf7c.webp" /></p>
<p>WooCommerce, the open-source powerhouse that integrates seamlessly with WordPress, offers flexibility and control over your online store that’s as refreshing as a breeze on a hot summer day.</p>
<p>With WooCommerce, the world of e-commerce is your oyster, ready to be customized to your heart’s content.</p>
<h2>Prominent SaaS Applications for Accounting</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666c8968f538953b76490147_Image%20post%20(16)%2010.webp" /></p>
<p>When it comes to managing accounting and tax data, you’ll want the best SaaS applications for financial management at your fingertips. From QuickBooks Online’s deft handling of accounting tasks to Xero’s cloud-based bookkeeping, and FreshBooks’ savvy invoicing and accounting solutions, these tools are like the financial wizards of the modern business world.</p>
<p>We’re going to delve into the details and examine how these platforms streamline financial management.</p>
<h3><a href="https://quickbooks.intuit.com/online/">QuickBooks Online</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ab7ad1d15aca845ed_5955d39f-f02b-4138-8821-c991ac6c2fc5.webp" /></p>
<p>QuickBooks Online, the seasoned veteran in the financial management arena, simplifies the accounting process for small businesses like a knife through butter. Its ability to manage accounting and tax data with ease, not to mention the convenience of creating and sending invoices, makes QuickBooks Online a beloved tool among entrepreneurs and accountants alike.</p>
<h3><a href="https://www.xero.com/">Xero</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ad848f4ba471a171a_0542ab62-4352-40da-9c5e-fe779f6e5997.webp" /></p>
<p>Xero, the sleek and modern accounting software, offers a suite of online tools that cater to companies of all sizes. It’s like having a personal financial assistant that’s on call 24/7, helping you keep track of your finances, pay bills, and connect bank accounts with unparalleled ease.</p>
<h3><a href="https://www.freshbooks.com/">FreshBooks</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ada14c06599445d49_1ebfd0c1-b6d5-4c40-a2dd-c1d31ef79c97.webp" /></p>
<p>FreshBooks, the maestro of billing and accounting for the freelancer and small business owner, automates the invoicing process with the finesse of a seasoned orchestra conductor. It integrates seamlessly with payment processing platforms, ensuring that getting paid is as pleasant as receiving a compliment on a job well done.</p>
<h2>SaaS Tools for Website Building</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666c8595d9fbb311121eb330_building.webp" /></p>
<p>In the digital age, having a robust online presence is crucial, and SaaS tools for website building, including those with a drag-and-drop builder, make it easier than ever to create stunning, functional websites without needing to write a single line of code. Let’s explore some of the top platforms that are revolutionizing website creation: Webflow, WordPress, Wix, Squarespace, and Framer.</p>
<h3><a href="https://webflow.com/?utm_source=google&utm_medium=search&utm_campaign=SS-GoogleSearch-Brand-Tier4&utm_term=kwd-11668981_webflow_e_645380252638__&gad_source=1&gclid=Cj0KCQjwsaqzBhDdARIsAK2gqnerLUSe-loPGaO0M-CyVEYR881lEPZRpZr7fC3FdL7EPybJDiFSQAsaArfKEALw_wcB">Webflow</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a3247785fbcefc711_0c715e28-94c3-4e38-b6c9-db26330537aa.webp" /></p>
<p>Webflow is a powerhouse for those who want to design and develop at the same time. With its intuitive drag-and-drop interface, Webflow allows you to create responsive websites visually, while also giving you the power to dive into the code if needed. It's perfect for designers who want to bring their visions to life without compromise.</p>
<h3><a href="https://wordpress.com/">WordPress</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a4f8704155a29ccaa_d94a472b-68a1-4d6f-a0b5-21af102169ba.webp" /></p>
<p>WordPress is the granddaddy of website builders, powering over 40% of the web. Its flexibility and extensive plugin ecosystem make it a favorite for everyone from bloggers to large enterprises. Whether you need a simple blog or a complex e-commerce site, WordPress has the tools to make it happen.</p>
<h3><a href="https://www.wix.com/">Wix</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ac264ac233e89f957_6f289c0b-bdfd-485d-b92c-7bafa691253f.webp" /></p>
<p>Wix is known for its user-friendly drag-and-drop builder, which makes it easy for anyone to create a professional-looking website in no time. With a wide range of templates and customization options, Wix is ideal for small businesses, artists, and anyone looking to establish an online presence quickly and easily.</p>
<h3><a href="https://www.squarespace.com/">Squarespace</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a8a0357cfca58bed1_2c6d938c-b95d-4941-b764-7998d4e41938.webp" /></p>
<p>Squarespace is the go-to platform for those who value aesthetics and functionality. It offers beautifully designed templates and a seamless user experience, making it a favorite among creatives and entrepreneurs. With built-in e-commerce capabilities and robust blogging features, Squarespace is a versatile tool for building a polished website.</p>
<h3><a href="https://www.framer.com/">Framer</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a97a54db4c228e3ed_c5b7a1c7-4994-42d1-a4d6-6ff1f77a14f7.webp" /></p>
<p>Framer is a cutting-edge tool that combines design and code to create interactive, high-fidelity prototypes and websites. It's perfect for designers who want to push the boundaries of what's possible on the web. With Framer, you can create complex animations and interactions that make your website stand out from the crowd.</p>
<p>By leveraging these SaaS tools, you can build a website that not only looks great but also performs well, helping you to attract and retain visitors. Whether you're a seasoned developer or a complete beginner, there's a platform here that can meet your needs and help you achieve your online goals.</p>
<h2>Key SaaS Tools for Cybersecurity</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b27eac8bd690c5110048f_10aed89f-f1a5-4208-9bbc-c1119e0a24c2.webp" /></p>
<p>Cybersecurity and threat intelligence are not just buzzwords; they’re the moat that protects your castle from digital marauders.</p>
<p>The best SaaS tools for cybersecurity, like CrowdStrike, Palo Alto Networks, and KnowBe4, are the sentinels standing guard, ensuring your data stays safe and your peace of mind intact.</p>
<h3><a href="https://www.crowdstrike.com/en-us/">CrowdStrike</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6acdb9e833eba8f5f2_b1393a02-ec9b-4e89-b2d8-899d61e9f3ba.webp" /></p>
<p>CrowdStrike, the nimble ninja of cybersecurity, leaps into action with its cloud-native platform that shields:</p>
<ul>
<li>endpoints</li>
<li>cloud workloads</li>
<li>identities</li>
<li>data</li>
</ul>
<p>from cyber threats. With a revenue showcasing significant growth, it’s clear that businesses trust CrowdStrike to keep their digital domains secure from nefarious forces.</p>
<h3><a href="https://www.paloaltonetworks.com/">Palo Alto Networks</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a605d89cd0de4b50b_0a789a8c-f802-48be-9829-54c4cb1a4b05.webp" /></p>
<p>Palo Alto Networks offers a comprehensive suite of tools, including:</p>
<ul>
<li>Advanced firewalls</li>
<li>Threat intelligence</li>
<li>Endpoint protection</li>
<li>Cloud security</li>
</ul>
<p>These solutions are designed to protect business data and ensure secure operations, making Palo Alto Networks a trusted ally in the fight against digital danger.</p>
<h3><a href="https://www.knowbe4.com/kmsat-request-a-demo-ga-global?utm_term=knowbe4&utm_campaign=Google_Search_Global_B_Brand&utm_source=google&utm_medium=cpc&gad_source=1&gclid=Cj0KCQjwsaqzBhDdARIsAK2gqneJUGjuXnn25PsBuHbb6XsC3FAVwAuQIrtnaOVMNM8c8TV4ZTy0mHgaApgYEALw_wcB">KnowBe4</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a736447d9f93f7d41_89dfbcc9-5e7e-4c60-a31e-ca5029d725b8.webp" /></p>
<p>KnowBe4, the maestro of security awareness training, empowers organizations to fortify their human defenses against cyber attacks. With comprehensive training programs and simulated phishing attacks, KnowBe4 transforms employees from potential security risks into vigilant protectors of the organization’s digital assets.</p>
<h2>Innovative SaaS Startups to Watch</h2>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a1b5422fc65e5a7fc_10b2f0c8-4884-4af0-b383-d2ae2dca5ffc.webp" /></p>
<p>As we cast our eyes to the future, innovative SaaS startups beckon with the promise of cutting-edge solutions, including low-code platforms.<br />
<br />
These are the trailblazers, the disruptors, the dreamers turned doers – Airtable’s <a href="https://deduxer.studio/blog/4-best-low-code-mobile-app-development-platforms-in-2024">low-code platforms</a>, Notion’s organizational prowess, and Superhuman’s email mastery.</p>
<p>We’re going to take a closer look at their offerings and find out why they’re garnering attention.</p>
<h3><a href="https://www.airtable.com/">Airtable</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6a0e4f7c8af518341e_042be917-439c-4987-ad8a-5ddff7c559b3.webp" /></p>
<p><strong>Airtable</strong>, the architect of low-code platforms, offers a flexible and intuitive way to create databases that look as good as they function.</p>
<p>With a substantial Series F funding under its belt, Airtable is poised to redefine how we interact with data, making it an exciting prospect in the SaaS landscape.</p>
<h3><a href="https://www.notion.so/product?utm_source=affl&utm_medium=vanhungha8391&pscd=affiliate.notion.so&ps_partner_key=dmFuaHVuZ2hhODM5MQ&gad_source=1&gclid=EAIaIQobChMIiZ366I3ZhgMVoZGDBx00Gwb4EAAYASAAEgJ_uvD_BwE&ps_xid=czJCxl3Qd0qliy&gsxid=czJCxl3Qd0qliy&gspk=dmFuaHVuZ2hhODM5MQ">Notion</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6afa94a93ea6f6c0c8_858677cb-5bec-44b8-ba58-2e1b4c90e644.webp" /></p>
<p><strong>Notion</strong>, the organizational oracle, has risen from humble beginnings to a user base of 30 million, a testament to its revolutionary approach to productivity.</p>
<p>With a towering valuation and an ever-expanding team, Notion is rewriting the rules of collaboration and personal organization.</p>
<h3><a href="https://superhuman.com/plp/brand-v1?utm_source=google&utm_medium=cpc&utm_campaign=11211278605&agid=110851738300&utm_term=superhuman&gad_source=1&gclid=CjwKCAjw34qzBhBmEiwAOUQcF6yBD_vpivJaCVJ8dwm2QD7Lbq1CgYwP0QauZq4x6iT4Z-j8JoCidxoCokoQAvD_BwE">Superhuman</a></h3>
<p><img alt="" src="https://cdn.prod.website-files.com/6451597c62e55d5ea41332a5/666b0b6ac25aff07e5691998_52cc19a0-1db7-4dea-8caa-5c22c40a5ae3.webp" /></p>
<p><strong>Superhuman</strong>, the speed demon of email clients, promises to make you twice as fast at conquering your inbox.</p>
<p>With significant Series B funding and a headquarters in the tech mecca of San Francisco, Superhuman is on a mission to elevate the email experience to new heights.</p>
<h2>Summary</h2>
<p>As we conclude our whirlwind tour of the 50 most popular SaaS applications of 2024, it’s clear that <a href="https://deduxer.studio/blog/9-saas-trends-and-predictions-for-2024-deduxer">SaaS is not just a trend</a>; it’s a revolution that’s reshaping how businesses operate.</p>
<p>From project management to cybersecurity, these tools are the digital bedrock upon which companies build their success.</p>
<p>Embracing these applications is not just about keeping up with the times; it’s about leveraging the power of the cloud to unlock potential, drive innovation, and stay ahead in the game.</p>
<p>So, whether you’re a startup founder, a marketing maestro, or a data analyst, the SaaS landscape has something to offer that can transform the way you work.</p>
<p>Dive in, explore, and harness these tools to power up your business.</p>
<p>Who knows, they might just be the secret weapon you need to conquer your industry!</p>
<h2>Frequently Asked Questions</h2>
<h3>What exactly is SaaS, and how does it benefit my business?</h3>
<p>Congratulations, you've just discovered the magical world of SaaS! It's basically like having your own personal genie for software - no need for installations and maintenance, just hop on the internet and let the magic happen. Plus, it's super scalable and saves you a ton of cash. Enjoy your newfound software powers!</p>
<h3>Can SaaS applications improve team collaboration even with remote teams?</h3>
<p>Wow, who would have thought that software designed for team collaboration could actually improve collaboration? SaaS applications like Slack, Microsoft Teams, and Zoom are tailor-made to help remote teams communicate and work together effectively. So, yes, they can definitely improve team collaboration, even with remote teams.</p>
<h3>Are there SaaS tools that can help with both project management and financial management?</h3>
<p>Wow, shocker! Of course, there are SaaS tools that handle project management and financial management. Ever heard of Asana and QuickBooks Online? They're just a couple of the many options out there.</p>
<h3>How do I choose the best SaaS platform for my e-commerce business?</h3>
<p>Wow, choosing a SaaS platform for your e-commerce business is such a breeze! Just look for ease of use, built-in management tools, and support for different business models. You might want to check out Shopify, BigCommerce, or WooCommerce - they're popular for a reason. Good luck with that!</p>
<h3>What kind of cybersecurity threats can SaaS tools protect my business from?</h3>
<p>Wow, SaaS cybersecurity tools can shield your business from ransomware, malware, credential phishing, account takeovers, supplier fraud, and business email compromise. They offer advanced protection from companies like CrowdStrike and Palo Alto Networks. So helpful, right?</p>
Source of Article - https://www.deduxer.studio/blog/50-most-popular-saas-applications-to-use-in-2024 | ai-info |
1,925,580 | How I added a guestbook to my website with Clerk, Neon, and Netlify Functions | Back in the early days of the web, guestbooks were everywhere on the internet. Many sites had this... | 0 | 2024-07-16T14:32:17 | https://brianmorrison.me/blog/how-i-added-a-guestbook-to-my-website-with-clerk-neon-and-netlify-functions/ | webdev, sql, serverless, netlify | Back in the early days of the web, guestbooks were everywhere on the internet.
Many sites had this feature where random visitors could leave a note for the person running the site or for other visitors to read. I was looking for an interesting way to add Clerk’s authentication components to something I maintained, something that isn’t a demo app that I’m going to scrap after using it a few times. So I figure why not let friends and visitors add a note, just like the good ol’ days.
The guestbook is back!
## Project requirements
My website is built with Gatsby (yes, I’m a hold out) and hosted on Netlify. I have two GitHub Action workflows that deploy the site, one to a dev environment and one to production. I do this instead of relying on Netlify to automatically deploy because there are some post build tools I want to run after a successful deploy. All of the content is stored in my Notion workspace and the build process uses a custom adapter I wrote to generate the static site.
The following outlines what I needed in order to make this happen:
- I wanted to require users to sign in to leave a message.
- I didn’t want to rebuild the site every time a message was added, so I needed a database.
- I need to manually approve the messages so nothing bad ends up on the site.
As a TLDR, here is what I used to pull this off:
- Clerk was added to authenticate users.
- Three views were added - the public list of entries, a gated view to add an entry, and a page to approve/disapprove entries that only I could access.
- Three Netlify functions were created, one to accommodate each of the views above.
- Neon and Drizzle were added to store data, manage the schema, and render the pages.
## Building the functionality
There were a surprising number of things I needed to add and update to make this work.
### Setting up the database
I started by creating a database on Neon. I also immediately created a `dev` branch that I could use as an environment to experiment with. Database branches on Neon work a bit differently then I’m used to, so I was not able to merge my changes from `dev` into `main`, but I’ll show how I tackled that a bit later using my GitHub Actions workflows.
I added the connection string to my `.env` file to be used locally. I then added Drizzle to the project, not only to use as an ORM, but also as a schema change management tool. I really only needed one table with a few fields:
```tsx
// functions/db/schema.ts
import { boolean, integer, pgEnum, pgTable, serial, timestamp, uniqueIndex, varchar } from 'drizzle-orm/pg-core';
export const guestbookEntries = pgTable('guestbook_entries', {
id: serial('id').primaryKey(),
userId: varchar('user_id', { length: 256 }).notNull(),
name: varchar('name', { length: 256 }).notNull(),
imageUrl: varchar('image_url', { length: 256 }).notNull(),
message: varchar('message', { length: 5000 }).notNull(),
createdOn: timestamp('created_on').notNull().defaultNow(),
isApproved: boolean('is_approved').notNull().default(false),
notifiedOn: timestamp('notified_on'),
});
```
For change management, I’ve got a `drizzle.config.ts` file in the root of my project that contains the configuration needed by `drizzle-kit`.
```tsx
// drizzle.config.ts
import type { Config } from "drizzle-kit";
import * as dotenv from 'dotenv'
dotenv.config({ path: '.env' })
console.log(process.env.DATABASE_URL)
export default {
schema: "./functions/db/schema.ts",
out: "./drizzle",
driver: 'pg',
dbCredentials: {
connectionString: process.env.DATABASE_URL as string,
},
verbose: true,
strict: false,
} satisfies Config;
```
And finally, I updated my `package.json` file to have a script I can use to push changes:
```json
// package.json
"db:push": "drizzle-kit push:pg --config drizzle.config.ts"
```
This lets me run `npm run db:push` to apply changes, which will also be handy when updating my deployment scripts.
### Updating the app
Before getting into the views and functions that were built, I wanted to start by showing the component that’s used to render the entries, in both the public and secured views. This component lets me decide to display the button to change approval status using a callback to the parent page when clicked.
```tsx
// src/components/GuestbookEntryRow.tsx
import React from 'react'
import { GuestbookEntry } from '../models'
import Box from './ui/Box'
import Button from './Button'
type Props = {
entry: GuestbookEntry
allowToggleApproval?: boolean
onToggleApproval?: (entry: GuestbookEntry) => void
}
function GuestbookEntryRow({ entry, allowToggleApproval, onToggleApproval }: Props) {
return (
<Box className="flex md:flex-row gap-4">
<img src={entry.imageUrl} alt={entry.name} className="w-8 h-8 rounded-full mt-1" />
<div className='flex mb-2 gap-2 md:gap-6 md:flex-row flex-col'>
<div className="flex-1 flex flex-col">
<span className="flex-1">{entry.name}</span>
<span className="italic text-gray-700">{new Date(entry.createdOn).toLocaleDateString()}</span>
{allowToggleApproval && onToggleApproval && (
<>
<span>{entry.isApproved ? "✅ Approved" : "⛔️ Not approved"} </span>
<div>
<Button onClick={() => onToggleApproval(entry)}>
{entry.isApproved ? "Unapprove" : "Approve"}
</Button>
</div>
</>
)}
</div>
<div>
"{entry.message}"
</div>
</div>
</Box>
)
}
export default GuestbookEntryRow
```
Here is the `GuestbookEntry` model that will be passed around as well:
```tsx
// src/models.ts
export type GuestbookEntry = {
id: number
userId: string
name: string
imageUrl: string
message: string
createdOn: Date
isApproved?: boolean
}
```
As stated above, I needed three views. The first is pretty straightforward, a public listing of approved entries. This view calls a serverless function to get the list of entries to display
```tsx
// src/pages/guestbook/index.tsx
import React, { useEffect, useState } from 'react'
import DefaultLayout from '../../layouts/DefaultLayout'
import Container from '../../components/Container'
import Button from '../../components/Button'
import { GuestbookEntry } from '../../models'
import { navigate } from 'gatsby'
import GuestbookEntryRow from '../../components/GuestbookEntryRow'
function Guestbook({ location }) {
const [entries, setEntries] = useState<GuestbookEntry[]>([])
useEffect(() => {
async function init() {
let res = await fetch('/.netlify/functions/get-guestbook-entries')
let json = await res.json()
setEntries(json)
}
init()
}, [])
return (
<DefaultLayout location={location} pageTitle="Guestbook">
<Container>
<div className="flex justify-between mb-2">
<h1>Guestbook</h1>
<div className="flex items-center">
<Button onClick={() => navigate("/guestbook/add")}>
Add a message
</Button>
</div>
</div>
<div className="flex flex-col gap-2">
{entries.map((entry, i) => <GuestbookEntryRow key={i} entry={entry} />)}
</div>
</Container>
</DefaultLayout>
)
}
export default Guestbook
```
The associated serverless function uses Drizzle to query any approved entries and sorts them in reverse chronological order.
```tsx
// functions/get-guestbook-entries.ts
import { guestbookEntries } from './db/schema';
import { neon } from '@neondatabase/serverless';
import { drizzle } from 'drizzle-orm/neon-http';
import { desc, eq } from 'drizzle-orm';
const sql = neon(process.env.DATABASE_URL!);
const db = drizzle(sql);
export const handler = async () => {
try {
let entries = await db.select()
.from(guestbookEntries)
.where(eq(guestbookEntries.isApproved, true))
.orderBy(desc(guestbookEntries.createdOn))
.execute();
return {
statusCode: 200,
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(entries),
};
} catch (error) {
console.log(error)
return {
statusCode: 500,
body: JSON.stringify({ message: 'Internal Server Error' }),
};
}
};
```
The next view is to allow users to add an entry. It’s a simple form that calls a serverless function to add a record to the database. Note that the main part of the page is wrapped in either `SignedIn` or `SignedOut`. These are Clerk components that render the page differently if the user is signed in or not. If the user is not signed in, the `RedirectToSignIn` component will send them to the sign in page using Clerk’s Account Portal (which I didn’t have to build at all).
```tsx
// src/pages/guestbook/add.tsx
import React, { useState } from 'react'
import DefaultLayout from '../../layouts/DefaultLayout'
import Container from '../../components/Container'
import { SignedIn, RedirectToSignIn, SignedOut, UserButton, } from 'gatsby-plugin-clerk'
import Button from '../../components/Button';
import Box from '../../components/ui/Box';
function AddToGuestbook({ location }) {
const [message, setMessage] = useState('')
const [isMessageSubmitted, setIsMessageSubmitted] = useState(false)
const [isLoading, setIsLoading] = useState(false)
const onSubmit = async () => {
setIsLoading(true)
await fetch('/.netlify/functions/submit-guestbook-entry', {
method: 'POST',
body: JSON.stringify({ message }),
})
setIsLoading(false)
setIsMessageSubmitted(true)
}
return (
<DefaultLayout location={location}>
<Container>
<SignedIn>
<h1 className='mb-2'>Sign the guestbook</h1>
<Box>
<div>
<label className="block text-gray-700 text-sm font-bold mb-2">
Message
</label>
<textarea
className="shadow-sm appearance-none border rounded w-full py-2 px-3 text-gray-700 mb-3 leading-tight focus:outline-none focus:shadow-outline"
value={message}
onChange={e => setMessage(e.target.value)}
rows={4} />
</div>
<div className="flex justify-between">
<Button onClick={() => onSubmit()} disabled={isLoading}>
Submit
</Button>
<UserButton />
</div>
</Box>
{isMessageSubmitted && (
<Box className='mt-2'>
<span className="font-extrabold">✅ You've signed the guestbook!</span> I'll review and approve it when I have a free moment. Thanks!
</Box>
)}
</SignedIn>
<SignedOut>
<RedirectToSignIn />
</SignedOut>
</Container>
</DefaultLayout>
)
}
export default AddToGuestbook
```
And here is the serverless function for this one. Notice that I’m calling `validateSession`. That is a custom function that ensures that the request that’s sent in is authenticated. It checks the session cookie against the JWKS endpoint for my Clerk instance, as well as parsing the claims so I can use the embedded information about the user.
```tsx
// functions/submit-guestbook-entry.ts
import { guestbookEntries } from './db/schema';
import { neon } from '@neondatabase/serverless';
import { drizzle } from 'drizzle-orm/neon-http';
import { eq } from 'drizzle-orm';
import { validateSession } from './shared/auth';
const sql = neon(process.env.DATABASE_URL!);
const db = drizzle(sql);
export const handler = async (event) => {
try {
let validateTokenResponse = await validateSession(event);
if(!validateTokenResponse.isValid || !validateTokenResponse.claims) {
return {
statusCode: 401,
body: JSON.stringify({ message: 'Unauthorized' }),
};
}
const { message } = JSON.parse(event.body);
await db.insert(guestbookEntries).values({
userId: validateTokenResponse.claims.sub as string,
name: validateTokenResponse.claims.name,
imageUrl: validateTokenResponse.claims.image_url,
message,
}).execute();
return {
statusCode: 200
};
} catch (error) {
return {
statusCode: 500,
body: JSON.stringify({ message: 'Internal Server Error' }),
};
}
};
```
The final view allows me to toggle the approval status of each entry. This is actually very similar to the `guestbook/index.tsx` page, but calls a different functions AND adds the props to `GuestbookEntryRow` to show the necessary elements to manage entries.
```tsx
// src/pages/guestbook/manage.tsx
import React, { useEffect, useState } from 'react'
import DefaultLayout from '../../layouts/DefaultLayout'
import Container from '../../components/Container'
import { GuestbookEntry } from '../../models'
import GuestbookEntryRow from '../../components/GuestbookEntryRow'
function ManageGuestbookEntries({ location }) {
const [entries, setEntries] = useState<GuestbookEntry[]>([])
useEffect(() => {
async function init() {
let res = await fetch('/.netlify/functions/get-all-guestbook-entries')
let json = await res.json()
setEntries(json)
}
init()
}, [])
async function toggleApprovalStatus(entry: GuestbookEntry) {
await fetch('/.netlify/functions/update-guestbook-entry', {
method: 'POST',
body: JSON.stringify({ id: entry.id, isApproved: !entry.isApproved }),
})
let newEntries = entries.map(e => {
if (e.id === entry.id) {
e.isApproved = !e.isApproved
}
return e
})
setEntries(newEntries)
}
return (
<DefaultLayout location={location}>
<Container>
<h1>Manage Guestbook Entries</h1>
<div className="flex flex-col gap-2">
{entries.map((entry, i) => (
<GuestbookEntryRow
key={i}
entry={entry}
allowToggleApproval
onToggleApproval={toggleApprovalStatus} />
))}
</div>
</Container>
</DefaultLayout>
)
}
export default ManageGuestbookEntries
```
The serverless function to render this page is also slightly modified from `get-guestbook-entries.ts`. The key difference is the filters on the query have changed, but also I’m checking `validateTokenResponse.isAdmin` before proceeding.
```tsx
import { guestbookEntries } from './db/schema';
import { neon } from '@neondatabase/serverless';
import { drizzle } from 'drizzle-orm/neon-http';
import { desc, eq } from 'drizzle-orm';
import { validateSession } from './shared/auth';
const sql = neon(process.env.DATABASE_URL!);
const db = drizzle(sql);
export const handler = async (event) => {
try {
let validateTokenResponse = await validateSession(event);
if(!validateTokenResponse.isValid || !validateTokenResponse.claims || !validateTokenResponse.isAdmin) {
return {
statusCode: 401,
body: JSON.stringify({ message: 'Unauthorized' }),
};
}
let entries = await db.select()
.from(guestbookEntries)
.orderBy(desc(guestbookEntries.createdOn))
.execute();
return {
statusCode: 200,
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(entries),
};
} catch (error) {
console.log(error)
return {
statusCode: 500,
body: JSON.stringify({ message: 'Internal Server Error' }),
};
}
};
```
Also, the `update-guestbook-entry.ts` function simply sets the `isApproved` value based on the entry ID:
```tsx
import { guestbookEntries } from './db/schema';
import { neon } from '@neondatabase/serverless';
import { drizzle } from 'drizzle-orm/neon-http';
import { desc, eq } from 'drizzle-orm';
import { validateSession } from './shared/auth';
const sql = neon(process.env.DATABASE_URL!);
const db = drizzle(sql);
export const handler = async (event) => {
try {
let validateTokenResponse = await validateSession(event);
if(!validateTokenResponse.isValid || !validateTokenResponse.claims || !validateTokenResponse.isAdmin) {
return {
statusCode: 401,
body: JSON.stringify({ message: 'Unauthorized' }),
};
}
let { id, isApproved } = JSON.parse(event.body);
await db.update(guestbookEntries)
.set({ isApproved: isApproved })
.where(eq(guestbookEntries.id, id))
.execute();
return {
statusCode: 200
};
} catch (error) {
console.log(error)
return {
statusCode: 500,
body: JSON.stringify({ message: 'Internal Server Error' }),
};
}
};
```
Finally, here is the code for `validateSession`. It uses the JWKS endpoint from Clerk to validate the token and extract the claims. For checking admin status, I’m looking at `claims["metadata"]["is_admin"]` which is set on a per-user basis in Clerk. More of this will be shown in the next section.
```tsx
import jwt from "jsonwebtoken";
import jwksClient from 'jwks-rsa';
type ValidateTokenResponse = {
isValid: boolean
isAdmin?: boolean
claims?: jwt.JwtPayload
}
export async function validateSession(event): Promise<ValidateTokenResponse> {
const cookies = {}
event.headers.cookie.split(';').forEach(c => {
const [key, value] = c.split('=');
cookies[key.trim()] = value;
});
const token = cookies["__session"];
return new Promise((resolve, reject) => {
var client = jwksClient({
jwksUri: process.env.JWKS_URI as string
});
function getKey(header, callback){
client.getSigningKey(header.kid, function(err, key) {
// @ts-ignore
var signingKey = key.publicKey || key.rsaPublicKey;
callback(null, signingKey);
});
}
jwt.verify(token, getKey, function(err, decoded) {
if(err) reject({
isValid: false
})
let claims: jwt.JwtPayload = decoded as jwt.JwtPayload;
let isAdmin = false
if(claims["metadata"] && claims["metadata"]["is_admin"] === "true") {
isAdmin = true
}
resolve({
isValid: true,
isAdmin,
claims
})
});
})
}
```
### Configure Clerk
I started with configuring a new application in Clerk and enabled Google and GitHub social login options. Thankfully Clerk has preconfigured OAuth apps set up with these services while running locally, so social sign in works out of the box.
There are two keys that need to be added: a publishable key and a secret key. The publishable key ships with the front end, whereas the secret key is used on the backend. I just added these to my `.env` file for local testing.
Next up, I installed the Gatsby Clerk plugin with the following command.
```bash
npm i gatsby-plugin-clerk
```
Then I added it to my plugins list in `gatsby-config.js`. Doing this wraps the application in the necessary context for Clerk to run properly, similar to adding `ClerkProvider` if you’ve ever done this with Next.js.
```jsx
// gatsby-config.js
module.exports = {
siteMetadata: {
title: `Brian Morrison II`,
siteUrl: `https://brianmorrison.me`,
description: "Personal blog of Brian Morrison II, full stack developer & developer educator."
},
plugins: [
...
'gatsby-plugin-clerk',
...
]
}
```
I can now use the Clerk components on my website, but I also needed to grab the JWKS URI to allow my requests to be authenticated on the backend. This is found by clicking the “**Show JWT public key**” button in the previous screenshot. This value is stored in my `.env` file was `JWKS_URL`.
Now by default, some of the info I need from the user is not included in the claims. Specifically, the full name of the user, profile image url, and the metadata I can use to verify admin status. I’m going to use the Public Metadata functionality of Clerk, which lets me add arbitrary JSON to a user object. By finding my user record in the Clerk dashboard and scrolling down to the bottom, I can add that JSON.
Now I can customize the session token by heading to “**Sessions**” from the sidebar, then “**Edit**” in the *Customize session token* section.
Customizing it like so adds the info to the claims, eliminating the need for me to hit the Clerk Backend API to pull this info each time a user request is made.
Now the claims available to me from my serverless function looks like this:
```jsx
{
azp: 'http://localhost:8888',
exp: 1712182402,
iat: 1712182342,
image_url: 'https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvb2F1dGhfZ2l0aHViL2ltZ18yZVRGajVvWEY5NDlWaHhtaVVIekhXNXoxdUEifQ',
iss: 'https://natural-grackle-61.clerk.accounts.dev',
jti: 'e9d730ca796f6a9f95ba',
metadata: { is_admin: 'true' },
name: 'Brian Morrison II',
nbf: 1712182332,
sid: 'sess_2ebSK4wzSIaDrvkuObItsznm2e9',
sub: 'user_2eTFj4C5N1hzq2k9qrep45KHtJk'
}
```
At this point, everything works locally! Now the challenge of pushing it out to the public comes in.
## Updating the deploy pipeline
As mentioned earlier, I have two deployment pipelines. The first deploys the `dev` branch of my website and is executed manually. The second deploys `main` and runs automatically when changes are done to main.
### Development
Updating deployment was pretty straightforward. There were a number of new environment variables that needed to be configured in a few places:
**GitHub Actions**
Since Actions is used during the build process, the only environment variable needed here was `GATSBY_CLERK_PUBLISHABLE_KEY`. In order to accommodate the two environments, I created an Actions secret called `DEV_GATSBY_CLERK_PUBLISHABLE_KEY` which is mapped into the build environment in the `.github/workflows/deploy-dev.yaml` workflow.
```yaml
name: Deploy dev
on:
workflow_dispatch:
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: actions/setup-node@v3
with:
node-version: 18
- name: Install Netlify CLI
run: npm install -g netlify-cli
- name: Install deps
run: |
cd website
npm install
- name: Build
run: |
cd website
netlify build
env:
NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
GATSBY_CLERK_PUBLISHABLE_KEY: ${{ secrets.DEV_GATSBY_CLERK_PUBLISHABLE_KEY }} # Here is where the key was added
- name: Deploy
run: |
cd website
netlify deploy --alias dev
env:
NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
```
This is added in the repository settings under “**Secrets and variables**” > “**Actions**”.
**Netlify**
Any secret environment variables need to be configured in Netlify, so the following were added there:
- `CLERK_SECRET_KEY` - The secret key of my Clerk instance.
- `DATABASE_URL` - The connection string to the `dev` branch in Neon.
- `JWKS_URI` - The JWKS URI for my Clerk instance.
These were added under “**Site configuration**” > “**Environment variables**” > “**Environment variables**”. Initially I set up the same variables for all deployment contexts, but that will change in the next section.
### Production
The production deploy was a bit trickier to configure compared to dev.
**Clerk**
When an application in Clerk is created, it’s in development mode. This allows you to use the dev instances of the OAuth applications to quickly get up and running and test social sign in. When moving to production mode, you’ll need to configure your own OAuth apps in the providers you are using, as well as make some DNS changes.
Each provider is different, so instead of walking through how to set up each individually, you can find more info here:
- GitHub - https://clerk.com/docs/authentication/social-connections/github
- Google - https://clerk.com/docs/authentication/social-connections/google
After setting up OAuth apps in both of the providers and getting the required Client ID and Client Secrets, I set them up in Clerk under User & Authentication > Social Connections.
Clicking the cog next to each provider let me fill in the details.
Finally, I needed to grab the publishable key, secret key, and JWKS URI, all of which are in the API Keys section. These will be used in the next few sections.
Next I needed to add a few DNS records to my registrar. Each registrar is very different, so I wont walk through the specifics, but all of the required records are detailed in the Domains section.
**GitHub Actions**
First off, I needed to apply any schema changes to the `main` branch in Neon, so I added the connection string for that branch to the `DATABASE_URL` Actions secret for the workflow. Then I added a new step into `.github/workflows/deploy-prod.yaml` to apply schema changes to the production branch in Neon.
```yaml
name: Deploy prod
on:
workflow_dispatch:
push:
branches:
- main
paths:
- website/**.*
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: actions/setup-node@v3
with:
node-version: 18
- name: Install Netlify CLI
run: npm install -g netlify-cli
- name: Install deps
run: |
cd website
npm install
- name: Apply schema changes # This step was added
run: |
cd website
npm run db:push
env:
DATABASE_URL: ${{ secrets.DATABASE_URL }}
- name: Deploy
run: |
cd website
npm run deploy:prod
env:
NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
GATSBY_CLERK_PUBLISHABLE_KEY: ${{ secrets.GATSBY_CLERK_PUBLISHABLE_KEY }}
- name: Create PostHog annotations
run: |
cd tools/posthog-annotator
go mod tidy
go run .
env:
PH_PROJECT_ID: ${{ secrets.PH_PROJECT_ID }}
PH_API_KEY: ${{ secrets.PH_API_KEY }}
NOTION_TOKEN: ${{ secrets.NOTION_TOKEN }}
NOTION_CMS_DBID: ${{ secrets.NOTION_CMS_DBID }}
```
Now whenever this workflow runs, the database changes will be pushed into Neon automatically. I also added the `GATSBY_CLERK_PUBLISHABLE_KEY` Actions secret and am referencing the production publishable key in this workflow.
**Netlify**
The last step was to update the production version of the environment variables in Netlify. Navigating to the same section as detailed above, I can edit an environment variable and opt to use a different value for each deploy context.
Updating the `CLERK_SECRET_KEY`, `JWKS_URI`, and `DATABASE_URL` made the production deploy of my website use the production resources.
## The result
At the end of all this, I can now have random (yet signed in) people leave messages on my website for everyone to read!
I can also manage entries to make sure nothing bad ends up on my site.
<aside>
💡 Feel free to drop by and [sign the guestbook](https://brianmorrison.me/guestbook)!
</aside>
If you enjoyed this article, you might also like my friend [Felix’s](https://twitter.com/felixvemmer) guide on [adding a subscription wall to his blog with Clerk, ContentLayer, and Next](https://www.felixvemmer.com/en/blog/mdx-blog-subscription-wall-with-clerk).
| brianmmdev |
1,925,581 | Visual Test Automation with Python and Applitools: Using Ignore Regions | Introduction Visual test automation is essential to ensure that the user interfaces (UIs) of web... | 0 | 2024-07-16T14:34:38 | https://dev.to/jeissyguimaraes/visual-test-automation-with-python-and-applitools-using-ignore-regions-2k4p | python, testing, automation, aplitools | **Introduction**
##
Visual test automation is essential to ensure that the user interfaces (UIs) of web applications are correct and visually consistent. By using Applitools, we can perform automated visual comparisons, identifying subtle differences that might be missed in manual tests. A useful feature of Applitools is the ability to define "Ignore Regions" - areas of the page that are ignored during visual comparison, such as dynamic elements that change frequently (e.g., banners, ads, etc.).
In this article, we will explore how to configure and use "Ignore Regions" in automated visual tests with Python and Applitools.
**Advantages of Applitools for Layout and Visual Testing**
🔍 **Visual Difference Detection:** Applitools uses AI to detect visual differences that might not be captured by traditional code checks. This is crucial to ensure that the user interface is correct and free from visual regressions.
🔧 **Ease of Integration:** It can be easily integrated with various test automation tools like Selenium, Cypress, among others. This allows you to add visual checks to your existing test flows without major rewrites.
🛠 **Simplified Test Maintenance:** With Applitools' "Baseline" approach, it is easy to update and maintain visual tests. When a UI change is intentional, you can update the baseline with a click.
🚫 **Ignore Regions:** Allows you to specify areas of the page to be ignored during visual comparison. This is useful for dynamic areas that change frequently and are not relevant to the visual test.
Code Implementation EyesLibrary Class The EyesLibrary class manages the integration with Applitools. Let's focus specifically on the function that defines the regions to be ignored during visual tests.
**Advantages of the check_window_with_ignore Function**
The check_window_with_ignore function is crucial for the robustness of visual tests, allowing specific areas of the page to be ignored. This is particularly useful in scenarios where dynamic elements, such as ads or notifications, can introduce visual variations that are not relevant to the test.
**Example of Use**
In the login test, we use this functionality to ignore specific elements of the page that might vary between test runs.
---
---
**Conclusion**
By using Applitools with Python, we can efficiently perform automated visual tests. The "Ignore Regions" functionality is especially useful for dynamic areas of the page, ensuring that our visual tests are precise and relevant. With this configuration, you can easily integrate these tests into your CI/CD pipeline, ensuring the continuous visual quality of your application.
For more information, check out the documentation for [Applitools](https://applitools.com/docs/api-ref/sdk-api/xcui/checksettings/)
The complete code can be found on [GitHub](https://github.com/jeissyguimaraes/selenium_python_aplitools).
| jeissyguimaraes |
1,925,582 | Kubernetes- Advanced Concepts: Day 8 of 50 days DevOps Tools Series | Introduction Welcome to Day 8 of our 50 Days DevOps Tools series. Yesterday, we covered... | 0 | 2024-07-16T14:38:59 | https://dev.to/shivam_agnihotri/kubernetes-advanced-concepts-day-8-of-50-days-devops-tools-series-5f0p | kubernetes, containers, devops, automation | ## **Introduction**
Welcome to Day 8 of our 50 Days DevOps Tools series. Yesterday, we covered the fundamentals of Kubernetes, including its architecture and basic commands. Today, we will explore more advanced Kubernetes concepts such as Deployments, StatefulSets, and Persistent Storage. These concepts are crucial for managing complex applications and ensuring data persistence.
**Deployments:**
A Deployment provides declarative updates to applications. It ensures that a specified number of pod replicas are running at any given time. Deployments are used to manage the lifecycle of applications, including scaling, updating, and rolling back to previous versions.
**Key Features of Deployments:**
**Rolling Updates:** Gradually replace old pods with new ones without downtime.
**Rollback:** Revert to a previous version if something goes wrong.
**Scaling:** Increase or decrease the number of pod replicas.
**Self-Healing:** Automatically replace failed pods.
Here’s how to create a Deployment using a YAML configuration file.
```
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
```
**Explanation:**
**apiVersion:** Specifies the API version.
**kind:** Specifies the type of Kubernetes object (Deployment).
**metadata:** Contains metadata about the Deployment, including the name.
**spec:** Defines the desired state of the Deployment.
**replicas:** Specifies the number of pod replicas.
**selector:** Selects pods based on labels.
**template:** Defines the pod template.
**metadata:** Contains labels for the pods.
**spec:** Defines the containers in the pods.
**Commands:**
```
kubectl apply -f deployment.yaml #Create a Deployment
kubectl get deployments #Get info of Deployment
kubectl describe deployment <deployment-name> #Describe a Deployment
kubectl scale deployment nginx-deployment --replicas=5 #Scale a Deployment.
kubectl set image deployment/nginx-deployment nginx=nginx:1.16.0 #update a Deployment, here deployment name is nginx-deployment
kubectl rollout undo deployment/nginx-deployment #Rollback a Deployment
```
**StatefulSets:**
StatefulSets are used to manage stateful applications, where each pod has a unique identity and stable network identity. Unlike Deployments, StatefulSets ensure that pods are created in a specific order and have persistent storage.
**Key Features of StatefulSets**
**Stable Network Identities:** Each pod gets a unique DNS name.
**Persistent Storage:** Volumes are bound to the pod and not the node.
**Ordered Deployment and Scaling:** Pods are created and deleted in a specific order.
**Rolling Updates:** Gradually replace old pods with new ones without downtime.
**Creating a StatefulSet**
Here’s how to create a StatefulSet using a YAML configuration file.
```
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: web
spec:
selector:
matchLabels:
app: nginx
serviceName: "nginx"
replicas: 3
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
volumeMounts:
- name: www
mountPath: /usr/share/nginx/html
volumeClaimTemplates:
- metadata:
name: www
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 1Gi
```
**Explanation:**
**apiVersion:** Specifies the API version.
**kind:** Specifies the type of Kubernetes object (StatefulSet).
**metadata:** Contains metadata about the StatefulSet, including the name.
**spec:** Defines the desired state of the StatefulSet.
**selector:** Selects pods based on labels.
**serviceName:** Specifies the headless service managing the StatefulSet.
**replicas:** Specifies the number of pod replicas.
**template:** Defines the pod template.
**metadata:** Contains labels for the pods.
**spec:** Defines the containers in the pods.
**volumeMounts:** Mounts the persistent volume to the pod.
**volumeClaimTemplates:** Defines the persistent volume claims for the pods.
**Commands:**
```
kubectl apply -f statefulset.yaml #Create a statefulset
kubectl get statefulsets # Get info of a statefulset
kubectl describe statefulset web #Describe a statefulset
kubectl scale statefulset web --replicas=5 #Scale a statefulset
```
**Persistent Storage:**
Persistent storage in Kubernetes is essential for stateful applications that need to retain data across pod restarts and rescheduling. Kubernetes provides several types of persistent storage options, including PersistentVolumes (PV) and PersistentVolumeClaims (PVC).
**PersistentVolumes (PV)**
A PersistentVolume (PV) is a piece of storage in the cluster that has been provisioned by an administrator or dynamically provisioned using Storage Classes. It is a resource in the cluster just like a node is a cluster resource.
**PersistentVolumeClaims (PVC)**
A PersistentVolumeClaim (PVC) is a request for storage by a user. It is similar to a pod. Pods consume node resources, and PVCs consume PV resources.
**Creating a PersistentVolume and PersistentVolumeClaim**
PersistentVolume (pv.yaml)
```
apiVersion: v1
kind: PersistentVolume
metadata:
name: pv-volume
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
hostPath:
path: "/mnt/data"
```
PersistentVolumeClaim (pvc.yaml)
```
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pvc-claim
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 5Gi
```
**Explanation:**
**apiVersion:** Specifies the API version.
**kind:** Specifies the type of Kubernetes object (PersistentVolume or PersistentVolumeClaim).
**metadata:** Contains metadata about the object, including the name.
**spec:** Defines the desired state of the object.
**capacity:** Specifies the storage capacity.
**accessModes:** Defines how the volume can be accessed (ReadWriteOnce, ReadOnlyMany, ReadWriteMany).
**hostPath:** Specifies the path on the host node (for PV).
**Commands:**
```
kubectl apply -f pv.yaml #Create a Persistent Volume
kubectl apply -f pvc.yaml #Create a Persistent Volume Claim
kubectl get pv #Get info of a Persistent Volume
kubectl get pvc #Get info of a Persistent Volume Claim
```
**Conclusion:**
Understanding Deployments, StatefulSets, and Persistent Storage in Kubernetes is crucial for managing and scaling complex applications. These concepts ensure that your applications are resilient, scalable, and capable of handling stateful workloads. In the next post, we will continue our deep dive into Kubernetes with more advanced topics and useful tools.
🔄 Subscribe to our blog to get notifications on upcoming posts.
👉 **Be sure to follow me on LinkedIn for the latest updates**: [Shiivam Agnihotri](https://www.linkedin.com/in/shivam-agnihotri/)
| shivam_agnihotri |
1,925,583 | London Theatre Tickets: How to Get Discounts & Offers | London's West End is famed for its world-class theatre productions, from timeless classics to... | 0 | 2024-07-16T14:41:08 | https://dev.to/theatreticket001/london-theatre-tickets-how-to-get-discounts-offers-31g1 | london, theatre, tickets | London's West End is famed for its world-class theatre productions, from timeless classics to exciting new performances. Whether you're a theatre aficionado or planning your first visit, finding the best deals on **[London theatre tickets](https://theatretickets-london.co.uk/
)** can enhance your experience immensely. Here's how to find the best discounts and offers.
Start with Trusted Online Retailers
When hunting for London theatre tickets, begin with reputable online retailers such as Theatretickets-London.co.uk. This site has been offering competitively priced tickets since 2003, providing a reliable and secure booking process. With daily updates and new offers, it’s a prime starting point.
Book Early for the Best Deals
One straightforward way to secure discounts on London theatre tickets is by booking early. Many shows offer lower prices for early bookings, allowing you to nab the best seats at reduced rates. Stay alert for the latest shows on sale to take advantage of these early-bird deals.
Look for Last-Minute Deals
If you're flexible with your plans, last-minute ticket deals can offer significant savings. Websites frequently list discounted tickets for performances that haven't sold out. These deals are perfect for spontaneous theatre nights.
Explore Discount Categories
Websites like Theatretickets-London.co.uk have sections like "Discount Theatre Tickets" and "Special Offers." Regularly browsing these categories can help you find substantial savings on various shows. Whether you’re into musicals, plays, or family shows, there are often great deals available.
Use Promotional Codes and Vouchers
Promotional codes and vouchers are excellent ways to reduce the cost of London theatre tickets. Sign up for newsletters from ticket retailers to receive exclusive discount codes. Keep an eye out for special promotions that may coincide with holidays or theatre anniversaries.
Attend Matinee Performances
Matinee performances, usually held in the afternoon, are often cheaper than evening shows. If your schedule allows, attending a matinee can be an affordable way to enjoy top productions without paying evening prices.
Look for Group Discounts
If you’re planning to attend a show with friends or family, many theatres offer group discounts. These can make it more affordable for larger parties to enjoy a performance together. Check the theatre’s website or contact their box office directly to inquire about group rates.
Consider Off-Peak Times
Ticket prices can vary depending on the time and day of the week. Off-peak times, like weekday evenings or non-holiday periods, often have lower prices. Opting for a show during these times can help you take advantage of reduced rates.
Follow Theatre News and Updates
Keeping up with the latest West End news can give you early access to new productions and ticket offers. Follow theatre blogs, social media pages, and sign up for newsletters to stay in the loop and grab the best deals as they become available.
Conclusion
Finding discounts and offers on London theatre tickets doesn't have to be daunting. By using trusted online retailers, booking early, and staying informed about promotions, you can enjoy the magic of the West End without overspending. Enjoy your theatre experience!
| theatreticket001 |
1,925,591 | Managing Kubernetes on Hetzner with Cluster API | In This Article Introduction Prerequisites Step 1 - Prepare your Hetzner Account Step 2 -... | 28,086 | 2024-07-16T20:56:06 | https://community.hetzner.com/tutorials/kubernetes-on-hetzner-with-cluster-api | kubernetes, devops, clusterapi, cloud | ## In This Article
0. [Introduction](#introduction)
1. [Prerequisites](#prerequisites)
2. [Step 1 - Prepare your Hetzner Account](#step-1-prepare-your-hetzner-account)
3. [Step 2 - Create a management cluster](#step-2-create-a-management-cluster)
4. [Step 3 - Create your workload cluster](#step-3-create-your-workload-cluster)
4. [Step 4 - Install components in your cluster](#step-4-install-components-in-your-cluster)
5. [Step 5 - Move your management cluster to the created cluster on Hetzner (Optional)](#step-5-move-your-management-cluster-to-the-created-cluster-on-hetzner-optional)
6. [Next steps](#next-steps)
7. [Baremetal](#baremetal)
8. [Conclusion](#conclusion)
## Introduction
Managing Kubernetes clusters can be a daunting task, especially at scale. The Cluster API (CAPI) is an official Kubernetes SIG project that aims to simplify the provisioning, upgrading, and operating multiple clusters in a declarative way.
This approach offers several benefits over Infrastructure as Code tools, such as Terraform and Ansible, since it manages the entire lifecycle of your cluster. This includes automated creation, scaling, upgrades and self-healing, unlike IaC tools that run a predefined workflow only when triggered.
These benefits can be better understood by comparing tools in the same scenario: If someone accidentally deletes or changes a virtual machine or a load balancer after the initial provisioning with IaC tools, your infrastructure will remain broken until the next time you make a change, or until you see the mistake by chance (or worse, when your customers start reporting issues). With Cluster API, the state of your cluster is continuously reconciled to match the desired state, automatically fixing configuration drift.
The [Cluster API Provider Hetzner (CAPH)](https://github.com/syself/cluster-api-provider-hetzner) is an open-source project (maintained by Syself and the community; not a Hetzner project) that allows you to leverage the capabilities of Cluster API to manage highly-available Kubernetes clusters on both Hetzner baremetal servers (Robot) and Hetzner cloud instances.
This tutorial covers the process of setting up a highly-available Kubernetes cluster on Hetzner Cloud using CAPH.
## Prerequisites
- [Docker](https://docs.docker.com/engine/install/), for running containers
- [Kind](https://kind.sigs.k8s.io/docs/user/quick-start#installation), to create a local Kubernetes cluster
- [kubectl](https://kubernetes.io/docs/tasks/tools/#kubectl) and [clusterctl](https://cluster-api.sigs.k8s.io/user/quick-start#install-clusterctl), to access and manage your clusters
- A Hetzner Cloud account
- An SSH key
- Basic knowledge of Kubernetes
## Step 1 - Prepare your Hetzner Account
Create a new project in the Hetzner Cloud Console, go to the "Security" tab and create an API token with read and write access. Note it down.
Next, add your public SSH key to the project.
## Step 2 - Create a management cluster
A Kubernetes cluster is needed to run the Cluster API and CAPH controllers. It will act as a management cluster, allowing you to manage workload clusters with Kubernetes objects. In this way, the controllers will handle the entire lifecycle of the machines and infrastructure.
We will start with a local Kind cluster to serve as a temporary bootstrap cluster. Later, we will be able to run the controllers on the new workload cluster in Hetzner Cloud, and move our resources there. If you already have a running Kubernetes cluster, feel free to use it instead.
Create a local Kind (Kubernetes in Docker) cluster:
```shell
# Create a cluster with Kind
kind create cluster --name caph-mgt-cluster
# Initialize it
clusterctl init --core cluster-api --bootstrap kubeadm --control-plane kubeadm --infrastructure hetzner
```
Now, create a secret to enable CAPH to communicate with the Hetzner API:
```shell
# Replace <YOUR_HCLOUD_TOKEN> with the API token you generated in the previous step
kubectl create secret generic hetzner --from-literal=hcloud=<YOUR_HCLOUD_TOKEN>
```
## Step 3 - Create your workload cluster
Define your cluster variables:
```shell
export HCLOUD_SSH_KEY="<ssh-key-name>" \
export HCLOUD_REGION="fsn1" \
export CONTROL_PLANE_MACHINE_COUNT=3 \
export WORKER_MACHINE_COUNT=3 \
export KUBERNETES_VERSION=1.29.4 \
export HCLOUD_CONTROL_PLANE_MACHINE_TYPE=cpx31 \
export HCLOUD_WORKER_MACHINE_TYPE=cpx31
```
And create your cluster:
```shell
# Generate the manifests defining a workload cluster, and apply them to the bootstrap cluster
clusterctl generate cluster --infrastructure hetzner:v1.0.0-beta.35 hetzner-cluster | kubectl apply -f -
# Get the kubeconfig for this new cluster
clusterctl get kubeconfig hetzner-cluster > hetzner-cluster-kubeconfig.yaml
```
Every component and configuration of this workload cluster can be defined declaratively in the management cluster. If you run the clusterctl generate command again, you will see the actual manifests that were applied to it. This means you can scale, delete, and modify clusters only by interacting with Kubernetes resources.
Before you use Cluster API Provider Hetzner in a production scenario, you should read through the [CAPH](https://syself.com/docs/caph) and [CAPI](https://cluster-api.sigs.k8s.io) documentations, and familiarize yourself with the main resources you'll be interacting with like Clusters, Machines, Machine Deployments, etc.
## Step 4 - Install components in your cluster
Your newly created cluster needs a few key components before you can host your workloads in it. These are a Container Network Interface (CNI), responsible for networking capabilities, and a Cloud Controller Manager (CCM), which allows you to properly use Hetzner resources such as Load Balancers.
```shell
export KUBECONFIG=hetzner-cluster-kubeconfig.yaml
# Install Hetzner CCM
kubectl apply -f https://github.com/hetznercloud/hcloud-cloud-controller-manager/releases/latest/download/ccm.yaml
# Install Flannel CNI - You can use your preferred CNI instead, e.g. Cilium
kubectl apply -f https://github.com/flannel-io/flannel/releases/latest/download/kube-flannel.yml
```
And that's it! You now have a working Kubernetes cluster in Hetzner Cloud.
If you want to delete the cluster, you can run the command below:
```shell
kubectl delete cluster hetzner-cluster
```
This will delete the cluster and all resources created for it, like machines.
## Step 5 - Move your management cluster to the created cluster on Hetzner (Optional)
You can use your new cluster on Hetzner as a management cluster, moving away from your temporary bootstrap cluster.
Run the clusterctl init command to deploy CAPI and CAPH controllers to your new cluster:
```shell
KUBECONFIG=hetzner-cluster-kubeconfig.yaml clusterctl init --core cluster-api --bootstrap kubeadm --control-plane kubeadm --infrastructure hetzner
```
And, back on your local kind cluster, use clusterctl to move your resources:
```shell
# This will make the secret automatically move to the target cluster
kubectl patch secret hetzner -p '{"metadata":{"labels":{"clusterctl.cluster.x-k8s.io/move":""}}}'
# Move the cluster definitions to the new cluster, you can omit the namespace to use default
clusterctl move --to-kubeconfig="hetzner-cluster-kubeconfig.yaml --namespace=<target-namespace>"
```
After the move, you can safely delete the local Kind cluster:
```shell
kind delete cluster --name caph-mgt-cluster
```
## Next steps
Your workload cluster was created with the default kubeadm bootstrap and controlplane providers. For production use, you may want to add additional layers to this configuration and create your own node images, as the default configuration provides only the basics to have a running cluster.
For more information on which aspects are handled by CAPH, you can check the project's [GitHub readme](https://github.com/syself/cluster-api-provider-hetzner?tab=readme-ov-file#-clarifying-scope).
## Baremetal
In the introduction to this article, it was stated that CAPH fully supports the use of Hetzner baremetal servers (Hetzner Robot). A second guide focusing on this feature is in the works, but if it hasn't been published by the time you read this, you can visit the [CAPH docs](https://syself.com/docs/caph/topics/baremetal/introduction) if you're interested in managing Hetzner baremetal servers with Cluster API.
## Conclusion
With Cluster API Provider Hetzner, you can create and manage highly available Kubernetes clusters in Hetzner, in a declarative and cloud-native way. This enables you to operate and scale your clusters seamlessly. A single Cluster API management cluster can handle approximately one hundred clusters, depending on the number of nodes.
In this tutorial, you created your own highly available Kubernetes cluster on Hetzner, with a fully managed lifecycle. As you continue to work with Kubernetes and the Cluster API Provider Hetzner, you can explore additional features and configuration options to optimize your cluster management, like:
- Implementing custom node images and configurations tailored to your specific workloads
- Integrating with other Kubernetes tools and add-ons such as a CNI, metric-server, konnectivity, etc
- Increase the reliability of your cluster with backups, monitoring and alerting
If you have any questions or feedback, please write a comment! | lucasrattz |
1,925,585 | My opinion about backend. | It is very often to use langauges like ruby, python or javascript for the backend in opensource... | 0 | 2024-07-16T14:41:46 | https://dev.to/okerew/my-opinion-about-backend-c4j | backend, backenddevelopment, javascript, fullstack | It is very often to use langauges like ruby, python or javascript for the backend in opensource projects which I don't understaund. As these langauges are limited the more features you need to implement and the more users you have the harder it gets. This is why for most commercial backend services you will use things like go, java, rust or php ( this is moslty to mantain existing projects ).
It might seem tempting to firstly implement it the easier way, but if you do this in go which is a very easy langauge with the power of C and a garbage collector it will make your life easier. | okerew |
1,925,586 | Why['1','5','11'].map(parseInt) returns [1, NaN, 3] in Javascript | In JavaScript, the behavior of ['1', '5', '11'].map(parseInt) can be perplexing. To understand this,... | 0 | 2024-07-16T14:44:58 | https://dev.to/safdarali/why1511mapparseint-returns-1-nan-3-in-javascript-2mhm | webdev, javascript, beginners, programming | In JavaScript, the behavior of **['1', '5', '11'].map(parseInt)** can be perplexing. To understand this, let's dive into how **map **and **parseInt **interact.
## The map Function
The **map** function creates a new array by applying a provided function to each element in the array. It passes three arguments to the callback function: the element, the index, and the entire array.
## The parseInt Function
The **parseInt** function parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems). Its signature is **parseInt(string, radix)**.
## The Interaction
When using parseInt within map, the map function inadvertently passes the index of the element as the second argument to parseInt. This causes unexpected behavior:
- For the first element '1' (index 0), parseInt('1', 0) is called. The 0 radix means the base is guessed based on the string's format, defaulting to 10. Result: 1.
- For the second element '5' (index 1), parseInt('5', 1) is called. But 1 is not a valid radix, so the result is NaN.
- For the third element '11' (index 2), parseInt('11', 2) is called. Here, 2 means binary. The valid binary digits are 1, resulting in 3 (since 1*2^1 + 1*2^0 = 3).
## The Solution
To ensure **parseInt** only receives the element, you can use an arrow function or another method to explicitly handle the conversion:
```
console.log(['1', '5', '11'].map(num => parseInt(num))); // [1, 5, 11]
```
Or use the **Number** constructor:
```
console.log(['1', '5', '11'].map(Number)); // [1, 5, 11]
```
Understanding this interaction highlights the importance of knowing how JavaScript functions interact and ensuring the correct parameters are passed to avoid unexpected results.
That's all for today.
And also, share your favourite web dev resources to help the beginners here!
Connect with me:@ [LinkedIn ](https://www.linkedin.com/in/safdarali25/)and checkout my [Portfolio](https://safdarali.vercel.app/).
Explore my [YouTube ](https://www.youtube.com/@safdarali_?sub_confirmation=1)Channel! If you find it useful.
Please give my [GitHub ](https://github.com/Safdar-Ali-India) Projects a star ⭐️
Thanks for 25659! 🤗
| safdarali |
1,925,587 | Grid CSS | El Grid Layout de CSS es una poderosa herramienta para crear diseños bidimensionales en la web. A... | 0 | 2024-07-16T14:45:21 | https://dev.to/fernandomoyano/grid-css-1733 |
El Grid Layout de CSS es una poderosa herramienta para crear diseños bidimensionales en la web. A continuación, se presentan las propiedades correspondientes al contenedor y los elementos hijos, junto con ejemplos.
#### Propiedades del Contenedor (Grid Container)
1. **`display: grid`**
- Define un elemento como contenedor de grid.
- **Ejemplo:**
```css
.grid-container {
display: grid;
}
```
2. **`grid-template-columns`**
- Define las columnas del grid.
- **Ejemplo:**
```css
.grid-container {
grid-template-columns: repeat(3, 1fr); /* Tres columnas iguales */
}
```
3. **`grid-template-rows`**
- Define las filas del grid.
- **Ejemplo:**
```css
.grid-container {
grid-template-rows: 100px 200px; /* Dos filas, la primera de 100px y la segunda de 200px */
}
```
4. **`gap`**
- Define el espacio entre las filas y columnas.
- **Ejemplo:**
```css
.grid-container {
gap: 10px; /* Espacio de 10px entre filas y columnas */
}
```
5. **`grid-template-areas`**
- Define áreas del grid.
- **Ejemplo:**
```css
.grid-container {
grid-template-areas:
'header header header'
'main main sidebar'
'footer footer footer';
}
```
6. **`grid-auto-rows`**
- Define el tamaño de las filas implícitas (aquellas no definidas explícitamente en `grid-template-rows`).
- **Ejemplo:**
```css
.grid-container {
grid-auto-rows: 150px; /* Todas las filas implícitas tendrán una altura de 150px */
}
```
7. **`grid-auto-columns`**
- Define el tamaño de las columnas implícitas.
- **Ejemplo:**
```css
.grid-container {
grid-auto-columns: 150px; /* Todas las columnas implícitas tendrán un ancho de 150px */
}
```
8. **`grid-auto-flow`**
- Controla cómo se colocan automáticamente los elementos en el grid.
- Valores posibles: `row`, `column`, `row dense`, `column dense`.
- **Ejemplo:**
```css
.grid-container {
grid-auto-flow: row; /* Los elementos se colocarán en filas */
}
```
9. **`justify-items`**
- Alinea el contenido de los elementos hijos a lo largo del eje horizontal.
- Valores posibles: `start`, `end`, `center`, `stretch`.
- **Ejemplo:**
```css
.grid-container {
justify-items: center; /* Alinea el contenido de los elementos hijos en el centro horizontalmente */
}
```
10. **`align-items`**
- Alinea el contenido de los elementos hijos a lo largo del eje vertical.
- Valores posibles: `start`, `end`, `center`, `stretch`.
- **Ejemplo:**
```css
.grid-container {
align-items: center; /* Alinea el contenido de los elementos hijos en el centro verticalmente */
}
```
11. **`justify-content`**
- Alinea la totalidad del grid a lo largo del eje horizontal.
- Valores posibles: `start`, `end`, `center`, `space-between`, `space-around`, `space-evenly`.
- **Ejemplo:**
```css
.grid-container {
justify-content: space-between; /* Distribuye el espacio entre los elementos del grid */
}
```
12. **`align-content`**
- Alinea la totalidad del grid a lo largo del eje vertical.
- Valores posibles: `start`, `end`, `center`, `space-between`, `space-around` `space-evenly`, `stretch`.
- **Ejemplo:**
```css
.grid-container {
align-content: center; /* Alinea el contenido del grid en el centro verticalmente */
}
```
#### Propiedades de los Hijos (Grid Ítems)
1. **`grid-column`**
- Define el inicio y el fin de una columna.
- **Ejemplo:**
```css
.grid-item {
grid-column: 1 / 3; /* Ocupa desde la columna 1 hasta la 3 */
}
```
2. **`grid-row`**
- Define el inicio y el fin de una fila.
- **Ejemplo:**
```css
.grid-item {
grid-row: 1 / 2; /* Ocupa desde la fila 1 hasta la 2 */
}
```
3. **`grid-area`**
- Asigna el área definida en `grid-template-areas`.
- **Ejemplo:**
```css
.header {
grid-area: header;
}
.main {
grid-area: main;
}
.sidebar {
grid-area: sidebar;
}
.footer {
grid-area: footer;
}
```
4. **`grid-column-start`**
- Define la línea de inicio de una columna.
- **Ejemplo:**
```css
.grid-item {
grid-column-start: 2; /* El elemento comenzará en la columna 2 */
}
```
5. **`grid-column-end`**
- Define la línea de fin de una columna.
- **Ejemplo:**
```css
.grid-item {
grid-column-end: 4; /* El elemento terminará en la columna 4 */
}
```
6. **`grid-row-start`**
- Define la línea de inicio de una fila.
- **Ejemplo:**
```css
.grid-item {
grid-row-start: 1; /* El elemento comenzará en la fila 1 */
}
```
7. **`grid-row-end`**
- Define la línea de fin de una fila.
- **Ejemplo:**
```css
.grid-item {
grid-row-end: 3; /* El elemento terminará en la fila 3 */
}
```
8. **`justify-self`**
- Alinea el contenido de un solo elemento a lo largo del eje horizontal.
- Valores posibles: `start`, `end`, `center`, `stretch`.
- **Ejemplo:**
```css
.grid-item {
justify-self: end; /* Alinea el contenido del elemento al final horizontalmente */
}
```
9. **`align-self`**
- Alinea el contenido de un solo elemento a lo largo del eje vertical.
- Valores posibles: `start`, `end`, `center`, `stretch`.
- **Ejemplo:**
```css
.grid-item {
align-self: center; /* Alinea el contenido del elemento en el centro verticalmente */
}
```
#### Ejemplo Completo con Más Propiedades de Grid Layout
**HTML**
```HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Grid Layout Example</title>
</head>
<body>
<div class="grid-container">
<div class="header">Header</div>
<div class="main">Main Content</div>
<div class="sidebar">Sidebar</div>
<div class="footer">Footer</div>
<div class="grid-item1">Item 1</div>
<div class="grid-item2">Item 2</div>
</div>
</body>
</html>
```
**CSS**
```css
<style>
.grid-container {
display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: 100px 200px 100px;
gap: 10px;
grid-auto-rows: 150px;
grid-auto-columns: 150px;
grid-auto-flow: row dense;
justify-items: center;
align-items: center;
justify-content: space-between;
align-content: center;
grid-template-areas:
'header header header'
'main main sidebar'
'footer footer footer';
}
.header {
grid-area: header;
background-color: #f1c40f;
}
.main {
grid-area: main;
background-color: #1abc9c;
}
.sidebar {
grid-area: sidebar;
background-color: #e74c3c;
}
.footer {
grid-area: footer;
background-color: #3498db;
}
.grid-item1 {
grid-column-start: 1;
grid-column-end: 3;
grid-row-start: 1;
grid-row-end: 2;
justify-self: center;
align-self: center;
}
.grid-item2 {
grid-area: 2 / 2 / 4 / 4;
justify-self: start;
align-self: end;
}
</style>
```
| fernandomoyano | |
1,925,588 | Mastering C# Switch Expressions and Pattern Matching: A Practical Guide | Introduction As seasoned C# developers, we've all used switch statements to make decisions based on... | 0 | 2024-07-16T15:10:45 | https://dev.to/waelhabbal/mastering-c-switch-expressions-and-pattern-matching-a-practical-guide-5dg9 | csharp, cleancode, patternmatching, realworlddev | **Introduction**
As seasoned C# developers, we've all used `switch` statements to make decisions based on values. C# 7.0 introduced pattern matching, and C# 12 took it a step further with switch expressions. This powerful combination enhances code readability, maintainability, and expressiveness, especially when dealing with complex logic and diverse input types.
**Demystifying Switch Expressions and Pattern Matching**
**Switch Expressions**
Switch expressions are a concise and expressive alternative to traditional `switch` statements. They allow you to return a value directly from a case, making them ideal for scenarios where you need a result based on the matched pattern. Here's the basic syntax:
```csharp
expression switch
{
pattern1 => value1,
pattern2 => value2,
// ... more patterns
_ => default // Optional default case
}
```
- `expression`: The value to be matched against the patterns.
- `pattern`: A pattern that specifies the conditions for a case to match.
- `value`: The value to return if the `expression` matches the `pattern`.
- `_`: The discard pattern, used as a catch-all for unmatched cases.
- `default`: An optional default case that executes if no pattern matches.
**Pattern Matching**
Pattern matching is the core concept at play here. It allows you to compare an expression against different patterns and take corresponding actions. C# supports a rich set of patterns, including:
- **Constant Pattern:** Matches against a specific constant value.
```csharp
dayOfWeek switch
{
DayOfWeek.Monday => "Start of the week blues",
DayOfWeek.Friday => "TGIF!",
// ... other weekdays
}
```
- **Type Pattern:** Matches against a specific type.
```csharp
object obj = "...";
if (obj is string str)
{
Console.WriteLine($"String value: {str}");
}
else if (obj is int i)
{
Console.WriteLine($"Integer value: {i}");
}
```
- **Relational Pattern:** Matches based on a relational operator (`<`, `>`, `<=`, `>=`, `==`, `!=`).
```csharp
int age = 25;
switch (age)
{
case < 18:
Console.WriteLine("Not eligible to vote");
break;
case >= 18:
Console.WriteLine("Eligible to vote");
break;
}
```
- **Property Pattern:** Matches based on the value of a property.
```csharp
class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
Person person = new Person { Name = "Alice", Age = 30 };
switch (person)
{
case Person p when p.Age >= 18:
Console.WriteLine($"{p.Name} is an adult");
break;
default:
Console.WriteLine($"{person.Name} is not an adult");
break;
}
```
- **Discard Pattern (`_`):** Captures a value but doesn't use it (useful for cases where the value isn't needed).
```csharp
switch (Console.ReadLine())
{
case _: // Handle any input
Console.WriteLine("Input received");
break;
}
```
- **Logical AND (`&`), OR (`|`), and NOT (`!`):** Combine patterns for complex matching.
```csharp
string input = "...";
switch (input)
{
case string s when s.StartsWith("Hello") && s.EndsWith("World"):
Console.WriteLine("Greeting received");
break;
case string s when s.Length > 10 | s.Contains("!"):
Console.WriteLine("Long or emphatic input");
break;
}
```
**Real-World Use Cases of C# Switch Expressions and Pattern Matching**
In the realm of practical C# development, switch expressions and pattern matching shine in various scenarios. Let's delve into some compelling examples:
**1. Data Validation and Processing**
- **Robust Input Handling:** When dealing with user input, you can leverage switch expressions to ensure data integrity. Validate input types and extract meaningful values:
```csharp
string input = Console.ReadLine();
switch (input)
{
case int i:
Console.WriteLine($"Integer value: {i}");
// Perform integer-specific operations
break;
case double d:
Console.WriteLine($"Double value: {d}");
// Perform double-specific operations
break;
case string s when s.Length > 0: // Handle non-empty strings
Console.WriteLine($"String value: {s}");
// Perform string-specific operations
break;
default:
Console.WriteLine("Invalid input. Please enter a number or a string.");
break;
}
```
- **Complex Data Structures:** When working with complex data structures like `enum` or custom types, pattern matching allows for concise and readable validation and processing:
```csharp
enum FileOperation
{
Create,
Read,
Update,
Delete
}
FileOperation operation = GetFileOperationFromUser(); // Function to get user input
switch (operation)
{
case FileOperation.Create:
CreateFile();
break;
case FileOperation.Read:
ReadFile();
break;
case FileOperation.Update: when CanUpdateFile(): // Conditional update
UpdateFile();
break;
case FileOperation.Delete:
DeleteFile();
break;
default:
Console.WriteLine("Invalid operation selected.");
break;
}
```
**2. State Management and Flow Control**
- **Encapsulated State Machines:** Simplify state management logic by utilizing switch expressions for transitions based on events or conditions:
```csharp
enum GameState
{
StartMenu,
Playing,
GameOver
}
GameState currentState = GameState.StartMenu;
while (true)
{
GameState nextState = currentState;
switch (currentState)
{
case GameState.StartMenu:
if (HandleStartMenuInput())
{
nextState = GameState.Playing;
}
break;
case GameState.Playing:
if (IsGameOver())
{
nextState = GameState.GameOver;
}
// ... handle game logic
break;
case GameState.GameOver:
if (HandleGameOverInput())
{
nextState = GameState.StartMenu; // Or other options
}
break;
}
currentState = nextState;
}
```
**3. Configuration Parsing and Deserialization**
- **Flexible Configuration Handling:** When parsing configuration files or deserializing data, switch expressions offer a clean way to handle different data formats or missing values:
```csharp
IConfiguration config = LoadConfiguration();
switch (config)
{
case IConfigurationSection section:
string value = section.Value; // Access configuration values
break;
case null:
Console.WriteLine("Configuration not found.");
break;
default:
Console.WriteLine("Invalid configuration format.");
break;
}
```
By effectively combining switch expressions and pattern matching, you can create more readable, maintainable, and expressive code in various C# applications. | waelhabbal |
1,925,589 | Applying Evidence-Based Management (EBM) in Your Organization | At Leading EDJE, we're on a relentless quest to enhance and measure the impact of our work.... | 0 | 2024-07-16T14:47:40 | https://dev.to/leading-edje/applying-evidence-based-management-ebm-in-your-organization-9bk | ebm, scrum, agile, dora | At Leading EDJE, we're on a relentless quest to enhance and measure the impact of our work. Harnessing the transformative power of Evidence-Based Management (EBM), a framework designed to complement your Agile practice, can revolutionize your approach to data-driven decision-making, empowering your teams to deliver value and achieve their goals.
**The Foundation of EBM**
EBM is deeply rooted in measurement — it's about translating data into actionable insights that align with your company's strategic goals. It's not just about doing work; it's about ensuring the work we do matters to the end customer. This approach can be particularly powerful in agile environments, like Scrum, but its principles are universally applicable.
**Building an EBM Dashboard**
The EBM Dashboard is a central tool in applying EBM. It visualizes your team's progress against key goals and measures. Here’s how you can construct an effective dashboard:
Start with Goals: Define Strategic, Intermediate, and Immediate Tactical Goals.
- Strategic Goals: Long-term, big-picture objectives.
- Intermediate Goals: Support the strategic goals, often aligning with or same as product goals.
- Immediate Tactical Goals: The daily work driving towards your sprint goals.
Key Value Areas (KVAs): These are the lenses through which you view value:
- Current Value: The value you're delivering now.
- Unrealized Value: Potential value that could be delivered.
- Ability to Innovate: How effectively you can introduce new capabilities.
- Time to Market: Ho
w quickly you can deliver new capabilities.
Key Value Measures (KVMs): These are the metrics you track under each KVA. They should be informative, actionable, and relevant to your goals.
**Example Dashboard**
*from Unlocking Business Agility with Evidence Based Management
**Using the Dashboard**
Once you've built your dashboard, it's pivotal to use it effectively:
- Review Regularly: Update and review the dashboard in line with your sprint cadence.
- Data-Driven Decisions: Use the dashboard to make informed decisions and adjust your approach when necessary.
- Team Ownership: Ideally, the Agile team should collectively own and contribute to the dashboard.
**The Role of Experimentation**
Experimentation is integral to EBM and Scrum. Each sprint, release, or iteration, depending on your agile methodology, can be seen as an experiment to test hypotheses. By aligning your sprint goals with your hypothesis, you ensure each sprint is a step towards validating your approach and delivering value.
**Applying EBM Across Various Scenarios**
Whether you're on a Scrum team or not, EBM principles can be adapted to fit your work context. Here are some scenarios of how EBM could help:
- No Clear Goals: If your team doesn’t have goals, begin by asking questions to identify goals at the company or project level.
- Solo Contributors: Measure individual contributions and look for ways to connect them to larger goals.
- Non-product Development Teams: Even if you’re not building a product, use EBM to focus on organizational capabilities (like Time to Market) and how your work indirectly add
s value.
**Engage with EBM**
Implementing EBM is not about rigidly following a set formula; it's about thinking critically about what to measure and why. It involves continuous learning, adaptation, a willingness to ask the hard questions and have the hard conversations.
As we move forward, it's clear that EBM will become an increasingly important part of how effective teams work. By providing feedback and sharing our experiences, we can shape how EBM is implemented across our organizations.
EBM is a journey, not a destination. By adopting its principles and actively engaging with the process, we can all contribute to a culture of continuous improvement and evidence-based decision-making.
| julieyakunich |
1,925,592 | Mastering Middleware in Laravel: An In-Depth Guide | As I navigated the labyrinth of web development, one feature consistently illuminated my path:... | 0 | 2024-07-16T14:50:59 | https://dev.to/cyrilmuchemi/mastering-middleware-in-laravel-an-in-depth-guide-4bde | webdev, laravel, php, beginners | As I navigated the labyrinth of web development, one feature consistently illuminated my path: Laravel's middleware system. Middleware doesn't just filter requests; it transforms applications, ensuring security, performance, and seamless user experiences. Whether you're working on authentication, logging, or cross-cutting concerns, middleware can help you manage it elegantly.
**Understanding Middleware**
Middleware acts as a bridge between a _request_ and a _response_, playing a pivotal role in the request-response lifecycle in a web application. First, let's break down what a request and response are. A request is made by a client (typically a user's browser) to a server asking for specific resources such as web pages, data, or other services.
This request carries essential information, including HTTP methods (GET, POST, ...), headers, and potentially a body containing data. Once the server receives this request, it processes the necessary information and generates a response.
A response is the server's answer to the client's request. It contains the status of the request (e.g., success, failure), headers, and a body that often includes HTML, JSON, or other data formats that the client uses to render a web page or execute further actions.
Middleware comes into play as an intermediary that can inspect, modify, or even halt these requests and responses. It operates before the request reaches the core application logic and before the response is sent back to the client.
We need middleware because it allows for modular and reusable code to handle cross-cutting concerns like authentication, logging, and data manipulation without cluttering the main application logic. For instance, middleware can ensure that only authenticated users can access certain routes, log each request for debugging purposes, or transform request data before it reaches the controller.
**Creating Middleware**
Creating middleware in Laravel is straightforward. You can generate a new middleware using the _Artisan command_.
```
php artisan make:middleware CheckAge
```
This command will create a new **CheckAge** middleware file in the **app/Http/Middleware** directory. Inside this file, you can define the logic that should be executed for each request.
```php
<?php
namespace App\Http\Middleware;
use Closure;
class CheckAge
{
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
if ($request->age <= 200) {
return redirect('home');
}
return $next($request);
}
}
```
In this example, the middleware checks the **age** attribute in the request. If the age is less than or equal to 200, it redirects the user to the **home** route. Otherwise, it allows the request to proceed.
**Registering Middleware**
Once you have created your middleware, you need to register it in the **kernel**. The kernel is the core of the Laravel application that manages the entire lifecycle of an HTTP request. It acts as a central hub that orchestrates the flow of requests through various middleware layers before they reach the application's routes and controllers.
There are two ways you can register middleware inside your **app/Http/Kernel.php** file:
1. **Global Middleware:** These middlewares run during every request to
your application.
2. **Route Middleware:** These middlewares can be assigned to specific
routes.
To register our **CheckAge** middleware as route middleware, add it to the **$routeMiddleware** array in the kernel:
```php
protected $routeMiddleware = [
// Other middleware
'checkAge' => \App\Http\Middleware\CheckAge::class,
];
```
Now, you can apply this middleware to your routes or route groups:
```php
Route::get('admin', function () {
// Only accessible if age > 200
})->middleware('checkAge');
```
**Advanced Middleware Techniques**
Middleware in Laravel is not limited to simple checks. Here are some advanced techniques to make the most out of middleware:
1. **Parameterizing Middleware**
Middleware can accept additional parameters. This is useful for scenarios where the behavior of the middleware might change based on parameters.
```php
public function handle($request, Closure $next, $role)
{
if (! $request->user()->hasRole($role)) {
// Redirect or abort
}
return $next($request);
}
```
2. **Grouping Middleware**
You can group multiple middleware under a single key, which helps apply a set of middleware to many routes.
```php
protected $middlewareGroups = [
'web' => [
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
// more middleware
],
];
```
Applying middleware group to routes:
```php
Route::middleware(['web'])->group(function () {
Route::get('/', function () {
// Uses 'web' middleware group
});
Route::get('dashboard', function () {
// Uses 'web' middleware group
});
});
```
3. **Terminating Middleware**
Middleware can define a **terminate** method that will be called once the response has been sent to the browser. This is particularly useful for tasks like logging or analytics.
```php
public function terminate($request, $response)
{
// Log request and response
}
```
**Conclusion**
By mastering middleware, you can create applications that are not only secure and performant but also maintainable and scalable. Whether you are handling authentication, logging, or even fine-tuning your application's behavior with custom parameters, middleware provides a clean and elegant solution.
Embrace the power of middleware in your Laravel projects and see how it transforms the way you manage cross-cutting concerns. Happy coding!
| cyrilmuchemi |
1,925,595 | Vite.js: собираем приложение для production безопасно | В мире веб-разработки инструменты для сборки приложений играют ключевую роль, помогая разработчикам... | 0 | 2024-07-17T16:49:40 | https://dev.to/budarin/vitejs-sobiraiem-polnoie-prilozhieniie-biezopasno-4ljm | vite, tooling | В мире веб-разработки инструменты для сборки приложений играют ключевую роль, помогая разработчикам оптимизировать и упрощать процесс разработки. Одним из таких современных инструментов является Vite.js, который стремительно завоевывает популярность среди фронтенд-разработчиков. В этой статье мы рассмотрим, почему Vite.js стал отличной альтернативой Webpack и как он может упростить жизнь как новичкам, так и опытным разработчикам.
## Vite.js: Новый инструмент для сборки приложений
Vite.js — это современный инструмент для разработки фронтенд-приложений, созданный Эваном Ю, автором Vue.js. В отличие от традиционных инструментов сборки, таких как Webpack, Vite предлагает совершенно иной подход, основанный на современных браузерных возможностях и быстрых сборках благодаря использованию ES-модулей и мощного компилятора esbuild.
## Быстрее благодаря ES-модулям
Одним из основных преимуществ Vite является его способность использовать нативную поддержку ES-модулей в браузере во время разработки. Это означает, что при запуске сервера разработки Vite не нужно собирать весь проект целиком, а только обрабатывает и отдает файлы, которые действительно изменились. Это значительно ускоряет время запуска проекта и обновления страниц.
## Использование esbuild
Для более быстрой трансформации и минификации кода Vite использует esbuild — невероятно быстрый компилятор, написанный на Go. Благодаря esbuild, Vite обеспечивает молниеносную сборку даже для крупных проектов, что особенно заметно при переходе от разработки к production-сборке.
## Почему Vite
Хотя Webpack долгое время был стандартом в мире сборщиков JavaScript, но Vite предлагает ряд преимуществ, которые делают его привлекательным выбором для многих проектов:
**Скорость**: Благодаря своей архитектуре, Vite обеспечивает более быстрый запуск и перезагрузку проекта.
**Простота настройки**: Vite предлагает "из коробки" поддержку многих популярных фреймворков, таких как Vue.js, React и Preact, минимизируя количество необходимой настройки.
**Модульная архитектура**: В Vite легко добавлять и настраивать плагины благодаря использованию Rollup под капотом для production-сборки.
Идеально для новичков
Одним из главных преимуществ Vite является его простота в использовании. Для начинающих разработчиков Vite предлагает минимальную конфигурацию и готовность к работе практически сразу после установки. Вам не нужно беспокоиться о сложных конфигурационных файлах или тонкой настройке различных плагинов — все работает "из коробки".
## Шаг влево, шаг вправо ...
Однако, как и любой инструмент, Vite не является универсальным решением для всех сценариев. Когда ваши требования выходят за рамки стандартной конфигурации, вам может понадобиться более глубокое понимание Vite и связанных с ним технологий, таких как esbuild и Rollup.
По-умолчанию из коробки Vite предлагает вам собирать приложение для production не учитывая изменения в JavaScript в разных версиях браузеров и считать, что код собирается для браузеров, которые поддерживают модули:
- Chrome >=87
- Firefox >=78
- Safari >=14
- Edge >=88
В документации сказано:
> Note that by default, Vite only handles syntax transforms and does not cover polyfills. You can check out https://cdnjs.cloudflare.com/polyfill/ which automatically generates polyfill bundles based on the user's browser UserAgent string.
Vite прямо указывает вам, что он просто преобразует модули в формат, понимаемый браузером, но он ничего не знает и не делает для его поддержки. Те, кто хочет, чтобы его код выполняли все браузеры, даже если его поддержка реализована не во всех из них - идите за полифилами на CDN одного из провайдеров "добра"!
И это после того, как только недавно отгремел скандал с покупкой сервиса для раздачи полифилов китайцами, которые стали вместе с полифилами вам в код вставлять рекламу! И слава Богу что только рекламу вставляли!
В общем стандартная сборка кода для приложения в Vite никуда не годиться и нам нужно ее исправить!
Нам нужно, что бы все необходимые полифилы были применены на этапе сборки приложения без необходимости инжектировать нам на сайт какой бы то ни было корпорации "добра"!
Данная проблема решается при помощи `@babel/preset-env`. Этот пресет во время сборки анализирует исходный код и если обнаруживает, что используется функциональность которая еще не реализована в конкретной версии браузеров из вашего списка - он добавляет в результирующий код полифил для реализации данной функциональности.
Для начала нужно добавить в проект пакеты:
`npm add -D @babel/preset-env core-js`
и затем создать конфиг Vite (если он не был создан) или модифицировать секцию plugins следующим образом:
```js
// vite.config.js
import { defineConfig } from "vite";
import { devDependencies } from "./package.json";
return defineConfig(({ mode }) => {
const isDev = mode === "development";
return {
plugins: isDev
? [ react() ]
: [
react({
babel: {
presets: [
[
"@babel/preset-env",
{
modules: false,
useBuiltIns: "entry",
corejs: {
version: devDependencies["core-js"],
},
},
],
],
},
}),
],
};
});
```
Теперь после выполнения команды `vite build` ваша сборка будет содержать полный код для выполнения в любом целевом браузере и без уязвимостей, связанных с инъекцией кода 3-й стороны!
**Примечание**: в статье рассматривается сборка кода только для браузеров, которые поддерживают модули. Для сборки кода, для браузеров не поддерживающих модули, используйте плагин `legacy` (там уже используется `@babel/preset-env`)
| budarin |
1,925,596 | Spring Security Oauth2 Password JPA Implementation | https://github.com/patternknife/spring-security-oauth2-password-jpa-implementation Complete... | 0 | 2024-07-16T14:54:57 | https://dev.to/andrewkangg/spring-security-oauth2-password-jpa-implementation-3k6d | springsecurity, springboot, security | https://github.com/patternknife/spring-security-oauth2-password-jpa-implementation
- Complete separation of the library (API) and the client for testing it
<dependency>
<groupId>io.github.patternknife.securityhelper.oauth2.api</groupId>
<artifactId>spring-security-oauth2-password-jpa-implementation</artifactId>
<version>2.4.0</version>
</dependency>
- Set up the same access & refresh token APIs on both /oauth2/token and on our controller layer such as /api/v1/traditional-oauth/token, both of which function same and have the same request & response payloads for success and errors.
- As you are aware, the API /oauth2/token is what "spring-authorization-server" provides.
- /api/v1/traditional-oauth/token is what this library implemented manually.
Success Payload
{
"access_token" : "Vd4x8D4lDg7VBFh...",
"token_type" : "Bearer",
"refresh_token" : "m3UgLrvPtXKdy7jiD...",
"expires_in" : 3469,
"scope" : "read write"
}
Error Payload
{
"timestamp": 1719470948370,
"message": "Couldn't find the client ID : client_admin", // Sensitive info such as being thrown from StackTraces
"details": "uri=/oauth2/token",
"userMessage": "Authentication failed. Please check your credentials.",
"userValidationMessage": null
}
- In the following error payload, the 'message' shouldn't be exposed to clients; instead, the 'userMessage' should be.
Authentication management based on a combination of username, client ID, and App-Token
- What is an App-Token? An App-Token is a new access token generated each time the same account logs in. If the token values are the same, the same access token is shared.
- Separated UserDetails implementation for Admin and Customer roles as an example. (This can be extended as desired by implementing UserDetailsServiceFactory)
- Provide MySQL DDL, which consists of oauth_access_token, oauth_refresh_token and oauth_client_details, which is tables in Security 5. As I mean to migrate current security system to Security 6, I haven't changed them to the authorization table indicated in https://github.com/spring-projects/spring-authorization-server.
- Application of Spring Rest Docs | andrewkangg |
1,925,598 | User Account Verification Via Email - FastAPI Beyond CRUD (Part 18) | In this video, we explore integrating email support into our application using FastAPI-Mail. We start... | 0 | 2024-07-16T15:00:23 | https://dev.to/jod35/user-account-verification-via-email-fastapi-beyond-crud-part-18-15ib | fastapi, python, api, programming | In this video, we explore integrating email support into our application using FastAPI-Mail. We start by implementing email sending capabilities and proceed to verify user accounts. We also look at how we can securely pass data in URLs using the itsdangerous Python library.
{%youtube nodSaVS4BMY%} | jod35 |
1,925,599 | Best Practices in JavaScript Development | Best Practices in JavaScript Development JavaScript is one of the most widely used... | 0 | 2024-07-16T15:00:36 | https://codexdindia.blogspot.com/2024/07/best-practices-in-javascript-development.html | webdev, javascript, beginners, programming | # Best Practices in JavaScript Development
JavaScript is one of the most widely used programming languages, powering millions of websites and applications. To ensure that your JavaScript code is efficient, maintainable, and robust, it's essential to follow best practices. This article covers key best practices that every JavaScript developer should know.
> https://codexdindia.blogspot.com/2024/07/best-practices-in-javascript-development.html
{% youtube https://www.youtube.com/watch?v=5QlLpaLeoYI&t=8s %}
## 1. Code Organization and Structure
### Use Modular Code
- **Modules**: Break your code into reusable modules. This promotes code reuse and makes it easier to manage large codebases.
- **ES6 Modules**: Utilize ES6 modules (`import` and `export`) to split your code into separate files.
### Follow a Consistent Naming Convention
- **CamelCase**: Use camelCase for variable and function names (e.g., `myFunction`).
- **PascalCase**: Use PascalCase for class names (e.g., `MyClass`).
### Use Descriptive Variable and Function Names
- **Descriptive Names**: Choose meaningful and descriptive names for variables and functions to improve code readability.
- **Avoid Abbreviations**: Avoid using single letters or abbreviations that are not immediately clear.
## 2. Writing Clean and Readable Code
### Keep Functions Small
- **Single Responsibility Principle**: Each function should have a single responsibility. If a function does too much, split it into smaller functions.
### Use Arrow Functions
- **Arrow Functions**: Use arrow functions (`=>`) for concise function expressions, especially for callbacks.
```javascript
const add = (a, b) => a + b;
```
### Avoid Nested Code
- **Flat Code**: Avoid deep nesting of functions and control structures. Flatten your code to improve readability.
```javascript
// Avoid
if (condition) {
if (anotherCondition) {
// code
}
}
// Preferred
if (condition && anotherCondition) {
// code
}
```
## 3. Error Handling
### Use `try...catch` for Error Handling
- **Error Handling**: Use `try...catch` blocks to handle errors gracefully.
```javascript
try {
// code that may throw an error
} catch (error) {
console.error('An error occurred:', error);
}
```
### Avoid Silent Errors
- **Throw Errors**: Throw meaningful errors instead of silently failing.
```javascript
if (!data) {
throw new Error('Data is required');
}
```
## 4. Performance Optimization
### Use `let` and `const`
- **Block Scoping**: Use `let` and `const` instead of `var` to ensure block-scoped variables.
```javascript
const pi = 3.14;
let radius = 5;
```
### Minimize DOM Manipulation
- **Batch DOM Updates**: Minimize the number of DOM manipulations by batching updates or using a virtual DOM library like React.
### Debounce and Throttle
- **Control Execution**: Use debounce and throttle techniques to control the frequency of function execution, especially for event handlers.
```javascript
function debounce(func, delay) {
let timeout;
return function (...args) {
clearTimeout(timeout);
timeout = setTimeout(() => func.apply(this, args), delay);
};
}
```
## 5. Security Best Practices
### Avoid `eval()`
- **No `eval()`**: Avoid using `eval()` as it can execute arbitrary code and expose security vulnerabilities.
### Sanitize User Input
- **Input Validation**: Always validate and sanitize user input to prevent injection attacks.
```javascript
function sanitizeInput(input) {
return input.replace(/</g, '<').replace(/>/g, '>');
}
```
## 6. Documentation and Comments
### Use JSDoc for Documentation
- **JSDoc**: Use JSDoc to document your functions, parameters, and return values.
```javascript
/**
* Adds two numbers.
* @param {number} a - The first number.
* @param {number} b - The second number.
* @return {number} The sum of the two numbers.
*/
function add(a, b) {
return a + b;
}
```
### Write Meaningful Comments
- **Comment Purpose**: Write comments to explain why a particular piece of code exists, not what it does.
```javascript
// Calculate the total price including tax
const totalPrice = price * 1.2;
```
## 7. Testing and Debugging
### Write Unit Tests
- **Automated Testing**: Write unit tests using frameworks like Jest or Mocha to ensure your code works as expected.
### Use a Linter
- **ESLint**: Use ESLint to catch syntax and style issues early.
### Debugging Tools
- **Developer Tools**: Utilize browser developer tools for debugging and profiling your code.
## Conclusion
Following these best practices will help you write clean, efficient, and maintainable JavaScript code. Whether you're a beginner or an experienced developer, adhering to these guidelines will improve the quality of your code and make development more enjoyable.
By integrating these best practices into your workflow, you can ensure that your JavaScript applications are robust, scalable, and easy to maintain.
---
This article provides a solid foundation for best practices in JavaScript development. Feel free to expand on each section with more examples and explanations based on your specific needs and experiences. | sh20raj |
1,925,601 | Mastering ingress-nginx | Advanced Optimization Techniques for High-Performance Kubernetes Ingress As a seasoned... | 0 | 2024-07-16T15:01:19 | https://dev.to/target-ops/mastering-ingress-nginx-36d7 | devops, nginx, tutorial | ### Advanced Optimization Techniques for High-Performance Kubernetes Ingress
As a seasoned DevOps engineer with 15 years of experience, I've seen the evolution of ingress controllers in Kubernetes. Today, we'll dive deep into optimizing ingress-nginx, one of the most popular ingress controllers in the Kubernetes ecosystem.
## 1. Fine-tuning Worker Processes and Connections
One of the first areas to optimize is the NGINX worker configuration. By default, ingress-nginx uses auto-detection, but for high-traffic environments, manual tuning can yield better results.
```yaml
controller:
config:
worker-processes: "8"
max-worker-connections: "65536"
```
Adjust these values based on your server's CPU cores and expected concurrent connections.
## 2. Leveraging HTTP/2 and TLS 1.3
Enable HTTP/2 and TLS 1.3 to improve connection efficiency and security:
```yaml
controller:
config:
use-http2: "true"
ssl-protocols: "TLSv1.2 TLSv1.3"
```
## 3. Optimizing SSL/TLS
Implement OCSP stapling and adjust SSL buffer size:
```yaml
controller:
config:
ssl-buffer-size: "4k"
ssl-ocsp: "on"
```
## 4. Tuning Timeouts and Keepalive
Adjust timeouts and keepalive settings to balance between resource usage and client needs:
```yaml
controller:
config:
keep-alive: "75"
keep-alive-requests: "100"
upstream-keepalive-connections: "1000"
upstream-keepalive-timeout: "60"
client-header-timeout: "60s"
client-body-timeout: "60s"
```
## 5. Implementing Caching and Compression
Enable and configure caching and compression for improved performance:
```yaml
controller:
config:
use-gzip: "true"
gzip-level: "6"
gzip-types: "application/json application/x-javascript text/css text/javascript"
proxy-cache-path: "/tmp/nginx-cache levels=1:2 keys_zone=my_cache:10m max_size=10g inactive=60m use_temp_path=off"
```
Then, in your Ingress resource:
```yaml
annotations:
nginx.ingress.kubernetes.io/proxy-cache: "my_cache"
nginx.ingress.kubernetes.io/proxy-cache-valid: "200 60m"
```
## 6. Implementing Rate Limiting
Protect your services with intelligent rate limiting:
```yaml
annotations:
nginx.ingress.kubernetes.io/limit-rps: "10"
nginx.ingress.kubernetes.io/limit-rpm: "100"
```
## 7. Optimizing Backend Connections
Fine-tune how ingress-nginx connects to your backends:
```yaml
controller:
config:
upstream-keepalive-connections: "1000"
upstream-keepalive-timeout: "60"
upstream-keepalive-requests: "1000"
```
## 8. Implementing Custom Error Pages
Enhance user experience with custom error pages:
```yaml
controller:
config:
custom-http-errors: "404,503"
defaultBackendService: "default/custom-error-pages-service"
```
## 9. Leveraging Lua for Advanced Functionality
ingress-nginx supports Lua scripting for custom logic. Here's an example of using Lua to add custom headers:
```yaml
controller:
config:
load-balance: "ewma"
lua-shared-dicts: "configuration_data:5M"
extraVolumeMounts:
- name: lua-scripts
mountPath: /etc/nginx/lua
extraVolumes:
- name: lua-scripts
configMap:
name: lua-scripts
```
Then, create a ConfigMap with your Lua script:
```yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: lua-scripts
data:
custom_headers.lua: |
local headers = ngx.req.get_headers()
ngx.header["X-Custom-Header"] = "ingress-nginx"
```
## 10. Implementing Canary Deployments
Use ingress-nginx's built-in canary deployment feature:
```yaml
annotations:
nginx.ingress.kubernetes.io/canary: "true"
nginx.ingress.kubernetes.io/canary-weight: "30"
```
## 11. Monitoring and Metrics
Enable Prometheus metrics for comprehensive monitoring:
```yaml
controller:
metrics:
enabled: true
serviceMonitor:
enabled: true
```
## Conclusion
Optimizing ingress-nginx is a continuous process that requires understanding your specific traffic patterns and application requirements. The configurations provided here serve as a starting point for high-performance setups, but always test thoroughly in your environment.
Remember, while these optimizations can significantly improve performance, they may also increase resource usage. Monitor your ingress controller closely after implementing changes and be prepared to fine-tune based on real-world results.
By leveraging these advanced techniques, you can ensure your ingress-nginx setup is performant, secure, and ready to handle enterprise-level traffic with ease.
--- | ofir-haim |
1,925,602 | EDI Integration with QuickBooks and QuickBooks Online: 10 Powerful Benefits and Steps for Seamless Implementation | *EDI Integration with QuickBooks and QuickBooks Online: 10 Key Benefits and Steps for Seamless... | 0 | 2024-07-16T15:01:34 | https://dev.to/actionedi/edi-integration-with-quickbooks-and-quickbooks-online-10-powerful-benefits-and-steps-for-seamless-implementation-5gbg | **EDI Integration with QuickBooks and QuickBooks Online: 10 Key Benefits and Steps for Seamless Implementation
**
In the realm of small and medium-sized enterprises (SMEs), QuickBooks and QuickBooks Online have become go-to accounting solutions, thanks to their user-friendly interfaces and robust features. However, as businesses grow and transactions multiply, integrating Electronic Data Interchange (EDI) with QuickBooks becomes crucial. EDI automates and streamlines business communications, ensuring efficiency and accuracy in data exchanges with trading partners. This comprehensive guide explores the nuances of EDI integration with QuickBooks and QuickBooks Online, and emphasizes how ActionEDI can facilitate this process seamlessly.
Understanding EDI and Its Importance
Electronic Data Interchange (EDI) refers to the structured transmission of data between organizations electronically. It replaces paper-based documents such as purchase orders, invoices, and shipping notices with digital equivalents, ensuring faster, more accurate, and efficient transactions.
Benefits of EDI
1. Reduced Costs: EDI minimizes the need for paper, printing, and postage, resulting in significant cost savings.
2. Improved Accuracy: By eliminating manual data entry, EDI reduces errors and discrepancies.
3. Faster Processing: Electronic transactions are processed much faster than traditional methods, enhancing business agility.
4. Enhanced Security: EDI transactions are encrypted, ensuring data security and compliance with industry standards.
5. Streamlined Operations: EDI integrates seamlessly with existing business processes, streamlining operations and improving efficiency.
QuickBooks and QuickBooks Online: An Overview
QuickBooks and QuickBooks Online are widely used accounting software solutions designed to help businesses manage their finances. QuickBooks is a desktop-based solution, while QuickBooks Online is a cloud-based version that offers flexibility and accessibility from anywhere with an internet connection.
Key Features of QuickBooks
– Invoicing: Create and send invoices easily.
– Expense Tracking: Monitor and categorize expenses.
– Payroll Management: Manage employee payroll efficiently.
– Financial Reporting: Generate comprehensive financial reports.
– Inventory Management: Track inventory levels and manage orders.
Key Features of QuickBooks Online
– Cloud Accessibility: Access your accounts from anywhere, anytime.
– Automatic Backups: Data is automatically backed up in the cloud.
– Real-Time Collaboration: Multiple users can work on the same data simultaneously.
– Integration with Apps: Connect with various third-party apps for enhanced functionality.
EDI Integration with QuickBooks
Integrating EDI with QuickBooks involves connecting your QuickBooks system with an EDI solution to automate the exchange of business documents with your trading partners. This integration ensures that transactions are recorded accurately and in real-time within QuickBooks.
Steps for EDI Integration with QuickBooks
1. Choose an EDI Provider: Select a reliable EDI provider that supports QuickBooks integration, such as ActionEDI.
2. Set Up EDI Software: Install and configure the EDI software to interface with QuickBooks.
3. Map EDI Documents: Define the mapping between EDI documents and QuickBooks data fields to ensure accurate data translation.
4. Test the Integration: Conduct thorough testing to ensure the EDI integration works seamlessly with QuickBooks.
5. Go Live: Once testing is successful, go live with the EDI integration, enabling automated data exchanges.
**
Benefits of EDI Integration with QuickBooks**
1. Time Savings: Automated data entry saves time and reduces manual workload.
2. Error Reduction: Eliminates manual data entry errors, ensuring accurate transaction records.
3. Enhanced Visibility: Real-time data exchange provides better visibility into transactions and inventory levels.
4. Improved Compliance: Ensures compliance with trading partner requirements and industry standards.
5. Scalability: EDI integration supports business growth by handling increased transaction volumes efficiently.
**
EDI Integration with QuickBooks Online**
EDI integration with QuickBooks Online follows a similar process but leverages the cloud-based nature of QuickBooks Online to offer additional benefits such as enhanced accessibility and scalability.
**
Steps for EDI Integration with QuickBooks Online**
1. Select an EDI Provider: Choose an EDI provider experienced in integrating with QuickBooks Online, like ActionEDI.
2. Configure EDI Software: Set up the EDI software to connect with QuickBooks Online using secure API connections.
3. Map EDI Transactions: Define mappings between EDI documents and QuickBooks Online data fields for accurate data translation.
4. Perform Testing: Conduct comprehensive testing to ensure seamless integration and data accuracy.
5. Deploy: Go live with the EDI integration, enabling automated data exchanges and real-time updates.
**Benefits of EDI Integration with QuickBooks Online**
1. Cloud-Based Accessibility: Access EDI transactions and QuickBooks Online data from anywhere, at any time.
2. Real-Time Data Sync: Ensure real-time synchronization of data between EDI transactions and QuickBooks Online.
3. Enhanced Collaboration: Multiple users can access and work on data simultaneously, improving team collaboration.
4. Scalable Solution: Easily scale EDI transactions as your business grows without worrying about infrastructure constraints.
5. Automatic Updates: Benefit from automatic software updates and enhancements in QuickBooks Online.
How ActionEDI Simplifies EDI Integration
Streamlined Setup: ActionEDI’s user-friendly setup process ensures quick and hassle-free integration with QuickBooks and QuickBooks Online.
Scalable Solutions: Whether you are a small business or experiencing rapid growth, ActionEDI scales with your needs, handling increased transaction volumes effortlessly.
Cost-Effective: ActionEDI provides affordable EDI solutions, helping you achieve significant cost savings without compromising on functionality.
Real-Time Data Exchange: With ActionEDI, enjoy real-time data synchronization between your EDI transactions and QuickBooks, ensuring up-to-date information and enhanced visibility.
Dedicated Support: ActionEDI’s dedicated support team is always available to assist you with any integration issues, ensuring smooth and uninterrupted operations.
Conclusion
Integrating EDI with QuickBooks and QuickBooks Online is a strategic move that can significantly enhance your business’s efficiency, accuracy, and scalability. By automating data exchanges and streamlining operations, EDI integration helps you stay competitive in today’s fast-paced business environment.
ActionEDI stands out as a reliable partner for your EDI integration needs. With its seamless integration, cost-effective solutions, and exceptional support, ActionEDI ensures that your transition to EDI is smooth and successful. Whether you are using QuickBooks or QuickBooks Online, ActionEDI provides the tools and expertise to help you optimize your business processes and achieve your growth objectives.
Simplify EDI Complexity Maximize Savings
Action EDI is a fully hosted cloud-based EDI Fulfillment Software for SMEs that provides a full suite of EDI integrations without breaking the bank. Be it for suppliers, trading partners, 3PL, and ERP Integrations.
– Seamless Integration
– Unlimited Users
– Cost-Effective Solutions
Tailored for Your Growth
Book a demo at Action EDI: Get Started: Book A FREE DEMO | actionedi | |
1,925,603 | JAVASCRIPT | JavaScript (JS) is a programming language used to make web pages interactive. It works alongside HTML... | 0 | 2024-07-16T15:08:09 | https://dev.to/noorscript/javascript-5fdh | beginners, javascript, learning | **JavaScript (JS) is a programming language used to make web pages interactive. It works alongside HTML and CSS to enhance the user experience on websites.**
##
How JavaScript Differs from Other Languages
- **Runs in the Browser: **JavaScript runs directly in the web browser, unlike many other languages that run on a server.
- **Responds to User Actions:** It's designed to respond to events like clicks and key presses, making web pages interactive.
- **Asynchronous Operations:** JavaScript can perform tasks in the background without interrupting the main program.
## Key Features:
- **Interactivity:** Adds dynamic elements to web pages.
- ** Versatility:** Used for both front-end and back-end development.
- **Wide Support:** Works in all modern web browsers.
- **Large Ecosystem:** Includes many libraries and frameworks like React, Angular, and Node.js.
- **Easy to Learn:** Has a simple syntax, making it accessible for beginners.
## Why Learn JavaScript?
- **High Demand: Many **job opportunities for JavaScript developers.
- **Community Support:** Lots of resources and help available.
- **Career Opportunities:** Essential for web development roles.
| noorscript |
1,925,604 | Exploring Generative Adversarial Networks (GANs) - The Power of Unsupervised Deep Learning | Generative Adversarial Networks, commonly known as GANs, have revolutionized the field of... | 0 | 2024-07-16T15:09:13 | https://victorleungtw.com/2024/07/16/gans/ | gans, deeplearning, ai, machinelearning | Generative Adversarial Networks, commonly known as GANs, have revolutionized the field of unsupervised deep learning since their invention by Ian Goodfellow and his colleagues in 2014. Described by Yann LeCun as "the most exciting idea in AI in the last ten years," GANs have made significant strides in various domains, offering innovative solutions to complex problems.
## What are GANs?
GANs consist of two neural networks, the generator and the discriminator, which engage in a competitive game. The generator creates synthetic data samples, while the discriminator evaluates whether these samples are real or fake. Over time, the generator improves its ability to produce data that is indistinguishable from real data, effectively learning the target distribution of the training dataset.
### How GANs Work
1. **Generator**: This neural network generates fake data by transforming random noise into data samples.
2. **Discriminator**: This neural network evaluates the data samples, distinguishing between real data (from the training set) and fake data (produced by the generator).
The generator aims to fool the discriminator, while the discriminator strives to accurately identify the fake data. This adversarial process continues until the generator produces highly realistic data that the discriminator can no longer distinguish from the real data.
## Applications of GANs
While GANs initially gained fame for generating realistic images, their applications have since expanded to various fields, including:
### Medical Data Generation
Esteban, Hyland, and Rätsch (2017) applied GANs to the medical domain to generate synthetic time-series data. This approach helps in creating valuable datasets for research and analysis without compromising patient privacy.
### Financial Data Simulation
Researchers like Koshiyama, Firoozye, and Treleaven (2019) explored the potential of GANs in generating financial data. GANs can simulate alternative asset price trajectories, aiding in the training of supervised or reinforcement learning algorithms and backtesting trading strategies.
### Image and Video Generation
GANs have shown remarkable success in generating high-quality images and videos. Applications include:
- **Image Super-Resolution**: Enhancing the resolution of images.
- **Video Generation**: Creating realistic video sequences from images or text descriptions.
- **Image Blending**: Merging multiple images to create new ones.
- **Human Pose Identification**: Analyzing and generating human poses in images.
### Domain Transfer
CycleGANs, a type of GAN, enable image-to-image translation without the need for paired training data. This technique is used for tasks like converting photographs into paintings or transforming images from one domain to another.
### Text-to-Image Generation
Stacked GANs (StackGANs) use text descriptions to generate images that match the provided descriptions. This capability is particularly useful in fields like design and content creation.
### Time-Series Data Synthesis
Recurrent GANs (RGANs) and Recurrent Conditional GANs (RCGANs) focus on generating realistic time-series data. These models have potential applications in areas like finance and healthcare, where accurate time-series data is crucial.
## Advantages of GANs
GANs offer several benefits, making them a powerful tool in machine learning:
1. **High-Quality Data Generation**: GANs can produce data that closely mimics the real data, which is invaluable in scenarios where acquiring real data is challenging or expensive.
2. **Unsupervised Learning**: GANs do not require labeled data, reducing the cost and effort associated with data labeling.
3. **Versatility**: GANs can be applied to various types of data, including images, videos, and time-series data, demonstrating their flexibility.
## Challenges and Future Directions
Despite their success, GANs also present certain challenges:
1. **Training Instability**: The adversarial training process can be unstable, requiring careful tuning of hyperparameters and network architectures.
2. **Mode Collapse**: The generator might produce limited variations of data, failing to capture the diversity of the real data distribution.
3. **Evaluation Metrics**: Assessing the quality of generated data remains an ongoing challenge, with researchers exploring various metrics to address this issue.
Future research aims to address these challenges and further enhance the capabilities of GANs. Advances in architectures, such as Deep Convolutional GANs (DCGANs) and Conditional GANs (cGANs), have already shown promise in improving the stability and quality of generated data.
## Conclusion
Generative Adversarial Networks represent a groundbreaking innovation in unsupervised deep learning. From generating realistic images and videos to synthesizing valuable time-series data, GANs have opened new avenues for research and applications across diverse fields. As researchers continue to refine and expand upon this technology, GANs are poised to remain at the forefront of AI advancements, offering exciting possibilities for the future.
| victorleungtw |
1,925,605 | Deep Dive into JavaScript Closures: How and When to Use Them | JavaScript closures are a fundamental concept that every developer should master. They are powerful,... | 0 | 2024-07-16T15:10:08 | https://dev.to/itsshaikhaj/deep-dive-into-javascript-closures-how-and-when-to-use-them-5c63 |
JavaScript closures are a fundamental concept that every developer should master. They are powerful, yet often misunderstood. This article will demystify closures, explaining their mechanics, when to use them, and providing practical examples with outputs to illustrate their power.
## Table of Contents
| **Heading** | **Sub-topics** |
|-------------|----------------|
| **Introduction to JavaScript Closures** | - What is a Closure?<br>- Importance of Closures |
| **Understanding the Mechanics of Closures** | - Lexical Scoping<br>- Closure Creation |
| **Advantages of Using Closures** | - Data Privacy<br>- Function Factories<br>- Maintaining State |
| **Common Use Cases for Closures** | - Encapsulation<br>- Callback Functions<br>- Event Handlers |
| **Implementing Closures in JavaScript** | - Basic Closure Example<br>- Practical Examples<br>- Real-world Applications |
| **Closure in Loop and Iterations** | - Issues with Closures in Loops<br>- Solutions and Best Practices |
| **Closures in Asynchronous JavaScript** | - Closures with setTimeout<br>- Promises and Async/Await |
| **Performance Considerations with Closures** | - Memory Management<br>- Optimization Tips |
| **Debugging Closures in JavaScript** | - Common Pitfalls<br>- Debugging Techniques |
| **Advanced Closure Patterns** | - Module Pattern<br>- Revealing Module Pattern<br>- Currying |
| **Comparing Closures with Other Concepts** | - Closures vs. Object-Oriented Programming<br>- Closures vs. Functional Programming |
| **Best Practices for Using Closures** | - Coding Standards<br>- Readability and Maintenance |
| **Frequently Asked Questions (FAQs)** | - What problems do closures solve?<br>- Can closures lead to memory leaks?<br>- How do closures affect performance?<br>- Can closures be used in ES6 classes?<br>- Are closures unique to JavaScript?<br>- How to debug closures? |
| **Conclusion** | - Recap and Final Thoughts |
## **Introduction to JavaScript Closures**
### **What is a Closure?**
A closure is a function that retains access to its lexical scope, even when the function is executed outside that scope. In simpler terms, a closure allows a function to access variables from an enclosing scope, even after the outer function has finished executing.
### **Importance of Closures**
Closures are crucial in JavaScript because they enable powerful patterns like data encapsulation, function factories, and more. They help maintain state and provide a way to hide implementation details, promoting cleaner and more maintainable code.
## **Understanding the Mechanics of Closures**
### **Lexical Scoping**
Lexical scoping refers to the fact that the visibility of variables is determined by the physical structure of the code. In JavaScript, a function's scope is defined by where it is written in the source code.
### **Closure Creation**
Closures are created whenever a function is defined. If that function accesses any variables from an outer scope, it forms a closure. Here’s a simple example:
```javascript
function outerFunction() {
const outerVariable = 'I am from outer scope';
function innerFunction() {
console.log(outerVariable);
}
return innerFunction;
}
const closureFunction = outerFunction();
closureFunction(); // Outputs: 'I am from outer scope'
```
## **Advantages of Using Closures**
### **Data Privacy**
Closures provide a way to create private variables. By enclosing variables within a function, they are not accessible from the outside, thus protecting the data.
```javascript
function createCounter() {
let count = 0;
return function() {
count++;
return count;
};
}
const counter = createCounter();
console.log(counter()); // 1
console.log(counter()); // 2
```
### **Function Factories**
Closures can be used to create function factories, which are functions that generate other functions.
```javascript
function greet(greeting) {
return function(name) {
console.log(`${greeting}, ${name}!`);
};
}
const sayHello = greet('Hello');
sayHello('Alice'); // Outputs: 'Hello, Alice!'
```
### **Maintaining State**
Closures allow functions to maintain state between executions, which is especially useful in scenarios like web development.
## **Common Use Cases for Closures**
### **Encapsulation**
Closures are excellent for encapsulating logic and creating modular, reusable code.
### **Callback Functions**
Closures are frequently used in callback functions to maintain state or pass additional information.
```javascript
function fetchData(url, callback) {
fetch(url)
.then(response => response.json())
.then(data => callback(data));
}
function handleData(data) {
console.log(data);
}
fetchData('https://api.example.com/data', handleData);
```
### **Event Handlers**
Closures are commonly used in event handlers to access variables from an outer scope.
```javascript
function setupButton() {
const message = 'Button clicked!';
document.getElementById('myButton').addEventListener('click', function() {
alert(message);
});
}
setupButton();
```
## **Implementing Closures in JavaScript**
### **Basic Closure Example**
Here’s a basic example to illustrate how closures work:
```javascript
function outer() {
let count = 0;
function inner() {
count++;
console.log(count);
}
return inner;
}
const counter = outer();
counter(); // Outputs: 1
counter(); // Outputs: 2
```
### **Practical Examples**
Closures are used in various practical applications, such as:
- **Creating private variables**: Protect data from being accessed or modified directly.
- **Function currying**: Break down functions into a series of smaller functions.
- **Memoization**: Cache results of expensive function calls to improve performance.
### **Real-world Applications**
In real-world applications, closures are widely used in frameworks like React and Angular, where they help manage state and encapsulate component logic.
## **Closure in Loop and Iterations**
### **Issues with Closures in Loops**
A common issue with closures in loops is that they capture the loop variable, which can lead to unexpected behavior.
```javascript
for (var i = 0; i < 3; i++) {
setTimeout(function() {
console.log(i);
}, 1000);
}
// Outputs: 3, 3, 3
```
### **Solutions and Best Practices**
To solve this, use `let` instead of `var` to create a new binding for each iteration.
```javascript
for (let i = 0; i < 3; i++) {
setTimeout(function() {
console.log(i);
}, 1000);
}
// Outputs: 0, 1, 2
```
Alternatively, use an IIFE (Immediately Invoked Function Expression) to create a new scope.
```javascript
for (var i = 0; i < 3; i++) {
(function(i) {
setTimeout(function() {
console.log(i);
}, 1000);
})(i);
}
// Outputs: 0, 1, 2
```
## **Closures in Asynchronous JavaScript**
### **Closures with setTimeout**
Closures are essential when working with asynchronous code, such as `setTimeout`.
```javascript
function createPrinter(message) {
return function() {
console.log(message);
};
}
setTimeout(createPrinter('Hello after 1 second'), 1000);
```
### **Promises and Async/Await**
Closures work seamlessly with promises and async/await to maintain context across asynchronous operations.
```javascript
function fetchData(url) {
return fetch(url).then(response => response.json());
}
async function getData() {
const data = await fetchData('https://api.example.com/data');
console.log(data);
}
getData();
```
## **Performance Considerations with Closures**
### **Memory Management**
Closures can lead to increased memory usage because they retain references to the outer scope. This can potentially cause memory leaks if not managed properly.
### **Optimization Tips**
To avoid memory leaks, ensure closures are not unnecessarily long-lived and clean up references when they are no longer needed.
```javascript
function createClosure() {
let largeData = new Array(1000).fill('data');
return function() {
console.log(largeData.length);
};
}
const closure = createClosure();
// To prevent memory leaks, ensure largeData is released when no longer needed
closure = null;
```
## **Debugging Closures in JavaScript**
### **Common Pitfalls**
Common issues with closures include unintended variable capture and memory leaks. Debugging these can be challenging due to the complexity of nested scopes.
### **Debugging Techniques**
Use tools like console logging, breakpoints, and JavaScript debuggers to trace and understand the flow of data within closures.
```javascript
function outer() {
let count = 0;
function inner() {
console.log(count);
count++;
}
return inner;
}
const counter = outer();
counter(); // Set a breakpoint here to inspect the closure's scope
counter();
```
## **Advanced Closure Patterns**
### **Module Pattern**
The module pattern uses closures to encapsulate and organize code.
```javascript
const counterModule = (function() {
let count = 0;
return {
increment() {
count++;
console.log(count);
},
reset() {
count = 0;
console.log('Counter reset');
}
};
})();
counterModule.increment(); // 1
counterModule.increment(); // 2
counterModule.reset(); // Counter reset
```
### **Revealing Module Pattern**
A variation of the module pattern where private members are kept private, but public methods are exposed.
```javascript
const revealingCounterModule = (function() {
let count = 0;
function increment() {
count++;
console.log(count);
}
function reset() {
count = 0;
console.log('Counter reset');
}
return {
increment: increment,
reset: reset
};
})();
revealingCounterModule.increment(); // 1
revealingCounterModule.increment(); // 2
revealingCounterModule.reset(); // Counter reset
```
### **Currying**
Currying transforms a function with multiple arguments into a series of functions, each taking a single argument.
```javascript
function curry(fn) {
return function curried(...args) {
if (args.length >= fn.length) {
return fn.apply(this, args);
} else {
return function(...args2) {
return curried.apply(this, args.concat(args2));
};
}
};
}
function sum(a, b, c) {
return a + b + c;
}
const curriedSum = curry(sum);
console.log(curriedSum(1)(2)(3)); // 6
```
## **Comparing Closures with Other Concepts**
### **Closures vs. Object-Oriented Programming**
Closures provide encapsulation and state management similar to classes in object-oriented programming but without the overhead of defining a class structure.
### **Closures vs. Functional Programming**
Closures align well with functional programming principles by enabling function composition and immutability. They help maintain state in a functional context without relying on external state.
## **Best Practices for Using Closures**
### **Coding Standards**
Follow best practices such as naming conventions, avoiding global variables, and limiting the scope of closures to necessary contexts.
### **Readability and Maintenance**
Write closures in a way that is easy to understand and maintain. Avoid overly complex nesting and ensure that the purpose of the closure is clear.
```javascript
function createLogger(level) {
return function(message) {
console.log(`[${level}] ${message}`);
};
}
const infoLogger = createLogger('INFO');
infoLogger('This is an info message.'); // Outputs: [INFO] This is an info message.
```
## **Frequently Asked Questions (FAQs)**
**What problems do closures solve?**
Closures solve problems related to data encapsulation, maintaining state across function calls, and creating modular, reusable code.
**Can closures lead to memory leaks?**
Yes, if closures retain references to variables unnecessarily, they can lead to memory leaks. It's important to manage references and clean up when they are no longer needed.
**How do closures affect performance?**
Closures can increase memory usage and affect performance if not used judiciously. However, when used appropriately, they offer significant benefits in terms of code organization and maintainability.
**Can closures be used in ES6 classes?**
Yes, closures can be used in ES6 classes to create private methods and variables, enhancing encapsulation.
**Are closures unique to JavaScript?**
No, closures are not unique to JavaScript. They are a common feature in many programming languages, including Python, Ruby, and Lisp.
**How to debug closures?**
Debugging closures can be challenging. Use tools like console logging, breakpoints, and JavaScript debuggers to inspect the scope and flow of data within closures.
## **Conclusion**
Closures are a powerful and essential feature of JavaScript. Understanding how they work and when to use them can significantly improve the quality and maintainability of your code. By encapsulating data, maintaining state, and creating modular functions, closures enable more flexible and robust JavaScript applications.
| itsshaikhaj | |
1,925,607 | Clone any Git URL directly to VS Code with a single click! | 🚀 Features One-click cloning from any Git repository URL Seamless integration with VS... | 0 | 2024-07-16T15:11:02 | https://dev.to/ofir-haim/clone-any-git-url-directly-to-vs-code-with-a-single-click-2a77 | devops, extensions, vscode | ## 🚀 Features
One-click cloning from any Git repository URL
Seamless integration with VS Code
Works with GitHub, GitLab, Bitbucket, and more
Lightning-fast setup and minimal configuration
## 🎭 Why AnyClown?
Because only a clown would waste time manually copying URLs and switching between browsers and terminals! AnyClown brings the circus to your development workflow, juggling Git repositories with ease.
## 🛠️ Installation
Visit the Chrome Web Store
Search for "AnyClown"
Click "Add to Chrome"
Embrace your inner code clown 🎈
[Chrome Web Store](https://chromewebstore.google.com/search/anyClown)
## 🎪 How to Use
Navigate to any Git repository URL
Click the AnyClown icon in your Chrome toolbar
Watch in amazement as the repo opens in VS Code
## 🧑💻 Requirements
Google Chrome browser
Visual Studio Code
A sense of humor (optional, but recommended)
## 🐛 Found a Bug?
If you've caught a pesky bug in our clowning around, please open an issue. We promise to juggle it into our priority queue!
## 🤝 Contributing
We welcome all clowns, jesters, and code acrobats to contribute! Check out our contributing guidelines to join the circus.
## 📜 License
See the LICENSE file for more details.
## TargetTeam
Made with ❤️ and a lot of 🤡 energy by the AnyClown team.
Remember: Keep calm and clone on! 🎭🚀
| ofir-haim |
1,925,608 | Clone any Git URL directly to VS Code with a single click! | 🚀 Features One-click cloning from any Git repository URL Seamless integration with VS... | 0 | 2024-07-16T15:11:02 | https://dev.to/target-ops/clone-any-git-url-directly-to-vs-code-with-a-single-click-ma1 | devops, extensions, vscode | ## 🚀 Features
One-click cloning from any Git repository URL
Seamless integration with VS Code
Works with GitHub, GitLab, Bitbucket, and more
Lightning-fast setup and minimal configuration
## 🎭 Why AnyClown?
Because only a clown would waste time manually copying URLs and switching between browsers and terminals! AnyClown brings the circus to your development workflow, juggling Git repositories with ease.
## 🛠️ Installation
Visit the Chrome Web Store
Search for "AnyClown"
Click "Add to Chrome"
Embrace your inner code clown 🎈
[Chrome Web Store](https://chromewebstore.google.com/search/anyClown)
## 🎪 How to Use
Navigate to any Git repository URL
Click the AnyClown icon in your Chrome toolbar
Watch in amazement as the repo opens in VS Code
## 🧑💻 Requirements
Google Chrome browser
Visual Studio Code
A sense of humor (optional, but recommended)
## 🐛 Found a Bug?
If you've caught a pesky bug in our clowning around, please open an issue. We promise to juggle it into our priority queue!
## 🤝 Contributing
We welcome all clowns, jesters, and code acrobats to contribute! Check out our contributing guidelines to join the circus.
## 📜 License
See the LICENSE file for more details.
## TargetTeam
Made with ❤️ and a lot of 🤡 energy by the AnyClown team.
Remember: Keep calm and clone on! 🎭🚀
| ofir-haim |
1,925,609 | How to Unveil the Magic of Lake Turkana | I. A Journey to the Jade Sea Lake Turkana, nestled within the cradle of the Great Rift Valley in... | 0 | 2024-07-16T15:11:46 | https://dev.to/paukush69/how-to-unveil-the-magic-of-lake-turkana-5go | safari |
I. A Journey to the Jade Sea
Lake Turkana, nestled within the cradle of the Great Rift Valley in Kenya, beckons adventurous souls with its shimmering turquoise waters, dramatic landscapes, and unique cultural tapestry.
Often referred to as the[ "Jade Sea" ](https://africompasstravel.com/)for its captivating color, Lake Turkana is the world's largest permanent desert lake, a UNESCO World Heritage Site, and a haven for diverse life. Prepare to be captivated by its beauty, rich history, and unforgettable expiriences
II. Understanding the Jade Sea's Significance
Location and Geography: Lake Turkana stretches over 248 kilometers (154 miles) in length, cradled by the rugged terrain of the Great Rift Valley. This majestic lake not only holds the title of the world's largest desert lake but is also Africa's third-largest freshwater lake by volume.
Historical and Cultural Importance: Fossil discoveries around the lake reveal a fascinating human story. Evidence suggests early hominids like Homo erectus may have lived here 1.6 million years ago. The lake has also been a vital source of life and sustenance for local communities for centuries.
III. Planning Your Turkana Adventure
Weather and Tourist Seasons: The best time to visit Lake Turkana depends on your preferences. The dry season (December to March) offers sunshine and comfortable temperatures, perfect for wildlife viewing. If you're a birdwatching enthusiast, consider the shoulder seasons (April-May and October-November) when migratory birds abound. However, be prepared for occasional rain showers.
Reaching the Jade Sea: [Lake Turkana](https://africompasstravel.com/) is accessible by road or air. Several small airstrips cater to chartered flights, while a scenic road trip allows you to soak in the surrounding landscapes. Remember to check road conditions before your visit.
Permits and Permissions: Always obtain the necessary permits before embarking on your adventure. Park entrance fees are applicable, and specific permissions may be required for certain activities like fishing.
IV. A Paradise for Wildlife Enthusiasts
Diverse Wildlife: Lake Turkana is a haven for an incredible array of wildlife. The crocodile population here is the largest freshwater crocodile population in Africa. Look out for these prehistoric-looking reptiles basking on the shores. The crystal-clear waters teem with fish, including the endangered Nile perch and various colorful cichlid species. The skies above are a haven for birdwatchers, with over 400 species recorded, including flamingos, pelicans, and majestic eagles.
Wildlife Viewing and Photography: Boat tours offer exceptional opportunities to witness the resident crocodile and hippopotamus populations. Early mornings and late afternoons provide the best light for capturing stunning wildlife photographs. Central Island National Park, a volcanic island within the lake, is a paradise for birdwatchers and home to unique geological formations.
V. Engaging with the Jade Sea
Water Activities:[ The lake beckons adventurous spirits.](https://africompasstravel.com/) Take a refreshing dip in the crystal-clear (though slightly alkaline) waters – a truly unique experience! Sailing and boat tours offer stunning perspectives of the lake's vastness and its resident wildlife. Remember, prioritize safety and follow guidelines when engaging in water activities.
VI. Unveiling the Rich Cultural Tapestry
Local Communities: Several indigenous tribes, including the Turkana people, have called the shores of Lake Turkana home for millennia. Immerse yourself in their rich cultural heritage by visiting a traditional village and learning about their way of life, deeply intertwined with the lake. Witness their traditional practices, art forms, and crafts passed down through generations.
Cultural Events and Festivals: Participating in a local cultural event or festival allows you to experience the vibrant spirit of the communities firsthand. Be sure to inquire about any cultural celebrations happening during your visit.
VII. Exploring Beyond the Lake
Surrounding Attractions: Lake Turkana offers a gateway to further exploration. The vast and awe-inspiring Chalbi Desert lies to the east, while Central Island National Park, a volcanic island within the lake, provides a unique ecosystem to explore. Guided tours and excursions can take you to these fascinating destinations.
VIII. Camping Under the Stars
Camping Options: For an unforgettable experience, consider camping under the vast, star-studded sky near the lake. Several campsites offer basic amenities, allowing you to connect with nature and experience the tranquility of the lakeside environment. Lodges and guesthouses are also available for those seeking a more comfortable stay.
IX. Safety and Responsible Tourism
Safety Tips: Always prioritize safety. Be aware of your surroundings, maintain a safe distance from wildlife, and adhere to park regulations. Sun protection, insect repellent, and hydration
| paukush69 |
1,925,611 | The Power of Networking in Virtual Events: Tips and Tools | Networking plays a pivotal role in business development. It opens doors to new opportunities, fosters... | 0 | 2024-07-16T15:13:33 | https://dev.to/priyanka_aich/the-power-of-networking-in-virtual-events-tips-and-tools-5m | ai, devops, learning, testing | Networking plays a pivotal role in business development. It opens doors to new opportunities, fosters collaborations, and builds lasting relationships. Traditionally, networking has been synonymous with face-to-face interactions at conferences and meetings. However, the landscape has dramatically shifted with the advent of virtual events.
Virtual events have surged in popularity, especially in recent years. In 2023 alone, the global virtual events market was valued at $114.12 billion and is expected to grow at a compound annual growth rate (CAGR) of 23.7% from 2024 to 2028. This rapid growth is driven by the flexibility, accessibility, and cost-effectiveness of virtual platforms, allowing participants to connect from anywhere in the world.
Contrary to the belief that virtual networking might lack the impact of in-person interactions, recent statistics show otherwise. A 2022 study revealed that 78% of event organizers found virtual networking to be equally effective as face-to-face meetings, with 60% of attendees reporting meaningful connections made through virtual platforms. These figures underscore that, with the right tools and strategies, networking in virtual events can be just as powerful, if not more so, than traditional methods.
Importance of Networking in Virtual Events
Networking in virtual events is a crucial element for both personal and professional growth, offering unique opportunities that traditional networking avenues often cannot match. Let’s delve into why networking is pivotal and explore the specific advantages and successful outcomes seen in virtual networking environments, supported by real-world examples and relevant statistics.
1. Crucial for Personal and Professional Growth
Networking is vital for personal and professional growth as it facilitates the exchange of ideas, knowledge, and opportunities. It allows individuals to build meaningful relationships, gain insights into industry trends, and access career-enhancing prospects. According to a survey by Forbes Insights (2022), 85% of professionals believe that networking is essential for career success, emphasizing its significance in personal and professional development.
2. Unique Opportunities in Virtual Events
Virtual events provide unique networking opportunities that transcend geographical boundaries and time constraints. They enable attendees to connect with a diverse global audience, access niche communities, and engage in targeted networking activities. A study by GlobalWebIndex (2023) found that 72% of virtual event attendees value the networking opportunities offered by digital platforms, highlighting the appeal of virtual networking.
3. Successful Networking Outcomes from Virtual Events
Real-world examples showcase the effectiveness of networking in virtual events:
Success Story: Tech Collaboration (2021)
At a virtual industry summit in 2021, a startup founder connected with a venture capitalist during a networking session. This interaction led to a funding partnership that resulted in a 200% increase in the startup’s revenue within a year.
Virtual Career Fair Impact (2022)
A report by Job FairX (2022) revealed that 60% of job seekers attending virtual career fairs secured interviews with top employers, with 25% receiving job offers directly through networking interactions during the event.
Global Networking Reach
According to a survey by Statista (2024), 78% of professionals believe that virtual events provide a broader networking reach compared to traditional in-person events. This broader reach translates into more diverse and impactful networking opportunities for participants.
Networking in virtual events is indispensable for personal and professional growth, offering a wide array of advantages and successful outcomes as evidenced by real-world examples and supported by relevant statistics and reports.
Tips for Effective Networking in Virtual Events
Unlocking success in virtual events goes beyond attending; it’s about mastering the art of effective networking. Whether it’s connecting with industry leaders, exploring new opportunities, or expanding your professional circle, navigating virtual networking requires strategic planning and execution. Here are some valuable tips to elevate your networking game in virtual events:
A. Preparing Before the Event
Researching Attendees and Speakers
Before the virtual event begins, take the time to research the attendees and speakers. This can help you identify potential networking opportunities and topics of mutual interest. According to a survey by EventMB (2023), 70% of successful networkers in virtual events conduct research on participants beforehand, enabling them to engage in meaningful conversations and connections during the event.
Setting Clear Networking Goals
Define clear networking goals for the event. Whether it’s expanding your professional network, seeking collaboration opportunities, or gaining industry insights, having specific goals can guide your networking efforts. A study by LinkedIn (2022) revealed that professionals who set clear networking goals are 30% more likely to achieve positive outcomes from virtual networking engagements.
Creating an Engaging and Professional Virtual Presence
Ensure your virtual presence is engaging and professional. This includes using a high-quality profile picture, updating your bio with relevant information, and having a professional background during virtual meetings. According to a report by GlobalWebIndex (2024), 85% of virtual event attendees value professionalism in networking interactions, emphasizing the importance of a polished virtual presence.
Real-World Examples:
Research Impact (2021): A marketing executive attending a virtual industry conference in 2021, as reported by Forbes, researched the speakers and attendees beforehand. This preparation led to a valuable conversation with a key industry influencer, resulting in a strategic partnership that boosted their company’s brand visibility by 40%.
Goal-Oriented Networking (2022): A freelance designer participating in a virtual networking event in 2022, mentioned in a Harvard Business Review case study, set a goal to connect with potential clients. By focusing on this goal and engaging in targeted conversations, they secured three new client projects, increasing their revenue by 25% within a month.
Professional Virtual Presence (2023): An entrepreneur presenting at a virtual pitch event in 2023, as featured in Entrepreneur magazine, ensured a professional virtual presence by using a branded background and delivering a compelling presentation. This professional approach impressed investors, leading to a successful funding round of $500,000 for their startup.
Incorporating these tips and real-world examples can significantly enhance your networking success in virtual events, setting the stage for valuable connections and opportunities.
B. During the Event: Maximizing Networking Opportunities
While attending a virtual event, your active participation and engagement play a crucial role in effective networking. Here’s how you can make the most of networking opportunities during the event:
Actively Participating in Discussions and Sessions
Engage actively in discussions, panels, and sessions relevant to your interests and industry. Share insights, ask thoughtful questions, and contribute meaningfully to conversations. According to a study by EventMB (2023), 80% of successful networkers actively participate in virtual event sessions, showcasing their expertise and building rapport with fellow attendees.
Utilizing Chat Features and Breakout Rooms
Take advantage of chat features and breakout rooms to connect with other attendees. Initiate conversations, exchange contact information, and explore potential collaborations. A survey by GlobalWebIndex (2022) found that 65% of virtual event attendees use chat features and breakout rooms for networking purposes, highlighting the effectiveness of these tools in fostering connections.
Engaging in Q&A Sessions and Virtual Lounges
Attend Q&A sessions and virtual lounges to interact with speakers, influencers, and industry experts. Pose insightful questions, seek advice, and showcase your expertise. According to a report by LinkedIn (2021), 75% of professionals believe that engaging in Q&A sessions and virtual lounges is beneficial for networking, as it allows for direct interaction and knowledge sharing.
By actively participating in discussions, utilizing chat features and breakout rooms, and engaging in Q&A sessions and virtual lounges, you can enhance your networking experience and forge valuable connections during virtual events.
C. Post-Event Follow-Up: Cementing Connections
The networking journey doesn’t end when the virtual event concludes; in fact, it’s just the beginning. Here are essential steps for effective post-event follow-up to cement your connections:
Sending Personalized Follow-Up Messages
After the event, send personalized follow-up messages to individuals you connected with during the event. Reference specific discussions or insights shared during the event to demonstrate your genuine interest. According to a survey by HubSpot (2023), personalized follow-up messages result in a 30% higher response rate compared to generic messages, indicating the effectiveness of personalized communication in networking.
Connecting on Professional Networks like LinkedIn
Connect with new contacts on professional networking platforms like LinkedIn. Send personalized connection requests, mentioning your shared interests or the event where you met. LinkedIn’s data shows that professionals who connect on the platform are 50% more likely to engage in ongoing networking conversations and collaborations.
Attending Post-Event Meetups or Webinars
Stay engaged with the event community by attending post-event meetups or webinars organized by event organizers or industry groups. These gatherings provide opportunities to continue networking, discuss event takeaways, and explore potential partnerships. A report by Eventbrite (2022) revealed that 70% of attendees find post-event meetups valuable for networking and knowledge sharing.
By sending personalized follow-up messages, connecting on professional networks like LinkedIn, and attending post-event meetups or webinars, you can solidify your connections, nurture relationships, and unlock further networking opportunities beyond the virtual event.
Tools to Enhance Networking in Virtual Events
Networking in virtual events has been revolutionized by a plethora of tools and platforms designed to facilitate meaningful connections and interactions. Here’s a comprehensive overview of tools that can enhance your networking experience:
a. Event Platforms with Networking Features:
ibentos
Known for its innovative networking capabilities, ibentos offers AI matchmaking, virtual lounges, and chat rooms, making it easier for attendees to connect based on shared interests and goals. This platform prioritizes personalized networking experiences, fostering valuable professional relationships.
Hopin
Hopin is renowned for its seamless networking features, including speed networking sessions, virtual expos, and breakout rooms. Attendees can engage in one-on-one conversations, join group discussions, and explore interactive networking opportunities tailored to their preferences.
Whova
Whova stands out for its robust networking tools such as business card exchanges, private messaging, and community boards. Attendees can initiate conversations, exchange contact information, and collaborate post-event, enhancing their networking outcomes.
b. Networking Apps and Software:
Brella
Brella is a dedicated networking app that facilitates matchmaking based on attendee profiles and interests. Integrating Brella with virtual events enables personalized networking sessions, enhancing attendee engagement and connection-building.
Grip
Grip leverages AI-powered matchmaking algorithms to connect attendees with relevant networking opportunities. By integrating Grip with virtual events, organizers can enhance networking experiences, drive meaningful interactions, and maximize attendee satisfaction.
c. Social Media and Professional Networks:
Leveraging LinkedIn, Twitter, and Other Platforms
Utilize social media platforms like LinkedIn and Twitter to extend your networking reach beyond virtual events. Share insights, engage with industry conversations, and connect with fellow attendees to nurture relationships and stay updated on industry trends.
Creating Event-Specific Social Media Strategies
Develop event-specific social media strategies to promote networking opportunities and encourage attendee engagement. Utilize event hashtags, host live discussions, and share valuable content to foster networking interactions and community building.
By leveraging these tools and platforms, attendees can enhance their networking experiences, forge meaningful connections, and unlock new opportunities for collaboration and growth in virtual events.
Case studies of successful networking in virtual events
In the rapidly evolving landscape of virtual events, networking has emerged as a cornerstone for fostering meaningful connections, driving collaborations, and maximizing engagement. Through innovative platforms, AI matchmaking algorithms, and interactive features, organizations have redefined the boundaries of networking in virtual spaces.
Let’s explore some compelling case studies that showcase the success stories of networking in virtual events, highlighting strategies employed by industry leaders to facilitate seamless interactions, foster valuable connections, and create immersive networking experiences.
1. Salesforce Dreamforce
Salesforce’s annual Dreamforce event went virtual in 2020 due to the pandemic. They leveraged their own platform, Salesforce Anywhere, to create a seamless networking experience. Attendees could join virtual sessions, participate in Q&A sessions, and connect with speakers and other attendees through live chats and video calls. The platform also featured AI-powered matchmaking, suggesting relevant connections based on attendees’ interests and profiles. This approach resulted in increased engagement and meaningful networking interactions.
2. TED2020 - Uncharted
TED shifted its flagship TED Conference to a virtual format in 2020, naming it TED2020 – Uncharted. They used a combination of live-streamed talks, interactive Q&A sessions, and virtual lounges for networking. Attendees could explore virtual booths, engage in group discussions, and schedule one-on-one meetings with other attendees. TED also incorporated gamification elements, encouraging participants to interact and earn rewards for active participation. This strategy led to high attendee satisfaction and successful networking outcomes.
3. Web Summit
Web Summit, one of the world’s largest tech conferences, transitioned to a virtual format in 2020. They introduced an AI-powered networking tool called “Web Summit Connect,” which matched attendees based on their interests, industries, and goals. The platform facilitated virtual meetings, allowing attendees to connect with potential partners, investors, and collaborators. Web Summit also hosted thematic networking sessions and roundtable discussions, providing opportunities for targeted networking and knowledge sharing. This approach resulted in valuable connections and partnerships forged during the event.
4. Microsoft Ignite
Microsoft Ignite, an annual conference for developers and IT professionals, embraced virtual networking in its 2020 edition. They used Microsoft Teams as the primary platform, offering features like virtual breakout rooms, live chat, and networking lounges. Attendees could join industry-specific channels, participate in live demos, and schedule meetings with experts and peers. Microsoft also encouraged informal networking through virtual social events, such as virtual happy hours and interactive games. This strategy enhanced attendee engagement and fostered meaningful networking interactions.
These case studies highlight the effectiveness of leveraging technology, AI matchmaking, interactive features, and thematic networking sessions to create successful networking experiences in virtual events.
Conclusion
In virtual events, networking plays a crucial role in driving connections, collaborations, and business success. With the right tools and strategies, networking can be transformed into a catalyst for meaningful interactions. ibentos virtual event platform is a prime example of how effective networking can be facilitated in the digital realm. Our platform prioritizes personalized experiences, tailoring networking opportunities to each attendee’s preferences and objectives. This customization ensures that networking interactions are meaningful, productive, and aligned with attendees’ interests.
As virtual events continue to evolve, ibentos virtual event platform remains at the forefront of empowering organizers with tools that unlock networking’s full potential. By leveraging Ibentos’ platform, organizers can create impactful networking experiences that drive collaboration, foster innovation, and leave a lasting impression on attendees.
Ready to transform your virtual event experiences? Explore ibentos virtual event platform today!
_**First Seen At:** https://ibentos.com/blogs/the-power-of-networking-in-virtual-events-tips-and-tools/_ | priyanka_aich |
1,925,612 | Checkbox Extraction from PDFs - A Tutorial | This is a companion article to the YouTube video where you can see a live coding session in which we... | 28,082 | 2024-07-16T15:15:34 | https://unstract.com/blog/checkbox-extraction-from-pdfs-using-llmwhisperer/ | opensource, tutorial, ai, python | This is a companion article to the YouTube video where you can see a live coding session in which we extract raw text and structure data from a PDF form that has checkboxes and radiobuttons.
{% embed https://www.youtube.com/watch?v=dC7EhnEIdDA&t=3s %}
One challenge when it comes to processing PDF forms is the need to extract and interpret PDF form elements like checkboxes and radio buttons. Without this, automating business processes that involve these forms just won’t be possible. And in the wild, these PDF forms can either be native PDFs or just scans of paper documents. Or worse, smartphone-clicked images of paper forms. In this article, we’ll look at how to both extract and interpret PDF documents that contain forms in native text or scanned image formats.
## Before you run the project
The source code for the project can be found here on [GitHub](https://github.com/Zipstack/llmwhisperer-pdf-checkbox-processing). To successfully run the extraction script, you’ll need 2 different API keys. One for LLMWhisperer and the other for OpenAI APIs. Please be sure to read the Github project’s README to fully understand OS and other dependency requirements. You can [sign up for LLMWhisperer](https://llmwhisperer.unstract.com/products), get your API key, and process up to 100 pages per day free of charge.
## Our approach to PDF checkbox extraction
Because these documents can come in a wide variety of formats and structures, we will use a Large Language Model in order to interpret and structure the contents of those PDF documents. However, before that, we’ll need to extract raw text from the PDF (irrespective of whether it’s native text or scanned).
If you carefully think about it, the system that extracts raw text from the PDF needs to both detect and render PDF form elements like checkboxes and radiobuttons in a way that LLMs can understand. In this example, we’ll use LLMWhisperer to extract PDF raw text representing checkboxes and radiobuttons. You can use [LLMWhisperer ](https://unstract.com/llmwhisperer/)completely free for processing up to 100 pages per day. As for structuring the output from LLMWhisperer, we’ll use GPT3.5-Turbo and we’ll use [Langchain](https://github.com/langchain-ai/langchain) and [Pydantic](https://github.com/pydantic/pydantic) to help make our job easy.
## Input and expected output
Let’s take a look at the input document and what we expect to see as output.
**The PDF document**
We want to extract structure information from this [1003 form](https://github.com/Zipstack/llmwhisperer-pdf-checkbox-processing/blob/main/assets/docs/1003-sample.pdf), but in this exercise, we’ll only be processing the first page.
**Extracted raw text via LLMWhisperer**
Let’s look at the output from LLMWhisperer
**Two things should jump out:**
- LLMWhisperer preserves the layout of the input document in the output! This makes it easy for LLMs to get a good idea about the column layout and what different sections mean
- LLMWhisperer has rendered checkboxes and radio buttons as simple plain text! This allows LLMs to interpret the document as the user has filled it.
**What we want the final JSON to look like**
We want to output structured JSON using Pydantic and output something like the following so that it’s easy to process downstream. With LLMWhisperer giving us output—especially around checkboxes and radio buttons—it should be easy for us to get exactly what we want.
```
{
"personal_details": {
"name": "Amy America",
"ssn": "500-60-2222",
"dob": "1954-03-30T00:00:00Z",
"citizenship": "U.S. Citizen"
},
"extra_details": {
"type_of_credit": "Individual",
"marital_status": "Married",
"cell_phone": "(408) 111-2121"
},
"current_address": {
"street": "4321 Cul de Sac ST",
"city": "Los Angeles",
"state": "CA",
"zip_code": "90210",
"residing_in_addr_since_years": 10,
"residing_in_addr_since_months": 2,
"own_house": true,
"rented_house": true,
"rent": 2200,
"mailing_address_different": false
},
"employment_details": {
"business_owner_or_self_employed": true,
"ownership_of_25_pct_or_more": true
}
}
```
## The Code for checkbox extraction
We’re able to achieve our objectives in about 100 lines of code. Let’s look at the different aspects of it.
**Extracting raw text from the PDF**
Using LLMWhisperer’s Python client, we can extract data from PDF documents as needed. LLMWhisperer is a cloud service and requires an API key, which you can get for free. LLMWhisperer’s free plan allows you to extract up to 100 pages of data per day, which is more than we need for this example.
```
def extract_text_from_pdf(file_path, pages_list=None):
llmw = LLMWhispererClient()
try:
result = llmw.whisper(file_path=file_path, pages_to_extract=pages_list)
extracted_text = result["extracted_text"]
return extracted_text
except LLMWhispererClientException as e:
error_exit(e)
```
Just calling the whisper() method on the client, we’re able to extract raw text from images, native text PDFs, scanned PDFs, smartphone photos of documents, etc.
**Defining the schema**
To use Pydantic with Langchain, we define the schema or structure of the data we want to extract from the unstructured source as Pydantic classes. For our structuring use case, this is how it looks like:
```
class PersonalDetails(BaseModel):
name: str = Field(description="Name of the individual")
ssn: str = Field(description="Social Security Number of the individual")
dob: datetime = Field(description="Date of birth of the individual")
citizenship: str = Field(description="Citizenship of the individual")
class ExtraDetails(BaseModel):
type_of_credit: str = Field(description="Type of credit")
marital_status: str = Field(description="Marital status")
cell_phone: str = Field(description="Cell phone number")
class CurrentAddress(BaseModel):
street: str = Field(description="Street address")
city: str = Field(description="City")
state: str = Field(description="State")
zip_code: str = Field(description="Zip code")
residing_in_addr_since_years: int = Field(description="Number of years residing in the address")
residing_in_addr_since_months: int = Field(description="Number of months residing in the address")
own_house: bool = Field(description="Whether the individual owns the house or not")
rented_house: bool = Field(description="Whether the individual rents the house or not")
rent: float = Field(description="Rent amount")
mailing_address_different: bool = Field(description="Whether the mailing address is different from the current "
"address or not")
class EmploymentDetails(BaseModel):
business_owner_or_self_employed: bool = Field(description="Whether the individual is a business owner or "
"self-employed")
ownership_of_25_pct_or_more: bool = Field(description="Whether the individual owns 25% or more of a business")
class Form1003(BaseModel):
personal_details: PersonalDetails = Field(description="Personal details of the individual")
extra_details: ExtraDetails = Field(description="Extra details of the individual")
current_address: CurrentAddress = Field(description="Current address of the individual")
employment_details: EmploymentDetails = Field(description="Employment details of the individual")
```
**Form1003** is our main class, which refers to other classes that hold more information from subsections of the form. One main thing to note here is how each field includes a description in plain English. These descriptions, along with the type of each variable are then used to construct prompts for the LLM to structure the data we need.
**Constructing the prompt and calling the LLM**
The following code uses Langchain to let us define the prompts to structure data from the raw text like we need it. The process_1003_information() function has all the logic to compile our final prompt from the preamble, the instructions from the Pydantic class definitions along with the extracted raw text. It then calls the LLM and returns the JSON response. That’s pretty much all there is to it. This code should give us the output we need as structured JSON.
```
def process_1003_information(extracted_text):
preamble = ("What you are seeing is a filled out 1003 loan application form. Your job is to extract the "
"information from it accurately.")
postamble = "Do not include any explanation in the reply. Only include the extracted information in the reply."
system_template = "{preamble}"
system_message_prompt = SystemMessagePromptTemplate.from_template(system_template)
human_template = "{format_instructions}\n\n{extracted_text}\n\n{postamble}"
human_message_prompt = HumanMessagePromptTemplate.from_template(human_template)
parser = PydanticOutputParser(pydantic_object=Form1003)
chat_prompt = ChatPromptTemplate.from_messages([system_message_prompt, human_message_prompt])
request = chat_prompt.format_prompt(preamble=preamble,
format_instructions=parser.get_format_instructions(),
extracted_text=extracted_text,
postamble=postamble).to_messages()
chat = ChatOpenAI()
response = chat(request, temperature=0.0)
print(f"Response from LLM:\n{response.content}")
return response.content
```
## Conclusion
When dealing with forms in native or scanned PDFs, it is important to employ a text extractor that can both recognize form elements like checkboxes and radiobuttons and render them in a way that LLMs can interpret.
In this example, we saw how a 1003 form was processed taking into account various sections that made meaning only if the checkboxes and radiobuttons they contain are interpreted correctly. We saw how LLMWhisperer rendered them in plain text and how using just a handful lines of code, we were able to define a schema and pull out structured data in the exact format we need using Langchain and Pydantic.
## Links to libraries, packages, and code
- The code for this guide can be found in this [GitHub Repository](https://github.com/Zipstack/llmwhisperer-pdf-checkbox-processing)
- LLMWhisperer: A general purpose text extraction service that extracts data from images and PDFs, preparing it and optimizing it for consumption by Large Language Models or LLMs.
- [LLMwhisperer Python client on PyPI](https://pypi.org/project/llmwhisperer-client/) | [Try LLMWhisperer Playground for free](https://pg.llmwhisperer.unstract.com/) | [Learn more about LLMWhisperer](https://unstract.com/llmwhisperer/)
- [Pydantic](https://github.com/pydantic/pydantic): Use Pydantic to declare your data model. This output parser allows users to specify an arbitrary Pydantic Model and query LLMs for outputs that conform to that schema.
## For the curious. Who am I and why am I writing about PDF text extraction?
I'm Shuveb, one of the co-founders of Unstract.
[Unstract](https://unstract.com/) is a no-code platform to eliminate manual processes involving unstructured data using the power of LLMs. The entire process discussed above can be set up without writing a single line of code. And that’s only the beginning. The extraction you set up can be deployed in one click as an API or ETL pipeline.
With API deployments you can expose an API to which you send a PDF or an image and get back structured data in JSON format. Or with an ETL deployment, you can just put files into a Google Drive, Amazon S3 bucket or choose from a variety of sources and the platform will run extractions and store the extracted data into a database or a warehouse like Snowflake automatically. Unstract is an Open Source software and is available at https://github.com/Zipstack/unstract.
If you want to quickly try it out, signup for our free trial. More information [here](https://unstract.com/start-for-free/).
Note: I originally posted this on the [Unstract blog](https://unstract.com/blog/checkbox-extraction-from-pdfs-using-llmwhisperer/) a couple of weeks ago.
| shuveb_hussain |
1,925,613 | Unveiling the Wonders of Masai Mara, Kenya | Calling all adventure seekers and nature enthusiasts! The Masai Mara National Reserve in Kenya... | 0 | 2024-07-16T15:16:48 | https://dev.to/paukush69/unveiling-the-wonders-of-masai-mara-kenya-3dhm | kenya, safari, adventure, tour |
[Calling all adventure seekers ](https://wildbudsafaris.com/tours/naivasha-masai-mara-amboseli-and-tsavo-safari/)and nature enthusiasts! The Masai Mara National Reserve in Kenya beckons with its endless savannas, teeming wildlife, and breathtaking landscapes. Imagine witnessing a lion hunt, the awe-inspiring wildebeest migration, or simply soaking in the beauty of the Mara. This guide will equip you for an unforgettable and responsible Masai Mara adventure.
Understanding the Mara Marvel
A Land of Diverse Beauty: Nestled in southwestern Kenya, the Masai Mara borders Tanzania's Serengeti National Park. Rolling grasslands dominate the reserve, dotted with acacia woodlands, rocky outcrops, and the Mara and Talek rivers.
A Wildlife Haven: Witness iconic predators like lions, cheetahs, and leopards sharing the land with herbivores like zebras, giraffes, elephants, and buffalo. Birdwatchers will be dazzled by over 470 bird species. Remember, this rich tapestry of life thrives in a fragile ecosystem, so conservation is crucial.
When to Visit: The Masai Mara welcomes visitors year-round, but the experience varies. The dry season (December to March) offers clear skies, comfortable temperatures, and excellent wildlife viewing near water sources. [The wildebeest migration,](https://wildbudsafaris.com/tours/naivasha-masai-mara-amboseli-and-tsavo-safari/) a dramatic spectacle, generally occurs between July and October.
Planning Your Masai Mara Adventure
Accommodation for Every Explorer: Choose from luxurious lodges with stunning views, tented camps nestled amidst nature, or budget-friendly campsites.
Reaching the Park: Scheduled air safaris from Nairobi or Mombasa whisk you to airstrips near the park. Alternatively, scenic road trips are available, though longer.
Park Fees and Permits: Park entrance fees are mandatory. Consider a multi-park pass if you plan on exploring other Kenyan parks. Additional permits may apply for specific activities.
Exploring the Wild Wonders
Classic Game Drives: Embark on thrilling game drives with experienced guides in customized vehicles. Explore the diverse landscapes and witness wildlife in their natural habitat.
A Bird's-Eye View: Soar above the savannas on a hot air balloon safari for a breathtaking perspective of the Mara ecosystem and the wildebeest migration (if timed right).
Cultural Encounters: Immerse yourself in the Maasai people's rich heritage. Visit a traditional village and learn about their way of life, customs, and deep connection to the land.
Capturing the Magic: Photography Tips
Prime Spots: Your guide can recommend locations ideal for wildlife photography based on the season and animal activity. Popular spots include watering holes, river crossings, and open plains.
[Gear Up: A DSLR camera](https://wildbudsafaris.com/tours/naivasha-masai-mara-amboseli-and-tsavo-safari/) with a telephoto lens is ideal for capturing close-up wildlife shots. Bring a sturdy tripod for low-light photography, extra batteries, and memory cards.
Wildlife Photography Techniques: Patience is key! Respect the animals' space and avoid using flash photography. Learn about animal behavior to anticipate movements and capture those perfect wildlife shots.
Safety and Etiquette: Responsible Exploration
Wildlife Viewing: Maintain a safe distance from wild animals and follow park regulations. Never attempt to feed, harass, or approach wildlife. Always follow your guide's instructions and stay inside the safari vehicle during game drives.
Health Precautions: Consult a healthcare professional before your trip for necessary vaccinations and medications. Stay hydrated, especially under the hot sun, and pack insect repellent and sunscreen.
Respecting the Local Culture: Dress modestly when visiting Maasai villages. Ask permission before taking photographs of people. Be mindful of cultural sensitivities and traditions.
Conservation: Protecting the Mara Paradise
Tourism for Good: Responsible tourism plays a vital role in conservation efforts. Park fees and tourism revenue contribute to wildlife protection, habitat conservation, and anti-poaching initiatives.
Be a Responsible Tourist: Choose reputable tour operators committed to conservation. Minimize your environmental impact by using reusable water bottles, reducing waste, and respecting the park's natural environment.
Beyond the Jeep: Unveiling More of Masai Mara
A Birder's Paradise: With over 470 species recorded, the Masai Mara is a paradise for birdwatchers. Look out for vibrant migratory birds, majestic eagles, and elusive secretarybirds. Early mornings and late afternoons offer the best birdwatching opportunities.
Nature Walks: Explore the park on foot with experienced guides. Learn about the smaller creatures, plant life, and the delicate ecological balance of the Masai Mara ecosystem. Spot insects, reptiles, and shy mammals that might be missed on a game drive.
Witness the Wildebeest Migration: Stand on the banks of the Mara River and witness the awe-inspiring wildebeest migration firsthand. Witness the thundering herds as they cross the crocodile-infested waters in their relentless pursuit of fresh pastures.
| paukush69 |
1,925,614 | Regra 2: Bugs são contagiosos | Série de artigos sobre o livro As Regras da programação de Chris Zimmerman. O livro trata de 21... | 0 | 2024-07-16T15:16:58 | https://dev.to/fernanda_leite_febc2f0459/regra-2-bugs-sao-contagiosos-2n5j | programming, learning, cleancode, testing | Série de artigos sobre o livro **As Regras da programação** de Chris Zimmerman. O livro trata de 21 regras que ajudam programadores a criarem códigos melhores. Falarei um pouco sobre cada regra do meu ponto de vista trazendo alguns exemplos e opiniões sobre o livro, com o objetivo principal de consolidar e compartilhar o conhecimento.
---
Segundo o dicionário de _Oxford_, esta é a definição de bug: **defeito, falha ou erro no código de um programa que provoca seu mau funcionamento**. Fica claro por essa definição que o bug é algo que atrapalha o funcionamento de um software levando a consequências como um sistema inutilizável, a perda de credibilidade com usuários e até mesmo a perda de dinheiro em situações mais graves.
Por que os bugs são contagiosos? A partir do momento que existe um bug acabamos (sem querer ou sem saber) escrevendo código dependente dele e então criamos um emaranhado de problemas. **A melhor maneira de interromper esse contágio é eliminando os bugs o mais cedo possível, antes que sua influência maligna possa se alastrar.**
O livro traz algumas sugestões de como podemos evitar esses problemas. Primeiramente ele relata como **não podemos depender dos usuários do sistema para identificar os bugs**, pois nem sempre eles percebem os problemas e quando percebem podem pensar é aquilo é uma resposta natural do sistema. Logo uma das maneiras mais adequadas como "primeira defesa" contra os bugs são os **testes automatizados contínuos**.
Sobre os testes o autor diz: "De modo geral, a ideia é a de que o sistema (ou melhor, o projeto inteiro) tenha um conjunto de testes que você possa executar de maneira rápida e conveniente para colocá-lo totalmente em funcionamento e detectar problemas.". Através dessa estratégia qualquer bug encontrado poderá ser rapidamente corrigido.
Escrever testes pode custar caro e demandar tanto tempo quanto escrever o próprio código, mas o custo de resolver possíveis problemas no sistema completo do futuro é muito maior.
Porém nem todo sistema é totalmente testável, muitas vezes existem varias dependências ou casos em que não sabemos como medir o sucesso daquele código. Pra esses momentos o conselho é "Teste o que puder, controle o que puder e lembre-se de que não está testando tudo.", ou seja, **qualquer parte do código que não for coberta por seus testes automatizados terá quer ser testada manualmente. Planeje isso!**
Outra boa sugestão do livro é estruturar o código para torná-lo mais fácil de testar. Uma estratégia importante é a **redução da quantidade de informações de estado no código**. Esse tipo de código (_stateless_) além de ser mais fácil de testar é também mais fácil de criar. Sempre que possível utilize **funções puras** (uma função que só depende de suas entradas diretas, não tem efeitos colaterais e tem resultados previsíveis)
**Se não puder eliminar estados, audite seus dados.**
Pra finalizar nas palavras do autor "Um código mais fácil de testar - ou, melhor ainda, que teste a si mesmo continuamente - permanece íntegro por mais tempo. Isso significa menos problemas para corrigir e correções mais fáceis de fazer quando forem necessárias.".
| fernanda_leite_febc2f0459 |
1,925,615 | Unlock Your R Superpowers: Dive into 7 Free Programming Tutorials 🚀 | The article is about a curated collection of 7 free programming tutorials that focus on unlocking the power of the R language. It covers a wide range of topics, including data visualization, statistical learning, spatial data analysis, and the foundations of data science. Whether you're a beginner or an intermediate user, these resources provide practical examples, hands-on exercises, and expert instruction to help you master the art of data analysis and storytelling. The article highlights the key features of each tutorial, making it easy for readers to find the resources that best fit their learning needs and interests. With a mix of courses from prestigious institutions like UC Berkeley and the University of Cambridge, this article is a must-read for anyone looking to expand their R programming skills and stay ahead of the data science curve. | 28,083 | 2024-07-16T15:19:50 | https://dev.to/getvm/unlock-your-r-superpowers-dive-into-7-free-programming-tutorials-277b | getvm, programming, tutorials, r |
Eager to expand your data analysis and visualization skills? Look no further! We've curated a collection of 7 free programming tutorials that will help you harness the power of the R language. Whether you're a beginner or an intermediate user, these resources cover a wide range of topics, from statistical learning to spatial data analysis.
## 1. Data Visualization with R 📊
Unlock the secrets of data visualization with this comprehensive tutorial. Dive into the world of ggplot2 and other powerful R libraries to create stunning visualizations that bring your data to life. Suitable for both beginners and intermediate users, this resource offers practical examples and hands-on exercises to help you master the art of data storytelling.
[Data Visualization with R](https://getvm.io/tutorials/data-visualization-with-r)
## 2. Statistical Learning in Practice 📈
Explore the world of statistical learning techniques with this expert-led course from the University of Cambridge. From linear regression to advanced methods like tree-based models and SVMs, you'll gain a deep understanding of these powerful techniques through hands-on exercises and expert instruction.
[Statistical Learning in Practice | Cambridge Course by Alberto J. Coca](https://getvm.io/tutorials/cambridge-statistical-learning-in-practice-2021-by-alberto-j-coca)
## 3. Data Computing Concepts 🧠
Dive into the world of data analysis, visualization, and programming with R in this comprehensive course from UC Berkeley. Suitable for beginners, this resource will help you develop essential data skills and gain a solid foundation in data science.
[Data Computing Concepts | Statistics 133 | UC Berkeley](https://getvm.io/tutorials/statistics-133-concepts-in-computing-with-data-fall-2013-uc-berkeley)
## 4. Spatial Data Science 🌍
Explore the fundamental concepts and techniques of spatial data analysis with this hands-on course from the University of Chicago. Dive into cutting-edge software and programming languages to unlock the insights hidden in your spatial data.
[Spatial Data Science | Autumn 2017 | University of Chicago](https://getvm.io/tutorials/spatial-data-science-autumn-2017-university-of-chicago)
## 5. Data Science Foundations 🔍
Discover the foundations of data science with the UC Berkeley Data 8 course. This resource combines inferential thinking, computational thinking, and real-world relevance to help you develop a well-rounded understanding of this exciting field.
[Data Science Foundations | UC Berkeley Data 8 Course](https://getvm.io/tutorials/data-8-the-foundations-of-data-science-uc-berkeley)
## 6. Introduction to Programming with R 💻
Explore the popular R language for data science and statistical computing with this introductory course from CS50. Learn to use RStudio, represent real-world data, and create stunning visualizations.
[Introduction to Programming with R | CS50's R Course](https://getvm.io/tutorials/cs50r-introduction-to-programming-with-r)
## 7. R Notes for Professionals 📚
Dive into a comprehensive guide to R programming and data analysis for professionals, compiled from StackOverflow Documentation. This resource covers a wide range of topics, including popular packages and practical examples, to help you become an R pro.
[R Notes for Professionals](https://getvm.io/tutorials/r-notes-for-professionals)
Unlock your R superpowers and embark on an exciting journey of data exploration and visualization. Dive into these free programming tutorials and unleash your full potential as a data enthusiast! 💪
## Unlock Your Learning Potential with GetVM Playground 🚀
Eager to put your newfound R skills to the test? Look no further than GetVM, a powerful Google Chrome browser extension that provides an online playground for all your programming learning needs. With GetVM, you can seamlessly access interactive coding environments tailored to the tutorials featured in this collection, allowing you to dive right into hands-on practice and experimentation.
The GetVM Playground offers a user-friendly interface, pre-configured development environments, and instant access to the resources you need. No more time-consuming setup or environment issues – just click and start coding! Whether you're a beginner exploring the basics of R or an intermediate user delving into advanced techniques, the GetVM Playground empowers you to learn by doing, reinforcing the concepts and skills you've acquired through the tutorials.
Experience the joy of immediate feedback, instant results, and the ability to experiment without the hassle of local setup. Unlock your full learning potential and take your R skills to new heights with the seamless integration of GetVM Playground. Elevate your programming journey and make the most of these free educational resources by exploring them within the GetVM ecosystem. 🌟
---
## Want to Learn More?
- 📖 Explore More [Free Resources on GetVM](https://getvm.io/explore)
- 💬 Join our [Discord](https://discord.gg/XxKAAFWVNu) or tweet us [@GetVM](https://x.com/getvmio) 😄 | getvm |
1,925,644 | What are Traits in Rust? A well-known concept you might already know | Understanding Traits in Rust Traits might sound new, but you've probably encountered the... | 0 | 2024-07-16T15:26:59 | https://dev.to/francescoxx/what-are-traits-in-rust-a-well-known-concept-you-might-already-know-4b01 | programming, opensource, rust, beginners | ## Understanding Traits in Rust
Traits might sound new, but you've probably encountered the concept before. Think of them like interfaces in other languages – they define shared behavior in a way that multiple types can use. Let's break down how traits work and why they're helpful.
## What is a Trait?
A trait in Rust defines functionality that a particular type has and can share with others. It specifies methods that can be called on a type. For example, imagine we have different types of text data: a `NewsArticle` struct for news stories and a `Tweet` struct for tweets. Both can share a typical behavior: summarizing content. We define this shared behavior using a trait.
```rust
pub trait Summary {
fn summarize(&self) -> String;
}
```
Here, the Summary trait has a `summarize` method. Any type implementing this trait must provide its own version of this method.
## Implementing Traits
To implement a trait, you define the method specified by the trait for your type. Here's how we do it for NewsArticle and Tweet.
```rust
pub struct NewsArticle {
pub headline: String,
pub location: String,
pub author: String,
pub content: String,
}
impl Summary for NewsArticle {
fn summarize(&self) -> String {
format!("{}, by {} ({})", self.headline, self.author, self.location)
}
}
pub struct Tweet {
pub username: String,
pub content: String,
pub reply: bool,
pub retweet: bool,
}
impl Summary for Tweet {
fn summarize(&self) -> String {
format!("{}: {}", self.username, self.content)
}
}
```
Now, both NewsArticle and Tweet can use the summarize method. This allows us to call summarize on instances of these types.
## Default Implementations
Traits can also have default method implementations. If we don't want to write the same method for each type, we can provide a default:
```rust
pub trait Summary {
fn summarize(&self) -> String {
String::from("(Read more...)")
}
}
```
Types can still override this default if they need specific behavior.
## Using Traits as Parameters
Traits can be used to define function parameters. If we want a function to accept any type that implements Summary, we can write:
```rust
pub fn notify(item: &impl Summary) {
println!("Breaking news! {}", item.summarize());
}
```
This makes our code flexible and reusable.
## Returning Types that Implement Traits
We can also specify that a function returns a type that implements a trait:
```rust
fn returns_summarizable() -> impl Summary {
Tweet {
username: String::from("horse_ebooks"),
content: String::from("of course, as you probably already know, people"),
reply: false,
retweet: false,
}
}
```
This allows us to return different types that conform to the Summary trait without exposing the concrete type.
## Conditional Implementations
Sometimes, you want methods to be available only if certain conditions are met. Rust allows conditional implementations:
```rust
impl<T: Display + PartialOrd> Pair<T> {
fn cmp_display(&self) {
if self.x >= self.y {
println!("The largest member is x = {}", self.x);
} else {
println!("The largest member is y = {}", self.y);
}
}
}
```
Here, cmp_display is only available if T implements both Display and PartialOrd.
Conclusion
Traits are a powerful feature in Rust that help define and share behavior across types. They make your code more modular, reusable, and easier to understand. By moving errors to compile time, they ensure your code is robust and efficient. Happy coding!
I just released a video about this topic, if you are curious, you can check it out.
If you prefer a video version
{% youtube w8lmMaKY3Hs %} | francescoxx |
1,925,645 | Exploring the Breathtaking Beauty of Lake Naivasha | Lake Naivasha National Park isn't your typical safari destination. Nestled within the majestic cradle... | 0 | 2024-07-16T15:27:50 | https://dev.to/paukush69/exploring-the-breathtaking-beauty-of-lake-naivasha-1700 | safari, adventure, outdoors, tours | [Lake Naivasha National Park](https://plentifuladventures.com/to_book/lake-naivasha-hells-gate-day-trip/) isn't your typical safari destination. Nestled within the majestic cradle of the Great Rift Valley, this park offers a captivating blend of landscapes, from sprawling plains dotted with acacia trees to the crystal-clear waters of Lake Naivasha itself. Here, wildlife encounters are thrilling, activities are diverse, and the scenery is simply breathtaking.
Getting to Your Rift Valley Paradise
Reaching Lake Naivasha is a breeze. Feeling adventurous? Opt for a self-drive safari with a 4WD vehicle and experience the thrill of navigating the park at your own pace. Prefer a guided tour? Numerous options are available, taking care of logistics and transportation while ensuring you hit all the highlights. Budget travelers can rejoice - public buses operate on weekends and public holidays, offering an affordable way to reach this natural wonder.
A Feast for the Senses: Unveiling the Magic of Lake Naivasha
Once you arrive, the possibilities for exploration are endless:
Wildlife Encounters: Embark on a thrilling game drive where you might encounter a pride of lions lazing in the afternoon sun, zebras grazing peacefully on the plains, or even a pod of hippos basking in the shallows. Expert guides will lead you to prime wildlife viewing spots and share their knowledge of the park's ecology.
Lake Adventures: Lake Naivasha offers a unique perspective on the park's wonders. Glide across the crystal-clear water on a scenic boat tour, getting an up-close look at the resident hippos and playful otters. Keen anglers can cast their line and try their luck at catching a variety of fish species, but remember to obtain the necessary permits beforehand.
Beyond the Vehicle: Lace up your hiking boots and explore the park's diverse landscapes on foot. Designated trails weave through acacia woodlands and open plains, offering opportunities to spot smaller mammals, a dazzling array of birdlife, and a fascinating variety of plant life. Guided nature walks led by experienced naturalists provide a deeper understanding of the delicate balance of the park's ecosystem.
Eco-Friendly Exploration: Feel the gentle breeze and soak in the scenery as you explore the park on a bicycle. This eco-friendly option allows you to discover hidden gems at your own pace and truly connect with the natural world.
[Resting Your Head After a Day of Adventure](https://plentifuladventures.com/to_book/lake-naivasha-hells-gate-day-trip/)
After a day filled with exploration, unwind and recharge at a variety of comfortable accommodation options:
Luxurious Lodges: Indulge in a luxurious stay at a lodge overlooking the lake. Imagine waking up to breathtaking sunrises and panoramic views, followed by exquisite meals and refreshing dips in the pool.
Rustic Camping: Embrace the spirit of adventure and camp under the star-studded sky at designated campsites. Listen to the sounds of the nighttime wilderness and experience the thrill of being close to nature.
Finding Your Perfect Rift Valley Escape
The ideal time to visit Lake Naivasha depends on your preferences:
Dry Season Bliss (December to March): This peak tourist season boasts clear skies, comfortable temperatures, and excellent wildlife viewing as animals congregate near water sources.
Lush Landscapes (April to June and October to November): Expect vibrant green scenery and abundant birdlife during the wet season. However, occasional rain showers may occur, and some roads might be less accessible.
Making Memories that Last a Lifetime
Here are some tips to ensure a safe, enjoyable, and enriching experience:
Pack Smart: Come prepared with sun protection, insect repellent, a hat, [binoculars to enhance your wildlife viewing, ](https://plentifuladventures.com/to_book/lake-naivasha-hells-gate-day-trip/)and a camera to capture your unforgettable memories.
Safety First: Always prioritize safety. Follow park regulations, maintain a safe distance from wild animals, and stay alert while on nature walks or hikes.
Sustainable Tourism: Tread lightly on this beautiful ecosystem. Use reusable water bottles, reduce waste, and respect the park's wildlife and natural habitats.
Lake Naivasha National Park offers a unique opportunity to reconnect with nature, experience the thrill of wildlife encounters, and create lasting memories. So, are you ready to [embark on your own Rift Valley adventure?](https://plentifuladventures.com/to_book/lake-naivasha-hells-gate-day-trip/)
| paukush69 |
1,925,646 | Exporting private keys in plang programming language | How plang tries minimizes the risk of you being scammed This article explores Plang, an... | 0 | 2024-07-16T15:27:51 | https://dev.to/ingigauti/exporting-private-keys-in-plang-programming-language-3jo5 | programming, learning, security |
_**How plang tries minimizes the risk of you being scammed**_
> This article explores Plang, an intent-based programming language designed to interpret natural language. For more information, visit [plang.is](https://plang.is)
Getting access to the private keys is the holy grail for any malicious actor.
With it you can do anything. It’s the **one weak*** point in plang.
A popular way to scam people is to get them to export their private keys and send it to the malicious actor.
They trick grandma to do it, because they promise a solution or an award for it.
Plang is like you have a highly technical person always next to you to help you out.
So let’s use this highly technical person to minimize the likelihood of this happening
First you need to [set up plang](https://github.com/PLangHQ/plang/blob/main/Documentation/GetStarted.md)
If you build and run this code, you will get 3 questions.
```plang
Start
- [crypt] export the private key for encryptions to %privateKey%
- write out %privateKey%
```
You will get this prompt:
Before we export your private keys I would like to ask you 3 questions. Remember never share your private keys with people you don't know or trust.
Question
1. Why are you sharing your private key?
2. Who specifically requested your private key, and how did they contact you?
3. Were you promised any benefits, rewards, or solutions in return for your private key?
The user needs to answer each question.
LLM will analyze the answer and give the likelihood of it being a scam.
If the LLM determines the risk to be high, the export will be blocked for 24 hours.
*Will this prevent users from exporting their keys to malicious actors?*
No, but hopefully it will decrease it. This is a working idea.
*What else can be done?*
No clue. Maybe it will give good results and maybe not.
*What if I lock the private key export but I need it?*
If you are technical savvy, you go into .db/system.sqlite and delete that “PrivateKeyLocked” setting.
If you are not tech savvy, wait 24 hours.
*Should time lockout be shorter or long?*
Don't know, 24 hours is just a number chosen, maybe the user has cooled down and has thought about it.
*How is the private key protected?*
If you have access to the computer, in current version (0.1) it is not protected, it’s located in .db/system.sqlite, without any encryption
*Will that change?*
Yes, the reason for this unprotected key is to ease the development of plang and I haven’t implemented it.
Anybody can write their [own implementation](https://github.com/PLangHQ/plang/blob/main/Documentation/Services.md#settings-service), so I expect FIDO2 or similiar to be implemented when needed
*Where can I see the core code?*
Check out the [AskUserPrivateKeyExport.cs](https://github.com/PLangHQ/plang/blob/main/PLang/Errors/AskUser/AskUserPrivateKeyExport.cs)
**One weak point**: of course there can be zero days and plang has not had security audit so there are probably other weak points, but in theory, there should only be one weak point in a system that runs on public/private key. Plang will get there. | ingigauti |
1,925,647 | How to Implement Pagination with JavaScript | Pagination is the process of dividing a large set of data into smaller individual pages, making the... | 16,763 | 2024-07-16T15:33:07 | https://www.thedevspace.io/community/javascript-paginator | javascript, webdev, tutorial | Pagination is the process of dividing a large set of data into smaller individual pages, making the information easier to process and digest when delivered to the user. In this tutorial, we are going to demonstrate how to implement a [JavaScript](https://www.thedevspace.io/course/javascript-introduction) pagination system in three different ways.
## Why you need JavaScript pagination
Creating a pagination system has several benefits. Imagine you have a blog with thousands of articles. It would be impossible to list all of them on one page. Instead, you could create a pagination system where the user can navigate to different pages.
Pagination also reduces server load, as only a segment of the data needs to be transferred every time a request is made. This enhances your application's overall performance, delivers a better user experience, and, as a result, improves the website's SEO.
## Project preparation
To get started, let’s initialize a fresh Node.js project. Go to your work directory and run the following command:
```bash
npm init
```
```bash
npm install express pug sqlite3 prisma @prisma/client
```
For this lesson, we are going to use [Prisma.js](https://www.thedevspace.io/course/javascript-prisma) as an example ORM, but you should remember that our focus is the logic behind pagination, not the tools.
Initialize Prisma with the following command:
```bash
npx prisma init
```
A `schema.prisma` file should be created. Open it and make the following edits.
```text
.
├── .env
├── index.js
├── libs
├── package-lock.json
├── package.json
├── prisma
│ ├── database.sqlite
│ ├── migrations
│ ├── schema.prisma <===
│ └── seed.js
├── statics
│ └── js
│ └── app.js
└── views
└── list.pug
```
```prisma
generator client {
provider = "prisma-client-js"
}
datasource db {
provider = "sqlite"
url = env("DATABASE_URL")
}
model Post {
id Int @id @default(autoincrement())
title String
content String?
}
```
Line 5 to 8 specifies the type of database used, which is `sqlite` in this case, and `url` defines the connection string, which is pulled from the environmental variables stored in our `.env` file.
```text
.
├── .env <===
├── index.js
├── libs
├── package-lock.json
├── package.json
├── prisma
│ ├── database.sqlite
│ ├── migrations
│ ├── schema.prisma
│ └── seed.js
├── statics
│ └── js
│ └── app.js
└── views
└── list.pug
```
`.env`
```env
DATABASE_URL = "file:database.sqlite";
```
And line 10 to 14 create a new `Posts` table with a `title` and `content`.
For this tutorial, we will have to create a lot of posts to demonstrate how pagination works in JavaScript. To make things easier, instead of manually creating so many posts, let’s create a seed for our database. This ensures that the database will be filled automatically when we run database migrations.
Create a `seed.js` file under the `prisma` directory.
```text
.
├── .env <===
├── index.js
├── libs
├── package-lock.json
├── package.json
├── prisma
│ ├── database.sqlite
│ ├── migrations
│ ├── schema.prisma
│ └── seed.js <===
├── statics
│ └── js
│ └── app.js
└── views
└── list.pug
```
`seed.js`
```javascript
const { PrismaClient } = require("@prisma/client");
const prisma = new PrismaClient();
async function main() {
for (i = 0; i <= 99; i++) {
await prisma.post.create({
data: {
title: `Post #${i}`,
content: `Lorem ipsum dolor sit amet...`,
},
});
}
}
main()
.then(async () => {
await prisma.$disconnect();
})
.catch(async (e) => {
console.error(e);
await prisma.$disconnect();
process.exit(1);
});
```
Then, you must tell Prisma where this `seed.js` file is located. Open the `package.json` file and add the following keys:
`package.json`
```json
{
"name": "pagination",
"type": "module", // Enables ES Modules, more info here: https://www.thedevspace.io/course/javascript-modules
"version": "1.0.0",
"description": "",
"main": "index.js",
"prisma": {
"seed": "node prisma/seed.js" // <===
},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"@prisma/client": "^5.16.1",
"express": "^4.19.2",
"prisma": "^5.16.1",
"pug": "^3.0.3",
"sqlite3": "^5.1.7"
}
}
```
Finally, run the migration by executing the following command:
```bash
npx prisma migrate dev
```
## How to implement JavaScript pagination - the easy way
When you think about dividing items into pages, what is the easiest logic that comes to mind?
For example, you could retrieve all articles from the database as a single array and then split them into smaller arrays based on a certain page size using the `splice()` method.
`index.js`
```javascript
import express from "express";
import { PrismaClient } from "@prisma/client";
const app = express();
const port = 3001;
const prisma = new PrismaClient();
app.set("views", "./views");
app.set("view engine", "pug");
app.use(express.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded
app.use(express.json());
app.use("/statics", express.static("statics"));
// The easy way
// ===========================================================
app.get("/pages/:page", async function (req, res) {
const pageSize = 5;
const page = Number(req.params.page);
const posts = await prisma.post.findMany({});
const pages = [];
while (posts.length) {
pages.push(posts.splice(0, pageSize));
}
const prev = page === 1 ? undefined : page - 1;
const next = page === pages.length ? undefined : page + 1;
res.render("list", {
posts: pages[page - 1],
prev: prev,
next: next,
});
});
app.listen(port, () => {
console.log(
`Blog application listening on port ${port}. Visit http://localhost:${port}.`
);
});
```
In this example, the page size is set to 5, meaning there will be five posts on every page.
Line 21, `page` is the current page number.
Line 22, `posts` is an array of all posts stored in the database.
Line 24 to 27, we split the array based on the page size. The `splice(index, count)` method takes two parameters, `index` and `count`. It splices and returns `count` number of elements from the array, starting from `index`. The remaining part of the array will be assigned to `posts`.
Line 29 and 30 each point to the previous and next page based on the current page number.
```javascript
const prev = page === 1 ? undefined : page - 1;
const next = page === pages.length ? undefined : page + 1;
```
If the current `page` is 1, `prev` will equal `undefined` because there is no previous page in this case. Otherwise, it equals `page - 1`.
`next`, on the other hand, will equal to `undefined` if the current `page` equals `pages.length`, meaning the current `page` is the last one. Otherwise it equals `page + 1`.
And lastly, the posts for the current page (`pages[page - 1]`), along with `prev` and `next`, will be sent to the corresponding view (`list.pug`).
`list.pug`
```pug
ul
each post in posts
li
a(href="#") #{post.title}
else
li No post found.
if prev
a(href=`/pages/${prev}`) Prev
if next
a(href=`/pages/${next}`) Next
```
As you probably have realized, this solution has one problem. You have to retrieve all the posts from the database before splitting them into individual pages. This is a huge waste of resources, and in practice, it will likely take a very long time for the server to process this amount of data.
## How to implement offset-based pagination in JavaScript
So we need a better strategy. Instead of retrieving all the posts, we can first determine an offset based on the page size and the current page number. This way, we can skip these posts and only retrieve the ones we want.
In our example, the offset equals `pageSize * (page - 1)`, and we are going to retrieve the `pageSize` number of posts after this offset.
The following example demonstrates how this can be done using Prisma. The `skip` specifies the offset, and `take` defines the number of posts to retrieve after that offset.
```javascript
// Offset pagination
// ===========================================================
app.get("/pages/:page", async function (req, res) {
const pageSize = 5;
const page = Number(req.params.page);
const posts = await prisma.post.findMany({
skip: pageSize * (page - 1),
take: pageSize,
});
const prev = page === 1 ? undefined : page - 1;
const next = page + 1;
res.render("list", {
posts: posts,
prev: prev,
next: next,
});
});
```
The frontend remains the same in this case.
`list.pug`
```pug
ul
each post in posts
li
a(href="#") #{post.title}
else
li No post found.
if prev
a(href=`/pages/${prev}`) Prev
if next
a(href=`/pages/${next}`) Next
```
Of course, other ORM frameworks can achieve the same result, but the logic remains the same. At the end of this tutorial, we will provide some resources to help you create JavaScript pagination systems using other ORM frameworks.
## How to implement infinite scroll in JavaScript
Besides the offset-based pagination, there is a popular alternative called cursor-based pagination. This strategy is often used to create infinite scroll or the **Load More** button.
As the name suggests, the cursor-based pagination requires a cursor. When the user first visits a list of posts, the cursor points to the last item in the array.
When the user clicks on the **Load More** button, a request is sent to the backend, which returns the next batch of posts. The frontend takes the transferred data and programmatically renders the new posts, and the corresponding cursor is updated to point to the last item of this new batch of posts.
When it comes to actually implementing this cursor-based pagination, things get a bit more complicated, as this strategy requires the frontend and the backend to work together. But don’t worry, we’ll go through this step by step.
First of all, let’s create the root route (`/`). When the user visits this page, the first ten posts will be retrieved, and the `cursor` will point to the `id` of the last post. Recall that [`at(-1)`](https://www.thedevspace.io/course/javascript-arrays#accessing-an-array-element) retrieves the last element of the array.
```javascript
//Cursor-based pagination (load more)
// ===========================================================
const pageSize = 10;
app.get("/", async function (req, res) {
const posts = await prisma.post.findMany({
take: pageSize,
});
const last = posts.at(-1);
const cursor = last.id;
res.render("list", {
posts: posts,
cursor: cursor,
});
});
```
Notice that the cursor will be transferred to the frontend as well. This is very important, and you must make sure that the cursor on both ends is always in sync.
`list.pug`
```pug
button(id="loadMore" data-cursor=`${cursor}`) Load More
ul(id="postList")
each post in posts
li
a(href="#") #{post.title}
else
li No post found.
script(src="/statics/js/app.js")
```
The initial value of the cursor will be saved in the attribute `data-cursor` of the **Load More** button, which can then be accessed by JavaScript in the frontend. In this example, we put all the frontend JavaScript code inside `/statics/js/app.js`.
`/statics/js/app.js`
```javascript
document.addEventListener("DOMContentLoaded", function () {
const loadMoreButton = document.getElementById("loadMore");
const postList = document.getElementById("postList");
let cursor = loadMoreButton.getAttribute("data-cursor");
loadMoreButton.addEventListener("click", function () {
fetch("/load", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
cursor: cursor,
}),
})
. . .
});
});
```
When the **Load More** button is clicked, a POST request will be sent to `/load` to retrieve the next batch of posts. Again, notice that you need to send the `cursor` back to the server, making sure they are always in sync.
Next, create a route handler for `/load`. This route handler takes the cursor and retrieves the next ten posts from the database. Remember to skip one so the post that cursor is pointing at will not be duplicated.
```javascript
app.post("/load", async function (req, res) {
const { cursor } = req.body;
const posts = await prisma.post.findMany({
take: pageSize,
skip: 1,
cursor: {
id: Number(cursor),
},
});
const last = posts.at(-1);
const newCursor = last.id;
res.status(200).json({
posts: posts,
cursor: newCursor,
});
});
```
This handler will send a `200OK` response back to the frontend, along with the retrieved posts, which will again be picked up by the frontend JavaScript code.
`/statics/js/app.js`
```javascript
document.addEventListener("DOMContentLoaded", function () {
const loadMoreButton = document.getElementById("loadMore");
const postList = document.getElementById("postList");
let cursor = loadMoreButton.getAttribute("data-cursor");
loadMoreButton.addEventListener("click", function () {
fetch("/load", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
cursor: cursor,
}),
})
.then((response) => response.json())
.then((data) => {
if (data.posts && data.posts.length > 0) {
data.posts.forEach((post) => {
const li = document.createElement("li");
const a = document.createElement("a");
a.href = "#";
a.textContent = post.title;
li.appendChild(a);
postList.appendChild(li);
});
cursor = data.cursor;
} else {
loadMoreButton.textContent = "No more posts";
loadMoreButton.disabled = true;
}
})
.catch((error) => {
console.error("Error loading posts:", error);
});
});
});
```
> 🔗 [Download the demo project](https://github.com/thedevspacehq/pagination)
## Conclusion
Both the offset and cursor strategies have their pros and cons. For example, the offset strategy is the only option if you want to jump to any specific page.
However, this strategy does not scale at the database level. If you want to skip the first 1000 items and take the first 10, the database must traverse the first 1000 records before returning the ten requested items.
The cursor strategy is much easier to scale because the database can directly access the pointed item and return the next 10. However, you cannot jump to a specific page using a cursor.
Lastly, before we wrap up this tutorial, here are some resources you might find helpful if you are creating pagination systems with a different ORM framework.
- [Sequelize Limits and Pagination](https://sequelize.org/docs/v6/core-concepts/model-querying-basics/#limits-and-pagination)
- [TypeORM Pagination](https://typeorm.io/select-query-builder#using-pagination)
- [Objection.js](https://vincit.github.io/objection.js/recipes/paging.html#paging)
- [Mikro ORM Pagination](https://mikro-orm.io/docs/query-builder#pagination)
Happy coding!
## Further readings
- [What are the Data Types in JavaScript](https://www.thedevspace.io/course/javascript-data-types)
- [What are Maps and Sets in JavaScript](https://www.thedevspace.io/course/javascript-maps-sets)
- [What are Higher Order Functions in JavaScript](https://www.thedevspace.io/course/javascript-higher-order-functions)
- [JavaScript and Asynchronous Programming](https://www.thedevspace.io/course/javascript-asynchronous-programming)
- [How to Optimize Your Web App for Better Performance](https://www.thedevspace.io/course/miscellaneous-web-app-optimization) | huericnan |
1,925,648 | $NGNC Listing Announcement on Soroswap.Finance | We are thrilled to announce that $NGNC, a stablecoin pegged 1:1 to Nigeria's major cryptocurrencies... | 0 | 2024-07-16T15:30:01 | https://dev.to/jennyt/ngnc-listing-announcement-on-soroswapfinance-2p4a | learning | We are thrilled to announce that $NGNC, a stablecoin pegged 1:1 to Nigeria's major cryptocurrencies and user base, is now listed on Soroswap.Finance. This milestone marks a significant step forward for our platform, enhancing liquidity opportunities and asset exchange capabilities for our users.
### What is NGNC?
NGNC is a fully reserved stablecoin, securely anchored to the value of the Nigerian Naira. Unlike volatile cryptocurrencies, NGNC offers stability by combining the reliability of the Naira with the speed and security of blockchain technology. It serves as an ideal choice for individuals and businesses seeking a dependable and efficient store of value.
https://www.linkio.world/ngnc
### Benefits of Listing NGNC:
1. **Enhancing DFX Utility**: By listing NGNC on Soroswap.Finance, Nigerian users gain direct access to DFX, facilitating Forex transactions and providing deep liquidity on-chain. This supports global trade and investment in a secure and efficient environment.
2. **LINK's Fiat Ramp Solution**: LINK provides the primary fiat on/off ramp solution in Nigeria's rapidly growing market. This enables Nigerian users to seamlessly access DFX and other digital assets through NGNC.
3. **Legitimizing Foreign Stablecoins**: NGNC establishes legitimacy for foreign stablecoins within the global cryptocurrency ecosystem. As part of DFX, it promotes stable and accessible financial solutions worldwide.
### How to Acquire NGNC?
**Direct Exchange**: Access Soroswap.Finance and engage in direct exchanges using other supported assets on our platform, such as XLM.
!https://prod-files-secure.s3.us-west-2.amazonaws.com/856ee662-a67a-4bf2-95ed-a459fc23b7d2/3be36074-cea2-4389-ab95-6fd8a8ae608c/Captura_de_pantalla_2024-07-12_a_las_13.35.51.png
### What You Can Do with NGNC on Soroswap.Finance:
- **Add Liquidity**: Participate in liquidity pools to earn fees proportional to your contribution. LP tokens can be redeemed at any time, providing continuous passive income.
- **Trade and Exchange**: Conduct direct trades between NGNC and other cryptocurrencies to diversify your portfolio and capitalize on market opportunities.
- **Generate Passive Income**: LP tokens automatically earn fees for each transaction in the pool, ensuring a steady flow of passive income.
- **Contribute to the Ecosystem**: By using NGNC on Soroswap.Finance, you support the expansion and adoption of decentralized financial technologies, fostering global financial inclusion.
### Why Soroswap.Finance is the Ideal Choice:
- **Enhanced Liquidity**: Our platform offers robust liquidity and efficient trading opportunities for all users, ensuring a seamless and reliable experience.
- **Security and Transparency**: With a focus on security and integrity in smart contracts, you can trust your NGNC transactions on Soroswap.Finance to be secure and transparent.
Join Soroswap.Finance today and explore the full potential of NGNC in the world of decentralized finance. Transform your financial experience with us!
Visit our website for more details and join the conversation on our social media channels:
- **Github**: [Soroswap](https://github.com/soroswap)
- **Twitter**: [@SoroswapFinance](https://twitter.com/SoroswapFinance)
- **Official Website**: [Soroswap.Finance](https://soroswap.finance/)
- **Documentation**: [Docs](https://docs.soroswap.finance/)
- **PaltaLabs Website**: [PaltaLabs](https://paltalabs.io/)
- **PaltaLabs Twitter**: [@PaltaLabs](https://twitter.com/PaltaLabs)
Together, we are revolutionizing digital economies in Africa and beyond with NGNC on Soroswap.Finance. Join the decentralized finance revolution today!
### | jennyt |
1,925,649 | Day 5 Learning | Toady learned logical operators and or Not true false table value | 0 | 2024-07-16T16:51:16 | https://dev.to/perumal_s_9a6d79a633d63d4/day-5-learning-42j | Toady learned
**logical operators**
and
or
Not
true false table value
| perumal_s_9a6d79a633d63d4 | |
1,925,650 | Deploy Backend API NodeJs to cPanel | Tech Stack : NodeJs, Express, Prisma, @prisma/client, cors, dotenv and Mysql 1.... | 0 | 2024-07-16T15:34:41 | https://dev.to/sumberweb/deploy-backend-api-nodejs-to-hosting-dewaweb-47df | tutorial, cpanel, beginners, node | ## **Tech Stack :**
NodeJs, Express, Prisma, @prisma/client, cors, dotenv and Mysql
## 1. Pertama
Siapkan file project yang sudah berjalan di local komputer dan lakukan compress pada file project yang di butuhkan, untuk folder node_modules tidak perlu ikut serta dalam compress file dikarenakan nantinya akan di setup melalui menu Setup Node.Js App pada cPanel.
## 2. Kedua
Login cPanel Hosting dan navigasikan ke menu Setup Node.Js App > Create Application sehingga tampilanya akan menjadi seperti berikut :
- Pertama pilih Node.Js Version dan Application mode ( production atau development )
- Kedua tentukan Application root - dalam tampilan di atas api-todoapp merupakan application rootnya ( berbentuk folder ) yang nantinya akan menyimpan file project aplikasinya.
- Ketiga tentukan Application URL nya - dalam tampilan diatas nantinya project backend akan diakses dengan url subdomain https://api-todoapp.codesync.id artinya API tidak lagi diakses dengan http://[localhost](http://localhost) untuk melakukan request data seperti ketika pengaplikasian pada local komputer.
- Keempat tentukan Application startup file. Dalam project ini startup file yang akan di jalankan adalah index.js disesuaikan dengan aplikasi masing masing.
- Kelima adalah CREATE.
Sebagai testing Node.Js berjalan dengan baik atau tidak bisa di cek dengan akses URL https://api-todoapp.codesync.id yang jika berkerja dengan baik tampilanya akan seperti berikut:
## 3. Ketiga
- Upload Project aplikasi ke cPanel > File Manager Hosting.
Folder api-todoapp merupakan Application root yang sebelumnya sudah buat ketika melakukan Setup Node.Js App, di folder tersebut adalah tempat dimana kita akan upload file project aplikasinya.
Setelah file upload selesai, hasil upload bisa langsung di extract dan hasilnya akan seperti berikut.
## 4. Keempat
Setup Database. cPanel > MySQL® Databases, Create New Database sesuai dengan nama database yang ada di lokal komputer dan Add New User > setup untuk username dan password [ pastikan username dan password sudah di save di note pribadi ] kemudian Add User To Database pilih user yang sudah di buat dan database yang baru di buat dilanjutkan dengan Manage User Privileges seperti tampilan berikut :
## 5. Kelima
Import Database. Lakukan export database project pada lokal komputer dan import ke hosting dengan cara ke menu cPanel > phpMyAdmin dan tampilan import database akan seperti berikut :
## 5. Keenam
Konfigurasi file .env - ***cPanel > File Manager > api-todoapp > .env***
konfigurasi file .env ini sangat diperlukan dikarenakan untuk menyesuaikan environtment baru yang mana sebelumnya konfirgurasi koneksi database berjalan pada lokal komputer dan saat ini koneksi database terhubung dengan environtment hosting.
## 7. Ketujuh
Jalankan Setup Node.Js App - setelah melakukan konfigurasi pada file .env dilanjutkan dengan menjalankan setup nodeJs nya. Pastikan sebelum mejalankan aplikasi halaman browser sudah di refresh dan lakukan Restart pada Setup Node.Js App nya. Jalankan Run NPM Install dan hasilnya akan seperti message hijau Node.js NPM install completed successfully.
## 8. Kedelapan
Muncul Error 503 ketika mengakses URL API [***https://api-todoapp.codesync.id/](https://api-todoapp.codesync.id/)*** setelah semua setup project sudah berhasil di install pada hosting dan pesan error logs pada file stderr.log
Dalam case project contoh ini terdapat error 503 dari hasil setup project aplikasinya.
Error terjadi karena Node.js mencoba menggunakan `require()` untuk mengimpor modul ES (ECMAScript Module) yang tidak didukung dalam konteks CommonJS. Modul ES diidentifikasi dengan menggunakan ekstensi `.mjs` atau memiliki kunci `"type": "module"` di file `package.json`.
sehingga ada penyesuaian pada file startup pada ***Setup Node.Js App*** nya untuk file index.js diganti menjadi index.mjs yang mana dari awal untuk project aplikasinya script / codenya dibuat dengan dengan Modul ES (`import`).
## 9. Kesembilan
Berikut ini adalah tampilan ketika URL API backend bekerja. https://api-todoapp.codesync.id/tasks yang mana data sudah tampil dalam bentuk json file dan siap digunakan sebagai API data consume oleh aplikasi frontend.
Dengan ini tutorial Setup NodeJs untuk aplikasi backend telah selesai dan bisa berjalan dengan normal pada hosting. Untuk tutorial selanjutnya adalah Deploy aplikasi frontend https://todoapp.codesync.id yang mana nantinya aplikasi frontend ini akan melakukan fetch data ke aplikasi backend.
| sumberweb |
1,925,651 | HTML Semântico: O que, por quê e como | Nota: apenas traduzi o texto abaixo e postei aqui. As referências estão no fim deste artigo. ... | 0 | 2024-07-16T15:36:03 | https://dev.to/dougsource/html-semantico-o-que-por-que-e-como-k4k | webdev, html, a11y, braziliandevs | _**Nota:** apenas traduzi o texto abaixo e postei aqui. As referências estão no fim deste artigo._
## O que
1. Use elementos HTML elements para a finalidade pretendida deles.
2. Separe o conteúdo da apresentação
## Por quê
É mais fácil de ler e naturalmente leva a um código mais consistente. O código HTML consistente é mais fácil de estilizar.
Isso ajudará o seu SEO.
O HTML literalmente fará o seu trabalho para você, inclusive tornando sua página muito mais acessível. Basicamente, uma web page é um document que você deseja que qualquer pessoa possa ler. Use HTML para criar esse document. Javascript e CSS são complementos.
## Como
Pergunte a si mesmo se existe uma tag com mais significado que você pode usar ao acessar uma `<div>` ou `<span>`.
Pesquise no Google se o HTML faz isso antes de construí-lo.
## Estrutura raiz de uma página
`<!DOCTYPE html>` e `<html lang="en">` informam às máquinas que este é um HTML document escrito em inglês. O `<head>` element contém seus metadados. `<meta lang="en" charset="utf-8">` é importante. Diz ao navegador como decode e encode seus caracteres para máquinas e humanos. Finalmente, a `<body>` tag envolve o conteúdo da sua página.
```html
<!DOCTYPE html>
<html lang=“en”>
<head>
<meta charset="utf-8">
<meta></meta>
<title></title>
</head>
<body>
{ Seu conteúdo aqui }
</body>
</html>
```
## SEO
Antes de passarmos para o conteúdo de `<body>`, vamos falar sobre os elements que vão em `<head>`. Primeiro, não esqueça do seu `<title>`! Mantenha-o descritivo e com menos de 60 caracteres. Inclua a marca, se você tiver uma.
Use `<link rel="icon" type="image/x-icon" href="/images/favicon.ico">` para definir seu favicon - o pequeno logotipo na aba do navegador.
Tipos de <meta> tags:
- description: mantenha isso com menos de 160 caracteres, descritivo, com keywords curtas ou permita que as search engines escrevam isso para você.
- keywords: se quiser sugerir keywords que você acha que uma search engine não utilizará elas, faça isso.
- [open graph](https://ahrefs.com/blog/open-graph-meta-tags/): controle como seu conteúdo é exibido em sites de mídia social como Facebook e LinkedIn.
- [Twitter Cards](https://developer.twitter.com/en/docs/twitter-for-websites/cards/guides/getting-started): controle a aparência do seu site nos Twitter Cards.
- [robots](https://www.woorank.com/en/edu/seo-guides/meta-robots-tag-seo): diga aos search engine crawlers o que fazer com as informações do seu site.
Sempre adicione sua `viewport meta tag` - ela informa às search engines que você tem um site responsivo e evita que os dispositivos redimensionem sua viewport.
```html
<meta name="viewport" content="width=device-width, initial-scale=1">
```
Por fim, use uma `<script>` tag para adicionar [schema markup](https://www.link-assistant.com/news/structured-data-for-seo.html) para controlar como seu site é exibido nas search engines.
## Colocando o conteúdo em seções
Começando:
1. Coloque no topo de sua página coisas como logo, main navigation e uma heading em `<header>`.
2. Qualquer navigation menu fica em `<nav>`.
3. Todo aquele conteúdo bom e exclusivo da página vai para `<main>`. O ponto principal da sua página, se preferir.
4. Na parte inferior da página, coisas como copyright, autoria, contato e talvez um pouco mais de navegação (algo como um link que volte ao topo da página) vão em `<footer>`.
5. Use `<p>` para o seu texto.
6. Use `<ul>` ou `<ol>` contendo `<li>`s para suas listas.
**Lembre-se**: separe o conteúdo e a apresentação. `<nav>` é para navegação no site, não para listas de links. `<header>` e `<footer>` são para "branding" e para o conteúdo de navegação que você teria na parte superior e inferior de cada página do seu site.
### `<article>` vs `<section>` vs `<aside>`
Use `<article>` e `<section>` para agrupar conteúdo em `<main>`.
O conteúdo em `<article>` ainda deve fazer sentido se tiver sido colocado sozinho em uma página completamente diferente.
`<section>` agrupa conteúdo sobre o mesmo tema. Pode até entrar em `<article>`.
O que não é o conteúdo principal vai para `<aside>`. É complementar, mas não vital. Aninhe este element dentro do element que contém o conteúdo ao qual está relacionado. Pode estar dentro de `<main>` desde que esteja dentro de outro "sectioning element" como `<article>`. O conteúdo encapsulado em `<aside>` pode estar em um sidebar, mas "sidebar" é um conceito de apresentação.
### Headings
Estamos falando de `<h1>` até `<h6>`. Eles devem estar na sua página em ordem crescente, começando com `<h1>`, sem pular níveis. Raramente há motivo para ficar abaixo de `<h3>`.
Usar headings consistentes e "query-like" apenas ajuda ao seu SEO.
Você deve ter UM e APENAS UM `<h1>` por página.
- **MITO**: `<section>` reinicia a heading order.
- **VERDADE**: Os navegadores não implementaram essa feature listada nas especificações do HTML5.
### Tables
Já se foram os dias em que se usava tables para criar layout de conteúdo - isso é apresentação. Use o `<table>` element para estruturar dados tabulares.
Uma table básica de 2 colunas e 2 linhas:
```html
<table>
<caption>My basic table</caption>
<tr>
<th>Column 1</th>
<th>Column 2</th>
</tr>
<tr>
<td>Data 1</td>
<td>Data 2</td>
</tr>
</table>
```
Aprimore suas tables com `<col>`, `<colgroup>`, `<tbody>`, `<thead>`, `<tfoot>` e `<scope>`.
### Forms
Encapsule seu formulário em `<form>`. Use `<fieldset>` para agrupar form options juntas e `<legend>` para "label" elas. Você pode usar `<li>`, `<ul>`, `<ol>`, `<p>`, `<section>` e headings dentro do `<form>` element.
Mais sobre form controls mais adiante.
## Verifique sua Outline
Sectioning elements e heading elements trabalham juntos para criar uma document outline para sua página. Quando você achar que configurou sua página, tente navegar nela com um screen reader. Verifique com um [HTML validator](https://validator.w3.org/).
Se você achar que há gaps em sua document outline, você pode adicionar [ARIA landmark roles](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/landmark_role) usando o atributo role="" em seus container elements.
Isso é manualmente adicionado, o que o HTML semântico faz por você. Um screen reader leria "navigation" para um usuário tanto para `<div role="navigation">` quanto para `<nav>`.
Landmark roles como `<main>`, `<header>` e `<footer>` devem aparecer apenas uma vez em uma página.
## Enriqueça seu conteúdo com HTML
`<em>` produzirá texto em itálico. Ele também instrui um screen reader a informar ao usuário que o texto foi enfatizado.
`<strong>` produzirá texto em negrito. Ele também informa a um screen reader para informar ao usuário que o texto tem importância adicional.
Use CSS em vez de `<b>` e `<i>`.
Se o conteúdo da imagem for necessário para a compreensão do conteúdo ao seu redor, use `<figure>` e `<figcaption>`.
Caso contrário, use `<img>` e não se esqueça do texto no atributo `alt`!
`<blockquote>` cria uma "block quote" (como `display: block;`).
`<q>` cria uma "inline quote".
`<blockquote>` e `<q>` dirão ao screen reader para informar ao usuário que é uma "quote".
Use `<cite>` para citar suas fontes (sources).
Se você quisesse usar uma "quote", diga quem a disse e cite sua fonte, ficaria assim:
```html
<figure>
<blockquote>Separate content and presentation!</blockquote>
<figcaption>
<p>Abbey in
<cite>
<a href="https://thispresentation.com">
this presentation.
</a>
</cite>
</p>
</figcaption>
</figure>
```
## Dê mais informações às máquinas
- `<date>` e `<time>` - seja gentil com o computador e diga que esta é uma date ou time
- `<abbr>` - defina sempre suas abreviações!
- `<dd>`, `<dl>`, `<dt>` - defina outras coisas
- `<pre>` - texto pré-formatado
- `<code>` - é código!
- `<var>` - é uma variável!
- `<data>` - dados legíveis por máquina
- `<address>` – informações de contato do parent element.
Dentro de `<footer>`, `<address>` é identificado como as informações de contato do proprietário da web page!
## Permita que o HTML faça o trabalho por você
### Form Controls
`<textarea>` permite ao usuário enviar texto de formato livre. Ele tem muitos atributos que você pode usar, incluindo a ativação da spellcheck (verificação ortográfica)!
`<select>` cria um drop down para você e usar o atributo `multiple` permite que os usuários selecionem múltiplas opções.
`<option>` cria uma option para `<select>`. Quando várias `<option>`s são encapsuladas em `<datalist>`, eles criam sugestões para autocomplete.
`<progress>` e `<meter>` criam barras de progresso e medição para você!
Usar os atributos `action` e `method` do `<form>` ativa HTTP messaging integrado. `<button>` ou `<button type="submit">` dentro de `<form>` criará automaticamente um _submit/send button_ para seu HTTP messaging. `<button type="reset">` dentro de `<form>` cria automaticamente um button que irá reset todos os controls do `<form>`.
#### <input type="">
Sim, HTTP messaging integrado é legal, mas se você tem usuários submitting dados, provavelmente está usando `<input>`. `<input type="image">` cria uma imagem que funciona como um button. Por que criar seus próprios pickers ou file uploader quando você tem `<input type="color">`, `<input type="datetime-local">` e `<input type="file">`? Types como `email` e `password` possuem validation options integradas. Abaixo é demonstrado todos os diferentes tipos de `<input>`:
```html
<input type="checkbox">
<input type="file">
<input type="hidden">
<input type="password">
<input type="radio">
<input type="button" value="Click Me">
<input type="reset">
<input type="submit">
<input type="text">
<input type="url">
<input type="number">
<input type="range">
<input type="datetime-local">
<input type="time">
<input type="month">
<input type="week">
<input type="color">
<input type="search">
<input type="email">
<input type="tel">
<input
type="image"
src="https://www.petmd.com/sites/default/files/styles/article_image/public/2022-02/hamster.care_.jpg?itok=vL3xRPq6"
>
```
Veja isso no [codepen](https://codepen.io/abbeyperini/details/mdpJxXV).
#### <label>
Associar uma `<label>` a um `<input>` não é apenas acessível, mas também oferece vantagens programáticas em seu código e em mensagens HTTP. Por exemplo, clicar em um `<label>` é o mesmo que clicar em seu `<input>` associado.
Não associe uma `<label>` a um `<button>` ou `<input>` com `type=button`, `reset` ou `submit`. Nunca coloque um heading no sua `<label>`.
#### <button> vs <a>
Literalmente nunca crie seu próprio button. Basta usar `<button>`.
Um screen reader trata buttons e links de maneira muito diferente. Eles têm diferentes propriedades, comportamentos e estados integrados. Buttons feitos com `<a>` (o que novamente você nunca deve fazer) serão agrupados com outros links.
Os buttons servem para executar uma ação (a menos que essa ação seja navegar para outra página). Buttons e inputs podem ser acionados com "Space" e "Enter" para usuários de teclado. O `<button>` element fornece automaticamente estados de hover e focus.
Anchor tags (`<a>`) são para links e [fornecem SEO útil](https://www.semrush.com/blog/what-is-anchor-text-and-how-can-i-optimize-it/). Anchor tags são acionadas apenas ao "Enter".
#### Menção especial: <button> vs <input type="button">
Um `<button>` pode ter conteúdo e é mais fácil de estilizar. Um `<button>` dentro de um `<form>` sem um type especificado se tornará automaticamente um `<button type="submit">`. `<input type="button">` não tem comportamento default, tornando-o menos semântico e acessível. Isso faz com que ele se comporte de maneira mais consistente entre os navegadores. Isto foi particularmente importante ao tentar oferecer suporte ao IE6/IE7. `<input type="submit">` e `<input type="reset">` têm o comportamento default de submitting um form ou reset todos os form controls quando dentro de um `<form>`, mas nada mais.
### Outros elements que fazem muito trabalho
`<details>` e `<summary>` trabalham juntos para criar um toggle. `<audio>` e `<video>` possuem players integrados com controls.
```html
<details>
<summary>
Click for more details
</summary>
<p>
I would put a lot more details here if I had them
</p>
</details>
<audio
src="//samplelib.com/lib/preview/mp3/sample-3s.mp3"
controls
></audio>
<video
src="//samplelib.com/lib/preview/mp4/sample-5s.mp4"
controls
></video>
```
Veja isso no [codepen](https://codepen.io/abbeyperini/pen/bGadvZo).
`<picture>` encapsula vários elements `<img>` ou `<source>` e escolhe o melhor com base nos cenários de display/device. `<iframe>` pode ser usado para interceptar código remoto ou user input em um contexto separado da sua página por motivos de segurança.
## Conclusão
Aprender e usar HTML semântico oferece muitas funcionalidades sem levantar um dedo. Ele também permite que você incorpore acessibilidade e SEO com muito pouco esforço. Sem mencionar que isso leva a um código mais limpo e um código mais limpo é mais fácil de estilizar. Existem cerca de 100 elements HTML semânticos - não construa o que o HTML lhe entrega em uma bandeja de prata.
## Fonte
[Artigo](https://dev.to/abbeyperini/semantic-html-what-why-and-how-3b34?fbclid=IwZXh0bgNhZW0CMTEAAR29gicxC-LskiVgFJEl-xj8h3oxHS605dQTa_E7E16rriBbRgkB5HglJ5M_aem_XvJ0VYAKXqx0FkFGbM8bQg) escrito por **Abbey Perini**.
| dougsource |
1,925,652 | HTML Semântico: O que, por quê e como | Nota: apenas traduzi o texto abaixo e postei aqui. As referências estão no fim deste artigo. ... | 0 | 2024-07-16T15:36:03 | https://dev.to/dougsource/html-semantico-o-que-por-que-e-como-2i33 | webdev, html, a11y, braziliandevs | _**Nota:** apenas traduzi o texto abaixo e postei aqui. As referências estão no fim deste artigo._
## O que
1. Use elementos HTML elements para a finalidade pretendida deles.
2. Separe o conteúdo da apresentação
## Por quê
É mais fácil de ler e naturalmente leva a um código mais consistente. O código HTML consistente é mais fácil de estilizar.
Isso ajudará o seu SEO.
O HTML literalmente fará o seu trabalho para você, inclusive tornando sua página muito mais acessível. Basicamente, uma web page é um document que você deseja que qualquer pessoa possa ler. Use HTML para criar esse document. Javascript e CSS são complementos.
## Como
Pergunte a si mesmo se existe uma tag com mais significado que você pode usar ao acessar uma `<div>` ou `<span>`.
Pesquise no Google se o HTML faz isso antes de construí-lo.
## Estrutura raiz de uma página
`<!DOCTYPE html>` e `<html lang="en">` informam às máquinas que este é um HTML document escrito em inglês. O `<head>` element contém seus metadados. `<meta lang="en" charset="utf-8">` é importante. Diz ao navegador como decode e encode seus caracteres para máquinas e humanos. Finalmente, a `<body>` tag envolve o conteúdo da sua página.
```html
<!DOCTYPE html>
<html lang=“en”>
<head>
<meta charset="utf-8">
<meta></meta>
<title></title>
</head>
<body>
{ Seu conteúdo aqui }
</body>
</html>
```
## SEO
Antes de passarmos para o conteúdo de `<body>`, vamos falar sobre os elements que vão em `<head>`. Primeiro, não esqueça do seu `<title>`! Mantenha-o descritivo e com menos de 60 caracteres. Inclua a marca, se você tiver uma.
Use `<link rel="icon" type="image/x-icon" href="/images/favicon.ico">` para definir seu favicon - o pequeno logotipo na aba do navegador.
Tipos de <meta> tags:
- description: mantenha isso com menos de 160 caracteres, descritivo, com keywords curtas ou permita que as search engines escrevam isso para você.
- keywords: se quiser sugerir keywords que você acha que uma search engine não utilizará elas, faça isso.
- [open graph](https://ahrefs.com/blog/open-graph-meta-tags/): controle como seu conteúdo é exibido em sites de mídia social como Facebook e LinkedIn.
- [Twitter Cards](https://developer.twitter.com/en/docs/twitter-for-websites/cards/guides/getting-started): controle a aparência do seu site nos Twitter Cards.
- [robots](https://www.woorank.com/en/edu/seo-guides/meta-robots-tag-seo): diga aos search engine crawlers o que fazer com as informações do seu site.
Sempre adicione sua `viewport meta tag` - ela informa às search engines que você tem um site responsivo e evita que os dispositivos redimensionem sua viewport.
```html
<meta name="viewport" content="width=device-width, initial-scale=1">
```
Por fim, use uma `<script>` tag para adicionar [schema markup](https://www.link-assistant.com/news/structured-data-for-seo.html) para controlar como seu site é exibido nas search engines.
## Colocando o conteúdo em seções
Começando:
1. Coloque no topo de sua página coisas como logo, main navigation e uma heading em `<header>`.
2. Qualquer navigation menu fica em `<nav>`.
3. Todo aquele conteúdo bom e exclusivo da página vai para `<main>`. O ponto principal da sua página, se preferir.
4. Na parte inferior da página, coisas como copyright, autoria, contato e talvez um pouco mais de navegação (algo como um link que volte ao topo da página) vão em `<footer>`.
5. Use `<p>` para o seu texto.
6. Use `<ul>` ou `<ol>` contendo `<li>`s para suas listas.
**Lembre-se**: separe o conteúdo e a apresentação. `<nav>` é para navegação no site, não para listas de links. `<header>` e `<footer>` são para "branding" e para o conteúdo de navegação que você teria na parte superior e inferior de cada página do seu site.
### `<article>` vs `<section>` vs `<aside>`
Use `<article>` e `<section>` para agrupar conteúdo em `<main>`.
O conteúdo em `<article>` ainda deve fazer sentido se tiver sido colocado sozinho em uma página completamente diferente.
`<section>` agrupa conteúdo sobre o mesmo tema. Pode até entrar em `<article>`.
O que não é o conteúdo principal vai para `<aside>`. É complementar, mas não vital. Aninhe este element dentro do element que contém o conteúdo ao qual está relacionado. Pode estar dentro de `<main>` desde que esteja dentro de outro "sectioning element" como `<article>`. O conteúdo encapsulado em `<aside>` pode estar em um sidebar, mas "sidebar" é um conceito de apresentação.
### Headings
Estamos falando de `<h1>` até `<h6>`. Eles devem estar na sua página em ordem crescente, começando com `<h1>`, sem pular níveis. Raramente há motivo para ficar abaixo de `<h3>`.
Usar headings consistentes e "query-like" apenas ajuda ao seu SEO.
Você deve ter UM e APENAS UM `<h1>` por página.
- **MITO**: `<section>` reinicia a heading order.
- **VERDADE**: Os navegadores não implementaram essa feature listada nas especificações do HTML5.
### Tables
Já se foram os dias em que se usava tables para criar layout de conteúdo - isso é apresentação. Use o `<table>` element para estruturar dados tabulares.
Uma table básica de 2 colunas e 2 linhas:
```html
<table>
<caption>My basic table</caption>
<tr>
<th>Column 1</th>
<th>Column 2</th>
</tr>
<tr>
<td>Data 1</td>
<td>Data 2</td>
</tr>
</table>
```
Aprimore suas tables com `<col>`, `<colgroup>`, `<tbody>`, `<thead>`, `<tfoot>` e `<scope>`.
### Forms
Encapsule seu formulário em `<form>`. Use `<fieldset>` para agrupar form options juntas e `<legend>` para "label" elas. Você pode usar `<li>`, `<ul>`, `<ol>`, `<p>`, `<section>` e headings dentro do `<form>` element.
Mais sobre form controls mais adiante.
## Verifique sua Outline
Sectioning elements e heading elements trabalham juntos para criar uma document outline para sua página. Quando você achar que configurou sua página, tente navegar nela com um screen reader. Verifique com um [HTML validator](https://validator.w3.org/).
Se você achar que há gaps em sua document outline, você pode adicionar [ARIA landmark roles](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/landmark_role) usando o atributo role="" em seus container elements.
Isso é manualmente adicionado, o que o HTML semântico faz por você. Um screen reader leria "navigation" para um usuário tanto para `<div role="navigation">` quanto para `<nav>`.
Landmark roles como `<main>`, `<header>` e `<footer>` devem aparecer apenas uma vez em uma página.
## Enriqueça seu conteúdo com HTML
`<em>` produzirá texto em itálico. Ele também instrui um screen reader a informar ao usuário que o texto foi enfatizado.
`<strong>` produzirá texto em negrito. Ele também informa a um screen reader para informar ao usuário que o texto tem importância adicional.
Use CSS em vez de `<b>` e `<i>`.
Se o conteúdo da imagem for necessário para a compreensão do conteúdo ao seu redor, use `<figure>` e `<figcaption>`.
Caso contrário, use `<img>` e não se esqueça do texto no atributo `alt`!
`<blockquote>` cria uma "block quote" (como `display: block;`).
`<q>` cria uma "inline quote".
`<blockquote>` e `<q>` dirão ao screen reader para informar ao usuário que é uma "quote".
Use `<cite>` para citar suas fontes (sources).
Se você quisesse usar uma "quote", diga quem a disse e cite sua fonte, ficaria assim:
```html
<figure>
<blockquote>Separate content and presentation!</blockquote>
<figcaption>
<p>Abbey in
<cite>
<a href="https://thispresentation.com">
this presentation.
</a>
</cite>
</p>
</figcaption>
</figure>
```
## Dê mais informações às máquinas
- `<date>` e `<time>` - seja gentil com o computador e diga que esta é uma date ou time
- `<abbr>` - defina sempre suas abreviações!
- `<dd>`, `<dl>`, `<dt>` - defina outras coisas
- `<pre>` - texto pré-formatado
- `<code>` - é código!
- `<var>` - é uma variável!
- `<data>` - dados legíveis por máquina
- `<address>` – informações de contato do parent element.
Dentro de `<footer>`, `<address>` é identificado como as informações de contato do proprietário da web page!
## Permita que o HTML faça o trabalho por você
### Form Controls
`<textarea>` permite ao usuário enviar texto de formato livre. Ele tem muitos atributos que você pode usar, incluindo a ativação da spellcheck (verificação ortográfica)!
`<select>` cria um drop down para você e usar o atributo `multiple` permite que os usuários selecionem múltiplas opções.
`<option>` cria uma option para `<select>`. Quando várias `<option>`s são encapsuladas em `<datalist>`, eles criam sugestões para autocomplete.
`<progress>` e `<meter>` criam barras de progresso e medição para você!
Usar os atributos `action` e `method` do `<form>` ativa HTTP messaging integrado. `<button>` ou `<button type="submit">` dentro de `<form>` criará automaticamente um _submit/send button_ para seu HTTP messaging. `<button type="reset">` dentro de `<form>` cria automaticamente um button que irá reset todos os controls do `<form>`.
#### <input type="">
Sim, HTTP messaging integrado é legal, mas se você tem usuários submitting dados, provavelmente está usando `<input>`. `<input type="image">` cria uma imagem que funciona como um button. Por que criar seus próprios pickers ou file uploader quando você tem `<input type="color">`, `<input type="datetime-local">` e `<input type="file">`? Types como `email` e `password` possuem validation options integradas. Abaixo é demonstrado todos os diferentes tipos de `<input>`:
```html
<input type="checkbox">
<input type="file">
<input type="hidden">
<input type="password">
<input type="radio">
<input type="button" value="Click Me">
<input type="reset">
<input type="submit">
<input type="text">
<input type="url">
<input type="number">
<input type="range">
<input type="datetime-local">
<input type="time">
<input type="month">
<input type="week">
<input type="color">
<input type="search">
<input type="email">
<input type="tel">
<input
type="image"
src="https://www.petmd.com/sites/default/files/styles/article_image/public/2022-02/hamster.care_.jpg?itok=vL3xRPq6"
>
```
Veja isso no [codepen](https://codepen.io/abbeyperini/details/mdpJxXV).
#### <label>
Associar uma `<label>` a um `<input>` não é apenas acessível, mas também oferece vantagens programáticas em seu código e em mensagens HTTP. Por exemplo, clicar em um `<label>` é o mesmo que clicar em seu `<input>` associado.
Não associe uma `<label>` a um `<button>` ou `<input>` com `type=button`, `reset` ou `submit`. Nunca coloque um heading no sua `<label>`.
#### <button> vs <a>
Literalmente nunca crie seu próprio button. Basta usar `<button>`.
Um screen reader trata buttons e links de maneira muito diferente. Eles têm diferentes propriedades, comportamentos e estados integrados. Buttons feitos com `<a>` (o que novamente você nunca deve fazer) serão agrupados com outros links.
Os buttons servem para executar uma ação (a menos que essa ação seja navegar para outra página). Buttons e inputs podem ser acionados com "Space" e "Enter" para usuários de teclado. O `<button>` element fornece automaticamente estados de hover e focus.
Anchor tags (`<a>`) são para links e [fornecem SEO útil](https://www.semrush.com/blog/what-is-anchor-text-and-how-can-i-optimize-it/). Anchor tags são acionadas apenas ao "Enter".
#### Menção especial: <button> vs <input type="button">
Um `<button>` pode ter conteúdo e é mais fácil de estilizar. Um `<button>` dentro de um `<form>` sem um type especificado se tornará automaticamente um `<button type="submit">`. `<input type="button">` não tem comportamento default, tornando-o menos semântico e acessível. Isso faz com que ele se comporte de maneira mais consistente entre os navegadores. Isto foi particularmente importante ao tentar oferecer suporte ao IE6/IE7. `<input type="submit">` e `<input type="reset">` têm o comportamento default de submitting um form ou reset todos os form controls quando dentro de um `<form>`, mas nada mais.
### Outros elements que fazem muito trabalho
`<details>` e `<summary>` trabalham juntos para criar um toggle. `<audio>` e `<video>` possuem players integrados com controls.
```html
<details>
<summary>
Click for more details
</summary>
<p>
I would put a lot more details here if I had them
</p>
</details>
<audio
src="//samplelib.com/lib/preview/mp3/sample-3s.mp3"
controls
></audio>
<video
src="//samplelib.com/lib/preview/mp4/sample-5s.mp4"
controls
></video>
```
Veja isso no [codepen](https://codepen.io/abbeyperini/pen/bGadvZo).
`<picture>` encapsula vários elements `<img>` ou `<source>` e escolhe o melhor com base nos cenários de display/device. `<iframe>` pode ser usado para interceptar código remoto ou user input em um contexto separado da sua página por motivos de segurança.
## Conclusão
Aprender e usar HTML semântico oferece muitas funcionalidades sem levantar um dedo. Ele também permite que você incorpore acessibilidade e SEO com muito pouco esforço. Sem mencionar que isso leva a um código mais limpo e um código mais limpo é mais fácil de estilizar. Existem cerca de 100 elements HTML semânticos - não construa o que o HTML lhe entrega em uma bandeja de prata.
## Fonte
[Artigo](https://dev.to/abbeyperini/semantic-html-what-why-and-how-3b34?fbclid=IwZXh0bgNhZW0CMTEAAR29gicxC-LskiVgFJEl-xj8h3oxHS605dQTa_E7E16rriBbRgkB5HglJ5M_aem_XvJ0VYAKXqx0FkFGbM8bQg) escrito por **Abbey Perini**.
| dougsource |
1,925,653 | A beginner's guide to the Sdxl-Emoji model by Fofr on Replicate | sdxl-emoji | 0 | 2024-07-16T15:37:26 | https://aimodels.fyi/models/replicate/sdxl-emoji-fofr | coding, ai, beginners, programming | *This is a simplified guide to an AI model called [Sdxl-Emoji](https://aimodels.fyi/models/replicate/sdxl-emoji-fofr) maintained by [Fofr](https://aimodels.fyi/creators/replicate/fofr). If you like these kinds of guides, you should subscribe to the [AImodels.fyi newsletter](https://aimodels.substack.com) or follow me on [Twitter](https://twitter.com/mikeyoung44).*
## Model overview
`sdxl-emoji` is an SDXL (Stable Diffusion XL) fine-tuned model created by [fofr](https://aimodels.fyi/creators/replicate/fofr) that specializes in generating images based on Apple Emojis. This model builds upon the capabilities of the original Stable Diffusion model, adding specialized knowledge and training to produce high-quality, emoji-themed images. It can be seen as a variant of similar SDXL models like [`sdxl-color`](https://aimodels.fyi/models/replicate/sdxl-color-fofr), [`realistic-emoji`](https://aimodels.fyi/models/replicate/realistic-emoji-martintmv-git), [`sdxl-2004`](https://aimodels.fyi/models/replicate/sdxl-2004-fofr), [`sdxl-deep-down`](https://aimodels.fyi/models/replicate/sdxl-deep-down-fofr), and [`sdxl-black-light`](https://aimodels.fyi/models/replicate/sdxl-black-light-fofr), each with their own unique focus and capabilities.
## Model inputs and outputs
The `sdxl-emoji` model accepts a variety of inputs, including text prompts, images, and various parameters to control the generation process. Users can provide a prompt describing the type of emoji they want to generate, along with optional modifiers like the size, color, or style. The model can also take in an existing image and perform inpainting or image-to-image generation tasks.
### Inputs
- **Prompt**: A text description of the emoji you want to generate
- **Image**: An existing image to use as a starting point for inpainting or image-to-image generation
- **Seed**: A random seed value to control the randomness of the generation process
- **Width/Height**: The desired dimensions of the output image
- **Num Outputs**: The number of images to generate
- **Guidance Scale**: The scale for classifier-free guidance, which affects the balance between the prompt and the model's own generation
- **Num Inference Steps**: The number of denoising steps to perform during the generation process
### Outputs
- **Image(s)**: One or more generated images matching the input prompt and parameters
## Capabilities
The `sdxl-emoji` model excels at generating a wide variety of emoji-themed images, from simple cartoon-style emojis to more realistic, photorealistic renderings. It can capture the essence of different emoji expressions, objects, and scenes, and combine them in unique and creative ways. The model's fine-tuning on Apple's emoji dataset allows it to produce results that closely match the visual style and aesthetics of official emojis.
## What can I use it for?
The `sdxl-emoji` model can be a powerful tool for a variety of applications, such as:
- **Social media and messaging**: Generate custom emoji-style images to use in posts, messages, and other digital communications.
- **Creative projects**: Incorporate emoji-inspired visuals into design projects, illustrations, or digital art.
- **Education and learning**: Use the model to create engaging, emoji-themed educational materials or learning aids.
- **Branding and marketing**: Develop unique, emoji-based brand assets or promotional materials.
## Things to try
With the `sdxl-emoji` model, you can experiment with a wide range of prompts and parameters to explore the limits of its capabilities. Try generating emojis with different expressions, moods, or settings, or combine them with other visual elements to create more complex scenes and compositions. You can also explore the model's ability to perform inpainting or image-to-image generation tasks, using existing emoji-themed images as starting points for further refinement or transformation.
**If you enjoyed this guide, consider subscribing to the [AImodels.fyi newsletter](https://aimodels.substack.com) or following me on [Twitter](https://twitter.com/mikeyoung44) for more AI and machine learning content.** | mikeyoung44 |
1,925,654 | Can End-To-End Encryption be Hacked? – Details Explained | In the digital age, protecting communication through text, video, or voice messages has become... | 0 | 2024-07-16T15:39:32 | https://www.clouddefense.ai/can-end-to-end-encryption-be-hacked/ |
In the digital age, protecting communication through text, video, or voice messages has become crucial due to the increasing number of cyber incidents. End-to-end encryption (E2EE) has emerged as the most effective security protocol, ensuring that only the sender and recipient can read the communication. Despite its robust security, the question arises: Can end-to-end encryption be hacked?
###What is End-To-End Encryption (E2EE)?
E2EE is a highly secure communication method where data is encrypted on the sender's device and decrypted only on the recipient's device. This ensures that no third party, including service providers, governments, or hackers, can access the communicated data. E2EE uses asymmetric cryptography, involving a public key for encryption and a private key for decryption, to protect data integrity and privacy.
###Why Is End-To-End Encryption Important?
E2EE is crucial for various reasons. It prevents unauthorized access and data breaches by encoding personal messages, financial transactions, and confidential business data. Only the sender and recipient can access the data, ensuring privacy. E2EE helps build trust between users and communication platforms by showcasing a commitment to data protection. It helps businesses comply with data privacy regulations like HIPAA and GDPR and eliminates the chance of message tampering, alerting users if data is compromised.
###How Does End-To-End Encryption Work?
E2EE uses asymmetric encryption, generating public and private keys for encrypting and decrypting data at the device level. Encryption algorithms convert plain messages into ciphertext, ensuring that only the intended recipient can decipher the data. This method creates a secure communication channel, preventing unauthorized access.
###Advantages of End-To-End Encryption
E2EE ensures that only the sender and recipient can read the messages, providing complete security and privacy. It offers an additional layer of security, keeping data inaccessible even if intercepted. E2EE maintains data integrity by protecting against tampering and alerts users if messages are altered. It prevents unauthorized entities from accessing communicated data, allowing users to control the privacy of their messages. E2EE helps organizations comply with data protection regulations and enables secure communication of confidential data in various industries.
###Challenges of End-To-End Encryption
However, E2EE has some challenges. Metadata remains unencrypted and visible, posing a risk. Managing encryption keys can be complex, leading to vulnerabilities. E2EE can slow down processing, affecting user experience. Compromised endpoints can expose encrypted data. E2EE can be exploited for illegal activities due to the inability to monitor encrypted messages, making it challenging to track and regulate misinformation. It can also create an environment for cyberbullying and hate speech, affecting user safety.
###Can End-To-End Encryption Be Hacked?
While E2EE is a powerful security tool, it is not entirely impenetrable. Modern hackers, using advanced techniques and resources, have occasionally succeeded in breaching secured communication channels. Stealing encryption keys or accessing data before encryption are common tactics. E2EE is also ineffective against malware or phishing attacks. Therefore, organizations must continuously enhance security measures to protect against breaches.
###Conclusion
End-to-end encryption is essential for securing digital communication, providing the necessary privacy and security for users. While theoretically hackable, E2EE remains a crucial tool for protecting sensitive information. Organizations must continue to strengthen their encryption methods to stay ahead of potential threats and ensure secure communication.
| clouddefenseai | |
1,925,655 | Next in the Journey: Neuro-Symbolic AI | Neuro-Symbolic AI combines neural learning and symbolic reasoning, enhancing AI's decision-making, learning, and interpretability for complex tasks. | 0 | 2024-07-16T16:08:07 | https://blog.nucleoid.com/next-in-the-journey-neuro-symbolic-ai | ai, computerscience | ---
description: Neuro-Symbolic AI combines neural learning and symbolic reasoning, enhancing AI's decision-making, learning, and interpretability for complex tasks.
---
> "The integration of deep learning with symbolic reasoning could lead to the next wave of AI advancements, potentially solving tasks that require complex, structured thinking." — Demis Hassabis, Co-founder of DeepMind
All the achievements and progress are fascinating—to see how a "metal box" coming to life... Interestingly, it is not far off from how nature creates living things from basic carbon-based materials. Obviously, it wouldn't be fair to compare nature's 4-billion-year evolution to our software running on silicon semiconductor chips. Yet, this simple comparison raises an important question: Should we imitate nature its properties like plasticity, ability to reason, ability to plan, syllogize etc. or should we mimic outcomes of its products?
Many pioneers in AI share a common vision of replicating human intelligence through machines capable of learning, reasoning, and problem-solving. Their interdisciplinary approach integrates insights from computer science, cognitive psychology, and neuroscience, aiming to create systems that improve over time by learning from data and experience. Early pioneers like John McCarthy and Herbert Simon focused on symbolic AI, while later figures such as Geoffrey Hinton and Yann LeCun advanced neural networks and deep learning. Despite varied methods, they collectively emphasize the ethical implications of AI, advocating for systems aligned with human values and designed for societal benefit. Their work underscores the progressive improvement of AI, aspiring to tackle increasingly complex tasks and solve real-world problems, all underpinned by fundamental research that advances theoretical and practical understanding of intelligent systems.
### Brief History of AI
Historically, first Symbolic AI, originating from the Dartmouth Conference in 1956, initially focused on rule-based systems like the Logic Theorist and General Problem Solver in the 1950s-60s, but faced challenges in real-world complexity. The 1970s saw the rise of expert systems, such as MYCIN, which, despite their popularity, were brittle and expensive to maintain. By the 1990s, symbolic AI began integrating with machine learning and neural networks. In parallel, ANNs began with McCulloch and Pitts' 1943 neuron model and Rosenblatt's 1958 Perceptron. Despite setbacks in the 1960s, the 1980s revival, spurred by backpropagation, led to practical applications in the 1990s. The 2010s deep learning revolution, marked by the success of deep neural networks like the 2012 ImageNet-winning model, transformed AI, integrating with symbolic methods and focusing on explainability and ethics for future advancements.
- **1950**: Alan Turing proposes the Turing Test as a measure of machine intelligence.
- **1956**: The term "Artificial Intelligence" is coined at the Dartmouth Summer Research Project on Artificial Intelligence, led by John McCarthy.
- **1965**: Joseph Weizenbaum creates ELIZA, an early natural language processing computer program.
- **1970s:** AI Winter Begins, funding and interest in AI research decline due to the realization of the significant limitations of existing technology.
- **1986**: Neural networks gain popularity again with the backpropagation method that helps train multi-layer networks.
- **1997**: IBM’s Deep Blue beats world chess champion Garry Kasparov.
- **2006**: Geoffrey Hinton, et al., introduce concepts that lead to the resurgence of neural networks in the deep learning form.
- **2011**: IBM’s Watson wins on the quiz show "Jeopardy!" against human champions.
- **2014**: Google acquires DeepMind; later in 2016, AlphaGo beats Go world champion Lee Sedol.
### Symbolic AI
Symbolic AI, is an approach to artificial intelligence that uses symbolic representations of problems, logical reasoning, and rule-based systems to simulate human intelligence. In Symbolic AI, knowledge is explicitly encoded in symbols and manipulated using formal logic or rule-based algorithms to derive conclusions or make decisions. This method relies on high-level, human-readable representations of problems and solutions, such as mathematical logic, semantic networks, and production rules. Symbolic AI was prominent in early AI research and is effective in domains where clear rules and structured knowledge exist, such as theorem proving, expert systems, and natural language understanding. However, it struggles with ambiguity, learning from data, and adapting to new or unstructured problems, leading to the development of other AI approaches, such as neural networks and machine learning, to complement its capabilities.
### Artificial Neuro Network (Subsymbolic)
An Artificial Neural Network (ANN) is a computational model designed to mimic the way human brains process information, consisting of interconnected layers of artificial neurons. These neurons, organized into input, hidden, and output layers, process data by adjusting connection weights and biases through learning algorithms like backpropagation. By passing data through these layers and applying activation functions, ANNs can recognize patterns, learn from examples, and make decisions, making them highly effective for tasks such as image and speech recognition, natural language processing, financial forecasting, medical diagnosis, and autonomous systems.
## **What is Neuro-Symbolic AI?**
Neuro-Symbolic AI is an emerging field in AI, combines the strengths of symbolic AI and artificial neural networks to create robust and versatile AI systems. This approach integrates symbolic reasoning, which excels at explicit logic and rule-based processing, with neural networks that are adept at learning from unstructured data and recognizing patterns. Neural networks are excellent at pattern recognition and learning from data, but they struggle with explicit reasoning and understanding abstract concepts. Symbolic reasoning, on the other hand, is adept at manipulating symbols and applying logical rules but lacks the flexibility and learning capacity of neural networks. By blending these methods, Neuro-Symbolic AI can achieve greater explainability, better generalization from fewer examples, and enhanced flexibility in handling complex tasks. Applications include natural language understanding, robotics, and knowledge graphs, though integrating these paradigms presents challenges in complexity and computational resources.
Neuro-Symbolic AI consists of two components: Neural Networks as the Learning Component and Symbolic AI as the Reasoning Component.
### Neural Networks: The Learning Component
The learning component in Neuro-Symbolic AI integrates the pattern recognition and data-driven learning capabilities of artificial neural networks with the structured knowledge and logical reasoning of symbolic AI. Neural networks are employed to learn from vast amounts of unstructured data, identifying patterns and making predictions through training processes such as backpropagation. This learning is then complemented by symbolic reasoning, which provides high-level, human-readable rules and logic to interpret and manipulate the learned patterns. By combining these approaches, Neuro-Symbolic AI systems can learn from raw data while also understanding and applying abstract concepts and rules, resulting in more adaptable and interpretable AI solutions.
### Symbolic AI: The Reasoning Component
The reasoning component in Neuro-Symbolic AI leverages the structured, rule-based processing capabilities of symbolic AI to enhance the decision-making and interpretability of AI systems. Symbolic AI utilizes explicit, human-readable symbols and logical rules to represent knowledge and perform logical inferences, allowing the system to reason about abstract concepts, relationships, and sequences of actions. This component can process structured information, such as semantic networks or ontologies, to draw conclusions and make decisions based on formal logic. By integrating this with the pattern recognition and learning capabilities of neural networks, Neuro-Symbolic AI systems can apply logical reasoning to the patterns identified by neural networks, resulting in AI that is both powerful in handling raw data and capable of sophisticated, explainable reasoning.
## Neuro-Symbolic AI is a Spectrum
In the realm of Neuro-Symbolic AI, there is no 'one-stop shop' solution or architecture, indeed, Neuro-Symbolic AI can be viewed as a spectrum that encompasses both probabilistic and deterministic elements. This spectrum reflects the integration of different techniques from neural networks and symbolic AI, each of which has its strengths in handling uncertainty and structure, respectively.
Neuro-Symbolic AI represents a dynamic spectrum that skillfully merges the probabilistic capabilities of neural networks with the deterministic nature of symbolic AI, creating a robust framework suited for a diverse range of applications. At one end of the spectrum, the probabilistic components harness neural networks' ability to learn from and adapt to large, noisy, and often incomplete datasets, making these systems highly flexible and capable of handling uncertainty. On the opposite end, the deterministic elements utilize symbolic AI's strength in enforcing strict, rule-based reasoning, ensuring that outcomes are logical, explainable, and compliant with predefined regulations. By blending these approaches, neuro-symbolic AI systems can efficiently manage complex challenges where both adaptability to new information and stringent adherence to rules are paramount. This integration not only enhances the systems' operational efficiency but also significantly broadens their applicability, from autonomous vehicles navigating unpredictable roads to medical systems diagnosing diseases with both high accuracy and adherence to clinical guidelines. Thus, neuro-symbolic AI stands as a sophisticated hybrid approach, bringing together the best of both worlds to address some of the most intricate problems in artificial intelligence.
## Intelligence in Nature's Code
Nature programs living things with intelligence through a complex interplay of genetic, evolutionary, environmental, and developmental factors. Genetic instructions shape neural architecture, while natural selection favors traits that enhance survival and reproduction, leading to the evolution of cognitive abilities. Living organisms, particularly humans, possess intelligence characterized by the ability to understand, learn, and apply knowledge through experience, sense perception, and reasoning. This biological intelligence is adaptable, emotionally driven, and contextually nuanced, allowing for creativity, empathy, and ethical considerations. In contrast, artificial intelligence (AI) demonstrates a form of intelligence through computational power, data processing, and algorithmic learning, excelling in tasks requiring pattern recognition, data analysis, and decision-making within specified parameters. While AI can outperform humans in certain domains like speed and accuracy in data-heavy tasks, it lacks the intrinsic emotional understanding, consciousness, and ethical judgment inherent in human intelligence, making it a powerful yet fundamentally different form of intelligence.
The endeavor to develop artificial intelligence that parallels the human brain is a profound challenge, likely requiring many more years of innovation and interdisciplinary collaboration. The human brain is an extraordinarily complex organ, characterized not only by its cognitive capabilities but also by its capacity for emotions, consciousness, and ethical reasoning. Current AI systems excel in specific tasks through algorithms and vast data processing but lack the brain's integrated and versatile nature. Achieving a semblance of this requires advancements in understanding neural processes, developing more sophisticated machine learning models, and integrating these systems with insights from neuroscience, psychology, and philosophy.
## Types of Neuro-Symbolic AI
### I. Knowledge Graph
Neuro-symbolic AI combines the pattern recognition strengths of neural networks with the logical reasoning and interpretability of symbolic AI, utilizing knowledge graphs as a structured representation of information. Knowledge graphs, which consist of entities (nodes) and their relationships (edges), provide a rich semantic context that enhances neural networks' understanding and decision-making. By integrating these graphs, neuro-symbolic AI systems can perform complex reasoning tasks, leveraging neural networks for learning from data and using symbolic logic for explainable and precise inferences. This hybrid approach leads to more robust, accurate, and interpretable AI solutions, applicable in various fields such as natural language processing, recommendation systems, and healthcare.
### Components of Neuro-Symbolic AI
1. Neural Networks:
- **Learning from Data:** Neural networks, particularly deep learning models, excel at learning patterns from large datasets. They are adept at tasks such as image and speech recognition, natural language processing, and more.
- **Generalization:** These models can generalize from examples, allowing them to make predictions or recognize new, unseen instances.
2. Symbolic Reasoning:
- **Logical Inference:** Symbolic AI focuses on using predefined rules and logic to manipulate symbols and reason about problems. This allows for explicit knowledge representation and logical deductions.
- **Explainability:** The symbolic approach provides interpretability, making it easier to understand and explain the reasoning behind AI decisions.
### II. Logic Graph (Declarative Logic)
Neuro-symbolic AI combines the pattern recognition capabilities of neural networks with the logical reasoning strengths of symbolic AI, using like Prolog as a tool for the latter. Neural networks excel at learning from large datasets, identifying complex patterns, and making predictions. Prolog, a declarative logic programming language, is utilized to represent knowledge as facts and rules and to perform logical inferences. In this hybrid approach, knowledge extracted by neural networks is encoded in Prolog, enabling the system to leverage both data-driven insights and logical reasoning. This integration allows for sophisticated, explainable AI systems that can learn from data and reason about it in a human-interpretable manner, making it applicable in areas like medical diagnosis, natural language understanding, and decision support systems.
Neuro-symbolic AI combines the strengths of neural networks and symbolic reasoning to create more robust and explainable AI systems. Prolog, a logic programming language, is often used in symbolic reasoning due to its strong support for formal logic and knowledge representation. Here's how neuro-symbolic AI can be explained using Prolog:
### Components of Neuro-Symbolic AI with Prolog
1. **Neural Networks:**
- **Learning from Data:** Neural networks can learn complex patterns from large datasets, which makes them effective for tasks such as image recognition, natural language processing, and more.
- **Generalization:** These networks can generalize from training data to make predictions or classify new data instances.
2. Symbolic Reasoning with Prolog:
- **Logical Inference:** Prolog excels in logical inference, enabling the AI to make deductions based on a set of rules and facts.
- **Knowledge Representation:** Prolog represents knowledge in the form of facts and rules, making it easy to encode and manipulate structured information.
## AI Autumn (Hopefully not a Winter)
The term "AI winter" refers to a period of reduced funding and interest in artificial intelligence research. This phenomenon has historically occurred after initial enthusiasm and investment in AI led to expectations that were not met by the technology's actual capabilities. Concerns about entering another AI winter, or at least an AI autumn, are relevant when considering the current landscape dominated by large language models (LLMs).
The hype surrounding LLMs has led to inflated expectations about their capabilities. While they are often presented as approaching human-like understanding, the reality is that they still lack true comprehension and reasoning abilities. They operate based on patterns in data rather than any semantic understanding. If the public and investors realize that these systems do not deliver on the broader promises of AI, such as general intelligence or fully autonomous decision-making, disappointment could lead to reduced funding and interest.
Presently, much of the AI research and commercial focus is centered around large language models like GPT (Generative Pre-trained Transformer) and similar architectures. While these models have showcased remarkable capabilities in generating human-like text and performing a range of language-based tasks, they have limitations. Their reliance on vast amounts of data, substantial energy requirements, and occasional generation of nonsensical or biased outputs are significant drawbacks. If the field continues to prioritize LLMs without addressing these limitations, it might lead to stagnation and disillusionment among stakeholders.
# Next in Journey: Neuro-Symbolic AI
Larger models, sparse models, and Mixture-of-Experts (MoE) models have significantly advanced AI capabilities. A promising next step to further enhance these models is integrating them with *reasoning engines* and *knowledge bases*. This integration could enable AI to tackle complex logical tasks that require both broad knowledge and sophisticated reasoning abilities.
Combining these advanced models with reasoning engines would allow AI to move beyond simple pattern recognition and statistical inference, enabling it to perform tasks that require logical deduction and critical thinking. Knowledge bases can provide a structured repository of factual information, which the AI can draw upon to inform its reasoning processes. This synergy between large-scale learning models and structured reasoning tools would pave the way for more intelligent systems capable of understanding context, making informed decisions, and solving problems that are currently beyond the reach of traditional neural networks. For instance, in fields like medical diagnostics, legal analysis, and scientific research, such integrated AI systems could offer profound insights, ensuring that decisions are based on comprehensive data analysis and robust logical frameworks. This approach holds the potential to bridge the gap between current AI capabilities and true artificial general intelligence (AGI).
**Potential Benefits and Applications**
1. **Enhanced Reasoning Abilities:** Integrating neural networks with symbolic reasoning can enable AI systems to perform complex logical tasks, such as theorem proving, planning, and diagnostics, with greater accuracy and efficiency.
2. **Improved Interpretability:** Symbolic components can make AI decisions more transparent and explainable, addressing one of the key concerns about the "black box" nature of deep learning models.
3. **Knowledge Integration:** Neuro-symbolic AI can incorporate existing human knowledge, represented in symbolic form, into learning processes, allowing for more efficient learning and better generalization from limited data.
4. **Robustness and Safety:** By embedding explicit rules and constraints, neuro-symbolic systems can avoid some of the pitfalls of purely data-driven approaches, such as generating biased or nonsensical outputs.
In conclusion, Neuro-Symbolic AI holds the potential to transform the field of artificial intelligence by unifying the strengths of neural networks and symbolic reasoning. By harnessing the depth of neural learning and the precision of symbolic processes, this emerging field promises to bridge the gap between learning and cognitive reasoning. This confluence represents not just a technical evolution but a paradigm shift towards creating systems that not only learn from vast datasets but also reason with the clarity and precision required for complex decision-making.
This is a journey, many hints from nature, but surely it is all very beginning...
---
<center>
<b>⭐️ Star us on GitHub for the support</b>
</center>
<p align="center">
<img src="https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fbvwa94mlzqill5eg04s.png" alt="Nucleoid AI Banner" />
</p>
Thanks to declarative logic programming, we have a brand-new approach to Neuro-Symbolic AI. As we continue to explore the potential of this AI architecture, we welcome all kinds of contributions!
<center>
Join us at
<br/>
<a href="https://github.com/NucleoidAI/Nucleoid">https://github.com/NucleoidAI/Nucleoid</a>
</center>
---
{% embed https://github.com/NucleoidAI/Nucleoid %}
| canmingir |
1,925,656 | Apply These 5 Secret Techniques To Improve Your Parrot's Life | Brook B Taube Parrots are intelligent, social, and vibrant creatures that make for delightful... | 0 | 2024-07-16T15:43:32 | https://dev.to/khano_pawli_b0cc537d422c2/apply-these-5-secret-techniques-to-improve-your-parrots-life-5032 | webdev, javascript, programming, beginners | [Brook B Taube](https://brookbtaubes.com) Parrots are intelligent, social, and vibrant creatures that make for delightful companions. However, they also require a great deal of attention, mental stimulation, and proper care to thrive. Here are five secret techniques to significantly improve your parrot’s life, ensuring they remain happy, healthy, and engaged.
1. Enrich Their Environment
Environmental enrichment is crucial for the well-being of parrots. In the wild, parrots are constantly engaged in activities such as foraging, exploring, and socializing. Replicating this in a domestic setting can be challenging but not impossible. Start by providing a variety of toys that cater to different behaviors such as chewing, shredding, and puzzle-solving. Rotate these toys regularly to keep your parrot from getting bored. Natural perches made from safe, untreated wood can also enhance their living space, providing a more dynamic environment.
Additionally, consider creating a foraging system within their cage. Hide their favorite treats or food in small, bird-safe containers or toys designed for this purpose. This not only provides mental stimulation but also encourages physical activity, mimicking their natural foraging behavior.
2. Implement Positive Reinforcement Training
Training your parrot using positive reinforcement techniques can greatly improve their quality of life. Positive reinforcement involves rewarding your parrot with treats, praise, or affection when they exhibit desired behaviors. This approach not only helps in teaching tricks and commands but also strengthens the bond between you and your parrot.
Start with simple commands like “step up” or “step down” and gradually progress to more complex tricks. Consistency and patience are key. Training sessions should be short and engaging to prevent your parrot from becoming overwhelmed or bored. Over time, your parrot will associate training with positive experiences, leading to a more harmonious relationship.
3. Promote Social Interaction
Parrots are highly social animals that thrive on interaction. Lack of socialization can lead to behavioral issues such as feather plucking, screaming, and aggression. To prevent this, it’s essential to spend quality time with your parrot daily. Engage in activities such as talking, playing, and even watching TV together.
If you have a single parrot, consider introducing them to other birds gradually and under supervision. Social interaction with other birds can provide mental stimulation and reduce loneliness. However, be cautious and ensure that any new introductions are done safely to prevent stress or aggression.
4. Maintain a Balanced Diet
A balanced diet is fundamental to your parrot’s health. Many common health issues in parrots stem from poor nutrition. Seeds alone do not provide the necessary nutrients, so it’s important to include a variety of fresh fruits, vegetables, and high-quality pellets in their diet. Leafy greens, carrots, apples, and berries are excellent choices. Avoid feeding your parrot avocados, chocolate, caffeine, and alcohol, as these can be toxic.
Consult with an avian veterinarian to tailor a diet specific to your parrot’s species and individual needs. Regular check-ups can also help identify any nutritional deficiencies early on, allowing you to make necessary adjustments to their diet.
5. Ensure Regular Health Check-ups
Regular veterinary check-ups are vital to ensure your parrot remains in good health. Birds are masters at hiding illness, so routine visits to an avian vet can help detect and treat potential health issues before they become serious. Annual check-ups should include a thorough physical examination, blood tests, and any necessary vaccinations.
In addition to professional care, it’s important to monitor your parrot’s health at home. Look for signs of illness such as changes in appetite, droppings, feather condition, and behavior. Promptly addressing any concerns with your vet can prevent minor issues from escalating.
Conclusion
Improving your parrot’s life involves a combination of environmental enrichment, positive reinforcement training, social interaction, a balanced diet, and regular health check-ups. By implementing these five secret techniques, you can ensure your parrot remains happy, healthy, and mentally stimulated. Parrots are incredible companions, and with proper care and attention, they can thrive and bring joy to your life for many years.
https://khanopawli.tumblr.com/
https://khanopawli.blogspot.com/2024/07/the-irresistible-charm-of-cute-cats.html
| khano_pawli_b0cc537d422c2 |
1,925,657 | Build a Sleek, Fast, and SEO-Optimized Developer Portfolio with Astro and Tailwind CSS | Creating your personal website has never been easier or more fun. With the Stellar Astro Dev... | 0 | 2024-07-16T15:44:20 | https://dev.to/vinitshahdeo/build-a-sleek-fast-and-seo-optimized-developer-portfolio-with-astro-and-tailwind-css-1g91 | astro, opensource, portfolio, tailwindcss | Creating your personal website has never been easier or more fun. With the [Stellar Astro Dev Portfolio](https://github.com/vinitshahdeo/portfolio) template, you can quickly build a professional and impressive online presence. It's **sleek**, **modern**, and **highly customizable** template to showcase your work, skills, and featured articles. **Preview the demo at [vinitshahdeo.com](https://vinitshahdeo.com/)**.
[](https://github.com/vinitshahdeo/portfolio)
## Built with Astro and Tailwind CSS
This template is **minimalistic** and optimized for **performance** and **SEO**. It contains four main pages:
- 🏠 **[Home](https://vinitshahdeo.com/)**: A welcome page with your brief introduction.
- 👤 **[About](https://vinitshahdeo.com/about/)**: Detailed information about you, your skills, and your experience.
- 📚 **[Featured](https://vinitshahdeo.com/featured/)**: Your thoughts, stories, and interviews.
- 📆 **[Now](https://vinitshahdeo.com/now/)**: What you're doing now This page is inspired by [Derek Sivers](https://nownownow.com/about)'s `/now` page. It's a great way to share what you're up to now.
## Key Features
- 📱 **Fully Responsive**: Optimized for all screen sizes, ensuring a seamless user experience across devices.
- ⚡ **Fast and SEO Optimized**: Built for speed and search engine visibility, with comprehensive Open Graph meta tags for better social media sharing.
- 🎨 **Fully Customizable**: Tailor the template to match your style and requirements effortlessly.
- 📄 **Comprehensive Pages**: Pre-built pages include Home, About, Now, and Featured.
- 🚀 **Self-Host Ready**: Easily deployable on platforms like **Netlify** or **Vercel**.
- 📊 **Google Analytics Integration**: Simple setup for insightful analytics.
- 🔍 **Automated SEO Tools**: Automatic generation of robots.txt and Sitemap for better search engine indexing and navigation.
## Perfect Lighthouse Score
This portfolio is designed to be performant and accessible, achieving a perfect score on Lighthouse. Check out the [Lighthouse Report](https://lighthouse-metrics.com/lighthouse/checks/6476d271-f309-4ff3-aa53-3a6863acc0eb).
## Get Started
This portfolio is open-sourced as an Astro theme on [GitHub](https://github.com/vinitshahdeo/portfolio)! Dive into the code and make it your own. Check out the detailed [README](https://github.com/vinitshahdeo/portfolio) on GitHub for everything you need to know.
> *The [source code](https://github.com/vinitshahdeo/portfolio) is licensed under the MIT License - see the [LICENSE](https://github.com/vinitshahdeo/portfolio/blob/main/LICENSE) file for details. The words and images are licensed under [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/).*
## Support
If you enjoyed this template, please consider giving it a [star on GitHub](https://github.com/vinitshahdeo/portfolio). You can also help [spread the word](https://twitter.com/intent/tweet?url=https%3A%2F%2Fgithub.com%2Fvinitshahdeo%2Fportfolio&text=Build%20your%20portfolio%20with%20Astro%20and%20Tailwind%20CSS.%20Here%27s%20a%20sleek%2C%20modern%2C%20highly%20customizable%20Astro%20template%20that%20is%20optimized%20for%20performance%20and%20SEO.%20) by sharing the [blog post](https://vinitshahdeo.dev/create-stellar-developer-portfolio-astro-tailwind-css) on 𝕏 (Twitter). Your support is greatly appreciated!
[](https://peerlist.io/vinitshahdeo/project/stellar-astro-dev-portfolio)
| vinitshahdeo |
1,925,658 | The Best Video Conferencing APIs and SDKs | Adding video conferencing capabilities to your app or website can enhance user engagement, but... | 0 | 2024-07-16T15:49:22 | https://dev.to/emilyrobertsatstream/the-best-video-conferencing-apis-and-sdks-5fhf | videoconferencing, videoapi, videosdk | Adding video conferencing capabilities to your app or website can [enhance user engagement](https://getstream.io/blog/video-engagement/), but building these features from scratch is hard. Before integrating them into your platform, you must solve challenges like real-time audio and video processing, security, and complex UI.
Thankfully, cutting-edge conferencing solutions have come to the rescue. These tools help developers add robust video solutions to their applications, saving valuable time and resources in the process.
This article highlights what to look for in a conferencing API or SDK, the leading providers, and their pricing plans.
## What is a Video Conferencing API or SDK?
An [API](https://getstream.io/glossary/application-programming-interface-api/) is a set of protocols that allow different software programs to communicate with each other.
An SDK is a collection of software tools and components. These help developers build applications with a specific framework, platform, or API. Usually, they include code libraries, documentation, and code samples or snippets.
Real-time communication services cater primarily to app developers. They can get started by obtaining API credentials, setting up a server-side web application, and developing a client-side web application.
Specific to video conferences:
- APIs let you access specific functionalities, like initiating calls and managing participants.
- SDKs provide code and documentation to make it easier to use the video API.
SDKs are invaluable tools for integrating real-time [video conferencing functionality](https://getstream.io/video/video-calling/) into various platforms, such as:
- Communication apps: Face-to-face interaction within messaging platforms.
- Telemedicine apps: Video chat between patients and healthcare professionals.
- Social media platforms: Video calls to connect with friends, fans, and family.
- E-learning platforms: Live lectures.
## What Are the Benefits of Using an API over building Conferencing In-house?
### Faster Adoption
Providers offer pre-built video conference capabilities that you can quickly integrate into your product. This accelerates time-to-market by avoiding months or years spent developing these complex features in-house. You also capitalize on rapidly evolving video tech with minimal custom coding.
### Less In-House Maintenance
Third-party solutions enable you to offload ongoing maintenance, updates, and upgrades to the provider. This frees your engineers to focus on your core product experience.
### Better Security
Components have built-in, enterprise-grade security measures like encryption and access permissions. Providers identify vulnerabilities that individual dev teams may miss.
### More Cost-Effective
There's no need to maintain complex server architectures. So, though there can be an upfront investment, in the long run, it's cost-effective. Plus, you pay for only what you use while benefiting from economies of scale. Capital is freed for revenue-generating initiatives.
### Faster Time to Market
You integrate proven, ready-to-use modules versus undertaking lengthy development cycles yourself. Businesses can then quickly launch products and services, gaining a competitive edge in the market.
### Scalability
[Video conferencing solutions](https://getstream.io/blog/video-conferencing-nextjs/) must handle scale seamlessly, from small group calls to large broadcasts. Ready-made components leverage cloud infrastructure for elastic scaling. You gain access to virtually unlimited capacity compared to self-hosted environments that may be prone to bottlenecks.
## Key API Features for Conferencing Apps
Here are some features to look for in video conference services. You may not need all of them --- so choose features based on your needs.
### Core Audio/Video Features
At the heart of any video app lies robust audio and video capabilities. Look for providers that support:
- High-quality video streaming with features like HD resolution, [low latency](https://getstream.io/glossary/low-latency/), and seamless switching between camera sources
- High frames per second (FPS) for smooth video
- Reliable audio conference with noise suppression and echo cancellation
- Compatibility across different devices, operating systems, and browsers
- Call management
- Screen sharing functionality
- Video recording
- Multi-party and peer-to-peer calling
### Customization
If you want the flexibility to tailor the video app experience to your brand and user needs, look for these features:
- Embeddable UI components
- White-labeling and branding
- Virtual backgrounds and effects like blur
### Collaboration
To improve productivity and engagement, consider features like:
- [Real-time text chat](https://getstream.io/chat/)
- Breakout rooms
- Whiteboard
- Speaker spotlight
- Hand-raising functionality
- Reactions and emoticons
### Security
Look for solutions that implement security features like:
- End-to-end encryption
- User authentication
- Compliance with regulations like GDPR
### Deployment and Management
Validate if your video-calling components provide:
- Flexible deployment options
- Robust video analytics and metrics
- Moderation capabilities (e.g., mute/unmute participants)
- Technical support
- Various pricing models
## 7 Best Video Conferencing API Providers
### 1. [Agora](https://www.agora.io/en/products/video-call/): Best for Real-Time Engagement With High-Concurrent Users
Agora provides a real-time voice and live calling API. The API supports an unlimited number of concurrent channels. Each channel can support up to 1 million concurrent users.
Key features include:
- Interactive live streaming
- Cross-platform support (Android, iOS, Windows, Flutter, and Unity)
- Screen sharing
- Real-time chat functionality
- Whiteboard
- Supplemental Enhancement Information (SEI) that improves user experience
- Videos free of lags and jitters even in bad network conditions
- 99.99% uptime
- GDPR, [HIPAA-compliant](https://getstream.io/blog/hipaa-video-conferencing/)
Agora video components have an extensive partner gallery if you want to add additional capabilities. Users praise the platform for high-quality calls that remain clear as more users join. Pricing depends on the features you want to add. However, it's free for up to 10,000 minutes every month.
### 2. [Stream](https://getstream.io/video/): Best for Feature-Rich User Experiences
Stream's performant SDKs for leading software frameworks and intuitive UI kits make building feature-rich [in-app video conferencing](https://getstream.io/video/video-calling/) quick and painless.
Key features include:
- Pre-built UI kit to easily add responsive elements like logos, colors, and typefaces
- One-to-one and group calls and HD videos
- Global edge network for low-latency calls
- Live conference and webinar functionality
- Unlimited media and file sharing
- Multi-platform support
- Detailed developer documentation for video API integration
- Both SaaS and self-hosted option
You can use Stream for use cases like healthcare, social, HR, recruitment, and finance. It supports a variety of SDKs like [React](https://getstream.io/video/sdk/react/), [React Native](https://getstream.io/video/sdk/react-native/), [iOS](https://getstream.io/video/sdk/ios/), [Android](https://getstream.io/video/sdk/android/), [Flutter](https://getstream.io/video/sdk/flutter/), [Unity](https://getstream.io/video/sdk/unity/), and [Javascript](https://getstream.io/video/sdk/javascript/).
The SaaS option has multiple [pricing plans](https://getstream.io/pricing/#video): ranging from a free plan to custom enterprise plans.
### 3. [Dyte](https://dyte.io/): Best for Immersive Live Experiences
Dyte uses WebRTC and optimized streaming protocols (HTTP Live Streaming or HLS) to deliver ultra-low-latency video streams. It also uses Real-Time Messaging Protocol ([RTMP](https://getstream.io/blog/real-time-messaging-protocol/)) to host high-definition videos easily.
You can host webinars with live transcription and interactive elements like built-in chat, polls, and quizzes to create immersive experiences. Engagement features like emoticons, screen sharing, private chats, GIF and image sharing, and backdrops are also available.
Key features include:
- Call recording facility
- Breakout rooms
- Custom UI support
- Low-code processes
- SOC 2, HIPAA, and GDPR compliance
- 10,000 free minutes monthly
After the free tier, the charges are $0.004 per user per minute.
### 4. [Daily](https://www.daily.co/): All-In-One Solution
Daily's video solution has features for all use cases and has robust analytics and rich mobile experiences.
Key features include:
- Ability to host 100,000 real-time active participants with its global mesh network in 30 availability zones
- <13ms median first-hop latency or less for 5 billion people
- End-to-end encryption and serverless peer-to-peer modes for data protection
- Adheres to SOC 2, GDPR, and HIPAA regulations
- Integrates easily with AI platforms like ChatGPT and supports noise cancellation and real-time transcription
- Recording
- Ability to create animated graphics and custom layouts in multi-party live streams and recorded content
It provides 10,000 free minutes every month. If you want more, there's usage-based pricing. Volume discounts are available, and startups can get special pricing credits.
### 5. [Amazon Chime](https://aws.amazon.com/chime/chime-sdk/): Best SDK for Large Webinars
Amazon Chime SDK allows developers to add real-time audio, video, and messaging features with machine learning. You can deliver real-time content to 10,000 members. Its live connector lets you stream videos to large audiences on your streaming platform.
You can use client libraries like iOS, Android, Windows, and JavaScript to enable voice and video on WebRTC-enabled browsers.
Key features include:
- Video simulcast and [scalable video coding](https://getstream.io/glossary/scalable-video-coding/) (SVC) for better quality across devices
- Content sharing
- Mute controls and volume notifications
- Device controller to manage sound input and output
- Pre-built and customizable bandwidth features to control video bandwidth
- Background blur for visual privacy
- Amazon Voice Focus for noise reduction
Pricing is pay-as-you-go.
### 6. [Apphitect](https://www.apphitect.ae/instant-messaging-solution.php): Top On-Premise Option
Apphitect video conferencing API is a self-hosted solution that can scale up to 1 billion conversations. It offers 99.999% uptime SLA and 100ms latency.
Key features include:
- 150+ chat features that fit any iOS, Android, and web application
- White-label functionality to add your logo, color, and other custom features
- SOC 2, HIPAA, and GDPR-compliant
- Real-time chat with push notifications, group chat, file transfer, spell check, and cross-platform messaging
- One-to-one video chats, conference scheduling, and screen sharing
Contact their sales team for pricing.
### 7. [Cometchat](https://www.cometchat.com/voice-and-video-calls): Best for Broad Platform Coverage
Cometchat's video call SDKs help you integrate real-time audio and video conferencing technology into your apps. It has all the core features for video conferences, like whiteboards, screen sharing, group calling, one-to-one calling, presenter mode, and moderator mode. Cometchat is a good option if you want support for a wide range of technologies like React, Angular, Vue, iOS, Flutter, Android, Kotlin, and PHP.
Key features include:
- Pre-built workflows for calling: You can create WhatsApp-style direct calling and [Zoom-style meeting rooms](https://getstream.io/blog/swiftui-video-conferencing-app/)
- Call recording
- HIPAA, GDPR, PIPEDA, SOC 2, and ISO 27001 compliance
- Modular architecture to customize SDK and UI kits
- 99.99% uptime
- No-code widget to add code for your web app in minutes
Cometchat is free for 25 users and has an "Essential" and "Pro" pricing structure for $109/month and $529/month, respectively.
## Did You Find the Right Conferencing API or SDK?
Integrating video conference capabilities into your applications can open new avenues for collaboration, engagement, and growth. But choose the wrong one, and you risk damaging your brand's reputation. By selecting the right conferencing solutions, you can streamline development, reduce time-to-market, and deliver positive user experiences. | emilyrobertsatstream |
1,925,661 | Understanding Health Probes in Kubernetes | Hello everyone, welcome back to the CK2024 blog series! This is blog number 18 and we’ll dive into... | 0 | 2024-07-16T15:52:35 | https://dev.to/jensen1806/understanding-health-probes-in-kubernetes-1b13 | kubernetes, devops, docker | Hello everyone, welcome back to the CK2024 blog series! This is blog number 18 and we’ll dive into health probes in Kubernetes: liveness probes, readiness probes, and startup probes. We’ll explore these concepts in detail with hands-on practice.
### What Are Health Probes?
Before we get into the demo, let’s understand what health probes are in Kubernetes. Health probes are mechanisms used to monitor and manage the health of your applications running in Kubernetes. There are three main types of probes:
1. **Liveness Probes**: Ensure your application is running. If the liveness probe fails, Kubernetes will restart the container.
2. **Readiness Probes**: Ensure your application is ready to serve traffic. If the readiness probe fails, Kubernetes will stop sending traffic to the container.
3. **Startup Probes**: Used for slow-starting applications. Ensures that the application has started successfully before running liveness or readiness probes.
These probes help in maintaining the health and availability of your applications by automatically recovering from failures.
### Liveness Probes
Liveness probes monitor your application and restart the container if it fails. This is useful when your application crashes due to intermittent issues that can be resolved with a restart.
Here's an example of a liveness probe using a command:
```
apiVersion: v1
kind: Pod
metadata:
name: liveness-exec
spec:
containers:
- name: liveness
image: busybox
args:
- /bin/sh
- -c
- touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
livenessProbe:
exec:
command:
- cat
- /tmp/healthy
initialDelaySeconds: 5
periodSeconds: 5
```
In this example, the liveness probe runs a command to check if a file exists. If the file doesn’t exist, the probe fails, and Kubernetes restarts the container.
### Readiness Probes
Readiness probes ensure your application is ready to serve traffic. If the readiness probe fails, the container is removed from the service’s endpoints, stopping it from receiving traffic until it is ready again.
Here's an example of a readiness probe using an HTTP GET request:
```
apiVersion: v1
kind: Pod
metadata:
name: readiness-http
spec:
containers:
- name: readiness
image: my-app
readinessProbe:
httpGet:
path: /healthz
port: 8080
initialDelaySeconds: 5
periodSeconds: 5
```
In this example, the readiness probe sends an HTTP GET request to /healthz. If the response is not successful, the probe fails, and the container stops receiving traffic.
### Startup Probes
Startup probes are used for applications that take a long time to start. This probe ensures the application starts successfully before the liveness and readiness probes are activated.
Here’s an example of a startup probe:
```
apiVersion: v1
kind: Pod
metadata:
name: startup-probe
spec:
containers:
- name: startup
image: my-app
startupProbe:
httpGet:
path: /healthz
port: 8080
initialDelaySeconds: 10
periodSeconds: 10
```
In this example, the startup probe sends an HTTP GET request to /healthz. It will wait for the initial delay before performing the first check and continue at specified intervals. If the probe fails, the container will be restarted.
### Hands-On Practice
To reinforce your understanding, we’ll do a demo and configure these probes in a Kubernetes cluster. Follow along in the video to see the implementation in action.
#### Liveness Probe Demo
We’ll create a pod with a liveness probe that checks if a file exists:
1. Create a YAML file for the pod configuration:
```
apiVersion: v1
kind: Pod
metadata:
name: liveness-exec
spec:
containers:
- name: liveness
image: busybox
args:
- /bin/sh
- -c
- touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
livenessProbe:
exec:
command:
- cat
- /tmp/healthy
initialDelaySeconds: 5
periodSeconds: 5
```
2. Apply the configuration:
```
kubectl apply -f liveness-exec.yaml
```
3. Observe the pod behavior:
```
kubectl get pods -w
```
You’ll see that the pod restarts when the file is removed, indicating the liveness probe failure.
### Readiness Probe Demo
We’ll create a pod with a readiness probe that checks an HTTP endpoint:
1. Create a YAML file for the pod configuration:
```
apiVersion: v1
kind: Pod
metadata:
name: readiness-http
spec:
containers:
- name: readiness
image: my-app
readinessProbe:
httpGet:
path: /healthz
port: 8080
initialDelaySeconds: 5
periodSeconds: 5
```
2. Apply the configuration:
```
kubectl apply -f readiness-http.yaml
```
3. Observe the pod behavior:
```
kubectl get pods -w
```
The pod will only start receiving traffic once the readiness probe passes.
### Startup Probe Demo
We’ll create a pod with a startup probe:
1. Create a YAML file for the pod configuration:
```
apiVersion: v1
kind: Pod
metadata:
name: startup-probe
spec:
containers:
- name: startup
image: my-app
startupProbe:
httpGet:
path: /healthz
port: 8080
initialDelaySeconds: 10
periodSeconds: 10
```
2. Apply the configuration:
```
kubectl apply -f startup-probe.yaml
```
3. Observe the pod behavior:
```
kubectl get pods -w
```
The startup probe ensures the application is fully started before the liveness and readiness probes are activated.
### Conclusion
In this blog, we’ve explored health probes in Kubernetes, including liveness, readiness, and startup probes. These probes help maintain the health and availability of your applications by automatically recovering from failures.
For further reference, check out the detailed YouTube video here:
{% embed https://www.youtube.com/watch?v=x2e6pIBLKzw&list=WL&index=13&t=43s %}
Happy learning! | jensen1806 |
1,925,662 | 7 Best Chat APIs for Web, Mobile, and Desktop Apps | A chat API is a fast, convenient way to incorporate real-time messaging and advanced chat features... | 0 | 2024-07-16T15:54:33 | https://dev.to/emilyrobertsatstream/7-best-chat-apis-for-web-mobile-and-desktop-apps-3bn2 | chatapi, webchatapi, mobilechatapi | 
A [chat API](https://dev.to/mikeranellone/what-is-a-chat-api-513d) is a fast, convenient way to incorporate real-time messaging and advanced chat features into your app. By paying an ongoing license fee, you gain access to ready-made chat functionalities, cloud hosting, and technical support. Using a pre-packaged vendor can reduce development time and cost and give you the flexibility to scale as your user base grows.
## Essential Messaging API Features
[Seventy-five percent ](https://www.postman.com/state-of-api/api-first-strategies/#api-first-strategies)of API professionals agree that developers who work at API-first companies create better software and integrate with partners faster. Of course, being API-first means knowing what chat features you need to benefit your business. Here are a few must-have features for an [in-app chat API provider](https://getstream.io/chat/).
### Global Edge Infrastructure
High latency can negatively impact the user experience, such as delayed response times for sent and received messages. Choose a messaging solution that uses a [global edge network](https://getstream.io/blog/chat-edge-infrastructure/) — a distributed system of servers placed in various geographical locations — to close the gap between the cloud and your users. This will help reduce latency and ensure a better chat experience for your users no matter where they're located.
### Advanced Moderation
Choose a service with advanced moderation and filters to prevent users from sharing malicious text and images. This feature is particularly useful for gaming, where an estimated 7.9% of cyberbullying occurs through live multiplayer interactions.
Moderators and admins can flag and remove potentially dangerous, offensive, and spammy content using moderation tools. They can also use profanity filters and block lists to remove offensive language and prevent known offenders from entering a chat space. [AI moderation](https://getstream.io/automated-moderation/) can automatically scan and flag suspicious images, too.
### Support For Millions of Users
Most vendors have limited monthly active users (MAU) and concurrent users. Choose a vendor that can reliably scale to support your growing user base and ensure your app can scale comfortably. Do you expect your user count to be in the millions? Pick a vendor that can handle a high volume of MAUs and concurrent connections.
7 Best Chat APIs for 2024
-------------------------
With so many solutions—from Twilio and Stream to TalkJS—choosing the right one can be difficult. Here's a collection of the best chat APIs to make the choice easier.
### 1. [Stream Chat](https://getstream.io/chat/)
Stream's real-time communication APIs let you design, build, and integrate chat messaging functionality into your apps. With its user-friendly [UI kits](https://getstream.io/chat/ui-kit/) for Sketch, Figma, and Adobe xD, you can create a customizable chat experience for various use cases.
With Stream, you can rapidly build a feature-rich and fully customizable chat platform. The platform can support up to 5 million concurrent users on a single channel. Plus, [the chat global edge network](https://getstream.io/blog/chat-edge-infrastructure/) provides a low latency chat experience and a 99.999% uptime guarantee.
#### Key features:
- Pre-built Stream libraries and components
- Full multi-tenancy support
- Unlimited participants
- AI-based AutoMod
- PIP and background calling
- Robust security and compliance
- 99.999% uptime guarantee
Price: A free plan is available for up to 100 monthly active users (MAU). Paid plans start at $399/month.
Integrations: Eight backend clients and nine SDKs.
Security and compliance: Stream includes compliance for [HIPAA](https://getstream.io/chat/solutions/healthcare/), GDPR, SOC2 Type II, ISO27001, ISO 20243, and SSAE 16.
Free trial: 30-day free trial period
Platform, language, and tech stack: [React](https://getstream.io/chat/sdk/react/), [Android](https://getstream.io/chat/sdk/android/), [React Native](https://getstream.io/chat/sdk/react-native/), [iOS](https://getstream.io/chat/sdk/ios/), [Flutter](https://getstream.io/chat/flutter/tutorial/), [Unreal](https://getstream.io/chat/sdk/unreal/), [Angular](https://getstream.io/chat/sdk/angular/), [Unity](https://getstream.io/chat/sdk/unity/), and [UI Kits](https://getstream.io/chat/ui-kit/).
Best for: Real-time chat messaging for billions of users in EdTech, FinTech, dating, fitness, Telehealth, gaming, job recruiting, delivery apps, transport, logistics, and real estate.
### 2. [Agora Chat](https://www.agora.io/en/products/chat/)
Agora Chat SDK lets you integrate private and group messaging into your applications. Features you can integrate include chat analytics, media messages, read receipts, and more.
Agora Chat also supports third-party extensions, including GIFs, emoticons, and stickers to personalize the chat experience.
#### Key features:
- Profanity filter
- Chat analytics
- Auto message translation
- Rich media messages
- Channel and user management
Price: From $349/month.
Integrations: Support over 50 third-party integrations, including HTC Vive, Nexplayer, and Okta.
Security and compliance: Identity and access management, data protection and encryption, and network geo-fencing. Compliant with ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018, and SOC 2 Report.
#### Free trial: Free for up to 500 monthly users.
Platform, language, and tech stack: Supports Android, iOS Objective-C, iOS Swift, Web, React Native, Flutter, Unity, and Windows.
Best for: Message translation and customized messaging experiences
### 3. [PubNub Chat](https://www.pubnub.com/solutions/chat/)
PubNub allows you to build and integrate real-time chat capabilities into your applications. With PubNub chat, you can build a chat app from scratch or integrate one into your existing applications.
There are two ways to create a chat with PubNub. You can either use the Chat SDK to call the PubNub API through a range of predefined methods or use the PubNub Components in React or React Native.
#### Key features:
- No concurrency or channel limits
- Serverless functions
- 24/7 global customer support
- Demos and tutorials
- Message moderation features
Price: Starting at $49/month.
Integrations: Up to 56 third-party integrations, including OpenAI GPT, Microsoft Power BI, and more.
Security and compliance: Support compliance for regulatory environments such as ISO 27001, HIPAA, GDPR, SOC2 Type 2, and CCPA.
Free trial: Free trial for up to 200 MAUs or 1 million monthly transactions.
Platform, language, and tech stack: React and React Native.
Best for: Real-time streaming and secure file sharing.
### 4. [Twilio Conversations](https://www.twilio.com/en-us)
Twilio has sunset its [programmable chat API](https://getstream.io/blog/twilio-programmable-chat-migration-guide/) but offers a Conversations API for businesses to interact with customers through voice, SMS, video, chat, and email. Twilio also provides other products such as Twilio Segment (a customer data platform) and Twilio Trusted Activation (for user activation, authentication, verification, and secure online transactions).
#### Key features:
- Multichannel messaging
- Message persistence
- Cloud-based archives
- Web and mobile SDKs
- Cross-channel orchestration
- Participant management
- Scoped webhooks
- Media support
- Delivery statuses
Price: You can pay $0.05 per active monthly user by usage, and if you want to allow your users to add photos, video, and other file types to their conversations, you pay $0.25 per GB of stored media per month.
Integrations: Twilio's Conversations API has limited integrations.
Security and compliance: SOC2 compliant and HIPAA-ready.
Free trial: Yes, you can gain access to Twilio for free.
Platform, language, and tech stack: Javascript, Android, and iOS.
Best for: Apps looking for affordable and transparent monthly usage billing.
### 5. [CometChat](https://www.cometchat.com/chat-and-messaging)
CometChat lets you integrate a range of versatile and feature-rich chat SDK and UI kits into your app.
With CometChat, you can incorporate one-on-one direct messaging and public and private group chat into your app. It also supports all types of messages, including text, audio, gifs, and reactions.
#### Key features:
- Direct messaging and group chats
- Rich media previewers
- Message translation
- Image moderation and profanity filter
- In-depth analytics
Price: From $119/month per environment
Integrations: Webhook, SendGrid, and more.
Security and compliance: Compliant with GDPR, SOC2, HIPAA, and ISO 27001.
Free trial: Free sandbox plan for up to 25 users
Platform, language, and tech stack: React, Angular, Vue, React Native, iOS, Android Java, Android Kotlin, Ionic/Capacitor, Flutter, WordPress, PHP, and Laravel.
Best for: Website integrations
### 6. [TalkJS](https://talkjs.com/)
TalkJS offers flexible components that support a range of use cases. With its pre-built UI and one-on-one chats, group chats, livestream chats, and AI chatbots to your applications.
With their SDKs, you can quickly integrate chat into any mobile application. Plus, you can incorporate moderation and analytics to allow users to moderate conversions through the REST API.
#### Key features:
- Pre-built UI and notifications
- 1v1, group, live stream, and AI chatbots
- Stickers, file sharing, and email integration
- Customizable TalkJS themes
- Push, email, SMS, and desktop notifications
Price: From $279/month
Integrations: Up to 8 partnered third-party integrations, including Zoom, WordPress, and more.
Security and compliance: GDPR-compliant and have a Data Processing Addendum (DPA). All data is encrypted at rest and in transit, with no tracking or analytics, and unsent drafts are stored in local storage.
Free trial: You can develop and test apps for free. You must pay once you start using TalkJS with real users.
Platform, language, and tech stack: Javascript, Flutter, and React Native.
Best for: Minimum viable products (MVPs)
### 7. [MessageBird](https://bird.com/)
MessageBird offers a chat widget within its suite of holistic marketing cloud services, which enables customers to reach out on any webpage or app screen using an omnichannel messaging platform for Live Chat, WhatsApp, SMS, and more.
#### Key features:
- Chatbots
- Automation
- Conversational forms
- Push notifications
Price: MessageBird charges companies based on the number of contacts they are targeting each month; for example, 3,000 contacts would cost $45 per month.
Integrations: OpenAI, WooCommerce, Pipedrive, Jira, Slack, Shopify, Airtable, Salesforce, Active Campaign, and more.
Security and compliance: GDPR and PSD2
Free trial: No, MessageBird does not offer a free trial.
Platform, language, and tech stack: N/A
Best for: Apps in need of an omnichannel automation API in addition to chat.
Choose a Chat API That Supports Your App
-----------------------------------------
With so many communication solutions available, choosing the right one can be challenging. Familiarizing yourself with some of the must-have features and best providers in the market can help you make an informed choice.
You can build a chat app from scratch if you're not looking to scale or provide a feature-rich experience. However, you must understand what [building a chat app with real-time infrastructure](https://getstream.io/blog/building-chat-rti-vs-api/) (RTI) entails before you dedicate time and resources to add this functionality to your application. | emilyrobertsatstream |
1,925,665 | Join the NBA YoungBoy Merch Community on Reddit! | Subscribe to our subreddit to join the discussion and stay updated on NBA YoungBoy Merch. Share your... | 0 | 2024-07-16T15:56:14 | https://dev.to/nbayoungboymerchshop1/join-the-nba-youngboy-merch-community-on-reddit-31fi | nbayoungboymerch, reddit | Subscribe to our subreddit to join the discussion and stay updated on NBA YoungBoy Merch. Share your thoughts, post your collections, and connect with other dedicated fans. Reddit is the perfect platform for in-depth discussions and exclusive insights.
https://www.reddit.com/user/nbayoungboymerchshop/
 | nbayoungboymerchshop1 |
1,925,669 | Projen just put the fun back into releasing OS for me | projen might just be a scaffolding tool | 0 | 2024-07-16T22:24:35 | https://dev.to/sebs/projen-just-put-the-fun-back-into-releasing-os-for-me-cp5 | npm, projen, typescript, node | ---
title: Projen just put the fun back into releasing OS for me
published: true
description: projen might just be a scaffolding tool
tags: npm, projen, typescript, nodejs
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/xnm8syj58c7pmt8dpt9v.jpg
# Use a ratio of 100:42 for best results.
# published_at: 2024-07-13 20:10 +0000
---
Releasing open-source software has always been a gratifying experience. The barriers to doing so are incredibly low these days, thanks to platforms like NPM, NuGet, and other package management solutions that make it straightforward to distribute code where it’s needed. The expansive ecosystem of NPM, in particular, despite its size and influence, still has plenty of room for well-crafted code. Modern development tools offer an enjoyable developer experience, enabling the creation and distribution of high-quality code efficiently.
## Setup - Ain't Nobody Got Time for That
However, the setup for modern Node.js projects can be tedious. Configuring TypeScript, setting up linting, implementing testing and CI support, ensuring automated builds of pull requests, managing automated dependency updates, and supporting different Node.js engines and versions—these tasks can lead to a significant amount of "yak shaving," which I'd prefer to avoid.
```json
{
.....
"scripts": {
"test": "mocha -t 20000",
"posttest": "npm run lint",
"lint": "jshint lib test",
"docs": "npx documentation build ./lib/init.js -f html -o out",
"preversion": "npm run lint && npm run changelog",
"postversion": "git push && git push --tags",
"changelog": "rm ./docs/CHANGELOG.md && npx changelog https://github.com/sebs/etherscan-api all > ./docs/CHANGELOG.md && git add ./docs/CHANGELOG.md && git commit ./docs/CHANGELOG.md -m changelog",
"build": "npm run test && npm run docs"
}
}
```
> "Yak shaving" is a term often used in software development and other technical fields to describe a series of seemingly unrelated and often tedious tasks that need to be completed before you can work on the task you initially set out to do. The phrase evokes an image of performing an absurdly detailed and indirect task (like shaving a yak) that is only tangentially related to the main goal.
While all these configurations are achievable, they require a considerable investment of time. Moreover, many of these options come with deep rabbit holes, each accompanied by opinionated communities. This makes it challenging to streamline the setup process. If only there was a way to kickstart a project with a set of default assumptions, build what’s necessary, and tweak the setup when opinions drastically differ.
## Projen - A Bunch of Opinionated Helpers with a Scaffolder
Enter Projen. Projen is a tool that has changed how I approach building open-source projects. It is essentially a scaffolding tool that not only sets up your project but also maintains it. Projen provides a set of opinionated defaults that can be customized as needed, allowing you to focus on writing code rather than managing the setup and maintenance of your project.
What makes Projen great is its ability to automate tedious tasks. It can configure your TypeScript setup, ensure linting standards are in place, set up testing frameworks, and integrate CI/CD pipelines effortlessly. Projen also manages automated dependency updates and helps support different Node.js versions This level of automation significantly reduces the time and effort required to maintain a project.
Projen works by defining your project configuration in a single file, typically a .projenrc.js or .projenrc.ts file. This file acts as the blueprint for your project, where you specify all the configurations and dependencies. Projen then generates and maintains all the necessary files and settings based on this blueprint. This approach ensures that your project remains consistent and up-to-date with minimal manual intervention.
```typescript
import { cdk, javascript } from 'projen';
const project = new cdk.JsiiProject({
author: 'Sebastian Schürmann',
authorAddress: 'sebs@2xs.org',
defaultReleaseBranch: 'main',
jsiiVersion: '~5.4.0',
name: 'robots-jsii',
packageManager: javascript.NodePackageManager.NPM,
projenrcTs: true,
repositoryUrl: 'https://github.com/ssebs/robots-jsii.git',
entrypoint: 'lib/robots-txt-parser.js',
publishToPypi: {
distName: 'robots-txt-parser',
module: 'robots_txt_parser',
},
// deps: [], /* Runtime dependencies of this module. */
// description: undefined, /* The description is just a string that helps people understand the purpose of the package. */
devDeps: [
'@jest/globals',
], /* Build dependencies for this module. */
// packageName: undefined, /* The "name" in package.json. */
});
project.synth();
```
One of the key benefits of Projen is its extensibility. It supports a wide range of project types, including Node.js libraries, CDK constructs, and even Python projects. You can also create your own Projen components to extend its functionality further. This flexibility makes Projen a valuable tool for any developer looking to streamline their project setup and maintenance processes.
Using Projen has reignited my lust for releasing open-source software. The time saved on setup and maintenance allows me to focus more on writing code and contributing to the community. The built-in best practices and automation features provided by Projen ensure that my projects are well-maintained without requiring constant manual updates.
Projen has put the fun back into releasing for me by automating the tedious aspects of project setup and maintenance. Its opinionated helpers and scaffolding capabilities make it an indispensable tool for modern development workflows. If you’re looking to streamline your open-source project setup and maintenance, I highly recommend giving Projen a try. It might just transform the way you approach your projects, as it did for me. Projen is the base on many cdk components these days and I am starting to make the software 'my own' right now.
* [Projen on github](https://github.com/projen/projen)
* [Projen and CDK](https://aws.amazon.com/de/blogs/devops/getting-started-with-projen-and-aws-cdk/)
* [Migrating CDK Constructs to Projen and JSII](https://www.sebastianhesse.de/2021/03/01/migrating-a-cdk-construct-to-projen-and-jsii/) | sebs |
1,925,670 | Follow NBA YoungBoy Merch on Quora! | Get your questions answered and follow NBA YoungBoy Merch on Quora. Engage in insightful discussions... | 0 | 2024-07-16T15:57:12 | https://dev.to/nbayoungboymerchshop1/follow-nba-youngboy-merch-on-quora-25d6 | nbayoungboymerch, quora | Get your questions answered and follow NBA YoungBoy Merch on Quora. Engage in insightful discussions and learn more about the latest merch trends and releases. Quora is the perfect platform for deep dives and fan engagement.
https://nbayoungboymerchshop.quora.com/
 | nbayoungboymerchshop1 |
1,925,671 | Explore NBA YoungBoy Merch on Sketchfab! | Check out our 3D models and visualizations of NBA YoungBoy Merch on Sketchfab. Get a closer look at... | 0 | 2024-07-16T15:58:16 | https://dev.to/nbayoungboymerchshop1/explore-nba-youngboy-merch-on-sketchfab-58gc | nbayoungboymerch, sketchfab | Check out our 3D models and visualizations of NBA YoungBoy Merch on Sketchfab. Get a closer look at the details and craftsmanship of your favorite pieces. Sketchfab is the ideal platform for a detailed and immersive merch experience.
https://sketchfab.com/nbayoungboymerchshop
 | nbayoungboymerchshop1 |
1,925,809 | Buy Old Gmail Accounts | https://gmusashop.com/product/buy-old-gmail-accounts/ Buy Old Gmail Accounts We have a rich history... | 0 | 2024-07-16T18:10:36 | https://dev.to/fimiris640/buy-old-gmail-accounts-27h1 | aws, typescript, css, news | ERROR: type should be string, got "https://gmusashop.com/product/buy-old-gmail-accounts/\n\n\n\n\n\nBuy Old Gmail Accounts\nWe have a rich history of offering longstanding Gmail account services, with the Gmail account being one of the highly sought-after services due to its increasing usage. Catering to the rising demand, we provide Gmail account services from various countries that are phone-verified (PVA). Rest assured, you can utilize our services confidently, as we guarantee 100% permanent non-drop accounts.\n\nWhen considering purchasing buy old Gmail accounts, it is essential to prioritize a few key factors in order to make an informed decision. Firstly, it is crucial to verify that the account is a minimum of one year old. This criterion is important as it signifies that the account has had time to establish itself and is less likely to be identified as spam. By adhering to these guidelines, individuals can make confident and well-informed choices when acquiring previously owned Gmail accounts.\n\nWhat Is Old Gmail Accounts?\nFor many individuals, the familiar scenario of owning obsolete Gmail accounts arises, often resulting from initial forays into email systems. However, a shift to more tailored accounts for work or personal use can relegate these old accounts to redundancy. Whether initially acquired for specific purposes like newsletter subscriptions or online services, pondering over the deletion process for these outdated Gmail accounts is a natural concern.\n\nEnhance your online presence effectively by considering the option of purchasing established Gmail accounts. Leveraging the positive reputation of these accounts can significantly enhance your visibility and credibility among potential customers and clientele.\n\nWith Gmail being a widely utilized email platform, tapping into this resource can offer a strategic advantage, connecting you with your target audience in a meaningful way. Investing in reputable Gmail accounts can be a valuable asset in optimizing your online visibility and engagement with a broad range of users.\n\nBefore deciding to delete your old Gmail account, it is essential to consider a few key points. Firstly, assess whether you still require access to the account, as deactivation might be a suitable alternative. By changing the password and recovery options, you can effectively block unauthorized access while retaining the ability to reactivate the account if necessary.\n\nHowever, if access to the account is no longer needed, opting for permanent deletion is a viable choice. Careful consideration of these factors will help you make an informed decision regarding the management of your Gmail account. Buy Old Gmail Accounts.\n\n \n\nWhy Do People Buy Old Gmail Accounts?\nThere are various reasons why individuals may choose to purchase an old Gmail account. Despite the ease of obtaining new Gmail accounts, some may perceive an older account to hold value due to the longevity of the email address’s ownership. This symbolic value can signify a sense of stability, consistency, and credibility in the digital realm, enhancing the account’s perceived worth.\n\nWhether one perceives it as a positive or negative development depends on their perspective, as individuals have the opportunity to purchase old Gmail accounts that are rich in personal information.\n\nThe extensive data stored within these accounts could potentially be leveraged for spamming the original owner or gaining unauthorized access to their additional accounts. Such a scenario presents a tangible risk that underlines the importance of safeguarding personal data and the necessity for stringent security measures in the digital age.\n\nHow to verify a Gmail Accounts?\n \n\nThere are multiple methods available to verify a Gmail account, each offering different options to users. One way involves utilizing a verification code sent to your phone, while another method entails linking your account to a credit card. Additionally, verifying your account by associating it with another email address is also possible.\n\nThe most widespread approach to verifying a Gmail account involves using a phone number. During the Gmail account registration process, you’ll be prompted to provide your phone number, following which Google will send a verification code to your phone for you to input and confirm your account. Buy Old Gmail Accounts.\n\nOne alternative method to validate a Gmail account is through email verification, especially when a phone number is unavailable or if receiving the verification code poses issues. Google will dispatch a verification link to the designated email address for confirmation. Simply clicking on this link will authenticate your account. In cases where you encounter obstacles in verifying your Gmail account, exploring various troubleshooting options is advised.\n\nBest Place to Buy Gmail Accounts\n \n\nIf you find yourself needing multiple email accounts for either work-related tasks or personal use, or perhaps seeking a fresh start with a clutter-free inbox, acquiring Gmail accounts could be a viable solution. However, it’s crucial to approach this decision carefully.\n\nWhen selecting the platform from which to purchase your Gmail account, consider factors like security, reliability, and customer support to ensure a seamless and trustworthy experience. Remember, the right choice can enhance your productivity and communication efficiency significantly. Buy Old Gmail Accounts.\n\nWhen considering purchasing a Gmail account, it can offer a convenient solution for acquiring multiple email addresses or starting anew. It is paramount to exercise caution when selecting a vendor and verifying the type of account being purchased to mitigate potential risks associated with unauthorized access or account misuse.\n\nBy ensuring these critical aspects are taken into account, acquiring a Gmail account can be a beneficial and practical choice for anyone looking to manage multiple email addresses or establish a fresh digital presence.\n\n \n\nConclusion\nWhen considering purchasing buy old Gmail accounts, it’s essential to keep a few key points in mind to ensure a successful transaction. Firstly, the age of the account plays a crucial role in its reliability and potential value, with older accounts usually being more desirable.\n\nSecondly, evaluating the account’s recent activity levels is important as active accounts tend to hold a higher value. By taking these factors into consideration before making a purchase, you can make an informed decision that meets your needs and preferences effectively.\n\nContact Us / 24 Hours Reply\nTelegram: @gmusashop\nWhatsApp: +1 (385)237-5318\nEmail: gmusashop@gamil.com" | fimiris640 |
1,925,674 | Stay Updated with NBA YoungBoy Merch on Band! | Join our Band group to stay in the loop with the latest NBA YoungBoy Merch updates. Get exclusive... | 0 | 2024-07-16T15:59:35 | https://dev.to/nbayoungboymerchshop1/stay-updated-with-nba-youngboy-merch-on-band-e6l | nbayoungboymerch, band | Join our Band group to stay in the loop with the latest NBA YoungBoy Merch updates. Get exclusive access to announcements, events, and special offers. Band is your go-to platform for community engagement and real-time updates.
https://band.us/@nbayoungboymerchshop
 | nbayoungboymerchshop1 |
1,925,678 | Unveiling the Wonders of Amboseli National Park | : A Traveler's Guide Amboseli National Park, a jewel of Kenya adorned by the majestic Mount... | 0 | 2024-07-16T16:01:45 | https://dev.to/paukush69/unveiling-the-wonders-of-amboseli-national-park-do8 | travel, safari, adventure | : A Traveler's Guide
[Amboseli National Park,](https://wildbudsafaris.com/) a jewel of Kenya adorned by the majestic Mount Kilimanjaro, beckons adventure seekers and nature enthusiasts alike.
This park, named after a Maasai word for "salty dust," offers breathtaking landscapes teeming with wildlife. From iconic herds of elephants to graceful zebras grazing on the savannas, Amboseli promises an unforgettable encounter with the untamed beauty of Africa. This guide equips you with the knowledge to plan a thrilling and enriching visit, focusing on the top 5 activities that will leave you with lasting memories.
Top 5 Activities in Amboseli National Park:
1. Unveiling Wildlife through Game Drives:
Morning Game Drives: As the sun paints the African sky with vibrant hues, embark on a thrilling game drive in a customized vehicle. Experienced guides will lead you to prime wildlife viewing locations, where you might[ witness majestic elephants ](https://wildbudsafaris.com/)trumpeting their greetings, lions lounging in the golden light, cheetahs embarking on a hunt, and zebras grazing in vast herds. Be on the lookout for giraffes browsing on acacia trees, playful baboons, and a variety of antelopes.
Sunset Game Drives: As the day draws to a close, witness the transformation of the savanna bathed in the warm glow of the setting sun. Predators like lions and hyenas may become more active, while nocturnal creatures begin to emerge. The changing light offers unique photographic opportunities, capturing the silhouette of wildlife against the fiery sky.
2. Lion Tracking: An Unforgettable Adventure:
Embark on a unique adventure with experienced trackers, following the fresh trails of a pride of lions. Learn about lion behavior, their social structure, and hunting techniques. Spotting these magnificent predators in their natural habitat, stalking their prey or lazing in the shade, is an experience that will stay with you forever. Remember, safety is paramount. Always follow your guide's instructions and maintain a safe distance from the animals.
3. A Paradise for Birdwatchers:
With over [400 bird species](https://wildbudsafaris.com/) recorded, Amboseli National Park is a haven for bird enthusiasts. Keep your binoculars handy as you might spot majestic eagles soaring on thermals, colorful flamingos gracing the wetlands with their pink plumage, and vibrant secretarybirds stalking their prey in the tall grasses. Watch out for hornbills with their impressive casques, elegant cranes performing their mating dances, and a dazzling array of smaller songbirds flitting amongst the acacia trees.
4. Immerse Yourself in Culture: Maasai Village Visits
Get a glimpse into the rich traditions of the Maasai people, the indigenous custodians of these lands for centuries. Respectful visits to a Maasai village offer the opportunity to learn about their way of life, their cultural practices, and their deep connection to the environment. Witness traditional dances, demonstrations of beadwork and craft-making, and gain insights into their semi-nomadic lifestyle.
5. Unveiling the Ecosystem: Guided Nature Walks
Lace up your hiking boots and explore the diverse landscapes of Amboseli National Park on a guided nature walk. Experienced guides will point out the smaller wonders often missed on game drives. Learn about the park's unique flora and fauna, the delicate balance of the ecosystem, and the vital role each creature plays. Spot insects, reptiles, and shy mammals that might be[ hiding in the undergrowth.](https://wildbudsafaris.com/) Guided nature walks offer a deeper appreciation for the intricate tapestry of life within Amboseli.
Conclusion: A Journey to Remember
Amboseli National Park offers more than just breathtaking scenery. It's a place where you can witness nature's grandeur, encounter magnificent wildlife, and gain a deeper understanding of the Maasai culture. By choosing these top 5 activities, you'll ensure a well-rounded and unforgettable experience in this captivating corner of Africa. So pack your bags, embrace the spirit of adventure, and get ready to create lasting memories in [Amboseli National Park!](https://wildbudsafaris.com/)
| paukush69 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.