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1,920,433 | Unveiling Algofox: A Beginner's Guide to Automated Trading | Algorithmic trading, or algo trading, involves using computer programs and algorithms to automate... | 0 | 2024-07-12T03:41:14 | https://dev.to/epakconsultant/unveiling-algofox-a-beginners-guide-to-automated-trading-24fi | trading | Algorithmic trading, or algo trading, involves using computer programs and algorithms to automate trading decisions. Algofox positions itself as a user-friendly platform specifically designed to make algo trading accessible to retail investors in India. This article delves into the basic knowledge of Algofox, equipping you with a foundational understanding of its functionalities and potential benefits.
Understanding Algorithmic Trading:
Traditional trading involves manually analyzing markets and placing orders based on your judgment. Algorithmic trading, on the other hand, relies on pre-defined rules and strategies encoded in algorithms. These algorithms can analyze vast amounts of market data, identify trading opportunities, and execute trades automatically based on your set parameters.
What is Algofox?
Algofox is an Indian-based platform designed to simplify algo trading for retail investors. It caters to users with varying levels of experience, offering two primary approaches:
- Backtesting and Building Your Own Algorithms: For the more technical user, Algofox provides tools to backtest your trading strategies. Backtesting involves running your algorithm on historical market data to assess its potential performance. Algofox allows users to code their own algorithms or utilize pre-built logic blocks to construct their trading strategies.
- Copying Strategies from Successful Traders: Algofox also offers a social trading aspect. You can browse and copy trading strategies from successful traders within the platform. This approach allows you to leverage the expertise of others without the need to code your own algorithms.
Benefits of Using Algofox:
- Automation and Discipline: Algo trading removes emotional bias from decision-making. Once your algorithm is set, it executes trades based on pre-defined rules, promoting discipline and potentially reducing impulsive trading decisions.
- Backtesting and Optimization: Algofox allows you to test your strategies on historical data before risking real capital. This helps you refine your algorithms and identify potential weaknesses before deployment.
- Accessibility for Retail Investors: Algofox aims to make algo trading accessible through its user-friendly interface and features like pre-built strategy components. This can be particularly appealing to those who might find traditional coding-heavy algo trading platforms intimidating.
[Unleashing the Power of QuantConnect: A Glimpse into the Future of Algorithmic Trading](https://www.amazon.com/dp/B0CPX363Y4)
Things to Consider Before Using Algofox:
- Market Knowledge: While Algofox simplifies the process, a basic understanding of financial markets and trading principles is still crucial for making informed decisions.
- Risk Management: Algo trading doesn't guarantee success. Algofox offers tools like stop-loss orders to manage risk, but you should still have a robust risk management strategy in place.
- Backtesting Limitations: Backtesting provides valuable insights, but past performance doesn't guarantee future results. Market conditions can change, and your strategy might not perform as well in real-time situations.
Conclusion:
Algofox offers a compelling platform for exploring the world of algo trading. Its user-friendly interface, backtesting capabilities, and social trading features can be particularly attractive for beginners in India. However, remember that algo trading involves inherent risks. Before diving in, equip yourself with basic market knowledge, understand risk management principles, and approach the platform with realistic expectations. | epakconsultant |
1,920,434 | Introduction to JavaScript | We’ll embark on our journey by exploring the history and evolution of JavaScript, understanding its... | 0 | 2024-07-12T03:42:14 | https://dev.to/vashtech/introduction-to-javascript-50l1 | javascript, webdev, beginners, programming | We’ll embark on our journey by exploring the history and evolution of JavaScript, understanding its importance, and setting up your development environment. By the end of this chapter, you’ll have a solid foundation and be ready to start writing your first lines of JavaScript code!
## 1.1 History and Evolution
JavaScript was created in 1995 by Brendan Eich while he was working at Netscape Communications Corporation. Originally named Mocha, it was later renamed to LiveScript, and finally, to JavaScript. Despite its name, JavaScript is not directly related to Java; the name was chosen for marketing reasons.
## 1.2 Why Learn JavaScript?
JavaScript is an essential skill for modern web developers. Here are a few reasons why learning JavaScript is beneficial:
- **Versatility**: JavaScript is used for both front-end and back-end development. You can create interactive web pages, build server-side applications, and even develop mobile apps.
- **Popularity**: JavaScript is one of the most popular programming languages in the world, with a large and active community. This means plenty of resources, lib``raries, and frameworks are available.
- **Career Opportunities**: Proficiency in JavaScript opens up numerous job opportunities, as it's a required skill for many web development roles.
- **Community and Ecosystem**: JavaScript has a rich ecosystem of libraries and frameworks, such as React, Angular, and Node.js, which makes development faster and more efficient.
## 1.3 Setting Up Your Development Environment
Before we start coding, let's set up a development environment. Here’s what you need:
**Text Editor or IDE:**
- Popular choices include Visual Studio Code, Sublime Text, and Atom. For this series, we’ll use Visual Studio Code (VS Code).
- [Download VS Code](https://code.visualstudio.com/)
**Web Browser:**
- Modern web browsers like Google Chrome, Mozilla Firefox, and Microsoft Edge have excellent developer tools for debugging and testing JavaScript code.
- [Download Google Chrome](https://www.googåle.com/chrome/)
**Node.js and npm:**
- Node.js is a JavaScript runtime that allows you to run JavaScript code outside of a web browser. npm (Node Package Manager) is used to manage libraries and dependencies.
- [Download Node.js](https://nodejs.org/en)
## 1.4 Writing Your First JavaScript Code
Now that we have our environment set up, let’s write our first JavaScript code. We’ll start with a simple “Hello, World!” example.
**Creating an HTML File:**
- Open your text editor (VS Code) and create a new file named index.html.
- Add the following code to your index.html
`<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Master Javascript</title>
</head>
<body>
<h1>Hello, World!</h1>
<script src="script.js"></script>
</body>
</html>`
**Creating a JavaScript File:**
- In the same directory, create a new file named script.js.
- Add the following JavaScript code to your script.js file:
`console.log("Hello, World!");`
**Running Your Code:**
- Open index.html in your web browser. You should see “Hello, World!” displayed on the page.
- Open the browser's developer tools (_F12 or right-click > Inspect_), go to the Console tab, and you should see the message "Hello, World!" logged in the console.
Congratulations! You’ve just written and executed your first JavaScript code.
In this chapter, we covered the history and evolution of JavaScript, its importance, and how to set up your development environment. We also wrote and executed our first JavaScript code. In the next chapter, we’ll dive into JavaScript basics, exploring variables, data types, and control flow.
Feel free to leave comments and ask questions as we go along.
**Happy coding!** | vashtech |
1,920,435 | ข้อมูล XML บน Postgres : มารู้จักรุ่นพี่ของวงการแลกเปลี่ยนข้อมูลระหว่าง service กัน | บทนำ ครั้งก่อนเราเคยทำบทความ "ข้อมูล JSON ใน PostgreSQL: โลกใหม่ของการจัดการข้อมูลบน... | 0 | 2024-07-12T06:51:50 | https://dev.to/everthing-was-postgres/khmuul-xml-bn-postgres-maaruucchakrunphiikhngwngkaaraelkepliiynkhmuulrahwaang-service-kan-4da4 | postgres, xml | ##บทนำ##
ครั้งก่อนเราเคยทำบทความ ["ข้อมูล JSON ใน PostgreSQL: โลกใหม่ของการจัดการข้อมูลบน Postgres"](https://dev.to/iconnext/khmuul-json-ain-postgresql-olkaihmkhngkaarcchadkaarkhmuulbn-postgres-3omk) ซึ่งเกี่ยวกับการจัดการข้อมูล JSON ไปแล้ววันนี้เราจะมาคุยเรื่องการจัดการข้อมูลแบบ xml กัน
ในยุคสมัยที่มีการแลกเลี่ยนข้อมูลระหว่าง service ผ่าน API โดยส่งข้อมูลในรูปแบบ JSON เคยทราบไหมว่าสมัยก่อน(สมัยนี้บางระบบก็ยังมีอยู่) เคยมีรูปแบบการแลกเปลี่ยนข้อมูลระหว่าง server โดยโปรโตคอลที่เรียกว่า SOAP(Simple Object Access Protocol) ซึ่งเป็นการแลกเปลี่ยนข้อมูลในรูปแบบ XML
##แล้ว XML คืออะไรล่ะ##
XML(Extensible Markup Language)ก็คือภาษาที่ใช้กำหนดโครงสร้างของข้อมูลแบบข้อความคล้ายกับภาษา HTML ซึ่งก็คือภาษากำหนดโครงสรา้งที่แสดงหน้าเว็บยังไงล่ะโดยรูปแบบของ XML จะประกอบด้วย
- **โครงสร้างแบบต้นไม้:** ข้อมูล XML จะถูกจัดเรียงเป็นโครงสร้างแบบต้นไม้ ประกอบด้วย element attribute และ content
- **Element:** หน่วยพื้นฐานของ XML เปรียบเสมือนแท็กใน HTML แต่ละ element จะมีชื่อและอาจมี attribute เพิ่มเติม
- **Attribute:** ข้อมูลเพิ่มเติมเกี่ยวกับ element เก็บไว้ในรูปคู่ key-value
- **Content:** เนื้อหาที่อยู่ภายใน element อาจเป็นข้อความ element ย่อย หรือ entity references
- **Document:** โครงสร้าง XML ทั้งหมด ประกอบด้วย element attribute และ content
ตามตัวอย่าง
```xml
<?xml version="1.0" encoding="UTF-8"?>
<product>
<name>สินค้า A</name>
<price>100</price>
<stock>50</stock>
<categories>
<category>หมวดหมู่ 1</category>
<category>หมวดหมู่ 2</category>
</categories>
</product>
```
***แล้ว Postgres จัดการข้อมูลชนิด XML อย่างไร***
ตัว postgres ไม่มีประเภทข้อมูล xml โดย postgres จะดำเนินการผ่าน extension ที่ชื่อ xml2 ซึ่งช่วยให้สามารถจัดเก็บ ประมวลผล และดึงข้อมูล XML ในฐานข้อมูล PostgreSQL ได้อย่างมีประสิทธิภาพ โดยรองรับการจัดการประเภทข้อมูลคือ
- xml: เก็บข้อมูล XML แบบดั้งเดิม(text)
- xmlb: เก็บข้อมูล XML แบบ binary
(เอะคุ้นๆ นะ ดังนั้นข้อดีของ xmlb น่าจะคล้ายกับประเภทข้อมูล json)
**การสร้างคอลัมน์ประเภท XML**
```sql
CREATE TABLE products (
id serial PRIMARY KEY,
name varchar(255) NOT NULL,
details xml NOT NULL
);
```
จะเป็นการสร้างตารางที่มีคอลัมน์ details มีข้อมูลชนิด xml ขึ้นมา
**การเพิ่มข้อมูล XML**
```SQL
INSERT INTO products (name, details)
VALUES ('สินค้า A', '<product><name>สินค้า A</name><price>100</price><stock>50</stock></product>');
Use code with caution.
content_copy
```
**การดึงข้อมูล XML**
```SQL
SELECT id, name, details->'name' AS product_name FROM products;
Use code with caution.
content_copy
```
**การแก้ไขข้อมูล XML**
```SQL
UPDATE products
SET details = details || xml '<discount>10</discount>'
WHERE id = 1;
Use code with caution.
```
**ฟังก์ชันสำหรับการประมวลผลข้อมูล XML**
PostgreSQL รองรับฟังก์ชัน XML มากมาย
สำหรับการประมวลผลข้อมูล XML ตัวอย่างฟังก์ชันที่ใช้ทั่วไป ได้แก่:
- xml_parse: แปลงสตริง XML เป็นค่าประเภท XML
- xml_serialize: แปลงค่าประเภท XML เป็นสตริง XML
- xpath: ดึงข้อมูล XML โดยใช้ XPath
**ส่งท้าย**
ถามว่าเรายังจำเป็นต้องเก็บข้อมูล XML อยู่ไหมผมเคยพัฒนาระบบที่ต้องส่งข้อมูลไปยัง service ที่ใช้ SOAP โปรโตคอลในการเชื่อมต่อซึ่งต้องส่งและเก็บข้อมูลการทำ transaction ย้อนหลังได้ตอนนั้นใช้ Microsoft SQL Server ที่มีประเภทข้อมูลเป็น xml ติดมาด้วย อีกทั้งยังมีอีกหลาย service ที่ยังมีการใช้ SOAP หวังว่าบทความนี้จะเป็นประโยชน์บ้างนะครับ
xml_update: อัปเดตข้อมูล XML | iconnext |
1,920,436 | Demystifying Algoji: A Beginner's Guide to Algorithmic Trading in India | Algoji, an Indian software company, offers a platform designed to empower traders, particularly those... | 0 | 2024-07-12T03:44:05 | https://dev.to/epakconsultant/demystifying-algoji-a-beginners-guide-to-algorithmic-trading-in-india-4gf1 | trading | Algoji, an Indian software company, offers a platform designed to empower traders, particularly those in India, to explore the world of algorithmic trading. This article delves into the fundamentals of Algoji, providing a beginner's understanding of its features and potential benefits.
Algorithmic Trading 101:
Traditional trading involves manually analyzing markets and placing orders based on your judgment. Algorithmic trading, on the other hand, utilizes pre-defined rules and strategies encoded in computer programs called algorithms. These algorithms can analyze vast amounts of data, identify trading opportunities, and execute trades automatically based on your set parameters.
What is Algoji?
Algoji offers an algorithmic trading platform specifically geared towards Indian traders. It caters to users with various experience levels, providing tools and functionalities to:
- Develop Your Own Trading Strategies: Algoji allows users to code their own algorithms using a scripting language. This approach offers maximum flexibility for experienced traders to design complex strategies tailored to their specific needs.
- Leverage Pre-built Strategies: Algoji provides a library of pre-built trading strategies based on popular technical indicators like moving averages or Relative Strength Index (RSI). This allows beginners to experiment with algo trading without needing to code from scratch.
- Social Trading: Algoji incorporates a social trading aspect. You can browse strategies created by other users and choose to copy their trades automatically. This offers a way to benefit from the expertise of successful traders.
[How to Launch Your First Crypto Algo Trading Bot on AWS cloud server](https://www.amazon.com/dp/B0CHSLDM4D)
Benefits of Using Algoji:
- Automation and Discipline: By automating trade execution based on pre-defined rules, Algoji removes emotions from the decision-making process. This can help traders maintain discipline and avoid impulsive decisions that might lead to losses.
- Backtesting and Optimization: Algoji allows backtesting your strategies using historical market data. Backtesting helps you assess the potential performance of your algorithms before risking real capital. You can refine your strategies based on backtesting results to optimize their effectiveness.
- Integration with TradingView: Algoji integrates with the popular charting platform TradingView. This allows you to develop and test your strategies directly within the familiar TradingView interface, streamlining your workflow.
Things to Consider Before Using Algoji:
- Market Knowledge: While Algoji simplifies algo trading, a solid understanding of financial markets and trading concepts is still essential. You need to be able to evaluate the logic behind pre-built strategies or effectively code your own algorithms.
- Risk Management: Just like traditional trading, algo trading involves inherent risks. Algoji provides tools like stop-loss orders to manage risk, but it's crucial to have a robust risk management strategy in place.
- Coding Skills (Optional): If you plan to build your own algorithms from scratch, basic coding knowledge is necessary. However, Algoji's pre-built strategies and social trading features can be valuable resources for beginners who aren't comfortable with coding.
Conclusion:
Algoji presents an accessible platform for Indian traders interested in exploring algorithmic trading. Its user-friendly interface, backtesting capabilities, and social trading features offer various entry points for beginners and experienced traders alike. However, remember that algo trading requires market knowledge, risk management strategies, and realistic expectations. Consider Algoji as a tool to enhance your trading strategies, not a guaranteed path to riches.
| epakconsultant |
1,920,437 | Command Line Interface Project | July 11, 2024 | 10:36 pm Link to my app: https://github.com/dgarcia13-99/Coffee-order-app For the... | 0 | 2024-07-12T03:44:43 | https://dev.to/dgarcia1399/command-line-interface-project-239o | ruby, minitest | July 11, 2024 | 10:36 pm
Link to my app: https://github.com/dgarcia13-99/Coffee-order-app
For the CLI Project, I decided to create a coffee shop app that allows a user to view the coffee menu, place an order, and view their order status. Creating this app has been both challenging and rewarding. I was excited to develop an interactive application while utilizing my newfound knowledge of Ruby. I learned quite a lot about creating a Class while working on this project and intend on practicing these concepts.
One of the major challenges I faced while working on this project was determining which information and steps to prioritize. I found myself creating methods that would require a ton of additional steps, so I decided to simply my project so that I can add to it later on. Additionally, I felt constrained by my limited experience and relying on concepts from the Ruby reference.
Despite these challenges, seeing the app come together and function as intended was immensely satisfying. It may not be perfect, and I acknowledge that there are areas where I could improve the efficiency of my code. Yet, the fact that the app works and fulfills its basic functionalities is a testament to my progress in learning Ruby.
Looking ahead, I am eager to continue refining the coffee shop app. I see it as an opportunity not only to enhance my understanding of Ruby but also to explore more advanced concepts and best practices. By persistently iterating on this project, I aim to build upon my skills and develop code that is not only functional but also well-structured and maintainable.
| dgarcia1399 |
1,920,438 | Unveiling Algobulls: A Beginner's Guide to Algorithmic Trading in India | Algobulls positions itself as a comprehensive platform catering to the growing interest in... | 0 | 2024-07-12T03:47:43 | https://dev.to/epakconsultant/unveiling-algobulls-a-beginners-guide-to-algorithmic-trading-in-india-44d | trading | Algobulls positions itself as a comprehensive platform catering to the growing interest in algorithmic trading (algo trading) within India. This article equips you with the fundamental knowledge of Algobulls, exploring its features and potential benefits for those venturing into the world of automated trading strategies.
Demystifying Algorithmic Trading:
Traditional trading involves manually analyzing markets and placing orders based on your judgment. Algorithmic trading, on the other hand, leverages pre-defined rules and strategies encoded in computer programs called algorithms. These algorithms can analyze vast amounts of data, identify trading opportunities in stocks, options, and futures markets, and execute trades automatically based on your set parameters.
[The Beginner Programming Guide For Ninja Trader 8: The First Book For Ninja Trader 8 Programming](https://www.amazon.com/dp/B0CLKZK91R)
What is Algobulls?
Algobulls strives to be a one-stop shop for algo trading in India. It offers a feature-rich platform designed to cater to users with varying levels of experience:
- Algorithmic Marketplace (Phoenix & Odyssey): This marketplace is the heart of Algobulls. It allows users to:
1. - Browse and Copy Strategies: Explore a vast library of pre-built algorithmic strategies created by other users. You can filter and analyze these strategies based on various criteria and choose to copy them automatically, replicating their trades in your own account.
2. - Deploy Your Own Strategies: For experienced users, Algobulls allows building and deploying their own custom algorithms. This provides maximum control and flexibility for crafting complex trading strategies.
- Visual Strategy Builder: Algobulls offers a visual strategy builder tool. This drag-and-drop interface allows users to construct algorithmic strategies without needing to write code. This can be particularly beneficial for beginners who are unfamiliar with coding languages.
- Analytics and Backtesting: The platform provides tools to analyze the performance of your deployed strategies. You can backtest them on historical market data to assess their potential effectiveness before risking real capital.
- Community and Education: Algobulls fosters a community of algo traders through forums and educational resources. This allows users to learn from each other, share experiences, and stay updated on the latest trends in algo trading.
Benefits of Using Algobulls:
- Accessibility for Beginners: The Algobulls marketplace with pre-built strategies and the visual builder tool lower the barrier to entry for beginners. You can explore algo trading without needing advanced coding skills.
- Flexibility for Experienced Traders: The ability to deploy custom algorithms caters to experienced users who can design complex strategies tailored to their specific needs.
- Community and Support: The built-in community and educational resources can be valuable assets for learning and improving your algo trading skills.
Things to Consider Before Using Algobulls:
- Market Knowledge: Despite its user-friendly features, a solid understanding of financial markets and trading concepts remains crucial. You need to be able to evaluate the logic behind pre-built strategies or effectively build your own.
- Risk Management: Algo trading inherently involves risks. Algobulls offers tools to manage risk, but it's your responsibility to implement a robust risk management strategy.
- Fees and Commissions: Be aware of any fees associated with using the Algobulls platform and the brokerage you connect it to. These fees can impact your overall trading profitability.
Conclusion:
Algobulls offers a compelling platform for Indian traders interested in exploring algo trading. Its marketplace, visual strategy builder, and community features provide a well-rounded solution for beginners and experienced users alike. However, remember that algo trading requires market knowledge, risk management strategies, and realistic expectations. Use Algobulls as a tool to enhance your trading strategies, not a shortcut to guaranteed success.
| epakconsultant |
1,920,439 | Algorithmic Trading in India: Unveiling the Differences Between Algofox, Algoji, and Algobulls | The world of algorithmic trading (algo trading) has captured the interest of Indian investors. Three... | 0 | 2024-07-12T03:51:33 | https://dev.to/epakconsultant/algorithmic-trading-in-india-unveiling-the-differences-between-algofox-algoji-and-algobulls-1n83 | trading | The world of algorithmic trading (algo trading) has captured the interest of Indian investors. Three prominent platforms - Algofox, Algoji, and Algobulls - cater to this growing demand. While they all address algo trading, they cater to different user preferences and experience levels. Let's delve into their key distinctions to help you choose the platform that best suits your needs.
Core Functionality:
At their core, all three platforms aim to empower users to develop and deploy algorithmic trading strategies. They provide tools for:
- Strategy Creation: Build or code your own custom algorithms (Algofox, Algoji) or utilize pre-built strategies (all platforms).
- Backtesting: Test your strategies on historical data to assess their potential performance before risking real capital.
- Automation: Automate trade execution based on your pre-defined rules within the algorithms.
Approaches to Strategy Creation:
- Algofox: Offers flexibility, allowing users to code their own algorithms or leverage pre-built logic blocks.
- Algoji: Caters to both coding-savvy users (custom algorithms) and beginners (pre-built strategies). It also integrates with TradingView, allowing strategy development within that familiar platform.
- Algobulls: Provides a unique approach. Their Algorithmic Marketplace allows browsing and copying pre-built strategies from other users. Additionally, they offer a visual strategy builder for creating strategies without coding.
[From Novice to Expert: Mastering Futures Trading on Ninjatrader Platform](https://www.amazon.com/dp/B0CR6QDLM4)
Focus and Target Audience:
- Algofox: Leans towards a more technical user base with its emphasis on custom algorithm development.
- Algoji: Strikes a balance between coders and beginners by offering both approaches. Their TradingView integration might appeal to chartists familiar with that platform.
- Algobulls: Appears to target a broader audience with its strong focus on the Algorithmic Marketplace for pre-built strategies and the visual builder tool, making it beginner-friendly.
Additional Features:
- Algofox: Offers a social trading aspect, but it's not as prominent as the strategy-building features.
- Algoji: Emphasizes backtesting with its integration and focus on historical data analysis.
- Algobulls: Fosters a community through forums and educational resources, promoting knowledge sharing and learning within the platform.
Considerations When Choosing a Platform:
- Technical Expertise: If you're comfortable with coding, Algofox or Algoji's custom development options might be appealing. If you're a beginner, Algobulls' marketplace and visual builder offer a more accessible entry point.
- Trading Style: Consider your trading style. Algofox and Algoji cater well to active strategy development and customization. Algobulls might be suitable if you prefer to leverage pre-built strategies or are still developing your trading knowledge.
- Community and Support: All platforms offer some level of support. Algobulls stands out with its dedicated community features, which can be valuable for learning and interacting with other algo traders.
Conclusion:
Algofox, Algoji, and Algobulls represent the growing landscape of algo trading platforms in India. Each offers distinct advantages. Algofox empowers coders, Algoji provides a balance, and Algobulls shines for beginners. Carefully evaluate your technical skills, preferred trading style, and desired level of community support to pick the platform that aligns best with your algo trading aspirations. Remember, successful algo trading requires not just the right platform, but also market knowledge, sound risk management, and realistic expectations.
| epakconsultant |
1,920,441 | Solving the Pass The Pillow Problem in C# With 2 Easy Algorithms | Are you familiar with the Pass the Pillow game? It's a fun activity where a pillow is passed along a... | 0 | 2024-07-12T03:53:57 | https://dev.to/rk042/solving-the-pass-the-pillow-problem-in-c-with-2-easy-algorithms-4n9k | programming, interview, career, algorithms | Are you familiar with the Pass the Pillow game? It's a fun activity where a pillow is passed along a line of people, and we're here to solve it using C#! This article explores two efficient methods: simulating the passing sequence and using a mathematical approach. Whether you're preparing for an interview or just curious, dive into our detailed explanations and examples.
## Understanding the Pass the Pillow Problem
Imagine a line of n people, starting with the first person holding a pillow. Every second, the pillow moves to the next person. When it reaches the end, it reverses direction. Given n and time (seconds), our goal is to determine who holds the pillow after that time.
 image by wikipedia
Don't miss out—explore these tips before your interview!
[Solving the Pass The Pillow Problem in C# With 2 Easy Algorithms](https://interviewspreparation.com/solve-pass-the-pillow-problem-in-csharp/)
[Find the largest sum subarray using Kadanes Algorithm](https://interviewspreparation.com/finding-the-largest-sum-subarray-using-kadanes-algorithm/)
[Mastering Object-Oriented Programming in C++](https://interviewspreparation.com/understanding-object-oriented-programming-oop-in-cpp/)
[Palindrome Partitioning A Comprehensive Guide](https://interviewspreparation.com/palindrome-partitioning-a-comprehensive-guide/)
[what is parameter in coding and what is the deference between param and argument in programming] (https://interviewspreparation.com/what-is-a-parameter-in-programming/)
[how to inverse a matrix in c#](https://interviewspreparation.com/how-to-inverse-a-matrix-in-csharp/)
## Simulation Approach
In the simulation approach, we use a straightforward method involving a loop. Starting with the first person, we simulate each second's movement and handle direction changes at the line's ends. This method is effective for understanding the sequential passing and is suitable for practical applications.
```
public class Solution {
public int PassThePillow(int n, int time) {
int index = 1; // Initial position
int direction = 1; // 1 means forward, -1 means backward
for (int t = 0; t < time; t++) {
index += direction;
if (index == n || index == 1) {
direction *= -1; // Change direction
}
}
return index;
}
}
```
## Mathematical Approach
For those with a knack for numbers, the mathematical approach offers a streamlined solution. By leveraging arithmetic operations, we compute the pillow's position without iterating through each second. This approach showcases efficiency and is ideal for advanced interview scenarios where optimization and mathematical thinking are valued.
```
public class Solution {
public int PassThePillow(int n, int time) {
int count = time % (n - 1);
int rest = time / (n - 1);
if (rest % 2 == 0) {
return count + 1;
} else {
return n - count;
}
}
}
```
## Summarizing the Pillow Passing Solutions
In summary, the "Pass the Pillow Game" problem can be tackled using either a simulation approach or a mathematical approach in C#. The simulation approach involves iterating through each second, while the mathematical approach uses arithmetic to directly compute the result. Both methods are efficient given the constraints and provide a clear understanding of the problem-solving techniques in C#.
By understanding and implementing these solutions, you can confidently approach similar problems in C# programming interviews.
| rk042 |
1,920,442 | How to Build a Frontend for Excel (Fast & Easy) | How to Build a Frontend for Excel: A Step-by-Step Guide This guide will walk you through the process... | 0 | 2024-07-12T03:54:07 | https://five.co/blog/how-to-build-a-frontend-for-excel/ | tutorial, database, beginners, development | <!-- wp:heading -->
<h2 class="wp-block-heading">How to Build a Frontend for Excel: A Step-by-Step Guide</h2>
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<p>This guide will walk you through the process of creating a frontend for your Excel spreadsheets using Five’s application development environment. No prior coding experience is required!</p>
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<p>If you have lots of data in Excel that you want to make more interactive and user-friendly? This tutorial is perfect for you. We'll show you how to build a frontend for your Excel data in just a few simple steps using Five.</p>
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<h2 class="wp-block-heading" id="convert-your-spreadsheet-into-a-beautiful-web-app">How to Build an Excel Frontend Faster</h2>
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<p>This blog post is part 1 of a 5-part series on converting your Excel spreadsheet to a frontend. To view the other parts, follow the links here:</p>
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<ul><!-- wp:list-item -->
<li><a href="https://five.co/blog/add-a-calculation-to-your-web-app/" target="_blank" rel="noreferrer noopener">Part 2: How to Build an Excel Frontend – Calculating a Field</a></li>
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<li><a href="https://five.co/blog/make-your-application-look-good-themes/" target="_blank" rel="noreferrer noopener">Part 3: How to Build an Excel <a href="https://five.co/blog/add-a-calculation-to-your-web-app/" target="_blank" rel="noreferrer noopener">Frontend</a> – Adding a Theme</a></li>
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<li><a href="https://five.co/blog/how-to-make-a-multiuser-app-in-2-steps/" target="_blank" rel="noreferrer noopener">Part 4: How to Build an Excel <a href="https://five.co/blog/add-a-calculation-to-your-web-app/" target="_blank" rel="noreferrer noopener">Frontend</a> – Adding Logins to Your App</a></li>
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<li><a href="https://five.co/blog/charts-dashboards/">Part 5: How to Build an Excel Frontend – Creating Charts and Dashboards</a></li>
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<h2 class="wp-block-heading">Step 1: Organizing Your Excel Spreadsheet</h2>
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<p>Creating an effective Excel frontend starts with a well-structured and organized spreadsheet. Follow these steps to ensure your data is prepared for building a user-friendly interface.</p>
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<p><strong>1. Use Clear and Descriptive Headers</strong></p>
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<p>Begin by labeling each column in the first row with clear and descriptive headers. This makes it easy to understand what each column represents. For example, if your spreadsheet tracks inventory, your headers might look like this:</p>
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<figure class="wp-block-table"><table><thead><tr><th>Product</th><th>Price</th><th>Quantity</th></tr></thead><tbody><tr><td>Product 1</td><td>4.99</td><td>100</td></tr><tr><td>Product 2</td><td>5.99</td><td>4</td></tr><tr><td>Product 3</td><td>100.99</td><td>58</td></tr></tbody></table></figure>
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<p><strong>2. Eliminate Redundancy</strong></p>
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<p>Avoid having multiple columns for similar information. Instead of creating separate columns for perishable and non-perishable products, use a single "Product" column and add another column for classification:</p>
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<figure class="wp-block-table"><table><thead><tr><th>Product</th><th>Price</th><th>Quantity</th><th>Type</th></tr></thead><tbody><tr><td>Product 1</td><td>4.99</td><td>100</td><td>Non-Perishable</td></tr><tr><td>Product 2</td><td>5.99</td><td>4</td><td>Perishable</td></tr><tr><td>Product 3</td><td>100.99</td><td>58</td><td>Non-Perishable</td></tr></tbody></table></figure>
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<p><strong>3. Single Data Entries per Cell</strong></p>
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<p>Ensure that each cell contains only one piece of data. Combining multiple pieces of information in one cell can make data processing and analysis more difficult. For example, if you have pricing and discount information, separate them into different columns:</p>
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<figure class="wp-block-table"><table><thead><tr><th>Product</th><th>Price</th><th>Discounted Price</th></tr></thead><tbody><tr><td>Product 1</td><td>5.99</td><td>4.99</td></tr><tr><td>Product 2</td><td>7.99</td><td>6.99</td></tr></tbody></table></figure>
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<p><strong>4. Separate Multiple Values</strong></p>
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<p>If you have multiple pieces of the same type of data, such as multiple contact numbers, use separate columns for each:</p>
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<figure class="wp-block-table"><table><thead><tr><th>Customer</th><th>Primary Email</th><th>Secondary Email</th></tr></thead><tbody><tr><td>John Doe</td><td>john@example.com</td><td>john.doe@example.com</td></tr><tr><td>Jane Smith</td><td>jane@example.com</td><td>jane.smith@example.com</td></tr></tbody></table></figure>
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<p>By organizing your spreadsheet in this way, you create a solid foundation for building a functional and efficient Excel frontend.</p>
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<h3 class="wp-block-heading">Essential Excel Commands for Cleaning Data</h3>
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<p>To ensure your data is clean and ready for use, make use of these Excel functions:</p>
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<p><strong>1. TRIM Function</strong></p>
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<p>The TRIM function removes unnecessary spaces from text entries, making sure names and other text data are consistently formatted. For example:</p>
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<ul><!-- wp:list-item -->
<li>Before: <code>" JohnDoe "</code></li>
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<li>After: <code>"John Doe"</code></li>
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<p><strong>2. CLEAN Function</strong></p>
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<p>The CLEAN function removes non-printable characters from your text. This is particularly useful for data imported from other sources that may contain hidden characters:</p>
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<ul><!-- wp:list-item -->
<li>Before: <code>"John\x00Doe"</code></li>
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<li>After: <code>"JohnDoe"</code></li>
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<p><strong>3. PROPER Function</strong></p>
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<p>The PROPER function capitalizes the first letter of each word and converts the rest to lowercase, standardizing names and titles:</p>
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<ul><!-- wp:list-item -->
<li>Before: <code>"JOHN DOE"</code></li>
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<li>After: <code>"John Doe"</code></li>
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<h3 class="wp-block-heading">Preparing Your Spreadsheet: A Checklist</h3>
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<!-- wp:paragraph -->
<p>Before moving on to creating the frontend, ensure your spreadsheet meets the following criteria:</p>
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<ul><!-- wp:list-item -->
<li><strong>Descriptive Headers:</strong> Each column has a clear and descriptive header.</li>
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<li><strong>Unique Information:</strong> Each column contains unique and relevant information.</li>
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<li><strong>Single Data Entries:</strong> Each cell contains only one piece of data.</li>
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<li><strong>Separated Data Points:</strong> Multiple values of the same type are split into different columns.</li>
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<li><strong>Clean Data:</strong> Data has been cleaned using Excel’s TRIM, CLEAN, and PROPER functions.</li>
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<p>By following these steps, your Excel spreadsheet will be well-prepared for the next phase of building an intuitive and effective frontend interface.</p>
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<p>After organizing your spreadsheet, the next step in creating an Excel frontend involves setting up your database. Using a database as the backend is essential for managing and manipulating your data effectively. Here’s how to get started with MySQL, a widely used open-source database, and Five, which provides a user-friendly visual database designer.</p>
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<h2 class="wp-block-heading">Step 2: Setting Up Your Database</h2>
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<p><strong>Create a New Application in Five</strong></p>
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<p>Begin by signing up for a <a href="https://five.co/get-started/">free trial of Five</a>, a platform that simplifies application development.</p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>After signing up, you will be greeted with a welcome screen.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3279,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Landing-Page-1024x649-2.png" alt="" class="wp-image-3279"/></figure>
<!-- /wp:image -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Navigate to the "Applications" section, located near the top left corner of the screen.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Click on the yellow Plus icon to create a new application.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>In the "New Applications Record" window, give your application a title, such as “Excel Frontend”.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3280,"sizeSlug":"large","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-large"><img src="https://five.co/wp-content/uploads/2024/07/Screenshot-2024-06-28-at-4.09.06-pm-1024x518.png" alt="" class="wp-image-3280"/></figure>
<!-- /wp:image -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Save your application by clicking the Tick Mark in the top right corner.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:heading -->
<h2 class="wp-block-heading">Step 3: Import Your Data</h2>
<!-- /wp:heading -->
<!-- wp:paragraph -->
<p>Once your application is created, it’s time to set up your database tables.</p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Click the blue Manage button located at the top right of the screen near the Five logo.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3281,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Excel-to-Web-App-Manage-1-1024x646-3.png" alt="" class="wp-image-3281"/></figure>
<!-- /wp:image -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Navigate to "Data" and select "Table Wizard" to start creating your first database table.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Name your table "Inventory".</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3282,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Table-Wizard-1024x649-3.png" alt="" class="wp-image-3282"/></figure>
<!-- /wp:image -->
<!-- wp:paragraph -->
<p><strong>Add Database Fields</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Click the Plus icon to add database fields.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Create four fields with the following specifications:</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Field 1:</strong> Name it Product, select text as the data type, and set the size to 100.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Field 2:</strong> Name it Price, select float as the data type, and float.2 as the display type.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Field 3:</strong> Name it Quantity, select integer for both data and display type.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Field 4:</strong> Name it Total, which will be used for calculations later.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Save your table by clicking the Tick mark, ensuring the structure matches the setup before saving.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3283,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Excel-to-Web-App-Database-Fields-1024x626-1-1-1-1.png" alt="" class="wp-image-3283"/></figure>
<!-- /wp:image -->
<!-- wp:paragraph -->
<p><strong>Import Data from Excel</strong></p>
<!-- /wp:paragraph -->
<!-- wp:paragraph -->
<p>To populate your database, you’ll need to import your data from a CSV file.</p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Navigate to Data > Tables.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Click the Import CSV into Table icon, located to the left of the yellow plus icon.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3284,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Data-Import-1024x650-3.png" alt="" class="wp-image-3284"/></figure>
<!-- /wp:image -->
<!-- wp:paragraph -->
<p><strong>Prepare Your CSV File</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Ensure your data is stored in a CSV file. If using provided data, <a href="https://five.co/download/source/Inventory.csv">download the Inventory CSV file.</a></li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p><strong>Import Data into Your Database</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Select the Inventory table from the dropdown box.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Click on Choose File and locate the Inventory.csv file to upload it.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Five will automatically map the CSV fields to the corresponding database fields if they match.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>For InventoryKey, select Generated to let Five create a unique primary key for each record.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>For Total, select Not Imported from the dropdown box.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li>Click the Tick mark to complete the upload process.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3285,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Excel-to-Web-App-CSV-Import-1024x646-1.png" alt="" class="wp-image-3285"/></figure>
<!-- /wp:image -->
<!-- wp:separator -->
<hr class="wp-block-separator has-alpha-channel-opacity"/>
<!-- /wp:separator -->
<!-- wp:heading {"level":3} -->
<h3 class="wp-block-heading">Next Steps: Building Your Excel Frontend</h3>
<!-- /wp:heading -->
<!-- wp:paragraph -->
<p>With your MySQL database table created and populated with data, you now have a solid foundation for building your Excel frontend. This setup ensures that your data is well-structured and easily accessible, allowing you to create a dynamic and interactive interface.</p>
<!-- /wp:paragraph -->
<!-- wp:separator -->
<hr class="wp-block-separator has-alpha-channel-opacity"/>
<!-- /wp:separator -->
<!-- wp:paragraph -->
<p>With your database set up and populated, it's time to add a user-friendly frontend to your Excel application. This step transforms your data into a fully functional frontend. Follow these steps to continue converting your Excel spreadsheet into an interactive frontend.</p>
<!-- /wp:paragraph -->
<!-- wp:heading -->
<h2 class="wp-block-heading">Step 3: Adding a Form</h2>
<!-- /wp:heading -->
<!-- wp:paragraph -->
<p>Creating forms for user interaction is simplified with Five, allowing you to build a frontend without extensive coding.</p>
<!-- /wp:paragraph -->
<!-- wp:paragraph -->
<p><strong>1. Adding a Form</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Click on "Visual" and then select "Form Wizard."</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3286,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Form-Wizard-1024x650-6.png" alt="" class="wp-image-3286"/></figure>
<!-- /wp:image -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>In the Form Wizard, choose "Inventory" as your main table.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3287,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Form-Wizard-Creating-a-form-1024x656-2.png" alt="" class="wp-image-3287"/></figure>
<!-- /wp:image -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Save your form by clicking the Tick mark.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p><strong>2. Preview Your Application</strong></p>
<!-- /wp:paragraph -->
<!-- wp:paragraph -->
<p>Once your form is set up, preview your application to see how it looks and functions.</p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Click the "Run" button located at the top right corner. If the Run button isn’t visible, activate it by clicking on the “Deploy to Development” button in the top right corner. This will launch your web form in a new browser tab.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:image {"align":"center","id":3288,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image aligncenter size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-Excel-to-Web-App-First-Look-at-the-Application-1024x655-3.png" alt="" class="wp-image-3288"/></figure>
<!-- /wp:image -->
<!-- wp:separator -->
<hr class="wp-block-separator has-alpha-channel-opacity"/>
<!-- /wp:separator -->
<!-- wp:heading {"level":3} -->
<h3 class="wp-block-heading">What Your Application Includes</h3>
<!-- /wp:heading -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li><strong>Auto-Generated Front-End:</strong> Your form is created using Five’s Form Wizard.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Menu:</strong> A navigation menu on the left side of the screen.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Search Bar:</strong> A search bar at the top for quick data searches.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Filter Option:</strong> A filter next to the search bar for refining your data view.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Data Management:</strong> The ability to add, edit, or delete records from your database through the frontend.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p>Congratulations! You've created the first prototype of your Excel frontend. This setup provides a solid foundation for further development.</p>
<!-- /wp:paragraph -->
<!-- wp:separator -->
<hr class="wp-block-separator has-alpha-channel-opacity"/>
<!-- /wp:separator -->
<!-- wp:heading {"level":3} -->
<h3 class="wp-block-heading">Next Steps: Enhancing Your Excel Frontend</h3>
<!-- /wp:heading -->
<!-- wp:paragraph -->
<p>Transitioning from Excel to a modern web application allows for more efficient data management. Here are the next steps to further develop and customize your frontend.</p>
<!-- /wp:paragraph -->
<!-- wp:paragraph -->
<p>The possibilities in Five are extensive! Here’s a preview of what your Excel frontend could look like:</p>
<!-- /wp:paragraph -->
<!-- wp:image {"id":3289,"sizeSlug":"full","linkDestination":"none"} -->
<figure class="wp-block-image size-full"><img src="https://five.co/wp-content/uploads/2024/07/Five.Co-SQL-Dashboard-2-1024x576-1.png" alt="" class="wp-image-3289"/></figure>
<!-- /wp:image -->
<!-- wp:paragraph -->
<p><strong>Further Customization Options</strong></p>
<!-- /wp:paragraph -->
<!-- wp:paragraph -->
<p><strong>Add Calculations</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li><a href="https://five.co/blog/add-a-calculation-to-your-web-app/">Learn how to add calculations to your application</a>, such as calculating the "Total" field in your form.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p><strong>Customize Your App Design</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Enhance the look and feel of your web app <a href="https://five.co/blog/make-your-application-look-good-themes/">by adding a theme</a>, giving your application a professional and unique appearance.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p><strong>Implement User Authentication</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Add a login screen and terms & conditions consent screen to your application. <a href="https://five.co/blog/how-to-make-a-multiuser-app-in-2-steps/">Assign different roles and permissions to users for controlled access to data.</a></li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p><strong>Analytics and Business Intelligence</strong></p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li>Incorporate <a href="https://five.co/blog/charts-dashboards/">charts and dashboards </a>to allow users to perform analytics and provide business intelligence insights.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:separator -->
<hr class="wp-block-separator has-alpha-channel-opacity"/>
<!-- /wp:separator -->
<!-- wp:heading {"level":3} -->
<h3 class="wp-block-heading">Explore More Possibilities</h3>
<!-- /wp:heading -->
<!-- wp:paragraph -->
<p>Five offers extensive customization options to expand your application's capabilities. For further inspiration and detailed tutorials, explore Five’s resources:</p>
<!-- /wp:paragraph -->
<!-- wp:list -->
<ul><!-- wp:list-item -->
<li><strong>User Community:</strong> Visit <a href="https://five.org">Five’s User Community</a> to ask questions or get inspiration from other users.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Documentation:</strong> Access Five’s comprehensive documentation at <a href="https://help.five.org">help.five.org</a>.</li>
<!-- /wp:list-item --></ul>
<!-- /wp:list -->
<!-- wp:paragraph -->
<p>By following these steps and utilizing Five’s resources, you can continue to build and enhance your Excel frontend, turning your data management processes into a user-friendly web application.</p>
<!-- /wp:paragraph --> | domfive |
1,920,443 | Quine: Self replicating computer programs | A Quine, (/kwi:n/ pronounced Kwine) is a self-replicating computer program, a digital life if you... | 28,040 | 2024-07-12T04:14:29 | https://darshan.hashnode.dev/quine | quine, dna, selfrep, python | A _[Quine](https://dev.to/darshan-as/quine-self-replicating-computer-programs-1c5g)_, (/_kwi:n_/ pronounced Kwine) is a self-replicating computer program, a digital life if you will. It takes no input and prints a copy of its own source code.
This may sound impossible, trivial, or completely uninteresting, depending on your temper and your knowledge of computer science. Trust me, it is not only not impossible, by the end of this post you'll have written your first Quine in Python.
The name "Quine" was coined by [Douglas Hofstadter](https://en.wikipedia.org/wiki/Douglas_Hofstadter), in his popular science book _[Gödel, Escher, Bach](https://en.wikipedia.org/wiki/G%C3%B6del,_Escher,_Bach)_, in honour of the philosopher [Willard Van Orman Quine](https://en.wikipedia.org/wiki/Willard_Van_Orman_Quine) (1908-2000), who made an extensive study of indirect self-reference, and in particular for the following paradox-producing expression, known as Quine's paradox:
> "Yields falsehood when preceded by its quotation" yields falsehood when preceded by its quotation.
The easiest way to write a Quine, of course, is to read the source file on the disk and print its contents. That may be done, but it is considered cheating; besides, the program might not know where the source file is, it may have access to only the compiled data, or the programming language may simply forbid that sort of operation.
---
## Your first Quine
Before we start,
> "If you have never done this, I urge you to try it on your own. The discovery of how to do it is a revelation that far surpasses any benefit obtained by being told how to do it."
> – Ken Thompson
That said, below is a step-by-step guide to writing your first Quine in Python:
Let's start with 2 pieces in our program.
- A variable to hold the string representation of the source code; call this the _Data_ part.
- A print statement to output the variable; call this the _Code_ part.
If we are to take an analogy with cellular biology (thanks to Douglas Hofstadter, again), think of a Quine as a cell with its own DNA. What I have called the _data_ would be the DNA, and the _code_ would be the rest of the cell. The cell is able to create a new cell using the DNA, and this involves, among other things, replicating the DNA itself. So the DNA (the data) contains all the necessary information for the replication, but without the cell (the code), or at least some other code to make the data live, it is a useless, inert, piece of data.
#### Step 1
Let's have a variable to store the _data_ part. And since we don't know the final source code yet, let's use `???` as a placeholder. Print statements will read the `data` to replicate itself, thereby acting as the _code_ part.
#
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/PyWxJFHBVkHJ3t5eiaugKDOvRAMkpPn/PwA)
```python
data = "???"
print(data)
```
Output:
```python
# Output
???
```
Not quite what we're looking for, is it?
#### Step 2
We can't just print the contents of the `data` variable. We need to print the very act of declaring the variable itself. Let's add another `print` statement to do just that.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/PyWxJFHBVkHJ3t5eiaugKDOvREMdIqauowBiaForQITBnP//AQ)
```python
data = "???"
print('data =', data); print(data)
```
Output:
```python
data = ???
???
```
Sweet. It's starting to look structurally similar. But we still have those pesky `???` marks.
#### Step 3
Notice that the second line of output is `???`, which corresponds to the part of the source code we initially didn't know how to fill. This means, we can replace `???` to whatever the second line of source code becomes.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/PyWxJFHBVkGpoCgzr0RDHcJV11EAMTStFSDCYI4SF2E1//8DAA)
```python
data = "print('data =', data); print(data)"
print('data =', data); print(data)
```
Output:
```python
data = print('data =', data); print(data)
print('data =', data); print(data)
```
Almost there! But we seem to be missing the double quotes in line 1.
#### Step 4
In Python
- `str('hi')` outputs `hi`
- `repr('hi')` outputs `"hi"`, with quotes!
That's exactly what we need. Let's wrap `data` in the second line with `repr` to get those quotes.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/PyWxJFHBVkGpoCgzr0RDHcJV11EAMTStFSDCYI4SF7qaotSCIogcqsr//wE)
```python
data = "print('data =', data); print(data)"
print('data =', repr(data)); print(data)
```
Output:
```python
data = "print('data =', data); print(data)"
print('data =', data); print(data)
```
Yay! Line 1 in the source and output are an exact match.
But in doing so, we altered line 2 of the source!
#### Step 5
We can fix this by setting the value of the `data` variable to the updated _code_ part.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/PyWxJFHBVkGpoCgzr0RDHcJV11EoSi0o0gDxNDWtFSCSYJ4SF7Eq//8HAA)
```python
data = "print('data =', repr(data)); print(data)"
print('data =', repr(data)); print(data)
```
Output:
```python
data = "print('data =', repr(data)); print(data)"
print('data =', repr(data)); print(data)
```
Viola! There you have it. A valid Quine!
---
Although I've picked Python here, it's purely due to personal familiarity and brevity, there's nothing special about it. Quines are a general consequence of the so-called [Kleene's Fixed-Point theorem](https://en.wikipedia.org/wiki/Kleene%27s_recursion_theorem), which essentially means that a Quine (in fact, infinitely many) can be written in any Turing-complete programming language.
Almost all programming languages you've heard or used so far are Turing complete.
No, not HTML and CSS, they are not programming languages, let alone Turing-complete. Get over it.
One word of warning: this code/data distinction in Quines is pleasant and often helpful. It is not, however, completely valid in all circumstances
---
## Shortest Quine
In 1983, [Ken Thompson](https://en.wikipedia.org/wiki/Ken_Thompson) in his Turing Award acceptance speech, [Reflections on Trusting Trust](https://fermatslibrary.com/s/reflections-on-trusting-trust), presented the persistent compiler backdoor attack now known as the _Thompson hack_ or _Trusting trust attack_.
Although the paper itself is widely considered a seminal computer security work in its own right, he also made a peculiar statement about Quines.
>”In college, before video games, we would amuse ourselves by posing programming exercises. One of the favorites was to write the shortest self-reproducing program. Since this is an exercise divorced from reality, the usual vehicle was FORTRAN. Actually, FORTRAN was the language of choice for the same reason that three-legged races are popular.“
>– Ken Thompson
I claim no knowledge whatsoever of FORTRAN. So, here's the shortest Quine in Python:
Python: [Try it online!](https://tio.run/##K6gsycjPM/7/P95WPd5Wtci6oCgzr0QjXlU1XlMdzonX/P8fAA)
```python
_='_=%r;print(_%%_)';print(_%_)
```
Looks esoteric, doesn't it? But don't let the compactness fool you. Let's decipher how we could have arrived at the shortest one ourselves.
#### Step 1
Let's start with
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/P0XBVkHd3t5enaugKDOvRCNF8/9/AA)
```Python
d = '???'
print(d)
```
Output:
```Python
???
```
#### Step 2
Let's add the entire source code from previous step into `d`.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/P0XBVkEdRNjb28fkFRRl5pVopGiqc8FY//8DAA)
```Python
d = 'd = ???\nprint(d)'
print(d)
```
Output:
```Python
d = ???
print(d)
```
If you noticed the output. We just want to replace `???` with the exact value of variable `d` and we are done!
#### Step 3
There's a nifty trick in Python to do this. The `str(d)` and `repr(d)` have a shortcut symbol of `%s` and `%r` respectively, and can be used like below:
```Python
print('Bruce Wayne is %s' % 'Batman') # outputs: Bruce Wayne is Batman
print('Bruce Wayne is %r' % 'Batman') # outputs: Bruce Wayne is 'Batman'
```
Using that, replace `???` with `%r` and substitute `d` onto itself in line 2.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/P0XBVkEdRKgWxeQVFGXmlWikaKpzQVkKqgopmv//AwA)
```Python
d = 'd = %r\nprint(d)'
print(d % d)
```
Output:
```Python
d = 'd = %r\nprint(d)'
print(d)
```
So close! We are just missing the `% d` in the second line.
#### Step 4
Let's add that `% d` in line 1 of the source.
But hold on `% d` would make Python look for a second value to be replaced.
To tell Python not to, we have to escape the `%` symbol. This can be done by adding another `%` in front.
Python Input: [Try it online!](https://tio.run/##K6gsycjPM/7/P0XBVkEdRKgWxeQVFGXmlWikKKiqKqRoqnPBuUDe//8A)
```Python
d = 'd = %r\nprint(d %% d)'
print(d % d)
```
Output:
```Python
d = 'd = %r\nprint(d %% d)'
print(d % d)
```
This is a valid Quine!
#### Step 5
Now, to make it short. Let's get rid of the newline character and combine both lines using `;`
```Python
d = 'd = %r;print(d %% d)';print(d % d)
```
Variables can start with underscores. A single underscore is in and of itself a valid variable. Let's replace `d` with `_`
```Python
_ = '_ = %r;print(_ %% _)';print(_ % _)
```
Get rid of all the spaces.
Python: [Try it online!](https://tio.run/##K6gsycjPM/7/P95WPd5Wtci6oCgzr0QjXlU1XlMdzonX/P8fAA)
```Python
_='_=%r;print(_%%_)';print(_%_)
```
There you have it. The shortest Quine.
---
Here's an interesting one: An Error-Quine in Python. The source code is an error-like text that throws the exact error when executed.
The only difference being the output now goes to _stderr_ instead of _stdout_.
Python: [Try it online!](https://tio.run/##K6gsycjPM/7/X0HBLTMnVUEpOT8lVa8kM19JRyEnMy9VwZBLQQG/XByXZ15Kal5JIlAmz7WoKL/ISqE0L7WiIDW5JDVFIRMs@f8/AA)
```python
File "quine.py", line 1
File "quine.py", line 1
^
IndentationError: unexpected indent
```
---
## Some more Quines
Ruby: [Try it online!](https://tio.run/##KypNqvz/v9hWqdhWtcC6oLSkWKFYVbVYCcYs5vr/HwA)
```Ruby
s="s=%p;puts s%%s";puts s%s
```
Lua: [Try it online!](https://tio.run/##yylN/P@/2Fap2Fa1sKAoM69Eo9gqLb8oNxHI0NRUwhTi@v8fAA)
```Lua
s="s=%qprint(s:format(s))"print(s:format(s))
```
Perl 5: [Try it online!](https://tio.run/##K0gtyjH9/1@l2LZQA0yoFmtaFxRl5pWkAfk6KkAeOp/r/38A)
```Perl
$s=q($s=q(%s);printf($s,$s););printf($s,$s);
```
JavaScript: [Try it online!](https://tio.run/##y0osSyxOLsosKNHNy09J/f@/2Fap2FY1yzo5P684PydVLyc/XaNYp1hTCUOE6/9/AA)
```JavaScript
s="s=%j;console.log(s,s)";console.log(s,s)
```
C: [Try it online!](https://tio.run/##S9ZNT07@/z83MTNPo1izuqAoM68kTaPYVglDRDVZtVjVUCVZx9hEp1jTulYJxvj/HwA)
```C
main(s){printf(s="main(s){printf(s=%c%s%1$c,34,s);}",34,s);}
```
Java: [Try it online!](https://tio.run/##y0osS9TNSsn@/z85J7G4WCGwuqA0KSczWaG4JLEESJXlZ6Yo5CZm5mkElxRl5qVHxyZqVkOYCsW2SuRoUk1WLVY1VEm2Dq4sLknN1csvLdErAMqVpGkU6xib6BRrWtfWKuGV5fr/HwA)
```Java
class Q{public static void main(String[]a){String s="class Q{public static void main(String[]a){String s=%c%s%1$c;System.out.printf(s,34,s);}}";System.out.printf(s,34,s);}}
```
Rust: [Try it online!](https://tio.run/##KyotLvn/Py1PITcxM09Ds7qgKDOvRFFDCSECE6o2sLKv1QGTmrW1SjqElWjW/v8PAA)
```Rust
fn main(){print!("fn main(){{print!({0:?},{0:?})}}","fn main(){{print!({0:?},{0:?})}}")}
```
HQ9+: [Try pasting it Online](https://hci.mkps.app/)
[Wiki page of HQ9+ language](https://esolangs.org/wiki/HQ9%2B)
```HQ9+
q
```
Quines are a fascinating topic and an art in their own right.
We'll go more in-depth and explore topics like **Intron**, **QuineRelay**, **MultiQuine**, and much more in the follow-up posts.
Stay tuned!
---
Sources and references:
- [Quine (computing)](https://en.wikipedia.org/wiki/Quine_(computing)), wiki page.
- [Quine: Self replicating computer programs](https://dev.to/darshan-as/quine-self-replicating-computer-programs-1c5g), self-referencing blog.
- [Self-replicating Python code | Quine](https://www.youtube.com/watch?v=a-zEbokJAgY), Youtube video by Lex Fridman.
- [Reflections on Trusting Trust](https://www.cs.cmu.edu/~rdriley/487/papers/Thompson_1984_ReflectionsonTrustingTrust.pdf), paper by Ken Thompson.
- [Gödel, Escher, Bach: An Eternal Golden Braid](https://www.goodreads.com/book/show/24113.G_del_Escher_Bach), book by Douglas R. Hofstadter.
- [Quines (self-replicating programs)](http://www.madore.org/~david/computers/quine.html), blog by David Madore.
- [The Quine Page](https://www.nyx.net/~gthompso/quine.htm), blog by Gary P. Thompson II.
- [Quine Programs](https://cs.lmu.edu/~ray/notes/quineprograms/), blog by Ray Toal.
| darshan-as |
1,920,446 | [Unity] Publish assets that automatically organizes folders. | I created an asset that automatically organizes folders in Unity. I would like to release it to you... | 0 | 2024-07-12T04:01:04 | https://dev.to/uni928/unity-asset-that-automatically-organizes-folders-is-released-for-free-31ff | unity3d, asset, auto, free | I created an asset that automatically organizes folders in Unity.
I would like to release it to you in the hope that it will be useful to you.
Please download ver1.1.4 (latest version) from the following site.
https://drive.google.com/file/d/1EuwCiYTttfgwJ6yMBZW2p-GcQmuzC728/view?usp=sharing
***
This asset automatically organizes Unity folders.
After importing this asset,
place the files and folders you want to sort into a specific folder, and run it from the menu bar at the top of Unity.
The rest will be sorted automatically.
If you are not confident in organizing folders or are looking at projects created by others,
using this may make management and viewing easier.
After sorting with this function,
as development progresses,
folders will likely become messy.
Therefore, we recommend re-sorting periodically.
Since this function only checks the dependencies of scene files to see if they are in use,
it will not determine that they are in use if there are no dependencies, such as when they are loaded with Resources.
Therefore, the determination of when they are in use may be quite lenient.
Thank you for your understanding.
***
Folder rules
The folder structure is as follows:
"Prefabs"
"Scripts"
"Animations"
"Materials"
"PhysicsMaterials"
"Fonts"
"Textures"
"Audio"
"Models"
"Shaders"
"Resources"
"Editor"
"Plugins"
"Other"
Create folders and create folders for
"2 or more scenes with dependencies"
"1 scene with dependencies"
"0 scenes with dependencies"
(Of course, the folder names are short English.)
The reason for creating a Project folder is that when assets are introduced, they are placed directly under Asset, making it easier to distinguish between assets and non-assets.
In the "1 scene with dependencies folder", folders with scene names are created and stored.
***
I've left the code here so you can check the contents.
Since there are a lot of files from version 1.1.1 onwards,
this will be an introduction to version 1.1.0.
I apologize for the length of the code.
The hierarchy of the sorting folders must be strictly adhered to, so if you are installing it, I recommend installing it from unitypackage.
```csharp
using System.Collections.Generic;
using UnityEngine;
namespace SephirothTools
{
[UnityEditor.InitializeOnLoad]
public class SephirothOrganizeFolders
{
public const bool isAutoSave = false;
[UnityEditor.MenuItem("Tools/ExecSephirothOrganizeFolders")]
private static void ExecSephirothOrganizeFolders()
{
System.DateTime nowDateTime = System.DateTime.Now;
TakeBackUP(nowDateTime);
List<string> subDirectoryList = GetSubDirectories("Assets/SephirothOrganizeFolders/OrganizeFolders");
subDirectoryList.Add(AssetsToAbsolutePath("Assets/SephirothOrganizeFolders/OrganizeFolders"));
List<string> sceneFilePathList = new();
foreach (string oneDirectorie in subDirectoryList)
{
foreach (string oneFile in System.IO.Directory.GetFiles(AssetsToAbsolutePath(oneDirectorie)))
{
if (oneFile.EndsWith(".unity") && System.IO.File.Exists(oneFile))
{
sceneFilePathList.Add(oneFile.Replace('\\', '/'));
}
}
}
CreateDirectories(sceneFilePathList);
foreach (string oneDirectorie in subDirectoryList)
{
foreach (string oneFile in System.IO.Directory.GetFiles(AssetsToAbsolutePath(oneDirectorie)))
{
string changeOneFile = oneFile.Replace('\\', '/');
if (changeOneFile.Contains("SephirothOrganizeFolders/OrganizeFolders/HowToSephirothOrganizeFolders"))
{
continue;
}
if(System.IO.Path.GetFileName(changeOneFile).StartsWith("."))
{
continue;
}
if (changeOneFile.EndsWith(".meta"))
{
continue;
}
if(changeOneFile.EndsWith(".unity"))
{
continue;
}
string upFolderName = changeOneFile.Substring(0, changeOneFile.LastIndexOf("/"));
upFolderName = upFolderName.Substring(upFolderName.LastIndexOf("/") + 1);
string guid = null;
foreach(string oneLine in System.IO.File.ReadAllText(AssetsToAbsolutePath(changeOneFile + ".meta")).Split('\n'))
{
if(oneLine.StartsWith("guid"))
{
guid = oneLine.Substring(6);
break;
}
}
List<string> findSceneNameList = new();
if (guid != null)
{
foreach (string oneScene in sceneFilePathList)
{
string readText = System.IO.File.ReadAllText(AssetsToAbsolutePath(oneScene));
if (readText.Contains(guid))
{
findSceneNameList.Add(oneScene);
}
}
}
string genreName = null;
if (changeOneFile.Contains("/Resources/"))
{
genreName = "Resources";
}
else if (changeOneFile.Contains("/Editor/"))
{
genreName = "Editor";
}
else if (changeOneFile.Contains("/Plugins/"))
{
genreName = "Plugins";
}
else if (changeOneFile.EndsWith(".cs") || changeOneFile.EndsWith(".js"))
{
genreName = "Scripts";
}
else if (changeOneFile.EndsWith(".prefab"))
{
genreName = "Prefabs";
}
else if (changeOneFile.EndsWith(".anim") || changeOneFile.EndsWith(".controller"))
{
genreName = "Animations";
}
else if (changeOneFile.EndsWith(".mat") || changeOneFile.EndsWith(".material"))
{
genreName = "Materials";
}
else if (changeOneFile.EndsWith(".physicmaterial"))
{
genreName = "PhysicsMaterials";
}
else if (changeOneFile.EndsWith(".ttf") || changeOneFile.EndsWith(".otf") || changeOneFile.EndsWith(".dfont"))
{
genreName = "Fonts";
}
else if (changeOneFile.EndsWith(".fbx") || changeOneFile.EndsWith(".dae") || changeOneFile.EndsWith(".dxf") || changeOneFile.EndsWith(".obj") || changeOneFile.EndsWith(".max") || changeOneFile.EndsWith(".blend"))
{
genreName = "Models";
}
else if (changeOneFile.EndsWith(".shader"))
{
genreName = "Shaders";
}
else if (changeOneFile.EndsWith(".png") || changeOneFile.EndsWith(".bmp") || changeOneFile.EndsWith(".exr") || changeOneFile.EndsWith(".gif") || changeOneFile.EndsWith(".hdr") || changeOneFile.EndsWith("iff") || changeOneFile.EndsWith(".jpeg") || changeOneFile.EndsWith(".jpg") || changeOneFile.EndsWith(".pict") || changeOneFile.EndsWith(".psd") || changeOneFile.EndsWith(".tga") || changeOneFile.EndsWith(".tiff") || changeOneFile.EndsWith(".tif"))
{
genreName = "Textures";
}
else if (changeOneFile.EndsWith(".mp3") || changeOneFile.EndsWith(".ogg") || changeOneFile.EndsWith(".wav") || changeOneFile.EndsWith(".aiff") || changeOneFile.EndsWith(".aif") || changeOneFile.EndsWith(".mod") || changeOneFile.EndsWith(".it") || changeOneFile.EndsWith(".s3m") || changeOneFile.EndsWith(".xm"))
{
genreName = "Audio";
}
else
{
genreName = "Other";
}
if (findSceneNameList.Count == 0)
{
string targetFile1 = AssetsToAbsolutePath("Assets/Projects/" + genreName + "/NoUse" + genreName + "/" + upFolderName + "/" + changeOneFile.Substring(changeOneFile.LastIndexOf("/") + 1) + ".meta");
string targetFile2 = AssetsToAbsolutePath("Assets/Projects/" + genreName + "/NoUse" + genreName + "/" + upFolderName + "/" + changeOneFile.Substring(changeOneFile.LastIndexOf("/") + 1));
{
string[] folderSplit = targetFile1.Split("/");
string nowFolder = folderSplit[0];
for(int i = 1; i < folderSplit.Length - 1; i++)
{
nowFolder += "/" + folderSplit[i];
if(!System.IO.Directory.Exists(nowFolder))
{
System.IO.Directory.CreateDirectory(nowFolder);
}
}
}
if (System.IO.File.Exists(targetFile1))
{
System.IO.File.Delete(targetFile1);
}
System.IO.File.Move(AssetsToAbsolutePath((changeOneFile + ".meta")), targetFile1);
if (System.IO.File.Exists(targetFile2))
{
System.IO.File.Delete(targetFile2);
}
System.IO.File.Move(AssetsToAbsolutePath(changeOneFile), targetFile2);
}
else if(1 < findSceneNameList.Count)
{
string targetFile1 = AssetsToAbsolutePath("Assets/Projects/" + genreName + "/Common" + genreName + "/" + upFolderName + "/" + changeOneFile.Substring(changeOneFile.LastIndexOf("/") + 1) + ".meta");
string targetFile2 = AssetsToAbsolutePath("Assets/Projects/" + genreName + "/Common" + genreName + "/" + upFolderName + "/" + changeOneFile.Substring(changeOneFile.LastIndexOf("/") + 1));
{
string[] folderSplit = targetFile1.Split("/");
string nowFolder = folderSplit[0];
for (int i = 1; i < folderSplit.Length - 1; i++)
{
nowFolder += "/" + folderSplit[i];
if (!System.IO.Directory.Exists(nowFolder))
{
System.IO.Directory.CreateDirectory(nowFolder);
}
}
}
if (System.IO.File.Exists(targetFile1))
{
System.IO.File.Delete(targetFile1);
}
System.IO.File.Move(AssetsToAbsolutePath((changeOneFile + ".meta")), targetFile1);
if (System.IO.File.Exists(targetFile2))
{
System.IO.File.Delete(targetFile2);
}
System.IO.File.Move(AssetsToAbsolutePath(changeOneFile), targetFile2);
}
else
{
string sceneName = findSceneNameList[0].Substring(findSceneNameList[0].LastIndexOf("/") + 1);
sceneName = sceneName.Substring(0, sceneName.Length - 6);
string targetFile1 = AssetsToAbsolutePath("Assets/Projects/" + genreName + "/Scene" + genreName + "/" + sceneName + "/" + upFolderName + "/" + changeOneFile.Substring(changeOneFile.LastIndexOf("/") + 1) + ".meta");
string targetFile2 = AssetsToAbsolutePath("Assets/Projects/" + genreName + "/Scene" + genreName + "/" + sceneName + "/" + upFolderName + "/" + changeOneFile.Substring(changeOneFile.LastIndexOf("/") + 1));
{
string[] folderSplit = targetFile1.Split("/");
string nowFolder = folderSplit[0];
for (int i = 1; i < folderSplit.Length - 1; i++)
{
nowFolder += "/" + folderSplit[i];
if (!System.IO.Directory.Exists(nowFolder))
{
System.IO.Directory.CreateDirectory(nowFolder);
}
}
}
if (System.IO.File.Exists(targetFile1))
{
System.IO.File.Delete(targetFile1);
}
System.IO.File.Move(AssetsToAbsolutePath((changeOneFile + ".meta")), targetFile1);
if (System.IO.File.Exists(targetFile2))
{
System.IO.File.Delete(targetFile2);
}
System.IO.File.Move(AssetsToAbsolutePath(changeOneFile), targetFile2);
}
}
}
foreach(string oneScene in sceneFilePathList)
{
string resultFileName = AssetsToAbsolutePath("Assets/Projects/Scenes/" + oneScene.Substring(oneScene.LastIndexOf("/") + 1));
if(oneScene.Equals(resultFileName))
{
continue;
}
if (System.IO.File.Exists(resultFileName))
{
System.IO.File.Delete(resultFileName);
}
System.IO.File.Move(oneScene, resultFileName);
}
foreach(string oneDirectory in System.IO.Directory.GetDirectories(AssetsToAbsolutePath("Assets/SephirothOrganizeFolders/OrganizeFolders")))
{
UnityEditor.FileUtil.DeleteFileOrDirectory(AssetsToAbsolutePath(oneDirectory));
System.IO.File.Delete(AssetsToAbsolutePath(oneDirectory + ".meta"));
}
UnityEditor.AssetDatabase.Refresh();
if (!isAutoSave)
{
#pragma warning disable CS0162 // Unreachable code detected
System.IO.File.Delete("Assets/SephirothOrganizeFolders/OrganizeFolders/." + nowDateTime.ToString("yyyy_MM_dd_HH_mm_ss") + ".unitypackage");
#pragma warning restore CS0162 // Unreachable code detected
}
UnityEditor.AssetDatabase.Refresh();
Debug.Log("Move Finished...");
}
private static void CreateDirectories(List<string> sceneFilePathList)
{
List<string> genreNameList = new();
genreNameList.Add("Scripts");
genreNameList.Add("Prefabs");
genreNameList.Add("Animations");
genreNameList.Add("Materials");
genreNameList.Add("PhysicsMaterials");
genreNameList.Add("Fonts");
genreNameList.Add("Textures");
genreNameList.Add("Audio");
genreNameList.Add("Models");
genreNameList.Add("Shaders");
genreNameList.Add("Resources");
genreNameList.Add("Editor");
genreNameList.Add("Plugins");
genreNameList.Add("Other");
List<string> createList = new();
createList.Add("Assets/Projects");
createList.Add("Assets/Projects/Scenes");
foreach (string oneGenreName in genreNameList)
{
createList.Add("Assets/Projects/" + oneGenreName);
createList.Add("Assets/Projects/" + oneGenreName + "/Common" + oneGenreName);
createList.Add("Assets/Projects/" + oneGenreName + "/NoUse" + oneGenreName);
createList.Add("Assets/Projects/" + oneGenreName + "/Scene" + oneGenreName);
}
for(int i = 0; i < createList.Count; i++)
{
if(!System.IO.Directory.Exists(AssetsToAbsolutePath(createList[i])))
{
System.IO.Directory.CreateDirectory(AssetsToAbsolutePath(createList[i]));
}
}
}
private static List<string> GetSubDirectories(string path)
{
string[] directoriesArr = System.IO.Directory.GetDirectories(AssetsToAbsolutePath(path));
List<string> result = new List<string>(directoriesArr);
foreach (string innerPath in directoriesArr)
{
result.AddRange(GetSubDirectories(innerPath));
}
return result;
}
private static string AssetsToAbsolutePath(string self)
{
if (self.StartsWith("Assets"))
{
self = Application.dataPath + self.Substring(6);
}
return self;
}
private static void TakeBackUP(System.DateTime nowDateTime)
{
if (!System.IO.Directory.Exists(AssetsToAbsolutePath("Assets/SephirothOrganizeFolders/OrganizeFolders"))) System.IO.Directory.CreateDirectory(AssetsToAbsolutePath("Assets/SephirothOrganizeFolders/OrganizeFolders"));
UnityEditor.AssetDatabase.ExportPackage("Assets", AssetsToAbsolutePath("Assets/SephirothOrganizeFolders/OrganizeFolders/." + nowDateTime.ToString("yyyy_MM_dd_HH_mm_ss") + ".unitypackage"), UnityEditor.ExportPackageOptions.Recurse);
}
}
}
```
***
Above, we have released the folder organization assets.
We hope that this will be helpful for your development.
Thank you for viewing. | uni928 |
1,920,447 | Some lesser known tools that helped me learn Web Development | Below are some links to sites that helped in various areas Idea Help Good Brief ... | 0 | 2024-07-12T04:02:35 | https://dev.to/matthew_hawkins_90ebe848f/some-lesser-known-tools-that-helped-me-learn-web-development-2402 | webdev, beginners | Below are some links to sites that helped in various areas
#### Idea Help
[Good Brief](https://goodbrief.io/)
#### Fonts
[Free Faces](https://www.freefaces.gallery/)
#### Markdown stuff
[For The Badge](https://forthebadge.com/)
[Markdown help with visuals](https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax)
#### Silly
[Emoji CopyPasta](https://getemoji.com/)
| matthew_hawkins_90ebe848f |
1,920,448 | பைத்தான் - 2ம் நாள் | Data types பைத்தானில் 4 வகைத் தரவுகள் உள்ளன. அவையாவன: Numeric data type String data type Boolean... | 0 | 2024-07-12T11:58:52 | https://dev.to/fathima_shaila/paittaannn-2m-naall-3np5 | <h3>Data types</h3>
பைத்தானில் 4 வகைத் தரவுகள் உள்ளன. அவையாவன:
* Numeric data type
* String data type
* Boolean data type
* None data type
**Numeric data type**
Numeric data type எண்களைக் குறிக்கும். இவற்றை மூன்று வகைப்படுத்தலாம்.
* Integer - இவை முழு எண்கள் 2, 50, 638, 9743
* float / decimal- இவை தசம எண்கள், பின்னங்களும் தசமங்களாக மாற்றப்படுவதால் இவற்றில் உள்ளடங்கும். 3.14, 738.244, 13.8
* Complex Number- சிக்கலெண்கள் அதாவது மெய்யெண்ணும் கற்பனை எண்ணும் சேர்ந்த கூட்டெண்.
3+3j, 24-2x
Data types ஐ கண்டறிவதற்கு type()ஐ பயன்படுத்தலாம்
type(4.5)
>>>float
type("hello")
>>>str
**String**
String இரட்டை அல்லது ஒற்றை மேற்கோள் குறிகளுக்குள் (quotation marks) எழுதப்படும் இவற்றில் letters, characters, space, etc… உள்ளடங்கும்.
**Type casting**
type casting இல் integerஐ string ஆகவும் stringஐ integer ஆகவும் மாற்றலாம்.
int("123")
>>>123
str(231)
>>>"231"
**Boolean**
True அல்லது False ஆகிய இரு முடிவை மட்டும் தரக்கூடியவை.
<h3>Variables</h3>
Variable- object, value, data என்பவற்றை குறிக்கின்றது.
Variablesகளை எழுதும் போது
Underscope, characters உடன் ஆரம்பிக்க வேண்டும். குறியீடுகள், எண்களால் ஆரம்பிக்க கூடாது. இறுதியில் எண்களை இடலாம்.
first_name ✅
first1 ✅
First name❌
&first ❌
1first ❌
**Single Assignment**
Text="Hello World"
**Multiple Assignment**
name, age = hiba, 2
| fathima_shaila | |
1,920,449 | This is not a presentation..." | Hello, my name is João Victor! How come you've never heard of me? I'm 25 years old and currently... | 0 | 2024-07-12T04:10:59 | https://dev.to/viquitor/isso-nao-e-uma-apresentacao-eme | design, frontend, learning | Hello, my name is João Victor! How come you've never heard of me?
I'm 25 years old and currently studying Software Engineering. I'm interning as an Android Developer, Tech Lead for the Frontend team, and Scrum Master for other teams. To be honest, the internship hasn't been fulfilling lately.
I've always been a dreamer.
Going beyond standards and rules, allowing my imagination to transcend lines and colors. I've always wanted to turn my dreams into reality, paying attention to the details that make an idea unique and special.
I enjoy writing and creating my own universe, where things flow seamlessly even when endings aren't happy. What matters is the journey. Writing reveals who I am.
It's almost impossible to destroy an idea. Once created, it gains strength, grows, and becomes a part of us. The more we understand it, the more immortal and demanding it becomes. Creating an idea is hard, but making it real is even more challenging.
I do this for myself, and I write for myself, more than anything else, because fear and loneliness have been paralyzing.
Could dreaming be just another step in this journey? | viquitor |
1,920,450 | Bộ laravel khoapham cho devs mới | https://www.youtube.com/watch?v=NJy-LuemNww&list=PLzrVYRai0riRnmKWhDEYixPDLs3CCk2lO Bộ này có... | 0 | 2024-07-12T04:12:43 | https://dev.to/peternguyenexpert/bo-laravel-khoapham-cho-devs-moi-n2d | https://www.youtube.com/watch?v=NJy-LuemNww&list=PLzrVYRai0riRnmKWhDEYixPDLs3CCk2lO Bộ này có Model -> Service --> controller | peternguyenexpert | |
1,920,453 | 1st of 100 days? | I was bored, so I decided to start documenting my studies from here. I began studying React, which... | 0 | 2024-07-12T04:24:55 | https://dev.to/viquitor/1st-of-100-days-fgd | frontend, frontendchallenge, learning | I was bored, so I decided to start documenting my studies from here.
I began studying React, which still seems quite confusing to me. That's when I discovered Frontend Mentor, a platform with various challenges.
I admit I took on a simple yet very useful challenge. I managed to develop many functionalities and personalized it according to my preferences. I can't deny it's not perfect, but for a first project, I believe it's sufficient, isn't it?
> "It's a small step for a developer, but a big dream for me."
Here was the challenge: [Frontend Mentor Challenge](https://www.frontendmentor.io/solutions/social-link-profile-using-react-and-tailwindcss-CYMKFp3im1)
And here's the result: [Social Link Profile](https://viquitor-me.vercel.app)
There are still a few things I'd like to adjust, such as adding a light and dark mode. So, I'm open to suggestions.
Why do I do what I do? I'm still not sure... | viquitor |
1,920,455 | reshape() and view() in PyTorch | *Memos: My post explains transpose() and t(). My post explains adjoint(), mH and mT. My post... | 0 | 2024-07-12T04:28:30 | https://dev.to/hyperkai/reshape-and-view-in-pytorch-40n5 | pytorch, reshape, view, function | *Memos:
- [My post](https://dev.to/hyperkai/transpose-and-t-in-pytorch-1pp2) explains [transpose()](https://pytorch.org/docs/stable/generated/torch.transpose.html) and [t()](https://pytorch.org/docs/stable/generated/torch.t.html).
- [My post](https://dev.to/hyperkai/adjoint-mh-and-mt-in-pytorch-5c04) explains [adjoint()](https://pytorch.org/docs/stable/generated/torch.adjoint.html), [mH](https://pytorch.org/docs/stable/tensors.html#torch.Tensor.mH) and [mT](https://pytorch.org/docs/stable/tensors.html#torch.Tensor.mT).
- [My post](https://dev.to/hyperkai/permute-in-pytorch-5d49) explains [permute()](https://pytorch.org/docs/stable/generated/torch.permute.html).
- [My post](https://dev.to/hyperkai/movedim-in-pytorch-5gla) explains [movedim()](https://pytorch.org/docs/stable/generated/torch.movedim.html).
[reshape()](https://pytorch.org/docs/stable/generated/torch.reshape.html) or [view()](https://pytorch.org/docs/stable/generated/torch.Tensor.view.html) can get the 0D or more D reshaped tensor of zero or more elements without losing data from the 0D or more D tensor of zero or more elements as shown below:
*Memos:
- `reshape()` can be used with [torch](https://pytorch.org/docs/stable/torch.html) or a tensor while `view()` can be used with a tensor but not with `torch`.
- For `reshape()`, the 1st argument(`input`) with `torch` or using a tensor(Required-Type:`tensor` of `int`, `float`, `complex` or `bool`).
- For `reshape()`, the 2nd argument with `torch`(Type:`tuple` of `int` or `list` of `int`) or the 1st or more arguments with a tensor(Type:`int`, `tuple` of `int` or `list` of `int` are `shape`(Required).
- For `view()`, using a tensor(Required-Type:`tensor` of `int`, `float`, `complex` or `bool`).
- For `view()`, the 1st or more arguments with a tensor are `*shape`(Required-Type:`int`, `tuple` of `int` or `list` of `int`). *`*shape=` or `shape=` cannot be used.
- For `view()`, the 1st argument with a tensor is `dtype`(Required-Type:[dtype](https://pytorch.org/docs/stable/tensor_attributes.html#torch.dtype)):
*Memos:
- If `dtype` is not given, `dtype` is inferred from a tensor.
- [My post](https://dev.to/hyperkai/set-dtype-with-dtype-argument-functions-and-get-it-in-pytorch-13h2) explains `dtype` argument.
- For `reshape()` and `view()`, setting `-1` to `shape` as the 1st number can adjust the size automatically so you don't need to set `24`, `4`, `2` or `3` as the 1st number. *`-1` is available only as the 1st number.
- `reshape()` may create a copy taking more memory while `view()` doesn't create a copy so `view()` can be ligher and faster than `reshape()`.
```python
import torch
my_tensor = torch.tensor([[0, 1, 2], [3, 4, 5],
[6, 7, 8], [9, 10, 11]])
torch.reshape(input=my_tensor, shape=(12,))
torch.reshape(input=my_tensor, shape=(-1,))
my_tensor.reshape(shape=(12,))
my_tensor.reshape(shape=(-1,))
my_tensor.reshape(12)
my_tensor.reshape(-1)
my_tensor.view((12,))
my_tensor.view((-1,))
my_tensor.view(12)
my_tensor.view(-1)
# tensor([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11])
torch.reshape(input=my_tensor, shape=(1, 12))
torch.reshape(input=my_tensor, shape=(-1, 12))
my_tensor.reshape(shape=(1, 12))
my_tensor.reshape(shape=(-1, 12))
my_tensor.reshape(1, 12)
my_tensor.reshape(-1, 12)
my_tensor.view((1, 12))
my_tensor.view((-1, 12))
my_tensor.view(1, 12)
my_tensor.view(-1, 12)
# tensor([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]])
torch.reshape(input=my_tensor, shape=(2, 6))
torch.reshape(input=my_tensor, shape=(-1, 6))
my_tensor.reshape(shape=(2, 6))
my_tensor.reshape(shape=(-1, 6))
my_tensor.reshape(2, 6)
my_tensor.reshape(-1, 6)
my_tensor.view((2, 6))
my_tensor.view((-1, 6))
my_tensor.view(2, 6)
my_tensor.view(-1, 6)
# tensor([[0, 1, 2, 3, 4, 5],
# [6, 7, 8, 9, 10, 11]])
torch.reshape(input=my_tensor, shape=(3, 4))
torch.reshape(input=my_tensor, shape=(-1, 4))
my_tensor.reshape(shape=(3, 4))
my_tensor.reshape(shape=(-1, 4))
my_tensor.reshape(3, 4)
my_tensor.reshape(-1, 4)
my_tensor.view((3, 4))
my_tensor.view((-1, 4))
my_tensor.view(3, 4)
my_tensor.view(-1, 4)
# tensor([[0, 1, 2, 3],
# [4, 5, 6, 7],
# [8, 9, 10, 11]])
torch.reshape(input=my_tensor, shape=(4, 3))
torch.reshape(input=my_tensor, shape=(-1, 3))
my_tensor.reshape(shape=(4, 3))
my_tensor.reshape(shape=(-1, 3))
my_tensor.reshape(4, 3)
my_tensor.reshape(-1, 3)
my_tensor.view((4, 3))
my_tensor.view((-1, 3))
my_tensor.view(4, 3)
my_tensor.view(-1, 3)
# tensor([[0, 1, 2],
# [3, 4, 5],
# [6, 7, 8],
# [9, 10, 11]])
torch.reshape(input=my_tensor, shape=(6, 2))
torch.reshape(input=my_tensor, shape=(-1, 2))
my_tensor.reshape(shape=(6, 2))
my_tensor.reshape(shape=(-1, 2))
my_tensor.reshape(6, 2)
my_tensor.reshape(-1, 2)
my_tensor.view((6, 2))
my_tensor.view((-1, 2))
my_tensor.view(6, 2)
my_tensor.view(-1, 2)
# tensor([[0, 1],
# [2, 3],
# [4, 5],
# [6, 7],
# [8, 9],
# [10, 11]])
torch.reshape(input=my_tensor, shape=(12, 1))
torch.reshape(input=my_tensor, shape=(-1, 1))
my_tensor.reshape(shape=(12, 1))
my_tensor.reshape(shape=(-1, 1))
my_tensor.reshape(12, 1)
my_tensor.reshape(-1, 1)
my_tensor.view((12, 1))
my_tensor.view((-1, 1))
my_tensor.view(12, 1)
my_tensor.view(-1, 1)
# tensor([[0],
# [1],
# [2],
# [3],
# [4],
# [5],
# [6],
# [7],
# [8],
# [9],
# [10],
# [11]])
torch.reshape(input=my_tensor, shape=(2, 2, 3))
torch.reshape(input=my_tensor, shape=(-1, 2, 3))
my_tensor.reshape(shape=(2, 2, 3))
my_tensor.reshape(shape=(-1, 2, 3))
my_tensor.reshape(2, 2, 3)
my_tensor.reshape(-1, 2, 3)
my_tensor.view((2, 2, 3))
my_tensor.view((-1, 2, 3))
my_tensor.view(2, 2, 3)
my_tensor.view(-1, 2, 3)
# tensor([[[0, 1, 2],
# [3, 4, 5]],
# [[6, 7, 8],
# [9, 10, 11]]])
etc.
torch.reshape(input=my_tensor, shape=(1, 2, 2, 3))
torch.reshape(input=my_tensor, shape=(-1, 2, 2, 3))
my_tensor.reshape(shape=(1, 2, 2, 3))
my_tensor.reshape(shape=(-1, 2, 2, 3))
my_tensor.reshape(1, 2, 2, 3)
my_tensor.reshape(-1, 2, 2, 3)
my_tensor.view((1, 2, 2, 3))
my_tensor.view((-1, 2, 2, 3))
my_tensor.view(1, 2, 2, 3)
my_tensor.view(-1, 2, 2, 3)
# tensor([[[[0, 1, 2],
# [3, 4, 5]],
# [[6, 7, 8],
# [9, 10, 11]]]])
etc.
my_tensor = torch.tensor([[0., 1., 2.], [3., 4., 5.],
[6., 7., 8.], [9., 10., 11.]])
torch.reshape(input=my_tensor, shape=(12,))
torch.reshape(input=my_tensor, shape=(-1,))
my_tensor.view((12,))
my_tensor.view((-1,))
# tensor([0., 1., 2., 3., 4., 5., 6., 7., 8., 9., 10., 11.])
my_tensor = torch.tensor([[0.+0.j, 1.+0.j, 2.+0.j],
[3.+0.j, 4.+0.j, 5.+0.j],
[6.+0.j, 7.+0.j, 8.+0.j],
[9.+0.j, 10.+0.j, 11.+0.j]])
torch.reshape(input=my_tensor, shape=(12,))
torch.reshape(input=my_tensor, shape=(-1,))
my_tensor.view((12,))
my_tensor.view((-1,))
# tensor([0.+0.j, 1.+0.j, 2.+0.j, 3.+0.j, 4.+0.j, 5.+0.j,
# 6.+0.j, 7.+0.j, 8.+0.j, 9.+0.j, 10.+0.j, 11.+0.j])
my_tensor = torch.tensor([[True, False, True], [True, False, True],
[False, True, False], [False, True, False]])
torch.reshape(input=my_tensor, shape=(12,))
torch.reshape(input=my_tensor, shape=(-1,))
my_tensor.view((12,))
my_tensor.view((-1,))
# tensor([True, False, True, True, False, True,
# False, True, False, False, True, False])
``` | hyperkai |
1,920,456 | Mastering Go: A Comprehensive Guide to Building Production-Ready Apps 🚀 | Comprehensive guide to building and deploying production-grade Go applications. Covers best practices, tools, and techniques for software development and deployment. | 27,801 | 2024-07-12T04:29:19 | https://dev.to/getvm/mastering-go-a-comprehensive-guide-to-building-production-ready-apps-4eoj | getvm, programming, freetutorial, technicaltutorials |
Hey there, fellow developers! 👋 If you're looking to take your Go programming skills to the next level and build robust, production-ready applications, then I've got the perfect resource for you: "Production Go | Go Programming | Building Production-Ready Apps."
This comprehensive guide is a treasure trove of knowledge, covering everything from the fundamentals of Go to the advanced techniques and best practices you need to create top-notch software. Whether you're a beginner or an experienced Go developer, this book has something for everyone.
## What's Inside? 📚
The book starts by guiding you through the installation process and setting up your development environment, ensuring you're all set to dive into the world of Go programming. From there, it delves into the basics of the language, including data types, structs, and control flow, giving you a solid foundation to build upon.
But the real magic happens when the book explores the advanced topics. You'll learn about string handling, Unicode support, and the power of concurrency in Go. And the best part? The author provides a detailed table of contents with links to relevant sections, making it easy to navigate and find the information you need.
## Practical Guidance for Production-Ready Code 🛠️
One of the standout features of this book is its focus on best practices and techniques for writing production-ready Go code. The author shares valuable insights on error handling, code style, and other crucial aspects that will help you create software that is not only functional but also maintainable and scalable.
## Recommendation 👍
Whether you're new to Go or an experienced developer looking to level up your skills, "Production Go | Go Programming | Building Production-Ready Apps" is a must-have resource. With its comprehensive coverage, practical guidance, and engaging writing style, this book is sure to become your go-to (pun intended) companion on your journey to mastering Go.
So, what are you waiting for? 🤔 Head over to [https://leanpub.com/productiongo/read](https://leanpub.com/productiongo/read) and start your journey to building production-ready Go applications today! 🚀
## Supercharge Your Learning with GetVM Playground 🚀
But wait, there's more! To truly master the concepts covered in "Production Go | Go Programming | Building Production-Ready Apps," I highly recommend using the GetVM Playground. This powerful online coding environment allows you to put your newfound knowledge into practice, right in your browser.
With GetVM Playground, you can easily access the [Production Go tutorial](https://getvm.io/tutorials/production-go) and experiment with the code examples. No need to set up a local development environment – the Playground provides a seamless, cloud-based coding experience, allowing you to focus on learning and writing code.
The beauty of GetVM Playground lies in its simplicity and convenience. 💻 You can quickly spin up a pre-configured coding environment, complete with the necessary dependencies and tools, and start coding right away. No more time-consuming setup or configuration hassles – just write, test, and iterate on your code, all within the browser.
But the real magic happens when you combine the comprehensive knowledge from the "Production Go" book with the hands-on practice in the GetVM Playground. 🤩 This powerful duo will help you solidify your understanding of Go programming and equip you with the skills to build production-ready applications. So why wait? Head over to the [Production Go tutorial](https://getvm.io/tutorials/production-go) in GetVM Playground and start coding your way to Go mastery today!
---
## Practice Now!
- 🔗 Visit [Production Go | Go Programming | Building Production-Ready Apps](https://leanpub.com/productiongo/read) original website
- 🚀 Practice [Production Go | Go Programming | Building Production-Ready Apps](https://getvm.io/tutorials/production-go) on GetVM
- 📖 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 |
1,920,458 | How to Use AI in Trading? | Beginner's Guide: How to Use AI in Trading Strategies Welcome to the world of... | 0 | 2024-07-12T04:36:21 | https://dev.to/endacusack/how-to-use-ai-in-trading-373e | ai, beginners | ## Beginner's Guide: How to Use AI in Trading Strategies
Welcome to the world of technological innovation, where we harness the powers of AI to revolutionize day-to-day activities. When it comes to the financial markets, the influence of Artificial Intelligence has become increasingly significant, transforming age-old practices into sophisticated, efficient endeavors. In this comprehensive guide, we aim to unlock the complexities around leveraging AI in developing solid trading strategies.
Whether you're a market novice or a seasoned professional, you will find enlightening insights about the rise and impact of AI in the financial services sector. This guide provides a clear understanding of the role AI plays in Forex trading, delving into its effects on automation and trade algorithms.
We'll also explore the impressive potential AI holds for organizations, highlighting vital stats that showcase its current use cases. The narrative will lead us through generative AI's unprecedented effect on the finance industry, illustrating how its unique capacities can further advance trading methodologies.
For those seeking to incorporate AI into their business strategies, you'll discover the importance of AI integration plans and be enlightened on the crucial role of AI in digital transformation. The guide takes a look forward, providing a glimpse of the market forecast for AI, a subject matter that piques the interest of investors and tech enthusiasts alike.
As we move towards a future poised to be dominated by machine learning and AI, the need to understand its intricacies becomes vital. This guide offers ten exciting tips on how AI can be used in stock trading strategies, from leveraging real-time market data and risk management protocols to predicting market sentiments with laser precision.
We hope that you plunge into this guide with an open mind, eager to learn, and ready to augment your trading strategies with artificial intelligence. The world is evolving rapidly, and it is imperative you stay ahead of the learning curve. Let's dive in.
## The Rise of AI in Financial Services
The field of financial services is rapidly transforming, and a significant protagonist driving this change is Artificial Intelligence (AI). The adoption of AI in financial services is no longer a futuristic dream but a present-day reality. It is reshaping the sector from the core, offering unprecedented opportunities for growth and advancement. Whether it's sophisticated algorithms for trading or advanced predictive analytics for risk management, AI plays a crucial part in the modern financial landscape.
**Market Revenue Estimates**
One clear indicator of the blossoming relationship between AI and finance is the robust market revenue projections. By 2032, the market revenue for AI adoption in financial services is projected to reach a staggering $9.48 billion. This is no small feat, considering that this includes technologies from machine learning to natural language processing, all tailored to meet the specific needs of finance.
Why the surge in revenue projections, you might ask? A flurry of factors contribute:
- Improved decision-making: AI can process vast amounts of data swiftly and accurately, facilitating informed decisions.
- Risk management: AI systems are proficient at detecting patterns and anomalies, proving to be a valuable asset in identifying and mitigating risks.
- Business growth: The automation of routine tasks frees up resources and time, allowing businesses to focus on growth and development.
**Growth in Adoption**
This substantial rise in revenue isn't the only endorsement of AI's prowess. One must not overlook the rate at which the finance industry is adopting AI, outpacing many other sectors. So, what makes AI so attractive to financial service providers? The reasons are plentiful:
1. Enhanced customer experience: AI-driven chatbots and personalized services are redefining customer interactions, leading to increased satisfaction and loyalty.
2. Operational efficiency: AI and automation significantly reduce manual effort, resulting in streamlined operations and better productivity.
3. Regulatory compliance: With constant changes in financial regulations, AI can help keep up with these regulations effectively, minimizing non-compliance risks.
## AI's Impact on the Trading Market
One cannot discuss the rise of AI in Financial Services without focusing on the trading market. The estimated market for AI in trading is expected to reach a whopping USD 50.4 billion by 2033, with a Compound Annual Growth Rate (CAGR) of 10.7%. The mounting evidence of the effectiveness of trading algorithms, prediction systems, and other artificial intelligence tools in trading explains their extensive adoption. They offer immense benefits such as:
- Precision and speed: Trading algorithms can perform transactions at lightning speed, a feat impossible for human traders.
- Round-the-clock trading: Unlike humans, AI trading systems can work 24/7 without fatigue or loss of focus.
- Data-driven investments: AI can analyze numerous market factors to predict trends and recommend investments, promoting smarter investment decisions.
Artificial Intelligence appears destined to play a pivotal role in the reshaping of the financial services industry. The growth in market revenues and the wide-scale adoption of AI technologies herald a new era of finance, marked by increased efficiency, enhanced risk management, and exceptional customer service. As these technological advancements become more ingrained, it's clear that the future of finance is undoubtedly intelligent.
## The Role of AI in Forex Trading
Welcome to the world of AI in Forex Trading, where automation and complex algorithms are taking center stage. If you've ever wondered how Artificial Intelligence (AI) has infiltrated the financial markets and revolutionized forex trading, we've got some crucial insights to share with you. We're looking specifically at the extent of automation in foreign exchange trades and the increasing reliance on algorithmic trading methods.
**Automation in Forex Trades**
Did you know, studies suggest that over half of forex trades are now automated? This means that automated trading systems are now making decisions that were once left up to humans. These systems can analyze market data, monitor currency price movements, and even execute trades without manual intervention.
Why the shift? Here are some of the reasons:
1. Efficiency and Speed: Automated systems can process complex calculations in split seconds, way faster than any human can.
2. 24/7 Trading: The forex market operates twenty-four hours a day. Bots don't need sleep, enabling continuous trading.
3. Elimination of Emotional Bias: AI operates on set algorithms, devoid of emotional input eliminating the risk of impulsive decisions.
**Reliance on Algorithmic Trading**
Now, let's zoom in on these trading algorithms that have become such a crucial part of forex trading. More than two-thirds of forex traders now place their faith in algorithmic trading.
There are incredible benefits of relying on algorithmic trading:
- High Precision: With algorithmic trading, you get enhanced precision and accuracy as it eliminates the probability of human error.
- Backtesting Abilities: Algorithms allow you to backtest strategies on historical data to ensure they're efficient.
- Scalability: Algorithms can handle complex calculations for multiple currency pairs simultaneously.
However, while the role of AI in Forex Trading is growing, it's essential to remember that it's not a magic wand for instant success. A comprehensive understanding of how these tools work is crucial.
AI has certainly streamlined forex trading, but the importance of human intuition and expert insight can't be side-lined. It's about leveraging the best of both worlds to make the most out of your trading ventures. Understanding this evolving AI landscape in forex trading is the first step. The next is to adapt, and the final is to thrive.
## 10 Tips for Using AI in Stock Trading Strategies
The stock market landscape has been profoundly reshaped by technology, particularly Artificial Intelligence (AI). From predicting market trends to managing risks, AI has become a valuable asset for traders worldwide. Here are the top 10 tips for effectively integrating AI into your trading strategies, all designed to help you outperform market benchmarks and scale your trading efforts smoothly.
1. Leveraging Real-time Market Data
AI thrives on data, and when it comes to stock trading, more recent data equals more relevant decisions. Real-time market data provides the AI with an accurate snapshot of the current market situation. This can help your AI tool in determining the best trades that align with your investment goals.
2. Effective Risk Management Protocols
With AI, you can implement risk management protocols that calculate the potential risks of trading decisions. It can help in identifying the trades that are more likely to result in losses, offering you a safety net in the volatile world of stock trading.
3. Automating Your Trading Algorithm
AI comes with the capability to learn and adapt, which means it can continually refine your trading algorithms. Traders can depend on AI for carrying out millions of trades, refining the processes, and constantly adjusting the algorithms based on the market's reaction.
4. Collecting Historical Market Data
The more historical data your AI has, the more refined your trading strategies will be. Past market data is a treasure trove of patterns and trends which your AI system can learn and guess future movements accurately.
5. Utilizing Predictive Modeling
Predictive modeling can help you determine the future performance of stocks. Through Machine Learning (ML) algorithms, AI can find patterns in historical and real-time data to forecast future price moves.
6. Analyzing Market Sentiment
AI’s powerful algorithms can analyze market sentiment, i.e., how investors feel about specific stocks or the market. Positive sentiment often leads to increased buying, while negative sentiment can trigger a sell-off.
7. Reliance on AI-driven Algorithms
AI's sophisticated computations are much more reliable than human predictions. If used well, AI-driven algorithms can outmaneuver traditional methods and give you a significant edge in trading.
8. Comprehensive Analysis
AI's ability to analyze a vast amount of data from multiple sources simultaneously only adds to its value in stock trading. Most human traders can't process such vast amounts of data quickly and efficiently.
9. Technical Analysis and Price Trends
AI systems are excellent in recognizing complex patterns in stock price movements, offering a sharper, more detailed technical analysis. By constantly learning from past data, these systems can significantly improve the quality of your decision-making process.
10. Optimizing Trading Strategies with AI
AI can contribute to the refinement and optimization of your trading strategies. Through its learning capabilities, AI can help identify the most rewarding strategies and tweak the less productive ones.
Integrating AI in your stock trading is an investment that yields fruitful outcomes over time. So, whether you're a seasoned stock trader or just getting started, using AI in trading could be your leap towards success. Harness its capabilities and let AI be the catalyst for your next big trading win.
**Conclusion**
Embracing AI not only propels your trading strategies to the next level but also gives you an edge in the ever-evolving world of finance. It is clear that AI’s potential to remodel the trading landscape is considerable, with reliable, efficient, and sophisticated trading solutions coming within our grasp. However, the journey towards mastering AI-integrated trading techniques may seem complex, especially for beginners.
As you embark on your journey into the world of algorithmic [trading and AI](https://www.buystocks.ai), it's important to stay up-to-date with emerging trends and techniques. | endacusack |
1,920,459 | BDD - Desenvolvimento Orientado pelo Comportamento | Desenvolvimento Orientado pelo Comportamento(BDD) Introdução ao... | 0 | 2024-07-12T04:37:15 | https://dev.to/yuri-aprendendoqa/bdd-desenvolvimento-orientado-pelo-comportamento-32n3 | # Desenvolvimento Orientado pelo Comportamento(BDD)
## Introdução ao BDD
Behavior-Driven Development (BDD) é uma abordagem de desenvolvimento de software que incentiva a colaboração entre desenvolvedores, testadores e stakeholders de negócios. O principal objetivo do BDD é garantir que todos os membros da equipe compreendam claramente os requisitos do sistema, descrevendo o comportamento desejado de um aplicativo em uma linguagem natural e acessível a todos os envolvidos.
## Origem e Evolução do BDD
BDD evoluiu a partir do Test-Driven Development (TDD) e foi popularizado por Dan North em 2006. Ele surgiu como uma resposta às dificuldades enfrentadas com TDD, propondo uma abordagem que focasse mais no comportamento esperado do sistema do que nos detalhes técnicos dos testes. Com o tempo, BDD cresceu para incluir uma visão mais ampla da análise ágil e dos testes de aceitação automatizados, unificando pessoas técnicas e de negócios usando uma linguagem comum centrada no comportamento do usuário.
## Princípios Fundamentais do BDD
1. **Colaboração**: Promove a comunicação contínua entre todos os stakeholders.
2. **Linguagem Natural**: Utiliza uma linguagem comum (Gherkin) para descrever requisitos e critérios de aceitação.
3. **Documentação Viva**: Os testes BDD servem como documentação atualizada do comportamento do sistema.
4. **Ciclos Curtos de Feedback**: Facilita a identificação e resolução rápida de problemas por meio de iterações curtas e frequentes.
## Ferramentas Comuns de BDD
- **Cucumber**: Linguagem de especificação: Gherkin. Integra-se com várias linguagens de programação como Ruby, Java, JavaScript. Permite escrever testes em linguagem natural compreensível por todas as partes interessadas.
- **SpecFlow**: Versão do Cucumber para .NET. Linguagem de especificação: Gherkin. Integra-se com MSTest, NUnit e xUnit para testes de aceitação.
- **JBehave**: Ferramenta de BDD para Java. Linguagem de especificação: Story. Facilita testes de aceitação integrando-se com JUnit.
- **Behat**: Ferramenta de BDD para PHP. Linguagem de especificação: Gherkin. Integrado com bibliotecas PHP como Mink para testes de navegador.
- **Gauge**: Ferramenta leve para criar especificações de teste. Suporta várias linguagens como Java, Ruby, C#, Python. Usa um formato de especificação simples e reusável.
- **Lettuce**: Ferramenta de BDD para Python. Linguagem de especificação: Gherkin. Facilita a escrita de testes de comportamento de forma clara.
- **Concordion**: Ferramenta de BDD para Java. Usa HTML para escrever especificações de teste. Testes são incorporados em documentos HTML.
- **Turnip**: Extensão do Cucumber para Ruby. Linguagem de especificação: Gherkin. Focado em testes de aceitação para aplicações Ruby.
## Implementação do BDD em Projetos
### Passo 1: Definição dos Cenários
Comece identificando os cenários de uso mais importantes e descreva-os em linguagem natural utilizando a estrutura "Dado, Quando, Então".
### Passo 2: Automação dos Testes
Utilize uma ferramenta BDD (como Cucumber) para automatizar os cenários descritos. Isso envolve a criação de "steps" que correspondem a cada etapa dos cenários.
### Passo 3: Integração Contínua
Integre a execução dos testes BDD no seu pipeline de CI/CD. Isso garante que os testes sejam executados regularmente e que o feedback sobre o estado do sistema seja contínuo.
## Tipos de Escrita para BDD
### Método Imperativo
O método imperativo descreve o cenário passo a passo, detalhando ações, nomes de botões e páginas acessadas. É mais utilizado para pessoas que realizam testes manuais e sentem a necessidade de visualizar detalhadamente todos os passos de um cenário.
- **Exemplo**:
```gherkin
Funcionalidade: Compra de Produto
Cenário: Compra de produto com sucesso
Dado que o usuário está na página inicial
Quando ele clica no link "Login"
E preenche o campo de e-mail com "usuario@exemplo.com"
E preenche o campo de senha com "senhaSegura123"
E clica no botão "Entrar"
Então ele deve ser redirecionado para a página "Minha Conta"
Dado que ele está logado na página "Minha Conta"
Quando ele pesquisa pelo produto "Smartphone XYZ"
E clica no botão "Buscar"
E clica no link do produto "Smartphone XYZ"
E clica no botão "Adicionar ao Carrinho"
Então ele deve ver uma mensagem "Produto adicionado ao carrinho"
Dado que o produto está no carrinho
Quando ele clica no ícone do carrinho
E clica no botão "Finalizar Compra"
E preenche o endereço de entrega
E escolhe a forma de pagamento "Cartão de Crédito"
E preenche os dados do cartão
E clica no botão "Confirmar Compra"
Então ele deve ver uma mensagem "Compra realizada com sucesso"
```
#### Desvantagens do Método Imperativo
1. **Desgaste e Tempo**: A escrita detalhada de cada passo pode ser desgastante e consumir muito tempo.
2. **Rigidez**: Pequenas mudanças na interface exigem uma revisão completa dos cenários, o que pode ser trabalhoso.
### Método Declarativo
O método declarativo foca no comportamento do usuário e descreve os passos de forma mais abstrata, facilitando o entendimento e a manutenção.
- **Exemplo**:
```gherkin
Funcionalidade: Compra de Produto
Cenário: Compra de produto com sucesso
Dado que o usuário está na página inicial
Quando ele faz login no sistema
E pesquisa e seleciona o produto "Smartphone XYZ"
E adiciona o produto ao carrinho
E finaliza a compra com um cartão de crédito
Então ele deve ver uma mensagem "Compra realizada com sucesso"
```
#### Vantagens do Método Declarativo
1. **Simplicidade**: Cenários mais curtos e de fácil compreensão.
2. **Manutenção**: Menos suscetível a mudanças na interface.
### Sintaxe Gherkin
Gherkin é uma Business Readable Domain Specific Language, criada para descrever comportamentos desejados de um software, removendo os detalhes lógicos dos testes de comportamento.
#### Elementos do Gherkin
- **Given (Dado)**: Descrição das condições para o cenário ocorrer.
- **When (Quando)**: Descrição das ações que devem ocorrer quando o cenário for executado.
- **Then (Então)**: Descrição dos resultados esperados.
- **Funcionalidade**: Define o conjunto de comportamento do sistema.
- **Contexto**: Precondição que se repete para todos os cenários da funcionalidade.
- **Cenário**: Identifica um fluxo por meio do comportamento do sistema.
- **Esquema do cenário**: Informa que esse cenário irá utilizar um conjunto de dados para repeti-lo várias vezes com dados diferentes.
## Boas Práticas para a Escrita do BDD
1. **Flexibilidade**: Não há certo ou errado entre os métodos de escrita apresentados; use o que for mais produtivo para o seu time.
2. **Foco no Comportamento do Usuário**: O comportamento do usuário deve ser o centro das atenções.
3. **Escrita em Terceira Pessoa**: Para manter o foco no usuário.
4. **Objetividade**: Cenários objetivos são mais fáceis de manter e menos propensos a falhas.
5. **Colaboração**: Envolva todo o time na escrita do BDD.
## Como Levar a Abordagem BDD para o Seu Time
### Los Tres Amigos
Também conhecido como Power of Three, este processo consiste em reunir o analista de negócios, um desenvolvedor e um QA para construir cenários e histórias coerentes e de valor para o usuário.
- **Analista de negócios**: Foco nas regras de negócio.
- **Desenvolvedor**: Verificação técnica e soluções alternativas.
- **Analista de qualidade**: Levantamento de cenários não imaginados e questionamento de comportamentos adversos.
### BDD Warriors
Um jogo que ensina de forma divertida como escrever cenários coerentes e objetivos utilizando o mínimo de linhas possíveis. Cada jogador recebe cartas com passos diversos (Given, When, Then) e, a cada rodada, complementa o cenário. O objetivo é completar cenários de forma eficaz e aprender a importância do trabalho em equipe na construção dos BDDs.
## Conclusão
Behavior-Driven Development é uma abordagem poderosa que pode melhorar significativamente a qualidade do software e a comunicação entre os membros da equipe. Embora haja desafios na sua implementação, os benefícios superam as dificuldades, resultando em sistemas que melhor atendem às necessidades dos usuários e facilitam a manutenção e evolução contínua.
| yuri-aprendendoqa | |
1,920,460 | THE ROLE OF SEMANTIC HTML IN ENHANCING SEO AND WEB ACCESSIBILITY | The Role of Semantic HTML in Enhancing SEO and Web Accessibility 1. Introduction... | 0 | 2024-07-12T04:38:45 | https://dev.to/kevin_kimtai/the-role-of-semantic-html-in-enhancing-seo-and-web-accessibility-3k7c |
### The Role of Semantic HTML in Enhancing SEO and Web Accessibility
#### 1. Introduction to Semantic HTML
Semantic HTML involves using HTML tags that provide meaning and context to the web content they enclose. This approach not only improves the visual presentation but also enhances the understanding and accessibility of the content for search engines and users, particularly those using assistive technologies.
#### 2. SEO Benefits of Semantic HTML
##### How Semantic HTML Tags Help Search Engines Index and Rank Web Pages
Semantic HTML tags give search engines clear indicators of the structure and importance of web content. Tags like `<header>`, `<nav>`, `<section>`, `<article>`, and `<footer>` define the various sections of a webpage, making it easier for search engines to parse and understand the content.
- **Example**:
```html
<article>
<header>
<h1>Benefits of Semantic HTML</h1>
<p>Published on July 5, 2024</p>
</header>
<section>
<h2>SEO Advantages</h2>
<p>Using semantic HTML helps search engines understand the structure of the content, improving indexing and ranking...</p>
</section>
<footer>
<p>Author: Jane Doe</p>
</footer>
</article>
```
##### Improving the Relevance and Quality of Search Results
By using semantic HTML, web developers can provide search engines with more accurate information about the content and its significance. This improves the relevance and quality of search results, as search engines can better match the content to user queries.
- **Example**:
Adding semantic tags to a blog post helps search engines identify the title, author, publication date, and main sections of the article, leading to more relevant search results.
##### Positive Impact on SEO Performance
Proper use of semantic HTML can significantly boost a website’s SEO performance. Enhanced content understanding leads to better indexing, higher rankings, and improved visibility in search engine results pages (SERPs).
- **Example**:
A website using semantic HTML for its articles, sections, and headers can achieve higher rankings compared to one using non-semantic tags, due to the improved clarity and structure provided to search engines.
#### 3. Accessibility Improvements with Semantic HTML
##### Aiding Screen Readers and Assistive Technologies
Semantic HTML aids screen readers and other assistive technologies by providing clear and meaningful structure to web content. Tags like `<header>`, `<nav>`, `<main>`, `<article>`, and `<footer>` help these technologies navigate and interpret the content more effectively.
- **Example**:
```html
<nav aria-label="Main Navigation">
<ul>
<li><a href="#home">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
</nav>
```
##### Creating an Inclusive Web Experience
Semantic HTML is crucial for creating an inclusive web experience for all users, including those with disabilities. It ensures that content is accessible and usable by everyone, regardless of their physical or cognitive abilities.
- **Example**:
Using the `<main>` tag to denote the main content area helps screen readers skip repetitive content and navigate directly to the primary information.
##### Enhancing Usability for People with Disabilities
Proper use of semantic HTML enhances the usability of web pages for people with disabilities. It provides a structured and logical flow of content, making it easier for users to understand and interact with the webpage.
- **Example**:
```html
<article>
<header>
<h2>Inclusive Design</h2>
<p>Author: Jane Doe</p>
</header>
<section>
<h3>Accessibility Features</h3>
<p>Our website includes several accessibility features, such as keyboard navigation and screen reader support...</p>
</section>
<footer>
<p>Published on July 5, 2024</p>
</footer>
</article>
```
#### 4. Conclusion
Semantic HTML plays a vital role in enhancing both SEO and web accessibility. By using semantic tags, web developers can improve the indexing, ranking, and relevance of their content for search engines, while also making their websites more accessible and usable for all users, including those with disabilities. This approach not only boosts the website’s performance in search results but also contributes to a more inclusive and user-friendly web experience.
---
### Full Semantic HTML Example
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="An example of a semantic HTML document">
<title>Semantic HTML Example</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<!-- Header Section -->
<header>
<h1>My Awesome Website</h1>
<nav>
<ul>
<li><a href="#home">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#services">Services</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
</nav>
</header>
<!-- Main Content -->
<main>
<!-- Article Section -->
<article>
<header>
<h2>Welcome to My Website</h2>
<p>Published on: <time datetime="2024-07-05">July 5, 2024</time></p>
</header>
<section>
<h3>Introduction</h3>
<p>This website is an example of using semantic HTML to enhance SEO and accessibility. It includes various sections and articles that demonstrate the proper use of HTML5 tags.</p>
</section>
<section>
<h3>Content Section</h3>
<p>Here we provide some detailed information about the topic at hand. Semantic HTML helps search engines and assistive technologies understand the content better.</p>
</section>
<footer>
<p>Author: Jane Doe</p>
</footer>
</article>
<!-- Additional Article -->
<article>
<header>
<h2>Another Interesting Topic</h2>
<p>Published on: <time datetime="2024-06-30">June 30, 2024</time></p>
</header>
<section>
<h3>Overview</h3>
<p>This section provides an overview of another interesting topic relevant to our website's theme.</p>
</section>
<footer>
<p>Author: John Smith</p>
</footer>
</article>
</main>
<!-- Aside Section -->
<aside>
<h2>Related Links</h2>
<ul>
<li><a href="#link1">Link 1</a></li>
<li><a href="#link2">Link 2</a></li>
<li><a href="#link3">Link 3</a></li>
</ul>
</aside>
<!-- Footer Section -->
<footer>
<p>© 2024 My Awesome Website. All rights reserved.</p>
</footer>
</body>
</html> | kevin_kimtai | |
1,920,461 | 10 essential tips to supercharge VS Code and code faster | 95% of developers are just wasting VS Code’s potential. It has so many hidden gems that upgrade... | 0 | 2024-07-12T04:39:04 | https://dev.to/manojgohel/10-essential-tips-to-supercharge-vs-code-and-code-faster-5b0c | vscode, productivity, programming, webdev | 
95% of developers are just wasting VS Code’s potential.
It has so many hidden gems that upgrade your productivity and quality of life — but they’re not using them.
Use these 10 solid tips to gradually supercharge VS Code and code faster: with powerful extensions, little-known keyboard shortcuts, beautiful fonts & colors, and so much more.
# 1\. First things first
Starting with the essentials.
# Learn important keyboard shortcuts
You will code so much faster once you learn these
- Highlight code left & right with **Shift + Left / Right**
- Copy line without highlighting with **Ctrl + C**
- Move line up / down with **Alt + Up / Down**
- Delete line with Ctrl + K
- Close file with Ctrl + W
- Close all files with Ctrl + K, W
# Enable autosave
To save your files automatically.
I’ve talked about why **I dislike autosave** here, but it’s a great feature to stop the constant Ctrl + S’s.
# Set up outline view
The Outline View gives you a quick overview of all the symbols in your active file from the File Explorer Pane:
But I recommend you move to a separate pane to have more space:
# 2\. Set up source control
You need to set up integrations for Git to **easily track your changes**.
# Init repo with VS Code
Use the Source Control Pane to initialize a new local repo.
# Commit changes
You can quickly stage your files and press Ctrl + Enter anytime you need to commit:
# Install this extension
Now install the [GitLens extension](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=eamodio.gitlens) for even better integration:
GitLens will show you essential repo data and info on your current file — file history, commits, branches, and more.
Place the cursor on any line in the editor and GitLens will display info on the latest commit where the line was changed:
# 3\. Code faster with AI
GenAI has booming recently and now we have extensions that give you intelligent AI code completions as you type.
And IDE-integration chatbots, some of which use context from your codebase.
Great ones you can try;
1. [**GitHub Copilot**](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=GitHub.copilot): paid, $10/month
2. [**Coding Beauty Assistant**](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=coding-beauty.coding-beauty-assistant): free
3. [**Tabnine**](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=TabNine.tabnine-vscode): has free version, $12 per month
# 4\. Learn snippets to code faster
# [Emmet](https://archive.ph/o/ZtiT2/https://code.visualstudio.com/docs/editor/emmet)
With this I type much faster when working with JSX, CSS, HTML, and more.
One thing you’ll notice is how similar the abbreviations are to CSS selectors.
This is by design: Emmet syntax is inspired by CSS selectors.
# Install this extension
[JavaScript (ES6) code snippets](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=xabikos.JavaScriptSnippets): fully loaded with heaps of time-saving code snippets for JavaScript.
See how the `imp` and `imd` snippets quickly import the modules with the ES6 syntax:
# 5\. Install keymaps and feel at home
Priceless if you’re used to another code editor.
So if you’re coming from:
1. Vim: [Install this extension](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=vscodevim.vim)
2. Atom: [Install this extension](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=ms-vscode.atom-keybindings)
3. Visual Studio: [Install this extension](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=ms-vscode.vs-keybindings)
For example in Atom, you could easily press `A` and `Shift + A` to create a new file or a new folder.
Installing the Atom keymap instantly brings this shortcut to VS Code — no need to manually edit hotkeys:
# 6\. Start auto-linting code
You should install a linter to avoid errors and enforce style.
Use [ESLint](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint) to quickly find and fix problems in your JS code and easily avoid poor coding practices — like unused vars:
# 7\. Enable auto-formatting
Install [Prettier](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode) to automatically format your code with consistent formatting.
With _Format On Save_, Prettier instantly formats your code when you press Ctrl + S.
You can enable it in Settings:
# 8\. Set up debugging and testing
So VS Code already gives you fantastic debugging features.
Set breakpoints, inspect the call stack, watch variables and more.
# Testing
These extensions will make testing much easier:
- [Jest Runner](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=firsttris.vscode-jest-runner) for Jest testing
- [Mocha sidebar](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=maty.vscode-mocha-sidebar) for Mocha testing
Clicking _Run_ runs the particular test case with no need for the terminal.
# 9\. Use a more code-friendly font
If you look closely you’ll see that I’m NOT using the default Consolas font.
I’m using [Cascadia Code](https://archive.ph/o/ZtiT2/https://github.com/microsoft/cascadia-code) — a beautiful font from Microsoft with aesthetically pleasing code ligatures.
Ligatures:
[Fira Code](https://archive.ph/o/ZtiT2/https://github.com/tonsky/FiraCode) is another great one I’ve used:
You can easily change your font in settings:
# 10\. Beautify your editor with colorful themes
# Color themes
Set up a beautiful theme to easily modify the colors of all the aspects of the UI.
Including your code’s highlighting:
Some great themes I’ve used:
- [Atom One Light](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=akamud.vscode-theme-onelight) & [Atom One Dark](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=akamud.vscode-theme-onedark) — The main two I switch between.
- [One Dark Pro](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=zhuangtongfa.Material-theme)
- [Night Owl](https://archive.ph/o/ZtiT2/https://marketplace.visualstudio.com/items?itemName=sdras.night-owl)
You can change themes with the Settings icon:
# Icon themes
The way VS Code displays icons in the File Explorer Pane is pretty underwhelming:
That’s why you should install VS Code Icons and spice things up:
The distinct icons make it much easier to understand every file and the purpose they play in the codebase.
# Final thoughts
With all these new settings & extensions, you’re all set up to build rapidly and achieve your dev goals much faster. | manojgohel |
1,920,463 | Revolutionizing React Applications with AI Voice Integration and Conversational AI | Discover the transformative power of voicebots with Sista AI. Join the AI revolution today! 🚀 | 0 | 2024-07-12T04:45:41 | https://dev.to/sista-ai/revolutionizing-react-applications-with-ai-voice-integration-and-conversational-ai-2gd1 | ai, react, javascript, typescript | <h2>The Power of AI Voice Integration</h2><p>Voice user interfaces are reshaping technology interactions. Integrating voice commands in React apps can enhance user experiences and accessibility. Sista AI revolutionizes app interactions with its AI voice assistant, boosting engagement by 65% and supporting over 40 languages.</p><h2>Transforming User Interactions</h2><p>Sista AI's conversational AI agents deliver precise responses and understand complex queries. The platform enables hands-free UI interactions, automatic screen reading, and real-time data integration for dynamic user experiences.</p><h2>Enhancing User Experience</h2><p>With Sista AI, developers can create innovative applications that transform user interactions. The platform streamlines user onboarding, reduces support costs, and increases accessibility, making apps smarter and more intuitive.</p><h2>Unlocking the Potential of AI in ReactJS</h2><p>Integrating React with AI voice assistants and conversational AI provides dynamic and interactive applications. Sista AI's easy SDK supports all frameworks, ensuring quick setup and limitless scalability.</p><h2>Join the AI Revolution</h2><p>Embrace the future of technology with Sista AI. Transform your apps with advanced AI features today. Visit <a href='https://smart.sista.ai/?utm_source=sista_blog&utm_medium=blog_post&utm_campaign=Revolutionizing_React_Applications_with_AI_Voice_Integration_and_Conversational_AI'>Sista AI</a> and start your free trial. Experience the power of AI voice integration and conversational AI!</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 |
1,920,464 | Sizing a metering current transformer (CT) | Sizing a metering current transformer (CT) while taking the Instrument Security Factor (ISF of CT)... | 0 | 2024-07-12T04:46:26 | https://dev.to/electricalvolt/sizing-a-metering-current-transformer-ct-b3m | electrical, transformer | Sizing a metering current transformer (CT) while taking the Instrument Security Factor ([ISF of CT](https://www.electricalvolt.com/instrument-safety-factor-of-current-transformer/)) into account involves several steps. The goal is to ensure accurate measurement and protect the connected instruments under fault conditions. Here’s a step-by-step guide:
**## Step 1: Determine the Application Requirements**
**Rated Primary Current (Iᵣₚ)**: Determine the maximum current that the CT will need to measure under normal operating conditions.
**Rated Secondary Current (Iᵣₛ):** Commonly, this is 1A or 5A, depending on the metering equipment specifications.
**[Accuracy Class](https://www.electricalvolt.com/accuracy-class-of-current-transformer/):** Choose the accuracy class required for the application, e.g., Class 0.2, 0.5, etc., which indicates the maximum permissible error at rated conditions.
**## Step 2: Select the Appropriate CT Ratio**
The **[CT ratio](https://www.electricalvolt.com/ct-ratio-calculator-ct-ratio-calculation-formula/)** is chosen based on the maximum expected load current. For example, if the maximum load current is 1000A, a CT with a ratio of 1000:5 might be appropriate.
## **Step 3: Consider the Instrument Security Factor (ISF)**
ISF Specification: Check the ISF rating for potential CT candidates. A typical ISF might be 5 or 10, indicating the CT can handle up to 5 or 10 times the rated current without causing significant errors or damage.
Fault Current: Determine the maximum fault current that could occur in the system. This is typically provided by system designers or utility standards.
## **Step 4: Calculate the Maximum Allowable Fault Current**
Using the ISF, calculate the maximum current the CT can handle safely without exceeding its specified error margin:
Maximum Fault Current=ISF×𝐼𝑟𝑝
For example, if the CT's ISF is 5 and its rated primary current is 1000A, the maximum fault current the CT can handle safely is:
5×1000𝐴=5000𝐴
## **Step 5: Evaluate the CT's Performance Under Fault Conditions**
Ensure that the CT can handle the calculated fault current without saturation and while maintaining the accuracy required for protection and measurement.
## **Step 6: Verify the Burden**
The burden is the total impedance (in ohms) connected to the secondary of the CT, including the metering instruments and the connecting leads. Ensure that the CT can drive the required burden without exceeding its accuracy limits.
## **Step 7: Compliance with Standards**
Ensure that the selected CT complies with relevant standards (e.g., IEC 61869-2 or ANSI/IEEE C57.13) for metering CTs.
**Example**
Application Requirements:
Rated Primary Current (Iᵣₚ): 1000A
Rated Secondary Current (Iᵣₛ): 5A
Accuracy Class: 0.5
CT Ratio: 1000:5
ISF: 5
Maximum Fault Current Calculation:
ISF = 5
Iᵣₚ = 1000A
Maximum Fault Current = 5 × 1000A = 5000A
Verify Performance:
Ensure the CT can handle 5000A without significant error or damage.
Check the CT’s datasheet to confirm it can handle the calculated fault current.
Verify Burden:
Calculate the total burden and ensure it is within the CT’s specified limits.
Conclusion
By following these steps, you can size a metering CT that meets the application requirements while ensuring the safety and protection of connected instruments through appropriate consideration of the ISF. This ensures reliable operation and accurate measurement in both normal and fault conditions. | electricalvolt |
1,920,466 | Build a server with python flask | Introduction Flask is a lightweight and easy-to-use web framework for Python. It's great for... | 0 | 2024-07-12T04:49:59 | https://dev.to/suman_naskar_a1784f80bc3a/build-a-server-with-python-flask-115h | webdev, beginners, tutorial, python | **Introduction**
Flask is a lightweight and easy-to-use web framework for Python. It's great for beginners who want to build a simple server. In this guide, we'll walk you through the steps to create a basic Flask server.
**STEP-1**
Install flask
```bash
pip install flask
```
**STEP-2**
Create a new folder for your project. You can name it anything you like, for example, flask-server.
**STEP-3**
Inside your project folder, create a new file named app.py. This is where we will write our server code.
**STEP-4**
Write Your Flask Server Code
Open app.py in a code editor and write the following code:
```python
from flask import Flask
app = Flask(__name__)
@app.route('/')
def home():
return "Hello, World!"
if __name__ == '__main__':
app.run(debug=True)
```
**STEP-5**
Run your flask server
```bash
python app.py
```
| suman_naskar_a1784f80bc3a |
1,920,467 | LeetCode Day32 Dynamic Programming Part 5 | 518. Coin Change II You are given an integer array coins representing coins of different... | 0 | 2024-07-12T04:56:13 | https://dev.to/flame_chan_llll/leetcode-day32-dynamic-programming-part-5-1gna | leetcode, java, algorithms | # 518. Coin Change II
You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money.
Return the number of combinations that make up that amount. If that amount of money cannot be made up by any combination of the coins, return 0.
You may assume that you have an infinite number of each kind of coin.
The answer is guaranteed to fit into a signed 32-bit integer.
Example 1:
Input: amount = 5, coins = [1,2,5]
Output: 4
Explanation: there are four ways to make up the amount:
5=5
5=2+2+1
5=2+1+1+1
5=1+1+1+1+1
Example 2:
Input: amount = 3, coins = [2]
Output: 0
Explanation: the amount of 3 cannot be made up just with coins of 2.
Example 3:
Input: amount = 10, coins = [10]
Output: 1
Constraints:
1 <= coins.length <= 300
1 <= coins[i] <= 5000
All the values of coins are unique.
0 <= amount <= 5000
[Original Page](https://leetcode.com/problems/coin-change-ii/description/)
```
public int change(int amount, int[] coins) {
int[][] dp = new int[coins.length+1][amount+1];
for(int i=0; i<=coins.length; i++){
dp[i][0] = 1;
}
for(int i=1; i<= coins.length; i++){
for(int j=1; j<=amount; j++){
if(j<coins[i-1]){
dp[i][j] = dp[i-1][j];
}else{
dp[i][j] = dp[i-1][j] + dp[i][j-coins[i-1]];
}
}
}
// Arrays.stream(dp).map(Arrays::toString).forEach(System.out::println);
return dp[coins.length][amount];
}
```
```
public int change(int amount, int[] coins) {
int[] dp = new int[amount+1];
dp[0] = 1;
for(int i=0; i< coins.length; i++){
for(int j=coins[i]; j<=amount; j++){
dp[j] = dp[j] + dp[j-coins[i]];
}
System.out.println(Arrays.toString(dp));
}
return dp[amount];
}
```
# 377. Combination Sum IV
Given an array of distinct integers nums and a target integer target, return the number of possible combinations that add up to target.
The test cases are generated so that the answer can fit in a 32-bit integer.
Example 1:
Input: nums = [1,2,3], target = 4
Output: 7
Explanation:
The possible combination ways are:
(1, 1, 1, 1)
(1, 1, 2)
(1, 2, 1)
(1, 3)
(2, 1, 1)
(2, 2)
(3, 1)
Note that different sequences are counted as different combinations.
Example 2:
Input: nums = [9], target = 3
Output: 0
Constraints:
1 <= nums.length <= 200
1 <= nums[i] <= 1000
All the elements of nums are unique.
1 <= target <= 1000
Follow up: What if negative numbers are allowed in the given array? How does it change the problem? What limitation we need to add to the question to allow negative numbers?
```
public int combinationSum4(int[] nums, int target) {
int[] dp = new int[target+1];
dp[0] = 1;
for(int i=1; i<=target; i++){
for(int j=0; j<nums.length; j++){
if(nums[j] <= i){
dp[i] = dp[i] + dp[i-nums[j]];
}
}
// System.out.println(Arrays.toString(dp));
}
return dp[target];
}
```
| flame_chan_llll |
1,920,468 | Revolutionizing Laundry Services: A Comprehensive Look at Laundrywala | In today's fast-paced world, time is a precious commodity. Amid juggling work, family, and personal... | 0 | 2024-07-12T04:58:02 | https://dev.to/laundrywalaindia/revolutionizing-laundry-services-a-comprehensive-look-at-laundrywala-453b | laundrywala, webdev, javascript, programming |
In today's fast-paced world, time is a precious commodity. Amid juggling work, family, and personal commitments, household chores like laundry often become a burdensome task. Enter [Laundrywala](https://www.laundrywala.in/) – a modern, innovative solution designed to transform the way we handle our laundry. This article explores how Laundrywala is setting new standards in convenience, quality, and customer satisfaction in the laundry service industry.
Convenience at Your Doorstep
One of the standout features of Laundrywala is its door-to-door service. Gone are the days of lugging heavy laundry bags to the nearest laundromat or dry cleaner. With Laundrywala, scheduling a pickup is as simple as a few clicks on your smartphone or a quick phone call. Their prompt and professional team arrives at your doorstep, collects your laundry, and delivers it back to you, clean and fresh, within a stipulated time frame.
This level of convenience is particularly beneficial for busy professionals, families, and individuals with mobility issues. Whether you need a regular weekly service or a one-time emergency wash, Laundrywala’s flexible scheduling accommodates your unique needs.
Unmatched Quality Care
At Laundrywala, quality is paramount. They employ state-of-the-art washing and drying techniques to ensure your clothes receive the best possible care. Their use of eco-friendly detergents not only ensures a thorough clean but also preserves the integrity and longevity of your garments. Whether it's delicate fabrics, everyday wear, or specialty items, Laundrywala handles each piece with meticulous attention.
The team at Laundrywala is trained to identify the best cleaning methods for different types of fabrics, ensuring that your clothes are not just clean, but also look and feel great. This attention to detail sets Laundrywala apart from traditional laundry services.
Diverse Range of Services
Laundrywala offers a comprehensive suite of services tailored to meet various laundry needs:
Regular Laundry: This includes washing, drying, and folding. Perfect for your daily wear and household linens.
Dry Cleaning: Ideal for delicate and high-maintenance fabrics that require special care.
Ironing: Professional ironing services that ensure your clothes are wrinkle-free and ready to wear.
Commercial Laundry: Customized solutions for businesses such as hotels, restaurants, and spas, ensuring they maintain the highest standards of hygiene and presentation.
This wide range of services means that whether you're a busy individual or a business owner, Laundrywala has a solution for you.
Affordable and Transparent Pricing
Laundrywala’s pricing structure is competitive and transparent, offering great value for money. They believe in fair pricing without hidden costs, making high-quality laundry services accessible to a broad audience. By providing detailed price lists and clear communication, Laundrywala ensures that customers know exactly what to expect, fostering trust and loyalty.
Commitment to Sustainability
In an era where environmental consciousness is critical, Laundrywala stands out with its commitment to sustainability. They use eco-friendly detergents and energy-efficient machines, significantly reducing their environmental footprint. By choosing Laundrywala, customers can feel good about reducing their environmental impact while enjoying top-notch laundry services.
Exceptional Customer Service
Customer satisfaction is at the heart of Laundrywala’s operations. Their dedicated customer service team is always ready to assist with any queries or special requests, ensuring a smooth and pleasant experience. Whether you have specific instructions for your laundry or need assistance with scheduling, the team is responsive and attentive to your needs.
How Laundrywala Works
The process of using Laundrywala is straightforward and user-friendly:
Schedule a Pickup: You can schedule a pickup via their website, app, or a phone call.
Pickup and Processing: A team member arrives at your location, collects your laundry, and takes it to their facility for processing.
Quality Cleaning: Your clothes are washed, dried, and folded or ironed as per your request.
Delivery: The cleaned laundry is delivered back to your doorstep at a convenient time.
This streamlined process ensures that you can enjoy clean clothes with minimal effort on your part.
Customer Testimonials
Customers who have experienced Laundrywala’s services often become repeat clients, praising the company for its reliability, quality, and exceptional customer care. Testimonials frequently highlight the convenience of the service, the professionalism of the staff, and the pristine condition of the cleaned clothes.
Here are a few snippets from satisfied customers:
“Laundrywala has been a lifesaver for my busy schedule. The convenience of their pickup and delivery service is unmatched.”
“I was impressed with the quality of care my clothes received. They looked and felt brand new!”
“As a business owner, Laundrywala’s commercial laundry service has helped me maintain high standards of cleanliness and presentation for my hotel.”
Conclusion
Laundrywala is more than just a laundry service; it's a comprehensive lifestyle solution designed to simplify and enhance your daily routine. By offering unparalleled convenience, top-quality care, a diverse range of services, and a commitment to sustainability, Laundrywala is setting a new benchmark in the laundry service industry. Experience the difference with Laundrywala and transform your laundry routine into a hassle-free, efficient, and enjoyable process. | laundrywalaindia |
1,920,469 | The Summer's Largest Web3 Online Competition 🚀 | July 1 - August 24, 2024 | | Hey Builders! We’re excited to invite you to The Next Top Blockchain Startup Competition, one of... | 0 | 2024-07-12T04:59:42 | https://dev.to/crypto_3942-/the-summers-largest-web3-online-competition-july-1-august-24-2024--5hcb | web3, blockchain, cryptocurrency, startup |
Hey Builders!
We’re excited to invite you to [The Next Top Blockchain Startup Competition](https://topblockchainstartup.com/), one of this summer's biggest online hackathons!
📅 When: July 1 - August 24, 2024
💸 Prize Pool: Over $250,000+
🌐 Reach: Over 500,000 people
🎓 Featuring participants from: Harvard, MIT, Stanford, and more
💻 Already Registered: 300+ developers
Join us for this month-long competition designed to bring out the best in blockchain innovation. You can choose from six different tracks, including AI, Cybersecurity, Interoperability, and more!
Some of our prestigious partners and mentors include:
Mastercard
JP Morgan
Oracle
Robinhood
Super Shyft
EnjinStarter
These industry leaders will be on the lookout for new talent and partnership opportunities. This is your chance to connect with key players, learn from the best, and showcase your groundbreaking ideas.
Whether you're a seasoned pro or just getting started in the web3 space, this hackathon is for you. Don’t miss out on the opportunity to make your mark and potentially kickstart your career in blockchain.
Sign Up Now to secure your spot!
Let’s innovate and build the future together! 🌟
For more details, visit https://topblockchainstartup2024.devpost.com/ and secure your spot today!
| crypto_3942- |
1,920,470 | Using Postman: Leveraging Response Data For Seamless API Requests | Postman Use Response in Next Request Postman is a powerful tool for testing APIs, and it allows you... | 0 | 2024-07-12T05:04:52 | https://dev.to/saumya27/using-postman-leveraging-response-data-for-seamless-api-requests-4lp8 | postman | **Postman Use Response in Next Request**
Postman is a powerful tool for testing APIs, and it allows you to use data from the response of one request in subsequent requests. This can be particularly useful for passing authentication tokens, IDs, or other data between requests. Here’s a step-by-step guide on how to implement this feature, often referred to as “postman use response in next request.”
**Summary**
By capturing data from one request and using it in subsequent requests, Postman allows for powerful and flexible API testing workflows. This method, often referred to as “[postman use response in next request](https://cloudastra.co/blogs/postman-use-response-in-next-request),” can be used to handle authentication tokens, dynamic data, and more, streamlining your API testing process. | saumya27 |
1,920,471 | 10 Feature Flag Tools to Confidently Release New Features | Feature flags offer an excellent way to quickly turn off and on product changes by enabling you to... | 0 | 2024-07-12T05:05:18 | https://www.infracloud.io/blogs/feature-flag-tools-to-confidently-release-new-features/ | featureflag, cicd, featureflagsplatform, devops |
Feature flags offer an excellent way to quickly turn off and on product changes by enabling you to remove and add the code in the software quickly. Marketers or product managers can choose a time and moment to make a feature or function live to win that aha moment.
The feature flags are helpful to various departments, including marketing, product, testing, CROs, and development. The number of feature flags can rise quickly as the team realizes their helpfulness and begins to utilize them. To avoid the mismanagement it may create, you need feature flag platforms. A comprehensive space where you can place all your feature flags and manage, modify, and delete them.
Finding a tool that fits the exact needs and requirements of developers, marketers, and product managers can be challenging. But don’t worry; we have done the heavy lifting for you. In this article, we have curated a list of the 10 feature flag tools and their best features. We've also covered the common functionalities you should look for when selecting tools for your team.
## What are feature flag tools?
A feature flag tool, also known as a feature management or feature toggle tool, is a software or platform designed to facilitate the implementation, management, and control of feature flags in software applications. These tools provide a centralized interface or API that allows developers and teams to easily create, deploy, and monitor feature flags without directly modifying the underlying codebase.
To understand feature flags tools, let’s summarize what feature flags are first.
Feature flags, also known as feature toggles or feature switches, are software development techniques used to enable or disable certain features or functionalities in an application or system. They allow developers to control the release and availability of specific features to different user segments or environments without the need for code deployments or separate branches.
## Do feature flag platforms help?
Yes. Feature flag platform comes with a range of features, including centralized flag management, an easy-to-use interface, user segmentation, traffic allocation, and integration with other tools to simplify the process of using feature flags in software development.
Feature flag platform enables you to:
- **Gradually roll out new features**: Release features to a small percentage of users and gradually increase rollout for feedback and risk mitigation.
- **Perform A/B testing**: Run experiments exposing different feature variations to user segments to determine optimal performance.
- **Enable feature toggling**: Dynamically enable or disable features without code changes for flexible control over feature availability.
- **Rollback problematic features**: Quickly deactivate features causing issues and revert to a stable state to maintain system stability.
- **Trunk-based development**: Merge the code to the main branch without releasing it to production.
- **Personalize user experiences**: Customize user experiences based on attributes, roles, or preferences to enhance satisfaction and engagement.
For a non-tech person, doing it all using CLI and code could be confusing & challenging. Plus, as you continue to create and use, you will have many feature flags, which could lead to mismanagement. Having a feature flag tool helps you there.
## Popular feature flag tools
InfraCloud DevOps, platform engineering, and software development teams extensively use feature flags. So, we asked them which tools they preferred and why.
We uncovered many feature flag tools, both open source and commercial. The ‘best’ depends on the project requirements and engineers' preferences. However, there are still basic features that a feature flag software must have. Here, we have shortlisted feature flag software covering fundamental features and advanced capabilities for specific use cases.
For now, let’s see the best feature flag tools:
1. FeatureHub
2. Unleash
3. Flipt
4. Growth Book
5. Flagsmith
6. Flagd
7. LaunchDarkly
8. Split
9. ConfigCat
10. CloudBees
Let's discuss each of them in detail.
### 1. FeatureHub
<p align="center">(Image src: <a href="https://www.featurehub.io/"> FeatureHub</a>) </p>
[FeatureHub](https://www.featurehub.io/) is a cloud-native feature flag platform that allows you to run experiments across services in your environment with a user-friendly interface — FeatureHub Admin Console. It comes with a variety of SDKs so you can connect FeatureHub with your software. Whether you are a tester, developer, or marketer, you can control all the feature flags and their visibility in any environment.
If you are looking for a tool that focuses more on feature and configuration management, FeatureHub may be the better choice. Its microservices architecture allows for greater scalability and extensibility, and it provides advanced features such as versioning, templates, and the ability to roll back changes.
Features of FeatureHub:
- Open source version available
- SaaS in beta version
- Google Analytics/RBAC/AB Testing
- Supported SDK included Python, Ruby, and Go
- OpenFeature is in process
- SSO support
- Community support & documentation
- Dedicated support to SaaS users
### 2. Unleash
<p align="center">(Image src: <a href="https://github.com/Unleash/unleash"> Unleash</a>) </p>
With 10M+ Docker downloads, [Unleash](https://www.getunleash.io/) is a popular and widely used open source feature flag platform. As it supports Docker images, you can scale it horizontally by deploying it on Kubernetes. The platform's intuitive interface and robust API make it accessible and flexible for developers, testers, and product managers alike.
However, the open source version lacks several critical functions, such as SSO, RBAC, network traffic overview, and notifications. However, you can integrate these features using other open source solutions.
If you are looking for a tool that focuses more on feature flagging and targeting, then Unleash might be the better choice for you. Unleash provides more advanced capabilities for user targeting, including the ability to target users based on custom attributes and the ability to use percentage rollouts. Additionally, it has a wider range of integrations with popular development tools, including Datadog, Quarkus, Jira, and Vue.
Features of Unleash:
- Open source version available
- AB Testing/RBAC/Targeted Release/Canary release
- SDK support for Go, Java, Node.js, PHP, Python etc
- OpenFeature supported
- Community support and documentation
- Premium support for paid users
- Observability with Prometheus
### 3. Flipt
<p align="center">(Image src: <a href="https://www.flipt.io/"> Flipt</a>) </p>
[Flipt](https://www.flipt.io/) is a 100% open source, self-hosted feature flag application that helps product teams to manage all their features smoothly from a dashboard. You can also integrate Flipt with your GitOps workflow and manage feature flags as code. With Flipt, you get all the necessary features, including flag management and segment-wise rollout. The platform is built in the Go language and is optimized for performance. The project is under active development with a public roadmap.
Features of Flipt:
- Only open source version
- No SaaS
- Support for REST & GRPC API
- Native client SDKs available in Go, Ruby, Java, Python etc.
- OpenFeature supported
- SSO with OIDC & Static Token
- Observability out of the box with Prometheus & OpenTelemetry
### 4. GrowthBook
<p align="center">(Image src: <a href="https://www.growthbook.io/"> GrowthBook</a>) </p>
[GrowthBook](https://www.growthbook.io/) is primarily a product testing platform for checking users' responses to features. It is relatively new, and the SaaS version is much more affordable than other SaaS-based feature flag platforms. SDKs from GrowthBook are available in all major languages and are designed not to interfere with feature flag rendering.
You can easily create experiments using GrowthBook's drag-and-drop interface. Integrations with popular analytics tools, such as Google Analytics and Mixpanel, make tracking experiments easier for better results. If you run many A/B experiments and do not want to share your data with 3rd party apps, GrowthBook could be an amazing option as it pulls the data directly from the source.
Features of GrowthBook:
- Open source version available
- SaaS version available
- A/B Testing/unlimited projects
- SDK support for React, PHP, Ruby, Python, Go, etc
- Observability via Audit Log
- Community support and documentation
### 5. Flagsmith
<p align="center">(Image src: <a href="https://github.com/Flagsmith/flagsmith"> Flagsmith</a>) </p>
[Flagsmith](https://www.flagsmith.com/) is another open source solution for creating and managing feature flags easily across web, mobile, and server-side applications. You can wrap a section of code with a flag and then use the Flagsmith dashboard to toggle that feature on or off for different environments, users, or user segments.
Flagsmith offers segments, A/B testing, and analytics engine integrations that are out of the box. However, if you want real-time updates on the front end, you have to build your own real-time infrastructure. One of the best parts of the Flaghsmith is the Remote config, which lets you change the application in real-time, saving you from the approval process for the new features.
Features of Flagsmith:
- Open source version available
- SaaS product available
- A/B Testing/RBAC/Integrations with tool
- SDK support for RUBY, .NET, PHP, GO, RUST, etc
- OpenFeature support
- HelpDesk for community support
- Docker/Kubernetes/OpenShift/On-Premise (Paid)
### 6. Flagd
<p align="center">(Image src: <a href="https://github.com/open-feature/flagd"> Flagd</a>) </p>
[Flagd](https://flagd.dev/) is a unique feature flag platform. It does not have a UI, management console, or persistence layer and is completely configurable via a POSIX-style CLI. Due to this, Flagd is extremely flexible and can be fit into various infrastructures to run on various architectures. It supports multiple [feature flag sources called syncs](https://flagd.dev/concepts/syncs/) like file, http, gRPC, Kubernetes custom resource, and has ability to merge those flags.
Features of Flagd:
- Only open source version is available
- Progressive roll outs
- Works with OpenFeature SDK
- Technical documentation
- Lightweight and flexible
### 7. LaunchDarkly
<p align="center">(Image src: <a href="https://launchdarkly.com/"> LaunchDarkly</a>) </p>
[LaunchDarkly](https://launchdarkly.com/) is a good entry point for premium feature management tools as it is not expensive comparatively but offers many useful features. It enables you to easily create, manage, and organize your feature flags at scale. You can also schedule approved feature flags to build a custom workflow.
One of the features of LaunchDarkly is Prerequisites, where you can create feature flag hierarchies, where the triggering of one flag unlocks other flags that control the user experience. This way, you can execute multiple feature flags with one toggle. With multiple integration options available, including API, SDK support, and Git tools, you can automate various tasks in LaunchDarkly.
If you are looking for paid software with quality support and a comprehensive set of features, LaunchDarkly could be your option.
Features of LaunchDarkly:
- No open source version is available
- SaaS product only
- A/B Testing/Multiple variants testing
- SDK support for Go, Gatsby, Flutter, Java, PHP etc
- OpenFeature supported
- Academy, blogs, tutorials, guides & documentation
- Live chat support
### 8. Split
<p align="center">(Image src: <a href="https://www.youtube.com/watch?v=sRRVsptOHqQ"> Split</a>) </p>
[Split](https://www.split.io/) brings an impressive set of features and a cost-effective solution for feature flag management. It connects the feature with engineering and customer data & sends alerts when a new feature misbehaves. With Split, you can easily define percentage rollouts to measure the impact of features.
There is no community support, but the documentation is detailed and organized. Once you move ahead of the slight learning curve, you can easily organize all your feature flags at scale with Split.
Features of Split:
- No open source version
- SaaS-based platform
- A/B Testing/Multi-variant testing/Dimension analysis
- SDK support for Go, Python, Java, PHP etc
- OpenFeature supported
- Blogs, guides & documentation
- No on-prem solution
- Free plan available
### 9. ConfigCat
<p align="center">(Image src: <a href="https://www.youtube.com/watch?v=AjHySwLf0DY"> ConfigCat</a>) </p>
[ConfigCat](https://configcat.com/) enables product teams to run experiments (without involving developer resources) to measure user interactions and release new features to the products. You can turn the features ON/OFF via a user-friendly dashboard even after your code is deployed.
ConfigCat can be integrated with many tools and services, including Datadog, Slack, Zapier, and Trello. It provides open source SDKs to support easy integration with your mobile, desktop application, website, or any backend system. One fantastic feature of this software is Zombie Flags – which identifies flags that are not functional or have been used for a long time and should be removed.
Features of ConfigCat:
- No open source version is available
- SaaS product
- % rollouts, A/B testing/variations.
- SDK support for Go, Java, Python, PHP, Ruby etc
- OpenFeature supported
- Blogs, documentation & Slack community support
### 10. CloudBees
<p align="center">(Image src: <a href="https://www.cloudbees.com/capabilities/feature-management"> CloudBees</a>) </p>
[CloudBees](https://www.cloudbees.com/) is not a dedicated feature flag management platform, but it allows you to manage feature flag permissions and automate cleanup easily. While having a dashboard helps, CloudBees also offers bidirectional configuration as code with GitHub to edit flags in your preferred environments.
The dashboard's sleek and intuitive design makes it easier for developers and DevOps teams to use and leverage its functionalities. However, the software has so many features that it could be a slight challenge to learn all of them.
Features of CloudBees:
- No open source version is available
- SaaS product
- A/B Testing/Multiple variant testing
- SDK support for Java, Python, C++, Ruby etc
- OpenFeature supported
- Blogs, video tutorials, & documentation
## Quick comparison of the feature flag tools
Open the sheet to have a [comparison of feature flag tools](https://docs.google.com/spreadsheets/d/17LCvDlitKlR5d16T-bAkHXhAnEZPKPBBzmH5FruZMwk/) in a glance.
<div style="text-align: center"><iframe src="https://docs.google.com/spreadsheets/d/e/2PACX-1vTInmh_6ExPT9cGo6YXZYsva9RuJ6xHqbYQ5hNVYTj-zciAZDOgDZyH6x-CBnP_WU_NbDCspnLCTs2o/pubhtml?gid=2031399878&single=true&widget=true&headers=false" frameborder="0.5" width="700" height="400" scrolling="no"></iframe></div>
## What should you look for in a feature flag tool?
There are so many feature flag tools, but these are the features you must look for when picking a platform.
### 1. Community support
Proper support is crucial to overcoming the initial onboarding challenges, whether for an open source or proprietary product. Some OSSs have an extensive community, documentation, blogs, and user-generated content to help and educate the next generation of users. The OSS product's creators, maintainers, and experts often offer commercial support. For example, at InfraCloud, we offer [Linkerd support](https://www.infracloud.io/linkerd-consulting-support/), [Prometheus support](https://www.infracloud.io/prometheus-commercial-support/), and [Istio support](https://www.infracloud.io/istio-support/) because our engineers are proficient in these technologies.
For closed source products, you can get video tutorials, blogs, documentation, and live chat, and most importantly, you can raise a ticket and solve your problem quickly. Not having a proper support channel can leave you in the middle during an emergency. So, analyze your requirements to see what kind of support your team needs, whether they can do it with the help of documentation or need hand-holding.
### 2. Integration
It is critical for the successful feature flag process that the programming languages used to develop the products are well supported by the feature flag platform. If the language is not supported, enough resources should be available to connect your product and feature flag platform.
Going with platforms that support OpenFeature could be a good solution. As OpenFeature provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool. You would not have to change the application code much in case you plan to change it later.
In the list, I mentioned the feature flag platforms that support the most common and popular development languages and are OpenFeature friendly. When selecting a feature flag platform, don’t forget to analyze your tech stack to find whether the feature flag is compatible. Otherwise, a major chunk of time might go into developing the integrations between the technology used and the feature flag platform.
### 3. 3rd Party Apps
What if you could view and monitor feature flags and approval requests from your team's Slack workspace or use Terraform to configure and control the feature flags?
All this and more is possible if the feature flag offers integrations. You can bring integrations by wrangling scripts and making an automation process that works on triggers. But here, we picked the software with native integration abilities to streamline & automate the feature flag operations further.
### 4. Easy-to-use UI
Feature flags are not always used by developers. Often, product marketers like to have control over the lever that launches the features to the public. In case of any issue, marketers and product managers can quickly kill the feature that makes the product unstable from the platform without waiting for the developer.
So, having an easy-to-use user interface is a key characteristic when selecting a feature flag tool. Some open source feature flag platforms have a rudimentary design covering basics, and some are fully-fledged platforms with incredible UX and tutorials at every corner.
In the list, we covered the software that has a usable UI.
### 5. Testing & reporting
New features can be tested using the feature flags. Sophisticated feature flags tools come with various testing methods, including A/B/n and blue-green deployment strategy. Functions like setting up variable and controlled factors, allocating traffic, and insights from the result are extremely helpful in delivering a product feature confidently.
With feature flag tools, you can segment the users and roll the features accordingly to test the initial responses. The software also comes with dashboards to see the results of the experiments. You can view all the requests and how users spend time using the software with newly released features.
These tools include testing and reporting features, making it easy to run experiments and make data-backed decisions.
## FAQs related to feature flag tools
### What are the different types of feature flags?
There are several types of feature flags commonly used in software development:
- **Boolean flags**: These flags are the simplest feature flags based on a true/false value. They enable or disable a feature globally across all users or environments.
- **Percentage rollouts**: Also known as "gradual rollouts" or "canary releases," these flags allow features to be gradually released to a percentage of users. For example, a feature can be enabled for 10% of users initially, then gradually increased to 25%, 50%, etc.
- **User segmentation flags**: These flags enable features for specific user segments based on predefined criteria such as user attributes, roles, or subscription levels. They allow targeted feature releases to specific groups of users.
- **Feature toggle flags**: Feature toggle flags provide more granular control over the behavior of a feature. They allow different variations or configurations of a feature to be activated or deactivated dynamically.
### Who uses feature flags?
Software development teams, including developers, product managers, and DevOps engineers, widely use feature flags. They are particularly beneficial in agile and continuous delivery environments, where iterative development, experimentation, and frequent releases are essential.
### What are feature flags' limitations?
While feature flags offer numerous advantages, they also have some limitations to consider:
- **Increased complexity**: Introducing feature flags adds complexity to the codebase and requires careful management to avoid technical debt and maintainability issues.
- **Performance overhead**: Feature flags introduce conditional checks that can impact performance, especially when numerous flags are evaluated at runtime.
- **Flag proliferation**: Over time, the number of feature flags may grow, leading to potential confusion, maintenance challenges, and increased technical debt.
- **Testing effort**: Feature flags require additional testing efforts to ensure the functionality of different flag combinations and variations.
### What is the difference between a feature gate and a feature flag?
The terms "feature gate" and "feature flag" are often used interchangeably, but they can have slightly different connotations. A feature gate typically refers to a more granular control mechanism that checks whether a specific user has access to a particular feature, usually based on permissions or user roles. On the other hand, a feature flag is a broader concept encompassing various flags used to control feature availability, behavior, or rollout.
### What is a feature flag rollback?
Feature flag rollback refers to deactivating a feature flag and reverting the system's behavior to a previous state. It is typically used when a feature causes unexpected issues, performance problems, or undesirable outcomes. The system can revert to a stable state by rolling back a feature flag until the underlying issues are addressed.
### What is feature flag hygiene?
Feature flag hygiene refers to best practices and guidelines for managing feature flags effectively. It involves maintaining a clean and manageable set of flags by periodically reviewing and removing obsolete or unused flags.
## Final words
Finding the best feature flag platform isn’t easy, especially when you have many great options. While all these tools are great, you must factor in your requirements to find the best fit.
We hope this list helps you find the best platform to manage feature flags. This article is developed with the contribution of [Faizan](https://www.linkedin.com/in/faizanfahim/), [Sagar](https://www.linkedin.com/in/sagar-parmar-834403a6/), [Bhavin](https://www.linkedin.com/in/bhavin192/), and [Sudhanshu](https://www.linkedin.com/in/sudhanshu212/). You can reach out to any of them if you need answers to any of your doubts.
Looking for help with building your DevOps strategy or want to outsource DevOps to the experts? Learn why so many startups & enterprises consider us as one of the [best DevOps consulting & services companies](https://www.infracloud.io/devops-consulting-services/).
| sudhanshu456 |
1,920,472 | maunha phodep | Nhà phố là loại hình nhà ở phổ biến tại các đô thị của Việt Nam. Trong năm 2024, thiết kế nhà phố... | 0 | 2024-07-12T05:05:28 | https://dev.to/maunhaphodep/maunha-phodep-3759 | Nhà phố là loại hình nhà ở phổ biến tại các đô thị của Việt Nam. Trong năm 2024, thiết kế nhà phố tiếp tục xu hướng hiện đại, tối giản nhưng vẫn đảm bảo công năng sử dụng và thẩm mỹ.
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| maunhaphodep | |
1,920,473 | Getting Into DevSecOps | What is DevSecOps? This is basically building security in the DevOps process. DevOps is... | 0 | 2024-07-12T05:07:15 | https://dev.to/wmramadan/getting-into-devsecops-2c4h | devsecops, cybersecurity, security, devops | ## What is DevSecOps?
This is basically building security in the DevOps process. DevOps is the combination of a Development with Operations; these were once different disciplines which now have fused into one. Now we add security to that mixture, and we get DevSecOps. This brings concepts like SAST (Static Application Security Testing), DAST (Dynamic Application Security Testing), RASP (Runtime Application Self Protection), IAST (Interactive Application Security Testing).
## So Why is This Important?
With today's abundance in web applications, organizations have now become mindful of protecting these applications. A lot of these organizations these days have had major data leaks. While the developer once only worried about business logic now there are other considerations taken into account such as putting boundary checks on for loops, sanitizing inputs, input validation and so forth.
## What Tools Are Needed?
- Cloud (AWS, Azure, GCP)
- CI/CD (Jenkins, GitLab, Travis CI, Circle CI, GitHub Actions)
- Scripting (Bash, Python)
- Configuration Management (Ansible, Puppet, Chef, Packer)
- SAST Tools (SonarQube)
- DAST Tools (OWASP ZAP)
- Container Security Tools (Sysdig, Trivy)
## What Are Some Books for Learning?
- Phoenix Project by Gene Kim
- Agile Application Security by Laura Bell, Michael Brunton-Spall, Rick Smith & Jim Bird
- DevOpsSec by Jim Bird
- Hands-On Security in DevOps by Tony Hsu
## What Certifications to Go For?
- CompTIA Certification
- AWS/Azure/GCP Certification
- SANS Certification
- CISSP Certification
After all of this, it will not make you an expert but will give you the knowledge you need to get there. Security is a never-ending battle!
| wmramadan |
1,920,475 | Understanding Web App Testing: A Detailed Guide for Developers and QA Teams | We live in a world of the Internet and Web applications are a part of it. Hundreds of websites are... | 0 | 2024-07-12T05:09:16 | https://dev.to/morrismoses149/understanding-web-app-testing-a-detailed-guide-for-developers-and-qa-teams-pap | webapptesting, testgrid | We live in a world of the Internet and Web applications are a part of it. Hundreds of websites are being developed daily. And no matter how well-coded the site is, it will have some bugs. The possibility of potential bugs arises with each line of code that is being written. That is why it’s important to get those web applications tested.
The earlier you find the bug, the better because the cost of fixing bugs increases with time.
This blog is a detailed guide to web application testing. Here you’ll be learning what exactly “web app testing” is and its importance. We’ll also discuss different types of web app testing, challenges, future trends, popular web app testing tools, and more.
## What is Web App Testing?
Web app testing evaluates a web application (step by step) to ensure it functions correctly and is secure against potential threats. HTML, CSS, and JavaScript are the core technologies on which a website is built. These 3 core technologies are further integrated with other technologies like Angular, React, Vue, Sass, Less, and more.
The domain of building and testing websites is vast. If you want to attract new customers, it’s important to provide bug-free software that will eventually increase your overall revenue generation.
## Benefits of Web App Testing
- Ensures the web app meets quality standards and provides a bug-free experience
- A well-tested web app offers a smooth, intuitive user experience, leading to higher user satisfaction
- Identifies vulnerabilities and protects against security breaches
- Ensures the web app performs well under different conditions and loads
- Verifies the app works across various browsers, devices, and operating systems
- Early detection of issues reduces the cost and effort needed to fix them later in the development cycle
## Types of Web App Structures
Depending on the type of web application, developers might choose different structural approaches to best suit their needs. Here are three common types:
**Single Page Applications:**
Single-page applications are web apps that operate within a single web page. All the necessary code—HTML, JavaScript, and CSS is loaded once. The rest of the content updates dynamically as we keep interacting with the app. This means the app doesn’t need to reload the entire page, but fetches necessary data and updates the view.
**Multiple Page Applications**: Multiple-page applications are traditional types of web applications where the app consists of multiple pages. MPAs offer better security compared to SPAs because much of the logic and data processing occurs on the server rather than the client. Examples of MPAs include e-commerce sites, news websites, and corporate websites.
Progressive Web Apps: Progressive Web Apps combines the best features of web and mobile apps. They can work offline, send push notifications, and be easily installed on your home screen. If you’re testing a PWA, make sure these features work seamlessly across different devices and scenarios.
## Types of Web App Testing
When you’re making sure a web app works perfectly, there are several types of testing you need to do. Here’s a rundown in simple terms:
Functional Testing: Web app testing checks all the features, from basic user interactions like form submissions and navigation to complex backend processes. A single malfunctioning feature can lead to frustration and loss of credibility. That’s where [functional testing](https://testgrid.io/blog/unpacking-functional-testing/) comes into use. It ensures that each application part works as expected, keeping the site user-friendly.
**Usability testing**: A subset of web app testing that focuses on the application’s user interface and overall user experience. It identifies any issues that may not allow us to effectively interact with the app. Developers address these issues to ensure that the application is easy to use and navigate.
**Performance testing**: Web app testing also involves evaluating the application’s performance under various conditions. It checks whether the application can handle expected user loads without compromising on speed or responsiveness. Load testing (a part of web testing) checks the app’s behavior under normal conditions, and stress testing determines how the app performs under extreme conditions. This prevents slow load times, crashes, and other issues that can drive users away.
**Security testing**: This is about finding and fixing vulnerabilities that hackers could exploit. You check if the app protects user data and prevents unauthorized access. Security testing checks for common security issues such as SQL injection, cross-site scripting (XSS), and insecure authentication methods.
**Compatibility testing**: This is done to test if your app works well on different browsers, devices, and operating systems. You want to make sure that whether someone uses Chrome on a laptop or Safari on an iPhone, it looks and works the same.
## Difference Between Automated and Manual Web Testing
**Automated Testing**: Automated testing uses tools and scripts to perform tests automatically. With the help of automated web app testing, you can execute repetitive and time-consuming tests quickly. It provides consistent results, reduces human error, and handles large-scale tests that are impractical to deal with manually. It also reduces long-term costs by automating regression tests.
Apart from several advantages of automated web app testing, it has some limitations you should be aware of. It requires initial investment in tools and script development. It also needs regular maintenance to stay effective.
**Manual Testing**: Manual testing requires human testers to execute test cases without automation tools. Manual testing is crucial for exploratory testing. It’s where testers explore the application to find defects not covered by automated tests. Usability Testing checks the user experience and interface, whereas Ad-hoc Testing conducts informal tests based on the tester’s intuition and experience.
Manual testing is flexible and adaptable but can be time-consuming and prone to human error.
## Web App Testing Process and Lifecycle
Understand what you need: First, you need to understand what the web application is supposed to do. This involves gathering all the requirements and identifying the key features that need testing. Think of it as listing everything the app should offer and how it should behave.
**Test planning**: Next, you create a detailed test plan. Test planning involves deciding what tests to run, who will conduct the tests, what tools and resources will be needed, and setting a timeline for the testing process. This plan acts as a roadmap, guiding the entire testing process.
**Test case development**: After planning, you develop test cases. These are detailed instructions that describe how to test each feature and functionality of the application. Test cases ensure that every aspect of the app is thoroughly checked. It’s like creating a checklist to ensure nothing is missed.
**Test environment setup**: Before running the tests, you need to set up the test environment. This means preparing the hardware and software needed for testing, and ensuring everything mimics the production environment as closely as possible. This setup is crucial for getting accurate and reliable test results.
**Test execution**: With everything set up, you start executing the test cases. This step involves running the tests and recording the results. You compare the actual outcomes with the expected outcomes to identify issues or bugs of any kind. This is where you find out if the app functions as intended.
**Defect reporting and tracking**: The bugs or issues found during testing need to be reported and tracked. This involves logging the defects, describing the problems, and prioritizing them for resolution. The development team then works on fixing these defects, and testers retest the fixes to ensure everything is resolved.
**Test Closure**: Once all tests have been executed and all defects resolved, the final step is test closure. Here, you review the entire testing process, document what was tested, the issues found and fixed, and any lessons learned. A test summary report is created and shared with stakeholders, confirming that the web app is ready for release.
## Popular Web Application Testing Tools
When it comes to web app testing, having the right tools can make a big difference. Here are some of the most popular web application testing tools used by developers and QA teams:
**Selenium**: Selenium is one of the most widely used web app testing frameworks. It supports multiple programming languages like Java, Python, and C#. It can run tests across different browsers and platforms. Selenium is great for regression testing and a staple in many toolkits.
**Cypress**: Cypress is a JavaScript-based end-to-end testing framework. It is known for its fast setup and easy-to-use capability. Cypress provides real-time feedback and can be used to test the user interface and interactions.
**JMeter**: Apache JMeter is a tool used for performance testing. It helps simulate heavy loads on web applications to analyze performance and measure response times. JMeter is beneficial for load and stress testing to ensure your app can handle high traffic.
**Postman**: Postman is used for API testing. It allows you to create and execute API requests and validate responses easily. Postman is essential for testing the backend services of a web app and ensuring they work correctly and efficiently.
**TestRail**: TestRail is a test case management tool that helps organize and track test cases, plan testing activities, and generate detailed reports. TestRail integrates with different testing tools and is valuable for managing manual and automated testing efforts.
**TestGrid**: TestGrid is a cloud-based platform that helps you test your software on different browsers and devices. It integrates with your development tools, offers real-time reports, and supports various testing frameworks. This is done to ensure that your software works well everywhere.
## Challenges in Web App Testing
Testing web apps determines whether they work well and provide a good user experience. However, there are several challenges testers often face:
Browser Compatibility: Web apps must work on different browsers like Chrome, Firefox, Safari, and Edge. Each browser may display things differently, which can lead to inconsistencies. The challenge arises when ensuring that the app looks and works the same across all browsers is difficult.
**Device Diversity**: People use web apps on various devices—desktops, laptops, tablets, and smartphones. Each device has different screen sizes and hardware. Testing the app to ensure it works well on all devices and is responsive to various screen sizes is complex.
**Dynamic Content**: Modern web apps often have content that changes based on user interactions and server data. Testing this dynamic content involves ensuring the data is displayed correctly and updated in real time.
**Frequent Updates**: Web apps often get frequent updates and new features. Each update generates new bugs or affects existing functionality. Continuous testing is needed to make sure updates don’t break the app.
**User Experience**: Testing for UX means making sure the app is easy to use and accessible to everyone, including people with disabilities. This involves not just functional testing, but also getting feedback from real users.
## Future Trends In Web App Testing
As technology advances, so does the field of web app testing. Given below are some future trends that are shaping the way we test web applications:
AI and Machine Learning: Artificial Intelligence and Machine Learning are starting to play a big role in testing. These technologies can help predict potential issues, optimize test cases, and even create tests automatically based on user behavior. This means faster, smarter testing with fewer resources.
**Test Environment as a Service**: Setting up test environments can be time-consuming and expensive. TEaaS offers cloud-based environments that can be set up quickly and cost-effectively. This means testers can focus more on testing rather than managing infrastructure.
Shift Left Testing: Starting testing earlier in the development process is called Shift Left Testing. It integrates testing into the early stages of development so that issues can be identified and fixed sooner. The trend will grow as teams improve quality and reduce the time it takes to bring an app to market.
**Test Management/Collaboration**: Better collaboration tools for development and testing teams will continue to evolve. These tools will help teams communicate more effectively and manage defects efficiently. Integration with project management and version control systems will be standard.
**Integration testing with microservices**: Many web apps are now built using a microservice architecture. Testing these microservices and their interactions will become more important in the future. Tools that can handle the complexities of microservices testing will be in high demand.
## Testing Made Easy With TestGrid
TestGrid is a testing platform designed to simplify your testing process. It has powerful features to help you catch bugs, ensure security, and deliver a flawless user experience.
TestGrid integrates into your workflow to make testing a seamless part of your development process. From automated testing to real-time reporting, TestGrid has everything you need to ensure that your web app shines.
Some of the features of TestGrid are:
**Cloud-Based Infrastructure**: TestGrid provides a cloud-based testing environment so that teams can perform testing without the need for on-premises hardware
**Cross-Browser and Cross-Device Testing**: The platform supports automated testing across multiple browsers and devices, ensuring applications work well in different environments
**Real-Time Reporting and Analytics**: It offers detailed real-time reports and analytics that helps teams to quickly identify and resolve issues
**Support for Multiple Frameworks**: The platform is compatible with various testing frameworks, making it flexible for different testing needs and preferences
**CoTester**: It is TestGrid’s core AI model that has all the essential knowledge about tools like Selenium, Appium, and more. CoTester effortlessly fits into your team’s workflow and can be trained just like any new team member. You can introduce it to your team structure, tech stack, and code repository, and watch it become an invaluable part of your testing process.
With TestGrid, teams can efficiently ensure the quality of their software products which ultimately leads to smoother development cycles and enhanced customer satisfaction.
## Conclusion
The future of web app testing holds exciting possibilities. When we say this, we are talking about smarter tools that can catch problems before they even happen and make testing faster and easier than ever before.
As technology evolves, testing methods and tools will continue to improve. By investing in robust testing practices now, you can ensure your app meets user expectations and stays ahead in a competitive market.
Effective web app testing is the difference between just another app and one that stands out for all the right reasons.
So, let’s continue to test diligently, innovate fearlessly, and uphold the standards of excellence that define our web apps.
Source : This blog is originally published at [TestGrid](https://testgrid.io/blog/web-app-testing/)
| morrismoses149 |
1,920,476 | Why ReactJS is a Game Changer for Enterprise App Development | Why has the correct choice of technology stack become so crucial amidst this uncertain and unwavering... | 0 | 2024-07-12T05:14:14 | https://dev.to/prashantpujara/why-reactjs-is-a-game-changer-for-enterprise-app-development-3jh1 | react, reactjsdevelopment, enterpriseappdevelopment | Why has the correct choice of technology stack become so crucial amidst this uncertain and unwavering panorama of enterprise app development? Among the immeasurable options, one that stands out at the forefront is ReactJS. Developed by Facebook, ReactJS changed (almost) everything regarding how developers were building and scaling enterprise applications.
So, exactly what is it about ReactJS that makes it the preferred framework for enterprise app development or why should you choose it? Let's find out in this blog.
**What is ReactJS?**
ReactJS is an open-source JavaScript library designed for user interfaces, generally single-page applications. Developed and maintained by Facebook, a React developer is able to build large web applications that change data without reloading the page. Its main objective is to be fast, and simple, making it perfect for enterprise app development.
From 2013 until now, ReactJS has been extremely popular among the developer and business communities. The architecture is component-based, while the virtual DOM and one-way data binding help support the building of vibrant and exceptionally high-performance user interfaces.
In the review by [Statista](https://www.statista.com/statistics/1124699/worldwide-developer-survey-most-used-frameworks-web/), ReactJS was regarded in 2024 as the 2nd most common web framework and preferred by 40.6% of its developers. But, what makes this framework so popular, let’s take a close look.
**Why ReactJS is A Popular Framework for Enterprise App Development**?
ReactJS efficiently updates only the required components in the Virtual DOM in ReactJS, hence faster in rendering and improving performance. This is a typical element that makes ReactJS crucial for enterprise apps with large datasets and complex UI interactions. Here are some other reasons that make ReactJS popular:
1. Component-Based Architecture
Another major reason behind ReactJS being popular for enterprise app development is its component-based architecture. This modular approach enables developers to break down UI into reusable components, hence making development easier. While development and testing are done independently, separation of concerns is maintained with the components, which becomes easier to handle in the case of large-scale applications. Because of this modularity, the maintainability of code increases, and the chances of bugs and errors decrease significantly.
2. High Performance with Virtual DOM
ReactJS uses a Virtual DOM, which speeds up performance. Changes don't need to be reflected in the entire real DOM; with ReactJs, only the necessary components have to be changed. This selective render makes updates faster and hence provides a smoother user experience. For enterprise apps with high-frequency data updates and complex user interactions, such performance improvement may be very valuable.
3. One-Way Data Flow
It becomes easier to handle all the data in the application because ReactJS has a one-way flow of data. Changes in ReactJS follow one direction, making it predictable and easy to debug. This makes it very necessary for business-critical applications dealing with huge data and high performance.
4. Rich Ecosystem and Community Support
The ReactJS ecosystem provides a lot of libraries and tools that extend its functionality. This ecosystem grants everything from state management libraries like Redux to server-side rendering through Next.js. It makes it easier for any developer to build robust enterprise applications in ReactJS. Besides, the community support for ReactJS is pretty active; almost all the developers are contributing to its constant improvement. The community support will ensure that the developer gets extensive documentation, tutorials, and third-party libraries.
5. SEO-Friendly
Most enterprise applications demand strong online visibility to target their audience. Besides, ReactJS provides an added advantage toward SEO performance in web applications with its server-side rendering. Server-side rendering ensures that a web page is completely rendered on the server before being passed to the client. It improves the indexing of web pages by search engines and helps in ranking, thus making ReactJS suitable for enterprise applications sensitive to SEO.
6. Scalability and Flexibility
This is a critical factor for enterprise applications, as they should grow with every business. Some of the major reasons that make ReactJS ideal for handling large-scale applications include scalability and flexibility. It helps in this direction due to its modular architecture and component reusability. Besides, ReactJS easily fits into other technologies so that entrepreneurs are able to build a tech stack most suitable for them.
**Popular Strategies for ReactJS Development**
These development strategies will help you use ReactJS to its fullest potential:
1. Code Splitting
Code splitting refers to improving an independent performance App by breaking down the code into smaller modules. Instead of loading the full application, it loads only those components of the app that are in demand at any particular time. This will increase the load time and improve the user experience. Dynamic imports enable loading components asynchronously and, therefore, provide support for code splitting in ReactJS. This strategy is particularly applicable to large applications wherein the loading of all codebases hurts performance and increases load time.
2. Server-Side Rendering (SSR)
Another strategy that will help improve performance and SEO considerably is server-side rendering. By rendering the initial HTML on a server and then pushing it to the client, SSR makes sure of faster application loading time and better indexing of the application by search engines. This is very critical for enterprise applications, banking on strong online visibility and quick load times for engaging users. Next.js and other frameworks make it easy for ReactJS developers, as server-side rendering is out-of-the-box supported in these frameworks.
3. State Management
Effective state management forms the bedrock of complex applications. To effectively manage the state of the application, developers working in ReactJS use libraries such as Redux or Context API. These will help in keeping a predictable state and turn around the ease of debugging and handling of the data flow of the application. Proper state management ensures an app that is responsive and continues to perform as complexity is added to the app. This allows the developer to have a single point of contact to check the application state, reducing the likelihood of bugs and inconsistencies within an application.
4. Performance Optimization
ReactJS developers make use of several performance optimization techniques in ReactJS to ensure that the smooth running of the application is ensured. It basically avoids unnecessary re-renders. Besides, through memoization techniques, lazy loading can also be implemented for images and components.
5. Testing and Debugging
Applications can be considered robust only after several testing and debugging processes are carried out. It is a standard practice in [ReactJS development](https://multiqos.com/reactjs-development/) to write unit, integration, and end-to-end testing with libraries such as Jest and React Testing Library. It ensures an application works as expected with careful handling of edge cases. In development, adding testing gives a chance to find and fix problems at the very first stage for better stability and reliability.
**Enterprises That Have Used ReactJS for Their Mobile Apps**
Several major companies have utilized ReactJS in their enterprise mobile apps, conspicuous in terms of effectiveness and flexibility. Here are some popular examples:
**Facebook**
As ReactJS was created by Facebook, naturally, quite a big application of the library is visibly extended to its platforms. The primary web app of Facebook and tons of internal tools are already built with ReactJS. The social media giant is using React's component-based architecture to manage its huge and complicated user interface that enables features to be independently developed and maintained. This modular approach has let Facebook innovate at a great pace while maintaining a smooth user experience across its numerous services.
**Instagram**
Another Facebook product, Instagram uses ReactJS for its web app. With ReactJS, Instagram is able to provide this in the best possible manner as it is a platform that is used predominantly for real-time interaction and loads of multimedia. In the case of Instagram, it handles high-frequency updates and complex user interfaces efficiently enough that users have minimal lag and can scroll through their feeds or engage in stories and direct messages seamlessly.
**Airbnb**
[Airbnb](https://multiqos.com/blogs/cost-to-build-a-marketplace-similar-to-airbnb/) utilizes ReactJS to deal with dynamic user interface design and huge amounts of data. This component-based structure makes it feasible for Airbnb to break down its user interface into smaller and reusable parts, which makes them maintainable. This comes particularly in handy for a platform like Airbnb, which includes loading and refreshing several different elements dynamically, such as listings, user profiles, and booking details. In this regard, ReactJS makes it easier to render a responsive and engaging experience to its users, facilitating everything from property searches to booking and payment processes.
**Netflix**
Netflix uses ReactJS for its user interface, making sure that the experience of its millions of users goes smoothly and the updates are pretty responsive. Netflix uses ReactJS to optimize its performance in rendering dynamic content fast enough. The virtual DOM offered by React plays a huge part in boosting Netflix's performance since only the necessary components get updated. This is quite crucial for the platform streaming high-quality video content.
**How ReactJS Enhances Business Growth?**
ReactJS boosts business growth to a great extent as it accelerates the [development process](https://multiqos.com/blogs/mobile-app-development-process/), and reduces the time to market. As mentioned earlier in the blog, it possesses a component-based architecture that encourages code reusability and therefore allows any developer to build complex applications efficiently and consistently.
Also, the modular approach makes it easy to maintain and update the app, reducing operational costs in the long run. To add more, the high performance and smooth user experience provided by ReactJS increase user engagement and satisfaction, finally driving business growth.
**Why Should You Hire ReactJS Developers for Your Enterprise Mobile App?**
If you [hire ReactJS developers](https://multiqos.com/hire-reactjs-developers/), your ReactJS development process can leverage several advantages. The following are some of the key reasons:
1. Mastery of the Modern Tools
A ReactJS developer, being well-versed in the most brilliant tools and libraries that extend React—like Redux for state management, React Router for routing, and Next.js for server-side rendering—would be able to speed up the development process by using those tools to build robust, scalable, and high-performance applications.
2. High-Efficiency
ReactJS developers are highly skilled at tuning applications for performance. It can enable seamless application performance through, among others, code splitting, lazy loading, and memoization. High-performance applications directly impact better user engagement and satisfaction; these happen to be critical for enterprise mobile apps that handle big user bases and complex functionalities.
3. Agility and Future-Proofing
A ReactJS developer can help future-proof your application by building it in such a way that it would most likely be adaptable to new requirements and technologies. Since React is flexible, a developer can continue its evolving process with other frameworks and tools when your business changes. This adaptability of the application shows that it has the ability to grow, scale, and evolve without needing complete overhauls, thereby saving time and resources in the long run.
**Conclusion**
Now that you have a brief understanding of why [mobile app development companies](https://multiqos.com/mobile-app-development/) should adopt ReactJS, do you think you will leverage this web framework for your mobile app and hire a ReactJS developer? Here's a small scenario to help you decide.
Imagine you are transforming your enterprise app with a foolproof tool - ReactJS. Your app will have lightning-fast performance, and a non-compliant user experience. This concludes with quick release and satisfied customers (who doesn't want that?). Adopt ReactJS and take your mobile app development to a timeless venture - because your business deserves the best. | prashantpujara |
1,920,477 | How Multilingual Marketing Can Propel Your Business Forward- Filose | Marketing has experienced a significant transformation in recent times, moving away from traditional... | 0 | 2024-07-12T05:14:12 | https://dev.to/olivia_davis09/how-multilingual-marketing-can-propel-your-business-forward-filose-kib | multilingualmarketing, multilingualmarketingexpert, multilingualmarketingservices | Marketing has experienced a significant transformation in recent times, moving away from traditional methods to embrace a more diverse and innovative approach. [Multilingual marketing](ttps://www.filose.com/multilingual-digital-marketing-services
) has emerged as a crucial component in the success of many businesses, enabling them to tap into new markets and expand their reach globally.
Expanding Across Borders: Implementing a Multilingual Marketing Approach - 6 Key Elements Essential for Every Business! In today's globalized world, businesses are increasingly looking to expand internationally. To successfully reach a global audience, it is crucial for businesses to incorporate multilingual marketing into their overall communication and outreach strategy.
**1. Expanding Business Reach:** Marketing strategies focus on expanding a business's reach by reaching out to a wider audience. Multilingual marketing plays a crucial role in enhancing marketing effectiveness by creating campaigns in various [languages](https://www.filose.com/business-translation-all-languages) and adapting them to resonate with different audiences, allowing businesses to access diverse markets and customer bases.
**2. Enhanced Customer Experience:** In today's competitive markets, foreign brands are embraced only when they offer a compelling user experience, which includes localized customer service and product information in the native language. Multilingual approaches contribute to informed decision-making and establish a strong foundation for a successful and enduring customer journey.
**3. Cultural Relevance:** Multilingual marketing involves tailoring campaigns and communication to connect with various cultural backgrounds. Adapting messages to align with cultural norms leads to better outcomes in the long term, fostering trust, credibility, and business opportunities. A culturally sensitive marketing campaign, when executed correctly, can yield significant benefits.
**4. Establishing Trust and Credibility:** This is crucial for businesses entering new markets, as people are unlikely to make purchases from a brand they do not trust. Language plays a key role in building trust, making it essential for brands to communicate in the local language to connect with the audience effectively and gain credibility.
**5. Having a Competitive Advantage:** In non-English markets involves offering multilingual support to make customers feel comfortable interacting with the brand. Companies that provide localized websites and multilingual customer support have a competitive edge over those that only offer English services, as they can attract a larger audience and build customer loyalty.
**6. Leveraging SEO in multilingual marketing:** Strategies is essential for businesses looking to expand into new markets. Incorporating local phrases, keywords, and trending terms in websites, mobile apps, and social media campaigns can improve visibility for local search terms, leading to higher search engine rankings and increased traffic from the local audience.
Multilingual marketing requires specialized expertise, and [Filose](https://www.filose.com/), a prominent company in the localization industry, is well-equipped to meet this demand. With more than ten years of experience catering to various languages, markets, and industries, Filose is a reliable option for multilingual marketing services. | olivia_davis09 |
1,920,478 | Asscher Cut 3 Carat Diamonds | Asscher Cut 3 Carat Diamonds is most in demand stone as engagement ring stone.3 carat diamonds are... | 0 | 2024-07-12T05:14:32 | https://dev.to/elongated_ovaldiamondri/asscher-cut-3-carat-diamonds-4n01 | Asscher Cut 3 Carat Diamonds is most in demand stone as engagement ring stone.3 carat diamonds are usully considered also as in investment item.
https://shivshambu.net/diamonds/asscher-cut/3-carat-diamonds | elongated_ovaldiamondri | |
1,920,479 | Advanced Robotic Abilities to Amp Aerospace Robotics Market Growth | As per Inkwood Research, the Global Aerospace Robotics Market is estimated to progress at a CAGR of... | 0 | 2024-07-12T05:18:11 | https://dev.to/nidhi_05c663bdf720fe33865/advanced-robotic-abilities-to-amp-aerospace-robotics-market-growth-43a7 | aerospacerobotics, aerospace, inkwoodresearch, marketresearchreport | As per Inkwood Research, the Global Aerospace Robotics Market is estimated to progress at a CAGR of 10.93% in terms of revenue over the forecasting period of 2024-2032.
VIEW TABLE OF CONTENTS :https://www.inkwoodresearch.com/reports/aerospace-robotics-market/#table-of-contents
Aerospace robotics is revolutionizing aircraft manufacturing and maintenance with precision automation, enhancing efficiency and safety. These advanced systems are crucial for tasks like assembly, inspection, and repairs, driving innovation in the aerospace industry.
REQUEST FREE SAMPLE : https://inkwoodresearch.com/reports/aerospace-robotics-market/#request-free-sample
Improved Robotic Capabilities to Propel Aerospace Robotics Market Growth
Improved robotic capabilities are set to propel the aerospace robotics market growth by enhancing efficiency, precision, and safety in various applications. These advancements include sophisticated automation for assembly and inspection tasks, significantly reducing human error and operational costs. State-of-the-art robots equipped with artificial intelligence and machine learning can adapt to complex aerospace environments, performing intricate tasks with high accuracy. A key goal aligned with this progress is to achieve zero-defect manufacturing, ensuring that every component meets stringent quality standards. This development accelerates production timelines and boosts the reliability and performance of aerospace systems, fostering innovation in the industry.
Articulated Robots: Largest Robot Type in the Aerospace Robotics Market
Articulated robots, characterized by their rotary joints, dominate the aerospace robotics market due to their flexibility and precision. They are extensively used in assembly, welding, painting, and inspection tasks, enhancing efficiency and accuracy in aerospace manufacturing and maintenance. These robots' ability to mimic human arm movements allows for intricate and complex operations, making them indispensable in the industry. As technology advances, articulated robots continue to evolve, incorporating AI and machine learning to further optimize performance and adaptability in dynamic aerospace environments.
In 2023, North America was the Major Region in the Aerospace Robotics Market
North America's dominance in the aerospace robotics market is driven by a robust aerospace industry with major players like Boeing and Lockheed Martin, creating high demand for automation. Government initiatives, such as Canada’s Strategic Aerospace and Defense Initiative (SADI) and the US's National Robotics Initiative (NRI), support innovation through significant funding for R&D in the region.
The global aerospace robotics market is characterized by intense industry rivalry, pushed by major players competing for market share and technological advancements. This competition spurs innovation and fuels companies to continually enhance their offerings to meet the evolving demands of the aerospace sector. Some of the leading companies operating in the market include ABB Ltd, Aerobotix, Comau SpA, Electroimpact Inc, FANUC Corporation, etc.
Request for Customization: https://inkwoodresearch.com/request-for-custom-report/
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| nidhi_05c663bdf720fe33865 |
1,920,480 | What are Vector Databases? A Beginner's Guide | Have you ever used AI tools like ChatGPT to chat with a robot or Stable Diffusion to generate unique... | 0 | 2024-07-12T05:18:49 | https://www.infracloud.io/blogs/vector-databases-beginners-guide/ | vectordatabase, ai, machinelearning, database | Have you ever used AI tools like [ChatGPT](https://chat.openai.com/) to chat with a robot or [Stable Diffusion](https://stability.ai/) to generate unique images? Wondered how they work?
Familiar apps, like the contacts app you use, use structured data, i.e., name, phone number, email address, and a few more text and numeric fields. While AI apps deal with different kinds of data that are unstructured. Some examples of unstructured data are articles, chats, pictures, multimedia, etc. These are quite complex for computer programs to process and understand the context.
Applications like contact apps work very well with SQL-type databases since their requirements are fairly simple. However, when it comes to AI apps and tools that refer to different kinds of unstructured data, regular databases aren't made to handle it. This is where vector databases come in! They're a special kind of database that helps AI platforms store and process unstructured data easily. That is why many AI tools are switching to vector databases or using them from the beginning.
Vector databases are the backbone of any AI application. In this blog post, we'll understand what they are and how they are different from traditional SQL and No-SQL databases, along with understanding the benefits they bring to the table. Let’s get started 🚀.
## Types of data
Before diving deeper into the vectors and vector databases, let's first understand the types of data and how they affect the type of database best suited for its storage and querying capabilities.
<p><center><a href="https://k21academy.com/microsoft-azure/dp-900/structured-data-vs-unstructured-data-vs-semi-structured-data/">(K21Academy)</a></center></p>
### Structured data
Any data that has a predefined and fixed schema for it is called structured data. This data can be represented in a tabular format. SQL databases, spreadsheets, etc. are best suited for storing and interacting with this type of data.
### Semi-structured data
Semi-structured data is data with a flexible schema. In other words, it is “self-describing” data such as JSON or XML files. These files contain data as well as structural details about themselves. This type of data is ever-evolving, as it lacks a fixed schema.
Document stores, Key-Value stores, and Graph databases are some examples of suitable databases for storing and analyzing semi-structured data.
### Unstructured data
Unstructured data is any other data that is mostly in the form of natural language and/or in multimedia format. Some examples of this type of data would be news articles, social media discussions, images, audio-visuals, etc. This is the largest form in which the data exists today and is the most difficult data to comprehend for computer systems as well. For example, consider a simple sentence “Sam likes Football”. Depending on the context and the background of the person, “Football” can either mean [American Football](https://en.wikipedia.org/wiki/American_football) or [Soccer](https://en.wikipedia.org/wiki/Association_football). Similarly, a single picture can be seen and interpreted in numerous ways depending on the person, their point of view as well as the required information being seeked out of it. This is called [latent](https://www.merriam-webster.com/dictionary/latent) semantic meaning of the given data.
The latent semantic meaning of the data can be extracted by evaluating it against a large number of attributes, such as words immediately preceding and following the text, context of the data, person’s background, grammar, etc., and converting it into n-dimensional numerical arrays, i.e., vector embeddings.
Vector databases excel at storing, indexing, and querying such data.
Below image represents how the same kind of data can be represented in three different types listed above.
## What are vectors?
Vector is a mathematical concept which indicates information in more than one dimension. Being able to represent data in multiple dimensions is the key that helps vectors in AI and machine learning (ML). Unstructured data contains latent semantic meaning in multiple attributes. Hence the semantic meaning for any given data point needs to be captured with respect to all the relevant attributes for the model.
<p><center><a href="https://commons.wikimedia.org/wiki/File:Vector_in_2D_space.png">(Wikimedia)</a></center></p>
Below are some examples of unstructured data containing semantic meaning in multiple attributes.
1. **Text**: The text you read can contain semantic information in many ways, such as individual words, their relationships, part of speech, sentence structure, grammar rules, overall topic/theme, sentiment, etc. Depending on the purpose, multiple AI models can use the same text data to evaluate the latent semantic meaning and form different vector data.
2. **Images**: Pixel data in images can be used to describe the image in vector forms. Some of the features that the models can consider would be colors, tones, shapes, edges, brightness, identifying objects, location, arrangement, artistic style, etc.
3. **Audio**: For audio data, sound waves can be converted to numerical representations and evaluated on a number of parameters such as volume, timbre, tempo, attack and decay, frequencies, harmonics, etc.
## Vector embeddings
In simple terms, vector embeddings, a.k.a. embeddings are high-dimensional vectors generated by neural networks. A typical vector database stores many such embeddings.
Vectors help us represent data in mathematical form since modern CPUs and GPUs are best suited for working with mathematical data. Though, just turning data into a mathematical form isn’t useful if it cannot represent the **meaning** of the data it represents. For example, we can easily compare words in two sentences using computers, but that may not tell us whether they mean the same thing or if they are about the same topic. This is where vector embeddings and embedding models come into play. The embedding model takes a large amount of **labeled data** and converts it into numerical representation in a high-dimensional space. Each dimension represents a specific attribute or feature of the data extracted from it.
Here is an example of vector embeddings generated using word2vec, a well-known model used to generate word embeddings. As you can see, it converts given words into an array of floating point numbers. It does that by evaluating the words on a set number of parameters, since computers can easily understand and process numbers than the meaning of words themselves.
**Word**: "king"
**Embedding**: [-0.25, 0.42, 0.18, ..., 0.71] (This is a reduced dimensionality example, actual embeddings can have hundreds of dimensions)
**Word**: "queen"
**Embedding**: [-0.31, 0.38, 0.24, ..., 0.68]
**Word**: "computer"
**Embedding**: [0.17, -0.52, 0.89, ..., 0.34]
[Word2vec](https://en.wikipedia.org/wiki/Word2vec) is a classic example of a text embedding model for Natural Language Processing (NLP) algorithms. This model encodes semantic meaning and relationships between words. Thus, it is able to represent words with similar meanings closer together. The below image shows the visualization produced by TensorFlow’s projector tool for this model.
<p><center><a href="https://projector.tensorflow.org/">(Word2vec 10k embedding projector)</a></center></p>
## How do vector databases work?
Vector databases help store the vector embeddings generated by the embedding model. These vector embeddings are multidimensional numerical arrays that can sometimes span across hundreds of dimensions. Traditional scalar based databases can’t work with this type of data efficiently; this is why we need specialized databases like vector databases which are specifically designed to handle this data type. Some reasons why traditional databases can’t work with vector data efficiently are:
1. Vector embeddings that are high-dimensional arrays of numbers don’t fit neatly into a structured format.
2. The indexing algorithms of traditional databases are optimized for structured and semi-structured data. Vector embeddings need a different set of algorithms for indexing.
3. Traditional databases lack the functionality to perform complex distance calculations, like cosine similarity, needed to compare and query vectors.
Below diagram shows a simplified way a typical vector database works.
First, we feed the embedding model with the required labeled data in large quantities. The embedding model consists of execution of a data pipeline that largely consists of two steps:
1. **Preprocessing**: During preprocessing, the model cleans the data, removes noise, and inconsistencies, and then normalizes the data.
2. **Embedding**: The embedding stage includes feature extraction & vectorization (encoding) of the data followed by dimensionality reduction. The last step reduces the number of dimensions of the vector, if needed, for efficiency.
The vector embeddings are then inserted into the vector database for long term storage. The embeddings also contain some reference to the original content it was created from. Once enough vector data has been inserted into the database, the data that has similar semantic meaning naturally gravitates closer together.
In order to get query results from the database, the query is also run through the same embedding model as the data. This converts the query into another vector. The vector database then searches for data points closest to the query vector based on the distance metric and returns the results. In some cases, the database also needs to post-process the nearest neighbors of the queried data before returning them.
## Indexing algorithms
The AI and ML applications need to be trained on a large amount of data. In addition to that, the fact that the vector embeddings generated can have hundreds of dimensions means that the vector databases need to store a huge amount of data. Querying over such a huge amount of data is quite cumbersome, even for vector databases. Hence, similar to scalar based databases, indexing also helps vector databases with faster query retrievals. The vector db indexes create a quickly traversable data structure using several algorithms. Below are some of the common ones.
### Hierarchical Navigable Small World (HNSW)
HNSW builds a hierarchical structure. Each node in the hierarchy represents a set of vectors, and each edge represents the similarity between the vectors. It organizes the data points into a series of graphs at different levels, and similar data points are connected within each graph.
The benefits of HNSW include efficient approximate nearest neighbor searches, fast search times, and scalability with large datasets.
### Locality Sensitive Hashing (LSH)
Locality sensitive hashing projects data points onto multiple hash tables using hash functions. These hash functions map similar vectors to the same or similar bucket which helps the database locating the query results faster.
The benefits of using LSH for indexing are very fast filtering of dissimilar points and being especially useful for large datasets with high dimensionality.
### Product Quantization (PQ)
Product quantization is a lossy compression technique for high dimensional data. It reduces the dimensionality of the vectors into subvectors using codebooks and quantizes each subvector separately. During encoding, the original vector is compared to the codewords in the codebook, and the closest ones are selected to represent the original vector.
PQ helps in efficient approximate nearest neighbor search and reduction in storage requirements.
## Use cases of Vector databases
Vector databases are a useful tool in many applications. Here are some use cases of the same.
### Recommendation systems
Recommending articles, movies, music, products, etc., based on user preferences and/or the given description in text or other formats. They can store user profiles and item embeddings for efficient retrieval of similar items to recommend. This can help social media platforms, media publishing houses, and OTT platforms engage users and build brand loyalty.
### Natural language processing (NLP)
Vector databases make tasks like sentiment analysis, topic modeling, and machine translation possible and efficient. They can store word as well as sentence embeddings enabling fast processing of large natural language data. This helps search engines provide better results, as well as chatbots and virtual assistants.
### Fraud detection and anomaly detection
Vector databases help in analyzing and detecting unusual patterns, objects, behaviors in various data forms. They can store historical transaction embeddings or sensor data embeddings, which allows real-time detection of suspicious patterns. It is used by financial organizations to prevent financial frauds in their tracks.
### Drug discovery and material science
Finding similarity to existing data is an important capability for identifying potential drug candidates or new alternatives to existing materials. Vector databases can store molecular embeddings or material property embeddings, enabling faster scientific discoveries. This helps to significantly reduce the time it takes to develop new drugs and discover newer materials for specific applications.
## Vector DB classification
The vector databases are broadly classified using two aspects.
1. Dedicated vector database
2. Licensing model
Dedicated vector databases have certain advantages over traditional databases that support vector search. They are built for speed, with optimized indexing and scalability. On the other hand, traditional databases with support for vector search have advantages like the ability to handle structured and/or unstructured data along with vectors, with a smoother learning curve.
<p><center><a href="https://blog.det.life/why-you-shouldnt-invest-in-vector-databases-c0cd3f59d23c">(Vector databases landscape)</a></center></p>
The diagram above shows a few of the popular vector database options available today and how they fit into the landscape.
## Conclusion
Vector databases are revolutionizing how we handle and interact with large and complex data in the age of artificial intelligence. They unlock a vast range of possibilities through their ability to capture, persist and efficiently search through the essence of data. From powering recommendation systems to accelerating scientific discovery, vector databases are bound to play a central role in the upcoming data driven future.
As new vector databases emerge and evolve, we can expect even faster speeds, larger storage capacities, more sophisticated indexing and world-wide adoption of them across industries.
Now that you have learned about vector databases, how they work, their use cases, and classification, you can bring in [AI & GPU Cloud experts](https://www.infracloud.io/build-ai-cloud/) to help you build your own AI cloud.
If you found this post useful and informative, subscribe to our weekly newsletter for more posts like this. Do start a conversation about this post on [LinkedIn](https://www.linkedin.com/in/sameer-kulkarni-9875773b/). I’d love to hear your thoughts. | samkulkarni20 |
1,920,501 | Food Waste Management Software in Saudi Arabia | A properly-organized Food waste management is crucial to sustainable development and for... | 0 | 2024-07-12T05:24:57 | https://dev.to/syed_rashedahmed_ab8d93b/food-waste-management-software-in-saudi-arabia-447k | wastemanagement, recyclingsoftware | A properly-organized [Food waste management](https://www.expediteiot.com/waste-management-software-in-ksa-qatar-and-oman/) is crucial to sustainable development and for environmental protection, especially in an expanding area like the Saudi Arabia. Making use of the most recent software tools will significantly increase the efficiency of waste management practices. Waste management software in Jeddah, waste collection software in Riyadh, and recycling software in Dammam. | syed_rashedahmed_ab8d93b |
1,920,502 | NEW JOINEEE | Heyy Guys, i've just joined dev really exited to interact with you guyss. | 0 | 2024-07-12T05:27:16 | https://dev.to/rishisingh1034/new-joineee-431b | **Heyy Guys**, i've just joined dev really exited to interact with you guyss. | rishisingh1034 | |
1,920,503 | Installation of Python, Pycharm, Selenium and Web Drivers | Installation Guide: Python, PyCharm, Selenium and Web Drivers This guide is intended to... | 0 | 2024-07-12T06:59:19 | https://dev.to/michael_chepala_7267688a0/installation-of-python-pycharm-selenium-and-web-drivers-509 | selenium, weddrivers, python, pycharm |
## Installation Guide: Python, PyCharm, Selenium and Web Drivers
This guide is intended to simplify the installation process for Python, PyCharm, and Selenium. I've created this draft to help ease the difficulty many people face when searching for comprehensive installation instructions. Whether for practice or work, following these steps will ensure a smooth setup experience.
## Step 1: Install Python
### Windows
1. **Download Python:**
- Go to the [official Python website](https://www.python.org/downloads/).
- Download the latest version of Python.
2. **Run the Installer:**
- Run the downloaded installer.
- Check the box "Add Python to PATH".
- Click "Install Now".
- Click on "Disable MAX PATH LIMIT(255)".
### macOS
1. **Download Python:**
- Go to the [official Python website](https://www.python.org/downloads/).
- Download the latest version of Python.
2. **Run the Installer:**
- Open the downloaded `.pkg` file.
- Follow the installation instructions.
Sure! Here are the installation instructions for Python on macOS:
## Installation Instructions for Python on macOS
### Step 1: Download Python
1. **Go to the Official Python Website:**
- Open your web browser and navigate to the [official Python website](https://www.python.org/downloads/).
2. **Download the Latest Version:**
- The website should automatically detect your operating system and suggest the latest version for macOS.
- Click the "Download Python [version]" button to download the installer.
### Step 2: Install Python
1. **Run the Installer:**
- Once the download is complete, locate the downloaded file, typically in your `Downloads` folder.
- Double-click the `.pkg` file to open the Python installer.
2. **Follow the Installation Steps:**
- The installer will open a new window. Click "Continue" to begin the installation process.
- Review and agree to the license agreement.
- Choose the installation location. The default location is usually fine.
- Click "Install" to start the installation.
- You may be prompted to enter your macOS password to authorize the installation. Enter your password and click "Install Software".
3. **Complete the Installation:**
- Once the installation is complete, click "Close" to exit the installer.
### Step 3: Verify the Installation
1. **Open Terminal:**
- You can find Terminal in `Applications` > `Utilities` or by using Spotlight Search (`Cmd + Space` and type "Terminal").
2. **Check Python Version:**
- In Terminal, type the following command and press `Enter`:
```bash
python3 --version
```
- You should see the version of Python you installed. For example:
```
Python 3.x.x
```
3. **Check pip Version:**
- In Terminal, type the following command and press `Enter`:
```bash
pip3 --version
```
- You should see the version of `pip` installed with Python. For example:
```
pip 21.x.x from /Library/Frameworks/Python.framework/Versions/3.x/lib/python3.x/site-packages/pip (python 3.x)
```
### Step 4: Set Up Environment Variables (Optional)
1. **Add Python to PATH:**
- Open Terminal and enter the following command to open the `.bash_profile` or `.zshrc` file in a text editor:
```bash
nano ~/.zshrc
```
or
```bash
nano ~/.bash_profile
```
2. **Edit the File:**
- Add the following line to the file:
```bash
export PATH="/Library/Frameworks/Python.framework/Versions/3.x/bin:$PATH"
```
- Save the file by pressing `Ctrl + O`, then press `Enter`. Exit by pressing `Ctrl + X`.
3. **Apply Changes:**
- In Terminal, run the following command to apply the changes:
```bash
source ~/.zshrc
```
or
```bash
source ~/.bash_profile
```
### Step 5: Install Virtualenv (Optional)
1. **Install virtualenv:**
- To create isolated Python environments, you can use `virtualenv`. Install it using `pip`:
```bash
pip3 install virtualenv
```
2. **Create a Virtual Environment:**
- Navigate to your project directory:
```bash
cd path/to/your/project
```
- Create a virtual environment:
```bash
virtualenv venv
```
3. **Activate the Virtual Environment:**
- Activate the virtual environment:
```bash
source venv/bin/activate
```
- You will see `(venv)` in your terminal prompt, indicating the virtual environment is active.
4. **Deactivate the Virtual Environment:**
- To deactivate the virtual environment, simply run:
```bash
deactivate
```
You have now installed Python on your macOS system, set up your environment variables, and optionally installed `virtualenv` for managing your projects.
### Linux
1. **Using APT (Debian/Ubuntu):**
```bash
sudo apt update
sudo apt install python3 python3-pip
```
2. **Using DNF (Fedora):**
```bash
sudo dnf install python3 python3-pip
```
## Step 2: Install PyCharm
1. **Download PyCharm:**
- Go to the [JetBrains PyCharm website](https://www.jetbrains.com/pycharm/download/).
- Download the Community Edition (free) or Professional Edition (paid).
- Always remember to Check the System version and download compatible version else, you will able to install but not able open the pycharm software
2. **Run the Installer:**
- Follow the installation instructions provided by JetBrains.
- Certainly! Here are the installation instructions for PyCharm as provided by JetBrains:
## Installation Instructions for PyCharm
### Windows
1. **Download PyCharm:**
- Go to the [JetBrains PyCharm download page](https://www.jetbrains.com/pycharm/download/).
- Download the Community Edition (free) or Professional Edition (paid).
2. **Run the Installer:**
- Double-click the downloaded `.exe` file to launch the installer.
- Follow the setup wizard:
- Click "Next" to continue.
- Choose the installation location and click "Next".
- Select the desired installation options:
- Create a desktop shortcut.
- Add the “bin” folder to the PATH (recommended).
- Associate `.py` files with PyCharm.
- Add an open folder as a project option.
- Click "Install".
- Once the installation is complete, click "Finish".
3. **Launch PyCharm:**
- After the installation, you can start PyCharm by double-clicking the PyCharm shortcut on your desktop or by searching for PyCharm in the Start menu.
### macOS
1. **Download PyCharm:**
- Go to the [JetBrains PyCharm download page](https://www.jetbrains.com/pycharm/download/).
- Download the Community Edition (free) or Professional Edition (paid).
2. **Install PyCharm:**
- Open the downloaded `.dmg` file.
- Drag and drop the PyCharm application into the Applications folder.
3. **Launch PyCharm:**
- Open Finder and go to the Applications folder.
- Find PyCharm and double-click to open it.
- If you see a warning about opening an application downloaded from the internet, click "Open".
### Linux
1. **Download PyCharm:**
- Go to the [JetBrains PyCharm download page](https://www.jetbrains.com/pycharm/download/).
- Download the tar.gz package for the Community Edition (free) or Professional Edition (paid).
2. **Install PyCharm:**
- Open your terminal.
- Navigate to the directory where the tar.gz file was downloaded.
- Extract the tar.gz file:
```bash
tar -xzf pycharm-*.tar.gz
```
- Move to the extracted directory:
```bash
cd pycharm-*/
```
- Run PyCharm:
```bash
./bin/pycharm.sh
```
3. **Create a Desktop Entry (optional):**
- While running PyCharm, go to the main menu and select "Tools" > "Create Desktop Entry".
### First-time Startup
1. **Activate PyCharm:**
- On the first startup, you will be prompted to activate PyCharm.
- For the Community Edition, select "Evaluate for free" and click "Evaluate".
- For the Professional Edition, enter your JetBrains account credentials or use a license key.
2. **Customize PyCharm:**
- Choose your UI theme (Light or Dark).
- Configure additional settings as needed.
3. **Create or Open a Project:**
- You can now create a new project, open an existing project, or check out a project from version control.
---
For more detailed instructions and troubleshooting, refer to the official [PyCharm installation guide](https://www.jetbrains.com/help/pycharm/installation-guide.html).
## Step 3: Install Selenium
1. **Using pip:**
- Open your command line or terminal, Run as Administrator
- Install Selenium using the following command:
```bash
pip install selenium
```
## Step 4: Verify Installation
**Check Python Installation:**
```bash
python --version
```
**Check pip Installation:**
```bash
pip --version
```
**Update pip Installation:**
```bash
python -m pip install --upgrade pip
```
4. **Verify if Selenium Installed Properly or Not:**
```bash
pip show selenium
```
**You should get the selenium details**
**Web Drivers:**
For the latest Selenium Version: 4.22.0, Web Drivers have been pre installed
You can verify in path:
```bash
C:\Users\AppData\Local\Programs\Python\Python311\Lib\site-packages\selenium\webdriver
```
you will see the wedrivers for IE, Chrome, Edge, FireFox, Remote, Safari, Chromium.
**Verify Selenium Installation:**
- Open a Python interactive shell by typing `python` in your command line or terminal.
- Run the following commands:
```python
import selenium
print(selenium.__version__)
```
## Example: Basic Selenium Script
Here's a simple script to verify your Selenium setup. This script opens a web browser and navigates to a website.
1. **Install WebDriver:**
- Download the appropriate WebDriver for your browser (e.g., ChromeDriver for Chrome) from [Selenium’s official site](https://www.selenium.dev/downloads/).
- Make sure to place the WebDriver executable in a directory that is in your PATH.
2. **Create a Python Script:**
```python
from selenium import webdriver
# Initialize the WebDriver (assuming ChromeDriver is in your PATH)
driver = webdriver.Chrome()
# Open a website
driver.get("https://www.python.org")
# Print the title of the page
print(driver.title)
# Close the browser
driver.quit()
```
3. **Run the Script:**
- Save the script as `test_selenium.py`.
- Run the script in your command line or terminal:
```bash
python test_selenium.py
```
If everything is set up correctly, you should see the browser open, navigate to the Python website, and print the page title in the console.
###**Additional Selenium Web Drivers Configuration:**
If you are using earlier versions or not able to see webdriver, you can download them or For more details you can see visit:
https://pypi.org/project/selenium/
After downloading the files, extract the files and copy the drivers.exe and place in the path or accordingly to your system files path
```
C:\Users\AppData\Local\Programs\Python\Python311\
```
This is a pre installed path for python that is available in the environment variables, which you pretty much can use without errors
or You can create a folder in "C drive" and add that file path in environment variables.
**Driver "PATH" Configuration:**
Here are the instructions on how to add the path `C:\Users\AppData\Local\Programs\Python\Python311\` or any "PATH" to the environment variables in Windows:
## Adding Python Path to Environment Variables in Windows
### Step 1: Open Environment Variables Settings
1. **Open System Properties:**
- Press ``Win + Pause/Break`` to open the System window.
- Alternatively, you can right-click on the ``This PC`` or ``Computer`` icon on your desktop or in File Explorer and select ``Properties``.
2. **Open Advanced System Settings:**
- In the System window, click on ``Advanced system settings`` on the left-hand side.
3. **Open Environment Variables:**
- In the System Properties window, click on the ``Environment Variables...`` button near the bottom.
### Step 2: Edit the PATH Variable
1. **Locate the PATH Variable:**
- In the Environment Variables window, you will see two sections: ``User variables`` and ``System variables``.
- Scroll down in the ``System variables`` section and find the variable named ``Path``. Select it and click on the ``Edit...`` button.
2. **Add New Path:**
- In the Edit Environment Variable window, you will see a list of paths. Click on the ``New`` button to add a new path.
- Enter the path ``C:\Users\AppData\Local\Programs\Python\Python311\`` in the new entry.
3. **Save Changes:**
- After adding the path, click ``OK`` to close the Edit Environment Variable window.
- Click ``OK`` again to close the Environment Variables window.
- Finally, click ``OK`` to close the System Properties window.
### Step 3: Verify the Path Addition
1. **Open Command Prompt:**
- Press ``Win + R``, type ``cmd``, and press ``Enter`` to open the Command Prompt.
2. **Check Python Version:**
- Type the following command and press ``Enter``:
```cmd
python --version
```
- You should see the version of Python installed in ```
C:\Users\AppData\Local\Programs\Python\Python311\
```
If everything is set up correctly, the command prompt should display the Python version, confirming that the path has been successfully added to the environment variables.
These steps ensure that Python can be accessed from any command prompt window without needing to specify the full path to the executable each time.
--- | michael_chepala_7267688a0 |
1,920,505 | COMMON CLOUD SERVICES & BENEFITS OF CLOUD COMPUTING | NOTE : the term 'Cloud Computing' can be used to refer to all categories The Cloud Provider can have... | 28,043 | 2024-07-12T05:40:39 | https://dev.to/1hamzabek/common-cloud-services-benefits-of-cloud-computing-1j5d | webdev, tutorial, devops, cloud | `NOTE : the term 'Cloud Computing' can be used to refer to all categories `
The **Cloud Provider** can have hundreds of cloud services.
In this topic i'll mention the four common types of cloud services for
IaaS (Infrastructure as a Service) :
1. **Compute** : Imagine having a virtual computers that can runs your application, program and code.
2. **Storage** : It is like having a virtual hard-drive that can store files.
3. **Networking** : Imagine having virtual network being able to define internet connection or Network Isolation.
4. **Database** : Imagine having a virtual Database for storing reporting data on a Database for general purposes web-application.
> GOOD TO KNOW : WHAT DOES AZURE MEANS? "BRIGHT BLUE COLOR OF THE CLOUDLESS SKY"
## WHAT ARE THE BENEFITS OF CLOUD COMPUTING
1. Cost-Effective : You pay for what you consume, there is no up-front cost, Pay-as-you-Go (PAYG). Also sharing the cost with hundreds of customers makes it cheaper.
2. Global : Launch Workloads ANYWHERE in the world, just choose the region.
3. Secure : Cloud Provider takes care of the Physical Secure, The cloud service can be secure by default, or you have the ability to configure access down to granular level.
4. Reliable : Data Backup, Disaster recovery, and data replication, fault tolerance.
5. Scalable : Increase or decrease the resources and service based on demand.
6. Elastic : Automate scaling during spikes and drop demand.
7. Current : The underlying hardware and managed softwareis patched, upgraded and replaced by the cloud provider without interruption for you.
Next topic will be about Types of cloud computing, essential information for beginners.
Hope you enjoyed, have a great day <3
| 1hamzabek |
1,920,507 | How to avoid one of the biggest risks in mobile security as an iOS developer | What is the most significant security concern in your average mobile app? What could cause... | 28,042 | 2024-07-12T17:00:00 | https://medium.com/@alexlotsu/how-to-avoid-one-of-the-biggest-risks-in-mobile-security-as-an-ios-developer-bc48ee7881f9 | ios, security, mobile, swift | ## What is the most significant security concern in your average mobile app?
What could cause GDPR violations, fines and damage company reputation?
Unintentionally leaking user data. More specifically, this article will focus on how to avoid unintentionally logging sensitive user data.
Sensitive user data could be anything from users’ addresses, credit card information to health info.
“But my logging system is only available internally”
Many studies show 20–80%+ of data breaches are internal (Sources 1, 2), so part of having a robust security strategy is making sure user data is not available to *anyone* it doesn’t need to be.
## What can I do as a developer to avoid this and have impact across my codebase?
<br />
<br />
### Design Smarter — Unified Logging system
Multiple logging frameworks makes it hard to manage sanitisation, processes and ensure every line of code meets the same standards. A unified logging system is ideal as it allows you to have a common approach for logging safely across the system.
### Filter data in your logging system.
Using `NSRegularExpression`, `NSDataDetector` and blacklists you can filter out specific values you do not want to log. A breakdown of each method:
`NSRegularExpression` — Use Regex to define specific patterns that can be used to filter logs and redact if any matches are found.
For example, you could create a Regex pattern to check for values that resemble emails and then redact these values before they get logged.
```swift
func redactAddresses(in text: String) -> String {
// Define a regex pattern for matching addresses
// This example pattern looks for a typical street address format (e.g., “123 Main St”)
let pattern = "\d{1,5}\s\w+(\s\w+)*\s(?:St|Street|Ave|Avenue|Rd|Road|Blvd|Boulevard|Dr|Drive|Ln|Lane|Ct|Court|Pl|Place|Way|Terrace|Terr)\b"
// Create the regular expression object
guard let regex = try? NSRegularExpression(pattern: pattern, options: []) else {
print(“Invalid regex pattern”)
return text
}
// Define the range of the input text to be searched
let range = NSRange(text.startIndex..<text.endIndex, in: text)
// Perform the regex search and replace matches with “[REDACTED]”
let redactedText = regex.stringByReplacingMatches(in: text, options: [], range: range, withTemplate: “[REDACTED]”)
return redactedText
}
// Example usage
let inputText = "John lives at 123 Main St and his office is located at 456 Elm Ave."
let redactedText = redactAddresses(in: inputText)
print(redactedText)
// Output: “John lives at [REDACTED] and his office is located at [REDACTED].”
```
**Pro:** You can define intricate patterns to search for in your data.
**Con:** You have to consider and handle any localisation and formatting of the data yourself. This means if your data is in other languages or could have various formatting you must account for this in your Regex definitions.
`NSDataDetector` — use it to filter common data types (phone numbers, urls, addresses). This approach requires less work than regex but can fail quite easily if the data doesn’t follow common structures.
```swift
func redactAddresses(in text: String) -> String {
// Create an NSDataDetector for addresses
guard let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.address.rawValue) else {
print(“Failed to create NSDataDetector”)
return text
}
// Create a mutable copy of the input text to perform replacements
var redactedText = text
// Define the range of the input text to be searched
let range = NSRange(text.startIndex..<text.endIndex, in: text)
// Find matches and replace them with “[REDACTED]”
detector.enumerateMatches(in: text, options: [], range: range) { match, flags, stop in
if let matchRange = match?.range {
if let swiftRange = Range(matchRange, in: text) {
// Replace the matched address with “[REDACTED]”
redactedText = redactedText.replacingCharacters(in: swiftRange, with: "[REDACTED]")
}
}
}
return redactedText
}
// Example usage
let inputText = "John lives at 123 Main St and his office is located at 456 Elm Ave."
let redactedText = redactAddresses(in: inputText)
print(redactedText)
// Output: “John lives at [REDACTED] and his office is located at [REDACTED].”
```
You’ll notice you have the ability to choose from a predefined `CheckingType` with `NSDataDetector`. Some of the types it can be useful at checking for:
- Address
- Links
- Phone numbers
**Pro:** It handles localisation and formatting for the different data types it detects (nicer for international use)
**Con:** Less flexible and sometimes won’t pick up on patterns if it doesn’t follow a well-known structure (e.g it will not detect some addresses from some countries/areas that don’t follow standard address formats)
I would say this can be a good option to get you started if you are looking to filter the types listed above and under time constraints. Also, it could be used in conjunction with an `NSRegularExpression` filter.
### Blacklist
Blacklist certain values you want to specifically target. This is great if you have a particular value in mind you want to filter out. However, because it is so specific, it can mean variations of that value are not caught as they would be with `NSRegularExpression` or `NSDataDetector`.
## The secret sauce to building a logging system that can adapt in real-time
How can your app handle a logging incident? Do you have to write an update to go out in the next release cycle, meaning you are potentially waiting weeks until it is effective?
Or do you have to disable an entire feature behind a feature flag to stop logging sensitive data?
Putting your filters behind feature flags so they can be modified in incident response is a powerful way to build an app that can be updated in real-time to fix data breaches. With the power of building feature flagging into your app, you can use this to your advantage for a more effective incident response process.
Anytime your logging system alerts you or another team that sensitive data is being logged, you can respond immediately by updating the regex or blacklist values your app uses to filter for a new type.
For example, if your app is found to be logging username and passwords, you could modify the feature flag to include a regex pattern for username and passwords:
```swift
let patternsString = """ ^[A-Z0–9._%+-]+@[A-Z0–9.-]+\\.[A-Z]{2,}$;^[A-Za-z0–9]{3,16}$;^(?=.*[A-Z])(?=.*[a-z])(?=.*\\d)(?=.*[@$!%*?&#])[A-Za-z\\d@$!%*?&#]{8,}$; """
// Split the string into an array of patterns
let patternsArray = patternsString.split(separator: “;”).map { String($0) }
```
(You can keep your pre-defined regex patterns separate but have a string feature flag value for values you want to append on the fly)
This means you now have an incident response process for all app users and everyone who works on your app to quickly rectify any logging issues. So the next time you (or a team member) is paged about a production incident in your free time, you can quickly sort it and get back to watching your TV show.
## Develop smarter with property wrappers
One of the reasons sensitive data can often get logged is due to logging an entire value (like a `User Struct`) without realising you are logging all the properties from that `Struct`, i.e. name, email address, etc.
A smart way to avoid this is a method raised here by Oleg Dreyman that uses property wrappers on any values linked to sensitive data. https://olegdreyman.medium.com/keep-private-information-out-of-your-logs-with-swift-bbd2fbcd9a40
To summarise, your property wrapper has overridden definitions of the values typically used:
```swift
@propertyWrapper
struct LoggingExcluded<Value>: CustomStringConvertible, CustomDebugStringConvertible, CustomLeafReflectable {
var wrappedValue: Value
init(wrappedValue: Value) {
self.wrappedValue = wrappedValue
}
var description: String {
return "— redacted — "
}
var debugDescription: String {
return " — redacted — "
}
var customMirror: Mirror {
return Mirror(reflecting: " — redacted — ")
}
}
```
So if you go to log a struct like User, that has its sensitive data properties marked with this property wrapper `@LoggingExcluded` the User struct logged will show `— redacted —` for the sensitive values. Checkout the article for more on this.
## Enable Logging alerts in staging
Enabling alerts in your staging environment allows you to receive notifications when sensitive data is logged before it goes out into production. It can be easy to ignore staging alerts but treating them with care can help catch these issues before they impact production.
## Personal recommendation
If there was one takeaway I had to advise you to implement in your application it would be putting your logging filter behind a feature flag so you can easily update it on the fly across all of your app users.
Implement these techniques to build a smarter, more secure system and have an impact across your codebase.
## Want more security insights in mobile development?
I’m Alex, a software engineer and security champion. I write about mobile security and provide tips you can implement in your apps.
To stay up to date on future posts and short form content:
[Follow me on LinkedIn](https://www.linkedin.com/mynetwork/discovery-see-all/?usecase=PEOPLE_FOLLOWS&followMember=alex-lotsu-644a9b18a)
## Sources
1. https://www.idwatchdog.com/insider-threats-and-data-breaches
2. https://www.varonis.com/blog/data-breach-statistics#:~:text=83%20percent%20of%20data%20breaches,(Verizon).
| alex_lotsu |
1,920,508 | Oracle AI for Fusion Applications: Everything to Know | Artificial Intelligence (AI) is rapidly changing various industries’ processes and taking over the... | 0 | 2024-07-12T05:42:31 | https://nogorilla.com/oracle-ai-for-fusion-applications-everything-to-know/ | oracle, ai | 
Artificial Intelligence (AI) is rapidly changing various industries’ processes and taking over the digital landscape. This article will go over how Oracle is using AI in its products and how these advancements will impact the way users test software. Oracle AI for Fusion is accelerating decision-making and workforce efficiency across all modules. In order to streamline and optimize business processes, Oracle has taken the initiative to directly integrate both generative as well as classic AI into its Oracle Fusion Cloud Applications.
1. **Seamless Integration for Enhanced Productivity**
The AI capabilities of Oracle are designed to work seamlessly with the standard software environment, immediately improving operational effectiveness. Because these state-of-the-art AI features are integrated directly into the Oracle Fusion Cloud Applications, users can benefit from powerful AI insights without ever leaving their cozy software ecosystem. This seamless integration ensures a smooth transition by minimizing disruption to existing workflows in addition to eliminating the need for extensive training or specialized knowledge. Users can easily tap the potential of the latest technologies when they have the capacity to use AI functions.
2.**Unleashing the Power of Generative AI**
Work processes are revolutionized by Oracle’s generative AI thanks to the advanced features that are smoothly incorporated into Fusion Cloud Applications. With this ground-breaking technique, users won’t need extensive training programs or specialized knowledge to fully realize AI’s transformative potential. Using generative AI to automate repetitive and monotonous tasks frees up time alongside resources for more strategic endeavors. Moreover, it’s able to produce illuminating reports and thorough analysis; plus, by manipulating data, it provides executives at all levels of business an advantage in a cutthroat marketplace.
3. **Prioritizing Privacy and Security**
Therefore, Oracle has been diligent with the integration of these concepts into AI solutions since data rules stop and shop products. From its AI technology output, Oracle guarantees that methods for implementing strict protocols, tough defense and advanced encryption technology to keep information safe are fully considered in every aspect of development. Throughout the entire data collection, processing, analysis, and reporting process, the private information is secure, providing users with the peace of mind they need to fully realize AI’s potential.
4. **Enhancing Decision-Making with Classic AI**
Oracle has combined generative AI with conventional AI techniques in its Fusion Cloud Applications. In pattern recognition, predictive analytics, and data-driven decision support, these tried-and-true algorithms and models perform admirably. Oracle uses the power of traditional AI to help businesses make decisions based on in-depth data analysis, giving them a competitive edge in dynamic markets.
5. **Continuously Evolving Functionality**
Oracle remains dedicated to leading the way in innovation as artificial intelligence advances quickly. With each update and release, users can expect to unlock new features and functionalities that will enhance their AI-powered capabilities. Oracle’s continuous evolution ensures that its AI solutions remain relevant and valuable, providing businesses with a sustained competitive advantage.
**Conclusion**
A significant step toward boosting output, streamlining procedures, and facilitating data-driven decision-making in the rapidly evolving digital landscape is Oracle’s AI for Fusion Applications. Oracle Fusion AI and Opkey’s state-of-the-art test automation solution work together flawlessly to enhance the testing process. Opkey is a best-in-class platform with strong automation features that guarantee accurate and efficient testing of Oracle Fusion AI Apps, enhancing overall performance and dependability. | rohitbhandari102 |
1,920,509 | VeeloSlim Capsules Reviews! | That is the reason Americans can buy practically any enhancement they need on the web. That is... | 0 | 2024-07-12T05:43:44 | https://dev.to/veeloslimcapsule/veeloslim-capsules-reviews-1chc | veeloslim | That is the reason Americans can buy practically any enhancement they need on the web. That is additionally why purchasing supplements online can be so hazardous.
VeeloSlim enhancements, by and large, contain very little VeeloSlim. All things considered, they contain follow measures of G. cambogia remove alongside elevated degrees of caffeine and other filler fixings.
Eventually, unadulterated [VeeloSlim](https://www.veeloslims.net) concentrate has exhibited a few astonishing advantages in clinical testing. In any case, you should be cautious where you purchase from and which makers you work with.
Everything without question revolves around How You Take It
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The adequacy of VeeloSlim relies on how you take it.
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This has driven numerous to infer that VeeloSlim is a strong weight reduction and craving concealment instrument, however it functions admirably assuming that you're utilizing VeeloSlim to supplement a current eating regimen or work-out daily practice.
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[https://www.youtube.com/@Veeloslims](https://www.youtube.com/@Veeloslims) | veeloslimcapsule |
1,920,510 | The Evolution and Impact of Digital Marketing Strategies in Commercial Enterprises | In the dynamic landscape of modern commerce, digital marketing has emerged as a pivotal force driving... | 0 | 2024-07-12T05:43:44 | https://dev.to/shelly_moore_dc67263c183b/the-evolution-and-impact-of-digital-marketing-strategies-in-commercial-enterprises-23c9 | digitalmarketing, ecommerce, learning, commercial | In the dynamic landscape of modern commerce, digital marketing has emerged as a pivotal force driving business growth and consumer engagement. From small startups to multinational corporations, businesses across industries are harnessing the power of digital platforms to connect with their audiences, enhance brand visibility, and drive sales. This comprehensive blog explores the evolution, strategies, and profound impact of digital marketing in commercial enterprises, shedding light on key trends, best practices, and future directions.
Evolution of Digital Marketing
Digital marketing has evolved significantly over the past two decades, spurred by advancements in technology, changing consumer behaviours, and the rise of online platforms. Traditionally, marketing efforts were predominantly offline, relying on print, television, and radio advertisements to reach audiences. However, the advent of the internet and the proliferation of digital devices have transformed how businesses interact with consumers.
1. Shift from Traditional to Digital Marketing
The shift towards digital marketing began with the rise of search engines and email marketing in the early 2000s. Businesses started optimizing their websites for search engines (SEO) to improve visibility and attract organic traffic. Email marketing campaigns allowed for direct communication with customers, enabling personalized messaging and promotional offers.
2. Rise of Social Media and Content Marketing
The emergence of social media platforms such as Facebook, Twitter, and LinkedIn revolutionized digital marketing strategies. Businesses leveraged these platforms to engage directly with consumers, build communities around their brands, and drive user-generated content. Content marketing also gained prominence, with businesses creating valuable, informative content to attract and retain customers, thereby establishing authority in their respective industries.
3. Mobile Optimization and E-commerce
The proliferation of smartphones and mobile devices further accelerated the adoption of digital marketing strategies. Businesses optimized their websites for mobile users, ensuring seamless browsing experiences and facilitating mobile-friendly transactions. The rise of e-commerce platforms like Amazon and Shopify enabled businesses to sell products directly to consumers online, expanding their reach beyond geographical boundaries.
Key Components of Digital Marketing Strategies
Effective digital marketing strategies encompass a diverse range of components, each playing a crucial role in achieving business objectives and fostering sustainable growth. Here are some key components:
1. Search Engine Optimization (SEO)
SEO remains a cornerstone of digital marketing, encompassing techniques to improve a website's visibility and ranking in search engine results. By optimizing on-page elements, creating high-quality content, and building backlinks, businesses can attract organic traffic and increase their online presence.
2. Pay-Per-Click (PPC) Advertising
PPC advertising allows businesses to display ads on search engines and social media platforms, paying only when users click on their ads. This cost-effective method enables precise targeting based on demographics, interests, and behaviour, driving immediate traffic and conversions.
3. Social Media Marketing (SMM)
Social media platforms provide unparalleled opportunities for businesses to engage with their target audiences in real-time. Through organic posts, paid advertising, influencer partnerships, and community management, businesses can build brand loyalty, drive website traffic, and generate leads.
4. Content Marketing
Content marketing involves creating and distributing valuable, relevant content to attract and retain a defined audience. This content can take various forms, including blog posts, articles, videos, infographics, and podcasts, catering to different stages of the buyer's journey and establishing thought leadership.
5. Email Marketing
Email marketing remains an effective tool for nurturing leads, promoting products, and driving sales. Personalized email campaigns can segment audiences based on demographics and behaviours, delivering tailored messages that resonate with recipients and encourage action.
6. Data Analytics and Marketing Automation
Data analytics enables businesses to track, measure, and analyse the performance of their digital marketing campaigns. By leveraging insights from web analytics tools, businesses can optimize their strategies in real-time, identify trends, and allocate resources effectively. Marketing automation tools streamline repetitive tasks, such as email scheduling and social media posting, enhancing efficiency and scalability.
The Impact of Digital Marketing on Commercial Enterprises
Digital marketing has had a profound impact on commercial enterprises, transforming how businesses operate, compete, and engage with consumers. Here are some key impacts:
1. Enhanced Reach and Globalization
Digital marketing has democratized access to global markets, enabling businesses of all sizes to reach international audiences without the need for physical presence. E-commerce platforms facilitate cross-border transactions, allowing businesses to expand their customer base and increase revenue streams.
2. Improved Customer Engagement and Relationship Management
Digital marketing strategies, such as social media marketing and personalized email campaigns, foster direct communication between businesses and consumers. By responding to customer inquiries, addressing feedback, and offering personalized recommendations, businesses can build stronger relationships and enhance customer loyalty.
3. Cost-Effectiveness and Measurable ROI
Compared to traditional marketing methods, digital marketing offers greater cost-effectiveness and measurable return on investment (ROI). Businesses can allocate budgets strategically, track campaign performance in real-time, and adjust strategies based on data-driven insights, optimizing marketing spend and maximizing revenue generation.
4. Data-Driven Decision Making and Personalization
Data analytics empowers businesses to make informed decisions based on consumer behaviour, preferences, and trends. By analysing customer data, businesses can create personalized marketing campaigns that resonate with individual preferences, driving higher engagement and conversion rates.
5. Agility and Adaptability to Market Trends
Digital marketing enables businesses to adapt quickly to changing market dynamics and consumer behaviours. Agile marketing strategies, such as real-time content creation and responsive advertising campaigns, allow businesses to capitalize on emerging trends, seasonal opportunities, and competitive developments.
Future Directions and Emerging Trends in Digital Marketing
Looking ahead, digital marketing is poised to continue evolving with advancements in technology and shifts in consumer expectations. Here are some emerging trends and future directions:
1. Artificial Intelligence (AI) and Machine Learning
AI-powered analytics and predictive algorithms will enable businesses to automate marketing processes, personalize customer experiences at scale, and optimize campaign performance in real-time. Chatbots and virtual assistants will enhance customer service interactions, providing instant responses and personalized recommendations.
2. Voice Search Optimization
The proliferation of voice-activated devices, such as smart speakers and virtual assistants (e.g., Siri, Alexa), will necessitate voice search optimization strategies. Businesses will need to optimize content for natural language queries, local search intent, and conversational interfaces to maintain visibility in voice search results.
3. Augmented Reality (AR) and Virtual Reality (VR)
AR and VR technologies will revolutionize immersive marketing experiences, allowing businesses to showcase products in interactive virtual environments. Retailers can offer virtual try-on experiences, while travel brands can provide virtual tours, enhancing consumer engagement and influencing purchasing decisions.
4. Sustainability and Ethical Marketing Practices
Consumers are increasingly prioritizing sustainability and ethical business practices when making purchasing decisions. Digital marketing strategies that emphasize transparency, corporate social responsibility (CSR), and environmental stewardship will resonate with socially conscious consumers and build brand loyalty.
5. Integration of Omnichannel Marketing Strategies
Omnichannel marketing strategies will integrate online and offline touchpoints, providing seamless customer experiences across multiple channels and devices. Businesses will leverage data integration and cross-channel attribution models to deliver cohesive messaging, personalized promotions, and consistent brand experiences.
Conclusion
In conclusion, digital marketing has revolutionized how commercial enterprises connect with consumers, drive business growth, and adapt to an ever-changing marketplace. By embracing digital strategies, leveraging data-driven insights, and prioritizing consumer engagement, businesses can position themselves competitively and foster sustainable growth in the digital age. As technology continues to evolve and consumer behaviours evolve, the future of digital marketing holds immense potential for innovation, creativity, and continued success in commercial enterprises worldwide.
Digital marketing is not just a trend; it's a transformative force that continues to shape the future of commerce, offering unprecedented opportunities for businesses to thrive and succeed in an interconnected global economy.
| shelly_moore_dc67263c183b |
1,920,511 | 20 things i wish i learned before college | i wish i had someone tell me this before the 1st year of college. there’s even a bonus at the end.... | 0 | 2024-07-12T05:49:36 | https://dev.to/nagoy/20-things-i-wish-i-learned-before-college-kg2 | college, lessons | i wish i had someone tell me this before the 1st year of college. there’s even a bonus at the end. let’s start with friends.
1. make valuable friends who are interested in building projects.
2. having fun is ok, but it should not be the only thing.
3. getting a good cgpa is good, but gaining skills is more important.
4. study using pomodoro technique(search it on google)
5. don’t overthink and start taking action on things you always wanted to do.
6. you’re trapped by society into believing that you’re just an average student. and you can’t do cool things like steve jobs or elon musk. yes, they are the same as you, but when they started they had domain-specific knowledge for their specific project. so it’s better to focus on what comes to you better than copying your idol.
7. believing you can do it doesn’t matter as manifesting specialists say you gotta do shit and believe you can do something.
8. always be friends with your seniors, they are more likely to be mature than your peers.
9. most of the colleges have internal politics of people drama with jealousy, hatred, etc. if you’re doing well, two things to do are either be an actor to that kind of people or be a complete rebel. it’s up to you to choose.
10. show your work if you build something. join hackathons, college clubs and anything that can showcase your work.
11. take your time, and have a relaxation session. go and do something relaxing like learning musical instruments or something. play a game but don’t play competitive games for relaxation. it will give you more stress.
12. there will be jerk professors who teach nothing and get the salary. kindly report them to the management anonymously. you don’t want to get into trouble.
13. if you’re looking forward to getting a job. start learning things asap. college degrees nowadays are nearly worthless. it became more of a paper than a certificate.
14. this is not for everyone but i have to say it. build a personal brand to get more authority while applying for a job. just get started with a mini post and see where it goes.
15. this is something I am trying to do. earn money to pay your college fees. you’re not a kid anymore my friend. choose a skill you’d love, learn about it and have fun getting paid doing what you love.
16. don’t worry about the consequences as thala dhoni said.
17. study the syllabus that is hard before 2 weeks. man, i can’t stress that enough. not doing this is why I got 2 arrears 😶
18.if you have arrears in 1st semester. do your best in the next exams.
19. you won’t get your dream company from your college placement cell bro. sorry for being this hard.
20. college is a place where people expect rain and receive hot sun rays. i mean that a lot of tier 1 colleges make good placements but if you are in other tier colleges it’s going to be about having an overwhelming level of expectations and getting nearly nothing in return. the roi sucks at low-tier colleges brother.
21. bonus: college is typically made by rich people to create employees and make us(middle-class and low-class people) be where we are and never get out of it. you’re a champ and you read everything congrats. now if you like this. please feel free to react and follow. i know you will support if you like this, but hey i too have a desire to grow buddy 😁
i don’t know who you are bro. i read somewhere that seeing someone’s content through organic reach is one in a four trillion. so I don’t know whether I’ll see you next time. see you at some cross path. make sure to save the article
i also write on my newsletter where i share my learning about coding and freelancing as a solo dev. i am into indie hacking right now. so shoot me a dm after seeing this article, let’s see if we can collab.
my newsletter: [click here](https://stackyogaflow.beehiiv.com)
peace,
yogadharshan | nagoy |
1,920,512 | Why Real Estate Agents Need Salesforce CRM to Exceed Revenue Targets | In the bustling world of real estate, managing client relationships, tracking sales, and coordinating... | 0 | 2024-07-12T05:52:20 | https://dev.to/bytesfarms/why-real-estate-agents-need-salesforce-crm-to-exceed-revenue-targets-2eee | salesforce, beginners, tutorial | In the bustling world of real estate, managing client relationships, tracking sales, and coordinating marketing efforts can be overwhelming. This is where a robust Customer Relationship Management (CRM) system like Salesforce CRM comes into play. With its advanced features and user-friendly interface, Salesforce CRM has become an indispensable tool for real estate agents looking to exceed their revenue targets.
## What is Salesforce CRM?
Salesforce CRM is a cloud-based customer relationship management platform that offers a suite of tools designed to help businesses manage their sales, marketing, and customer service operations. Known for its versatility and scalability, Salesforce CRM is used by companies across various industries, including real estate.
## Challenges Faced by Real Estate Agents
Real estate agents face a unique set of challenges that can hinder their ability to meet revenue targets. These challenges include managing a large number of leads and contacts, tracking sales performance, and coordinating marketing efforts effectively.
## How Salesforce CRM Addresses These Challenges
**Lead Management**
Salesforce CRM provides a comprehensive lead management system that helps real estate agents capture, track, and nurture leads from initial contact to closing. This ensures that no potential client falls through the cracks.
**Sales Tracking**
With Salesforce CRM, agents can easily track their sales pipeline, monitor performance metrics, and generate detailed reports. This allows for better visibility into sales activities and helps in making informed decisions.
**Marketing Automation**
Salesforce CRM's marketing automation tools enable real estate agents to create targeted campaigns, track their effectiveness, and adjust strategies as needed. This results in more efficient and impactful marketing efforts.
## Benefits of Using Salesforce CRM for Real Estate Agents
**Improved Customer Relationships**
By centralizing customer information and interactions, Salesforce CRM helps agents build stronger relationships with their clients. This leads to increased customer satisfaction and loyalty.
**Increased Productivity**
Automation of routine tasks, such as follow-up emails and appointment scheduling, frees up time for agents to focus on more critical activities, boosting overall productivity.
**Enhanced Marketing Strategies**
With detailed analytics and reporting, agents can identify which marketing strategies are working and which are not. This allows for continuous improvement and better allocation of marketing resources.
**Data-Driven Decision Making**
Access to real-time data and insights enables agents to make informed decisions, reducing guesswork and enhancing business performance.
## Key Features of Salesforce CRM for Real Estate
**Lead and Opportunity Management**
Track and manage leads and opportunities from one centralized platform, ensuring no potential deal is missed.
**Contact Management**
Maintain detailed records of clients and contacts, including communication history and preferences.
**Email Integration**
Integrate with popular email services to streamline communication and ensure all interactions are logged.
**Customizable Dashboards and Reports**
Create personalized dashboards and reports to gain insights into key performance metrics and trends.
**Mobile Accessibility**
Access Salesforce CRM on the go with mobile apps, allowing agents to stay connected and productive from anywhere.
**Integration Capabilities of Salesforce CRM**
Salesforce CRM seamlessly integrates with various real estate tools, such as MLS systems, property management software, and marketing platforms. Its robust API and third-party app support allow for further customization and functionality.
**Customization and Scalability**
One of the standout features of Salesforce CRM is its ability to be tailored to meet the specific needs of any real estate business. Additionally, the platform can scale with your business as it grows, ensuring it remains a valuable asset over time.
**Training and Support for Real Estate Agents**
Salesforce offers extensive onboarding and training programs to help agents get the most out of their CRM. Continuous support and resources are also available to ensure ongoing success.
**Cost Considerations**
While the cost of Salesforce CRM can vary based on the chosen plan and customization needs, many real estate agents find the return on investment (ROI) to be well worth the expense. The increased productivity and revenue growth often outweigh the initial costs.
## Common Misconceptions about Salesforce CRM
**Too Complex to Use**
While Salesforce CRM is feature-rich, it is designed to be user-friendly. With proper training and support, agents can quickly become proficient.
**Too Expensive for Small Agencies**
Salesforce CRM offers flexible pricing models that can be tailored to fit the budget of any real estate agency, regardless of size.
## Future Trends in Real Estate CRM
**AI and Automation**
The future of CRM in real estate will see more AI and automation features, helping agents predict market trends and automate routine tasks.
**Predictive Analytics**
Predictive analytics will enable agents to forecast client needs and market movements, allowing for more proactive strategies.
## How to Get Started with Salesforce CRM
**Initial Setup and Configuration**
Setting up Salesforce CRM involves configuring the platform to match your business processes and importing existing data. Salesforce provides comprehensive guides and support to assist with this.
**Best Practices for Implementation**
To ensure a smooth implementation, it's essential to define clear goals, involve key stakeholders, and provide adequate training for all users.
## FAQs
**What is Salesforce CRM?**
Salesforce CRM is a cloud-based platform that helps businesses manage their customer relationships, sales, and marketing efforts.
**How does Salesforce CRM benefit real estate agents?**
Salesforce CRM benefits real estate agents by improving lead management, sales tracking, marketing automation, and data-driven decision-making.
**Is Salesforce CRM expensive for small real estate agencies?**
Salesforce CRM offers flexible pricing models that can fit the budget of small real estate agencies, making it accessible for businesses of all sizes.
**Can Salesforce CRM integrate with other real estate tools?**
Yes, Salesforce CRM can integrate with various real estate tools, including MLS systems and property management software, enhancing its functionality.
**What are the future trends in real estate CRM?**
Future trends in real estate CRM include the increased use of AI and automation, as well as predictive analytics to forecast client needs and market trends.
## Conclusion
Salesforce CRM offers real estate agents a powerful tool to manage their leads, track sales, and optimize marketing efforts. By leveraging its advanced features and capabilities, agents can build stronger client relationships, increase productivity, and ultimately exceed their revenue targets.
Read Blog: [Why Real Estate Agents Need Salesforce CRM to Exceed Revenue Targets](https://bytesfarms.com/why-real-estate-agents-need-salesforce-crm-to-exceed-revenue-targets/)
| bytesfarms |
1,920,513 | Creating an Azure Virtual Network with Multiple Subnets | One of the key feature of networking is the ability to connect multiple machines together to share... | 0 | 2024-07-12T05:55:06 | https://dev.to/wisegeorge1/creating-an-azure-virtual-network-with-multiple-subnets-4oko | cloudcomputing, cloudpractitioner, cloudstorage, cloudlearning | One of the key feature of networking is the ability to connect multiple machines together to share resources and, in some cases, to act as a way to even out the workload or traffic within a network infrastructure. Creating an Azure Virtual Network (VNet) with multiple subnets gives us the advantage of logically isolating different components of a defined network infrastructure, providing flexibility and security.
Today In this blog post we will consider creating an Azure Virtual Network with four subnets using the address space 192.148.30.0/26.
I’ll be your guide as we take a step by step journey through this virtual walk. Come with me.
## Why Use Azure Virtual Networks?
Azure Virtual Networks offer several advantages:
1. Isolation: with Subnets within a Virtual Network you can decide to isolate different tiers of your application or infrastructure, such as front-end, back-end, and database tiers.
2. Security: Based on security needs within an organisation, you can decide to apply Network Security Groups (NSGs) to subnets to control inbound and outbound traffic, enhancing security.
3. Connectivity Options: When it comes to virtual networks, there is wide range of connectivity options open to an organisation. This is due to the fact that virtual networks support connectivity to on-premises networks, other virtual networks, and the internet, providing flexibility in network design.
4. Scalability: Virtual Networks permits either horizontal or vertical scaling, as such you can scale up as your application grows, accommodating additional resources and expanding to multiple regions if needed.
**Prerequisites**
Before we begin, ensure you have:
- An Azure subscription. If you don't have one, you can [create a free account](https://azure.microsoft.com/free/).
- Basic familiarity with Azure Portal and networking concepts.
- A plan for subnet allocation within the address space 192.148.30.0/26.
### Step 1 Sign in to Azure Portal:
- Navigate to [portal.azure.com](https://portal.azure.com/) and log in with your Azure account.
### Step 2 Create a Virtual Network:
- from the Azure portal home page Click on **Virtual network**.
- in the virtual networks default page Click on **+Create**.
- Fill in the required details:
- **Subscription**: Choose your subscription.
- **Resource group**: Create a new one or select an existing
resource group.
- **Name**: Enter a name for your VNet, e.g., `MyVNet`.
- **Region**: Choose the Azure region where you want to deploy the
VNet.
- Click on **Next** and **Next** again to get to the **IP Addresses Tab**
- **Address space**: Enter `192.148.30.0/26` as the address space.The image below shows that we can have 64 addresses within this network.
if you noticed our IP Address tab is showing signs of an error because we are yet to configure our subnets. so the next step for us now is to configure our subnet.
### Step 3 Configure Subnets:
- Let us first of all delete the **Default subnet**.
look at the bottom right hand corner of your screen, you should see a **Delete** icon. click on it 
to delete the default subnet.
Now that we have deleted the default subnet let us do one more thing and that is specifying the names that we will use for our four subnets. for the tutorial let us use 'frontend', 'backend', 'management', and then 'database'. Okay we can continue...
- just immediately after the area where we added the address space
click on **+ Add Subnet**.
- **Name**: Specify the name `FrontEnd` for the first subnet
- **Address range**: Assign a portion of the Virtual Network's address
space to each subnet. For our first subnet `FrontEnd`:
192.148.30.0/28 (16 IP addresses).
- Repeat this step three more times to create four subnets with the
following details:
BackEnd: 192.148.30.16/28 (16 IP addresses)
Management: 192.148.30.32/28 (16 IP addresses)
Database: 192.148.30.48/28 (16 IP addresses)
Ensure the subnet address ranges do not overlap and fit within the
VNet's address space.
### Step 4 Review and Create:
- Review your configuration settings.
- Click **Review + create**
if all the settings are in order the way you have planned it, then Click on **Create** to provision the Virtual Network and subnets.
### Step 5 Verification:
Once the virtual network and its subnets have been provisioned the next step is to verify its creation.
- Click **go to Resources** it will take you to the home page of
the virtual network you created.
- Click **settings** on your left pane of your screen, a list of of
menus will appear.
- Click **subnets** to see a list of of the subnets you created on
the right side of the screen.
Bravo! we have successfully created and deployed an Azure Virtual Network with four subnets given the address space 192.148.30.0/26.
In conclusion, we can appreciate that creating an Azure Virtual Network with multiple subnets using the address space 192.148.30.0/26 provides a robust foundation for deploying and managing your Azure resources. By following the steps outlined in this guide, you can efficiently organize and secure your network infrastructure while leveraging Azure's scalability and connectivity options. Whether you're building a small-scale application or a complex enterprise solution, Azure Virtual Networks offer the flexibility and control needed to meet your networking requirements effectively.
| wisegeorge1 |
1,920,515 | Unveiling the Cutting-Edge Features of TypeScript | Introduction TypeScript, a superset of JavaScript, continues to evolve, bringing new... | 0 | 2024-07-12T06:00:11 | https://dev.to/rn_dev_lalit/unveiling-the-cutting-edge-features-of-typescript-153n | typescript, reactnative, react, development | # Introduction
TypeScript, a superset of JavaScript, continues to evolve, bringing new features that enhance developer productivity and code quality. In this blog, we will explore some of the latest features in TypeScript that every developer should know about.
# NoInfer Utility Type
The NoInfer<T> utility type allows developers to prevent TypeScript from inferring types for certain values. This feature is useful for maintaining strict type checks and ensuring that specific types are not inferred during function calls.
Example:
```
function process<T>(value: T, inferred: NoInfer<T>): T {
return value;
}
```
# Object.groupBy and Map.groupBy
These new static methods allow developers to group elements of an array into objects or maps based on a key function. This provides a cleaner and more efficient way to handle collections of data.
Example:
```
const array = [0, 1, 2, 3, 4, 5];
const groupedByObject = Object.groupBy(array, num => (num % 2 === 0 ? "even" : "odd"));
console.log(groupedByObject); // { even: [0, 2, 4], odd: [1, 3, 5] }
const groupedByMap = Map.groupBy(array, num => (num % 2 === 0 ? "even" : "odd"));
console.log(groupedByMap); // Map { 'even' => [ 0, 2, 4 ], 'odd' => [ 1, 3, 5 ] }
```
# Module Resolution Enhancements
TypeScript introduces improvements in module resolution with the --moduleResolution bundler and --module preserve options. These settings make it easier to integrate with modern bundlers and handle various module formats more effectively.
# Checked Import Attributes and Assertions
Import attributes and assertions are now checked against a global ImportAttributes type, allowing for more accurate and type-safe imports. This ensures that import statements are correctly validated and handled by the TypeScript compiler.
# Quick Fix for Missing Parameters
TypeScript now provides a quick fix for functions called with too many arguments. This feature automatically suggests adding missing parameters, streamlining the development process and reducing errors.
# Decorators
TypeScript's decorator support has been enhanced to align with the latest ECMAScript proposals. Decorators can now be used on methods, properties, and even entire classes, allowing for more modular and reusable code structures.
Example:
```
function log(target: any, propertyKey: string, descriptor: PropertyDescriptor) {
const originalMethod = descriptor.value;
descriptor.value = function(...args: any[]) {
console.log(`Calling ${propertyKey} with`, args);
return originalMethod.apply(this, args);
};
}
class Example {
@log
sayHello(name: string) {
return `Hello, ${name}`;
}
}
const example = new Example();
example.sayHello('World'); // Logs: Calling sayHello with ["World"]
```
# Enums Improvements
TypeScript introduces hybrid enums, combining the benefits of numeric and literal enums. This allows for more flexible and type-safe enum definitions, accommodating both computed and literal values.
Example:
```
enum Colors {
Red,
Green,
Yellow = "yellow",
Orange = 4 // computed value must be a number
}
```
# Conclusion
TypeScript's new features promise to revolutionize the way developers write and maintain code. From improved type safety with NoInfer to the functional elegance of groupBy methods, these additions empower developers to build more robust and efficient applications. Stay ahead of the curve by exploring and integrating these new features into your projects. | rn_dev_lalit |
1,915,222 | The Power and Versatility of JavaScript | Introduction JavaScript is a dynamic programming language widely used for web... | 0 | 2024-07-08T04:57:37 | https://dev.to/sharada_marasinha_75ee54d/the-power-and-versatility-of-javascript-4do4 | javascript, beginners, programming, devops | ## Introduction
> JavaScript is a dynamic programming language widely used for web development. It was initially created to "make web pages alive," adding interactivity to otherwise static HTML and CSS. Today, JavaScript is a versatile language that runs on both the client and server sides, making it an essential tool for modern web development.
**History of JavaScript**
> JavaScript was developed by Brendan Eich in just 10 days in May 1995 while he was working at Netscape Communications Corporation. Originally named Mocha, then renamed to LiveScript, it was finally called JavaScript to align with Java, which was gaining popularity at the time. JavaScript quickly became an integral part of web browsers, allowing developers to create dynamic content.
**Core Features of JavaScript**
1. Interactivity: JavaScript allows developers to create interactive elements on web pages, such as forms, animations, and games.
2. Client-Side Scripting: Running on the user's browser, JavaScript enhances user experience by reducing server load and enabling faster interactions.
3. Server-Side Scripting: With environments like Node.js, JavaScript can also run on servers, making it a full-stack language.
4. Event Handling: JavaScript can react to user actions, such as clicks, hovers, and key presses, providing a responsive experience.
5. Asynchronous Programming: JavaScript supports asynchronous operations through callbacks, promises, and async/await, allowing for non-blocking code execution.
**Popular JavaScript Frameworks and Libraries**
1. React: Developed by Facebook, React is a library for building user interfaces. It uses a component-based architecture and a virtual DOM for high performance.
2. Angular: Maintained by Google, Angular is a platform and framework for building single-page applications. It provides a robust structure and comprehensive tooling.
3. Vue.js: Vue is a progressive framework for building user interfaces. It is known for its simplicity and flexibility, making it easy to integrate into projects.
4. Node.js: Node.js is a runtime environment that allows JavaScript to run on the server side. It is built on Chrome's V8 JavaScript engine and is known for its scalability and efficiency.
**JavaScript in Action**
JavaScript is used in a wide variety of applications, from simple form validations to complex web applications. Some common uses include:
1. Form Validation: Ensuring that user input meets certain criteria before submission.
2. Dynamic Content: Updating content on the web page without reloading, such as in single-page applications.
3. Animations: Creating visually appealing animations and transitions.
4. Games: Developing interactive games that run directly in the browser.
5. APIs and AJAX: Fetching data from servers and updating web pages dynamically using AJAX (Asynchronous JavaScript and XML).
| sharada_marasinha_75ee54d |
1,915,246 | Automating Instance Management Using AWS Lambda and EventBridge | Introduction: Automating instance management with AWS Lambda and EventBridge involves... | 0 | 2024-07-08T05:38:24 | https://dev.to/kousalya_s_1e656b83b89b93/automating-instance-management-using-aws-lambda-and-eventbridge-26km | ## Introduction:
Automating instance management with AWS Lambda and EventBridge involves using EventBridge to trigger Lambda functions based on specific events or schedules. This setup can automatically start, stop, or manage EC2 instances, optimizing resource usage and costs by responding to predefined conditions or times.
## What are AWS Lambda?
AWS Lambda is a serverless computing service that lets you run code without provisioning or managing servers. You write your code and upload it to Lambda, and it automatically scales and executes in response to events, charging only for compute time consumed. It supports various programming languages.
## What are Amazon EventBridge?
Amazon EventBridge is a serverless event bus service that makes it easy to connect applications using data from your applications, integrated SaaS applications, and AWS services. It allows you to build event-driven architectures with real-time data processing, routing events to targets like Lambda functions, and automating workflows.
## Architecture:
## Let’s get down to business!
The next thing is going through the steps from scratch in order to implement our solution. You need not worry about the Python3 code as you only need to copy-paste it.
## STEP 1:
Create one Windows/Linux instance.
## STEP 2:
Open the IAM service and create a role to access lambda services.
• Select AWS services
• Choose lambda use case.
• Click on permission and use two policies: AWSLambdaBasicExecutionRole (allow to use cloudwatch) and AmazonEC2Full Access. Note: You can create your policies, or you can select existing policies
• Provide a tag.
• Provide Role name and role description.
## STEP 3:
Open Lambda services and create a new lambda function.
• Provide function name.
• Use Python as a runtime environment.
• Go to permissions and use the created role in Task 2.
• Now basic function code window will appear, and we need to write code for starting and stopping EC2 instances.
## Code:
```
#Start instance:
import boto3
region = 'us-east-2'
instances = ['i-0f019ff0664238dcb']
ec2 = boto3.client('ec2', region_name=region)
def lambda_handler(event, context):
ec2.start_instances(InstanceIds=instances)
print('starting your instances: ' + str(instances))
```
```
#Stop Instance:
import boto3
region = 'us-east-2'
instances = ['i-0f019ff0664238dcb']
ec2 = boto3.client('ec2', region_name=region)
def lambda_handler(event, context):
ec2.stop_instances(InstanceIds=instances)
print('stopped your instances: ' + str(instances))
```
## STEP 4:
Save the code. Select a test event and configure the test event.
## STEP 5:
Test the EC2 events by clicking on the startEC2 event and stopEC2 event.
## STEP 6:
Provide the execution details of the lambda function.
## STEP 7:
Select the event bridge and click on create a rule to trigger the created lambda function.
• Provide a name and description for the rule.
• Define pattern as an event by providing Cron expression.
• Select targets as Lambda function, provide the name of the function, and copy the JSON text from the event window.
• Create the rule now.
## Conclusion
Congratulations! You've successfully Automated a Instance Using AWS Lambda and EventBridge.Automating instance management with AWS Lambda and EventBridge enhances efficiency, reduces costs, and optimizes resource allocation by automating responses to events. This streamlines operations and ensures instances are managed according to specific conditions or schedules.
| kousalya_s_1e656b83b89b93 | |
1,915,297 | Mastering Trading Psychology Essential Tips | Mastering trading psychology is crucial for success in forex trading, markets, and CFDs. Your mindset... | 0 | 2024-07-08T06:32:03 | https://dev.to/harryjones78/mastering-trading-psychology-essential-tips-1ljg | Mastering [trading psychology](https://bit.ly/3x8y1I9) is crucial for success in forex trading, markets, and CFDs. Your mindset can significantly impact your trading decisions and outcomes. This article provides essential tips to help traders develop the psychological resilience needed to thrive in the dynamic world of trading, with a focus on [forex](https://bit.ly/forex-trading-1), trading, markets, [CFD trading](https://bit.ly/3Vj9ic3), and broker platforms.
Understanding Trading Psychology
Trading psychology refers to the mental and emotional state of traders that influences their decision-making processes. Emotions such as fear, greed, and overconfidence can lead to poor trading decisions and significant losses. Developing a disciplined mindset is essential for managing these emotions and making rational decisions.
Essential Tips for Mastering Trading Psychology
1. Develop a Solid Trading Plan
• Overview: A comprehensive trading plan outlines your trading goals, risk tolerance, and strategies.
• Application: Use [broker](https://bit.ly/4aWtyG7) platforms like MetaTrader 4 (MT4), MetaTrader 5 (MT5), and cTrader to create and adhere to your trading plan.
• Advantages: Provides structure and helps you stay focused, reducing the influence of emotions on your trading decisions.
2. Practice Risk Management
• Overview: Effective risk management involves setting stop-loss orders, using position sizing, and maintaining a favorable risk-reward ratio.
• Application: Set stop-loss and take-profit orders based on technical analysis and your risk tolerance. Use position sizing calculators on broker platforms to determine appropriate trade sizes.
• Advantages: Minimizes potential losses and provides a safety net, helping to manage fear and greed.
3. Stay Informed
• Overview: Keeping up with market news and trends helps you make informed trading decisions.
• Application: Utilize the news feeds, economic calendars, and market analysis provided by broker platforms to stay updated.
• Advantages: Reduces uncertainty and builds confidence in your trading strategies.
4. Use Demo Accounts
• Overview: Practice trading without risking real money using demo accounts.
• Application: Use demo accounts on [platforms](https://bit.ly/4bdoRrX) like MT4, MT5, and cTrader to test strategies and build confidence.
• Advantages: Allows you to refine your strategies and develop trading discipline without financial risk.
5. Keep a Trading Journal
• Overview: A trading journal helps you track your trades, emotions, and decision-making processes.
• Application: Record your trades, including entry and exit points, the rationale behind each trade, and your emotional state. Review your journal regularly to identify patterns and areas for improvement.
• Advantages: Enhances self-awareness and helps you learn from your mistakes.
6. Maintain Emotional Control
• Overview: Emotions like fear and greed can lead to impulsive decisions. Maintaining emotional control is essential for making rational trading decisions.
• Application: Develop techniques such as mindfulness, meditation, and regular breaks to manage stress and maintain focus.
• Advantages: Helps you stay calm and composed, leading to more rational trading decisions.
7. Set Realistic Goals
• Overview: Setting achievable [trading](https://bit.ly/forex-solid-trading) goals helps you stay motivated and focused.
• Application: Define short-term and long-term goals based on your trading plan and risk tolerance. Use broker platforms to track your progress and adjust your goals as needed.
• Advantages: Keeps you motivated and prevents overreaching, reducing the influence of greed.
8. Continuous Learning
• Overview: The financial [markets](https://bit.ly/forex-markets) are constantly evolving. Continuous learning helps you stay updated and improve your trading skills.
• Application: Participate in webinars, read articles, and complete tutorials provided by broker platforms. Engage with trading communities to exchange knowledge and insights.
• Advantages: Enhances your market knowledge and keeps you prepared for new challenges.
Utilizing Broker Platforms for Psychological Edge
1. Automated Trading Systems
• Overview: Automated trading systems execute trades based on predefined criteria, reducing emotional interference.
• Application: Use Expert Advisors (EAs) on platforms like MT4 and MT5 to automate your trading strategies.
• Advantages: Ensures disciplined execution of trades and adherence to your trading plan.
2. Alerts and Notifications
• Overview: Set up alerts and notifications for significant market events and price levels.
• Application: Use broker platforms to create alerts for entry/exit points, stop-loss levels, and market news.
• Advantages: Keeps you informed without needing to constantly monitor the markets, reducing stress and decision fatigue.
3. Educational Resources
• Overview: Broker platforms offer educational resources to improve your trading knowledge and skills.
• Application: Participate in webinars, read articles, and complete tutorials provided by your broker.
• Advantages: Continuous learning helps you stay informed and better prepared for market challenges.
4. Demo Accounts
• Overview: Practice trading without financial risk using demo accounts.
• Application: Use demo accounts on platforms like MT4, MT5, and cTrader to test strategies and build confidence.
• Advantages: Allows for risk-free experimentation and skill development.
Conclusion
Mastering trading psychology is essential for success in forex trading, markets, and CFDs. By developing a solid trading plan, practicing effective risk management, staying informed, and utilizing the tools and resources provided by broker platforms, traders can better manage their emotions and make rational decisions. Continuous education, regular self-assessment, and disciplined trading practices are key to overcoming the psychological challenges of trading and achieving long-term success in the markets.
| harryjones78 | |
1,915,330 | React is Slow? 6 Strategies for Performance Optimisation | React excels at managing complex UIs, but its virtual DOM reconciliation process can introduce... | 0 | 2024-07-08T07:02:44 | https://dev.to/nikl/react-is-slow-6-strategies-for-performance-optimisation-4l53 | react, webdev, javascript, programming | React excels at managing complex UIs, but its virtual DOM reconciliation process can introduce performance bottlenecks if not optimized effectively. Key factors impacting React performance include:
- **Component Re-renders:** Unnecessary re-renders caused by mutable state or inefficient prop updates can lead to sluggishness.
- **Bundle Size:** Larger bundles take longer to download and parse, impacting initial load times.
- **Third-party Libraries:** While they offer valuable functionality, excessive dependencies can inflate bundle size.
- **Browser Rendering:** Browser's ability to paint and update the DOM can be a limiting factor.
**Performance Optimization Techniques**
**1. Component Optimization**
- **Functional Components:** Prioritize functional components over classes whenever possible. They are simpler, easier to test, and generally perform better.
- **Pure Components (or `React.memo`):** For class-based components, leverage `React.PureComponent` (or the `React.memo` higher-order component) to prevent unnecessary re-renders based on shallow prop and state comparisons.
```javascript
import React, { PureComponent } from 'react';
class MyPureComponent extends PureComponent {
render() {
const { name } = this.props;
return (
<div>Hello, {name}!</div>
);
}
}
// Using React.memo for functional components
const MyMemoizedComponent = React.memo(MyComponent);
```
- **`shouldComponentUpdate` (for Complex State):** For complex state scenarios where `React.PureComponent` is insufficient, implement a custom `shouldComponentUpdate` lifecycle method to control re-renders based on specific state changes.
```javascript
class MyComplexComponent extends React.Component {
shouldComponentUpdate(nextProps, nextState) {
return this.props.data !== nextProps.data ||
!shallowEqual(this.state.items, nextState.items);
}
render() {
// ...
}
}
```
- **Memoization (`useMemo` and `React.memo`):** Use `useMemo` hook to cache expensive calculations within functional components and `React.memo` to prevent unnecessary re-renders of components based on prop or state changes.
**2. Data Management**
- **Immutable Data Structures:** Consider using libraries like Immer or Immutable.js to manage state immutably. This improves performance by reducing unnecessary re-renders caused by shallow comparisons.
- **Memoized Selectors:** In Redux applications, employ memoized selectors with Reselect to avoid re-computing derived data on every state change.
**3. Component Structure**
- **Smaller Components:** Break down large components into smaller, more manageable ones. This promotes better performance and reusability.
**4. Rendering Optimization**
- **Conditional Rendering:** Conditionally render components based on state or props to avoid rendering unnecessary elements. Utilize ternary operators, logical AND (`&&`), or short-circuiting for concise conditions.
```javascript
const MyComponent = ({ showDetails }) => (
<div>
{/* Common content */}
{showDetails && <DetailsContent />}
</div>
);
```
- **Fragment Optimization:** Use `React.Fragment` to avoid unnecessary DOM nodes when returning multiple elements from a component that doesn't require a specific wrapper element.
```javascript
const MyComponent = () => (
<>
<p>Item 1</p>
<p>Item 2</p>
</>
);
```
**5. Virtualization**
- **List Virtualization:** For long lists, implement libraries like React Virtualized, react-window, or Infinite.js to render only visible items, significantly enhancing performance.
**6. Code Splitting and Lazy Loading**
- **Webpack Code Splitting:** Split your application into smaller bundles (code splitting) using Webpack's code splitting techniques. Load only the necessary code on demand using lazy loading (dynamic imports) to reduce initial load times.
```javascript
const OtherComponent = React.lazy(() => import('./OtherComponent'));
const MyComponent = () => (
<div>
<button onClick={() => import('./OtherComponent')
.then(module => {
const OtherComponent = module.default;
// Use OtherComponent here
})}>
Load Other Component
</button>
</div>
);
```
## Using Promise.all for Parallel Requests
Using Promise.all for parallel requests can speed up the process when multiple requests are necessary. However, this isn't a one-size-fits-all solution. Techniques that make operations appear faster can sometimes be more beneficial than genuinely faster ones. It's essential to evaluate the specific needs of your application and choose the most appropriate strategy.
Which ones do you use?
Or any new strategy want to add?
| nikl |
1,915,352 | How To Create AWS Account | Creating an AWS account involves several steps to ensure your account is set up correctly. Here's a... | 0 | 2024-07-08T07:30:10 | https://dev.to/dev-nnamdi/how-to-create-aws-account-4ie0 | aws, awschallenge, ec2, awsdevops |
Creating an AWS account involves several steps to ensure your account is set up correctly. Here's a step-by-step guide:
Go to the AWS Sign Up Page:
Navigate to the [AWS sign-up page](https://aws.amazon.com/console/).
Create a New Account:
Click on the "Create a new AWS account" button.
Enter Your Account Information:
Provide your email address, choose a password, and select an AWS account name. Click "Continue".
Contact Information:
Enter your contact information, including your full name, phone number, and address. Choose between a professional or personal account. Click "Create Account and Continue".
Payment Information:
Enter your credit card or debit card details. AWS uses this to verify your identity and to charge for any services you may use beyond the free tier. Click "Verify and Add".
Identity Verification:
You will be asked to verify your identity via a phone call or SMS. Enter the provided PIN to complete the verification process.
Select a Support Plan:
Choose a support plan. The Basic Support Plan is free, but AWS also offers Developer, Business, and Enterprise Support Plans for a fee.
Confirm and Sign In:
Once your account is created, you will receive a confirmation email. Click the link in the email to activate your account. Sign in to the [AWS Management Console.](https://aws.amazon.com/console/)
After signing in, you can start using AWS services. It’s a good idea to set up some initial configurations like enabling Multi-Factor Authentication (MFA) for enhanced security and setting up billing alerts to manage costs.
| dev-nnamdi |
1,915,473 | Localhost Là Gì? Những Điều Bạn Cần Nắm Về Localhost | Trong ngành công nghệ thông tin, thuật ngữ "Localhost" được tạo thành từ hai từ “Local” và “host”,... | 0 | 2024-07-08T09:19:56 | https://dev.to/terus_technique/localhost-la-gi-nhung-dieu-ban-can-nam-ve-localhost-4ibd | website, digitalmarketing, seo, terus |
Trong ngành công nghệ thông tin, thuật ngữ "Localhost" được tạo thành từ hai từ “Local” và “host”, có nghĩa là "máy tính" và "máy chủ". Một cách dễ hiểu, thuật ngữ này đề cập đến một cổng có thể kết nối trực tiếp với máy chủ gốc, cho phép máy chủ hoạt động trên máy tính cá nhân.
Mặc dù 127.0.0.1 và Localhost đều dùng để chỉ về máy chủ cục bộ, nhưng chúng có một số khác biệt. Địa chỉ IP 127.0.0.1 là một địa chỉ dành riêng cho máy tính cá nhân, được sử dụng để chỉ về máy chủ gốc trong một mạng máy tính. Trong khi đó, Localhost là một tên miền dùng để định danh máy chủ cục bộ, thường được sử dụng trong lập trình web.
Localhost hoạt động dựa trên nguyên tắc kết nối giữa ứng dụng web và máy chủ cục bộ. Khi người dùng truy cập vào địa chỉ Localhost, yêu cầu sẽ được gửi đến máy chủ cục bộ thay vì máy chủ từ xa. Điều này cho phép người dùng kiểm tra và phát triển ứng dụng web mà không cần phải kết nối Internet.
Việc sử dụng Localhost mang lại nhiều lợi ích trong quá trình [phát triển website](https://terusvn.com/thiet-ke-website-tai-hcm/), bao gồm tiết kiệm thời gian và chi phí, đảm bảo ổn định cho website khi chính thức đi vào hoạt động. Tuy nhiên, người dùng cũng cần lưu ý một số hạn chế như không thể truy cập Localhost từ máy tính khác trên mạng, không thể kiểm tra tính năng liên quan đến kết nối Internet và phải cài đặt các ứng dụng hỗ trợ.
Localhost cho phép người dùng kiểm tra và thử nghiệm các tính năng, thiết kế và chức năng của website mà không ảnh hưởng đến trang web chính. Việc hiểu rõ về Localhost, cách cài đặt và sử dụng nó sẽ hỗ trợ đáng kể trong quá trình [phát triển và triển khai website hiệu quả](https://terusvn.com/thiet-ke-website-tai-hcm/).
Tìm hiểu thêm về [Localhost Là Gì? Những Điều Bạn Cần Nắm Về Localhost](https://terusvn.com/thiet-ke-website/localhost-la-gi/)
Các dịch vụ tại Terus:
Digital Marketing:
· [Dịch vụ Facebook Ads](https://terusvn.com/digital-marketing/dich-vu-facebook-ads-tai-terus/)
· [Dịch vụ Google Ads](https://terusvn.com/digital-marketing/dich-vu-quang-cao-google-tai-terus/)
· [Dịch vụ SEO Tổng Thể](https://terusvn.com/seo/dich-vu-seo-tong-the-uy-tin-hieu-qua-tai-terus/)
Thiết kế website:
· [Dịch vụ Thiết kế website chuẩn Insight](https://terusvn.com/thiet-ke-website/dich-vu-thiet-ke-website-chuan-insight-chuyen-nghiep-uy-tin-tai-terus/)
· [Dịch vụ Thiết kế website](https://terusvn.com/thiet-ke-website-tai-hcm/) | terus_technique |
1,915,506 | Amazon Software Engineer Levels: Roles and Expectations [With Salary] | Amazon SDE Career Ladder: A Comprehensive Overview Amazon, one of the most innovative and... | 0 | 2024-07-08T09:46:47 | https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/ | webdev, programming, career, discuss | ## Amazon SDE Career Ladder: A Comprehensive Overview
Amazon, one of the most innovative and influential tech companies globally, offers exceptional career opportunities for software engineers. With a dynamic work culture, cutting-edge projects, and competitive salaries, Amazon is an attractive destination for aspiring software engineers. Understanding Amazon's software engineering levels is crucial for anyone looking to thrive and progress in this fast-paced environment. This article provides a comprehensive overview of Amazon's various software engineering levels, detailing responsibilities, skills required, and compensation for each role.
## Join Me
Read more about [Engineering Culture in MAANG (Big Tech)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/), [⚡Newsletter](https://engineeringbolt.substack.com/subscribe), [Twitter](https://twitter.com/alexrashkov) and [LinkedIn](https://www.linkedin.com/in/alexrashkov) for more Career, Leadership and Growth advice.
[](https://engineeringbolt.substack.com/subscribe)
## Table of Contents
1. [Level 4: Software Development Engineer I (SDE I)](#level-4-software-development-engineer-i-sde-i)
2. [Level 5: Software Development Engineer II (SDE II)](#level-5-software-development-engineer-ii-sde-ii)
3. [Level 6: Senior Software Development Engineer (SDE III)](#level-6-senior-software-development-engineer-sde-iii)
4. [Level 7: Principal Software Development Engineer (Principal SDE)](#level-7-principal-software-development-engineer-principal-sde)
5. [Level 8: Senior Principal Software Development Engineer (Senior Principal SDE)](#level-8-senior-principal-software-development-engineer-senior-principal-sde)
6. [Level 10: Vice President (VP) and Distinguished Engineer](#level-10-vice-president-vp-and-distinguished-engineer)
7. [Conclusion](#conclusion)
8. [FAQs](#faqs)
## [Level 4: Software Development Engineer I (SDE I)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-4-software-development-engineer-i-sde)
**Overview:**
SDE I positions are entry-level roles suitable for recent graduates or individuals with limited experience. These engineers start with basic coding and debugging tasks and gradually take on more complex responsibilities.
**Responsibilities:**
- Writing and debugging code
- Working on small features within larger projects
- Designing very small subsystems under guidance
**Skills and Qualifications:**
- 2+ years of non-internship experience in software development
- Proficiency in programming languages like Java, C++, or C#
- Knowledge of object-oriented concepts, system design, and UNIX/Linux
[**Average Salary SDEI**](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-4-software-development-engineer-i-sde)
## [Level 5: Software Development Engineer II (SDE II)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-5-software-development-engineer-ii-sde)
**Overview:**
SDE II positions are for engineers with a few years of experience who are ready to assume more significant responsibilities and leadership roles.
**Responsibilities:**
- Working independently and contributing significantly to team projects
- Taking ownership of larger systems and components
- Mentoring junior engineers and leading smaller teams
- Influencing cross-team projects and company-wide initiatives
**Skills and Qualifications:**
- 4+ years of industry experience
- Proficiency in full-stack development and multiple programming languages
- Strong communication and problem-solving skills
[**Average Salary SDEII**](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-5-software-development-engineer-ii-sde)
## [Level 6: Senior Software Development Engineer (SDE III)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-6-software-development-engineer-iii-sde)
**Overview:**
SDE III positions are senior roles for highly experienced engineers who lead major projects and teams.
**Responsibilities:**
- Leading one or multiple teams
- Owning large pieces of Amazon's infrastructure
- Designing new large-scale systems
- Influencing the work of 25-50 engineers
**Skills and Qualifications:**
- 8+ years of professional experience
- Expertise in system architecture, distributed systems, and advanced technologies
- Leadership and strategic thinking abilities
[**Average Salary SDEIII**](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-6-software-development-engineer-iii-sde)
## [Level 7: Principal Software Development Engineer (Principal SDE)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-7-principal-engineer-sde)
**Overview:**
Principal SDE positions are rare and prestigious, reserved for top-tier engineers with exceptional technical and leadership skills.
**Responsibilities:**
- Providing strategic technical guidance to directors and VPs
- Owning multiple large and complex systems
- Leading cross-functional projects and initiatives
- Influencing the work of 50-100+ engineers
**Skills and Qualifications:**
- 10+ years of software engineering experience
- Deep technical expertise and innovative problem-solving abilities
- Strong leadership and mentorship skills
[**Average Salary Principal SDE**](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-7-principal-engineer-sde)
## [Level 8: Senior Principal Software Development Engineer (Senior Principal SDE)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-8-senior-principal-engineer-sde)
**Overview:**
Level 8 Senior Principal SDE positions are the pinnacle of technical leadership at Amazon, involving launching groundbreaking systems and driving significant business impact.
**Responsibilities:**
- Leading the development and deployment of massive, unprecedented systems
- Driving entire business units with their systems and solutions
- Influencing the work of hundreds of engineers
- Defining the technical direction for large parts of the company
**Skills and Qualifications:**
- 10+ years of professional experience in complex software development
- Expertise in multiple domains and advanced technologies
- Strategic thinking and organizational influence
[**Average Salary Senior Principal SDE**](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-8-senior-principal-engineer-sde)
## [Level 10: Vice President (VP) and Distinguished Engineer](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-10-distinguished-engineer-vp-sde)
**Overview:**
Level 10 VP and Distinguished Engineer positions are reserved for industry leaders with a remarkable innovation and technical excellence track record.
**Responsibilities:**
- Providing long-term vision and strategic planning for Amazon's technology direction
- Leading high-stakes decisions and significant technological investments
- Mentoring senior engineers and fostering a culture of innovation
- Influencing the entire tech industry
**Example:**
James Gosling, the creator of Java, was hired into this level, showcasing the high calibre of talent expected.
**Skills and Qualifications:**
- Unparalleled technical knowledge and experience
- Strategic mindset and long-term vision
- Exceptional leadership and communication skills
[**Average Salary VP**](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/#level-10-distinguished-engineer-vp-sde)
## Conclusion
Amazon's structured career ladder for software engineers offers clear progression opportunities, competitive compensation, and comprehensive benefits. From entry-level to senior leadership roles, understanding the responsibilities, skills required, and compensation at each level can help aspiring software engineers navigate their careers and achieve professional success at one of the world's leading tech companies. Whether starting as an SDE I or aiming for a prestigious role like a Distinguished Engineer, Amazon provides a rewarding and challenging environment for growth and innovation.
## Join Me
Read more about [Engineering Culture in MAANG (Big Tech)](https://engineeringbolt.com/tech/amazon-software-engineer-levels-roles-expectations-and-salary/), [⚡Newsletter](https://engineeringbolt.substack.com/subscribe), [Twitter](https://twitter.com/alexrashkov) and [LinkedIn](https://www.linkedin.com/in/alexrashkov) for more Career, Leadership and Growth advice.
[](https://engineeringbolt.substack.com/subscribe)
## FAQs
### What skills and qualifications are required for an SDE II position at Amazon?
An SDE II at Amazon requires 4+ years of industry experience, proficiency in full-stack development, strong communication skills, and expertise in programming languages such as Java, C/C++, Python, JavaScript, and technologies like Linux, Spring, machine learning, big data, and JQuery.
### How does Amazon support career growth for software engineers?
Amazon provides a clear career path with well-defined levels, competitive compensation, comprehensive benefits, and continuous learning and skill development opportunities. Engineers are encouraged to take on increasing responsibilities and leadership roles as they advance.
### What are the responsibilities of a Principal Software Development Engineer (Principal SDE) at Amazon?
A Principal SDE at Amazon leads large teams of software engineers, makes important technical and architectural decisions, drives business growth through innovative solutions, and adheres to Amazon's leadership principles. They typically have 10+ years of experience.
### What benefits do Amazon software engineers receive?
Amazon software engineers receive comprehensive benefits, including healthcare coverage, insurance options, parental leave, stock units, employee discounts, and transportation allowances. These benefits are designed to support employees' personal and professional well-being.
### How does Amazon's interview process for software engineers typically work?
Amazon's interview process includes a phone screen, multiple technical interviews, and onsite interviews. Candidates are assessed on their knowledge of data structures, system architecture, coding abilities, problem-solving skills, and adherence to Amazon's leadership principles. An online assessment may also be part of the process for entry-level positions.
### What distinguishes a Distinguished Engineer (Level 10) at Amazon?
Distinguished Engineers at Amazon hold significant influence across the organization. They are often involved in strategic planning and implementing cutting-edge technologies. They have exceptional experience and contributions, leading massive technical teams and driving innovation. | alexr |
1,915,522 | Creating a Scalable Serverless Chat Application on AWS | Today I had used a AWS serverless services like AWS Lambda and API Gateway to build a chat... | 0 | 2024-07-08T09:59:53 | https://dev.to/harshana_vivekanandhan_88/creating-a-scalable-serverless-chat-application-on-aws-1h7d | aws, lambda, cloudcomputing, awschallenge | [](url)Today I had used a AWS serverless services like AWS Lambda and API Gateway to build a chat application in the AWS cloud that can effortlessly scale to meet high demand.
## Prerequisites
-An AWS account with an IAM user that has administrative permissions.
- A basic understanding of a high-level programming language such as Python is recommended but not required.
- Basic understanding of databases and APIs.
- Grit and persistence.
## My Architecture Diagram
## Create A Lambda Function
Sign in to the AWS Management Console: Go to the AWS Management Console.
Open the Lambda console: From the AWS Management Console, open the AWS Lambda console by searching for "Lambda" in the services search bar.
Create three function:
Function:1
Click on the "Create function" button.
Choose "Author from scratch".
Configure the following settings:
Function name: Send Message
Runtime: Python 3.x (choose the latest available version)
Role: Choose "Create a new role with basic Lambda permissions"
Click "Create function" to create your Lambda function.
Function:2
Click on the "Create function" button.
Choose "Author from scratch".
Configure the following settings:
Function name: Connect
Runtime: Python 3.x (choose the latest available version)
Role: Choose "Create a new role with basic Lambda permissions"
Click "Create function" to create your Lambda function.
Function:3
Click on the "Create function" button.
Choose "Author from scratch".
Configure the following settings:
Function name: Disconnect
Runtime: Python 3.x (choose the latest available version)
Role: Choose "Create a new role with basic Lambda permissions"
Click "Create function" to create your Lambda function.
## Create an API
creating an API using API Gateway which is a managed service that makes it fun and easy for developers to create, publish, maintain, monitor, and secure APIs to back-end systems running on EC2, AWS Lambda or any publicly addressable web service
In the API Gateway console, click on the Build button under WebSocket APIs as shown below
You can create a route selection expression like $request.body.action to route messages based on their "action" attribute as we have done in our case. Then, you'd define route actions for different "action" values, such as:
Route Key: sendMessage
Integration: Lambda function to handle the messages
This way, incoming messages will be routed to the appropriate backend Lambda functions based on their “action” attribute. Now let’s go to add routes.
## Add Code to the Lambda Function
Edit the function code:
Scroll down to the "Function code" section.
In the inline code editor, you will see a file named lambda_function.py. This file contains the handler code for your Lambda function.
Write your code: Replace the default code with the following code:
for Send Message
python
Copy code
```
import json
import urllib3
import boto3
client = boto3.client('apigatewaymanagementapi', endpoint_url="xxxxxxxxxx.com/production")
def lambda_handler(event, context):
print(event)
#Extract connectionId from incoming event
connectionId = event["requestContext"]["connectionId"]
#Do something interesting...
responseMessage = "I am fine"
#Form response and post back to connectionId
response = client.post_to_connection(ConnectionId=connectionId, Data=json.dumps(responseMessage).encode('utf-8'))
return { "statusCode": 200 }
```
for connect and disconnect
```
import json
def lambda_handler(event, context):
print(event)
print("****")
print(context)
return { "statusCode": 200 }
```
## Testing our Send Message Route
To make sure our Lambda function is working as integration for our API and a client can send messages, we are going to test our send message route. So go back to [](url)[]{https://piehost.com/websocket-tester} with the WebSocket connection still open and try sending a message in the format:
```
{
"action": "sendMessage",
"message": "Hello, how are you?"
}
```
| harshana_vivekanandhan_88 |
1,915,572 | Host Multiple Node Apps with nginx, pm2 with SSL certificate | Hey Developers, If you're planning to host a Node.js application, or multiple Node.js applications,... | 0 | 2024-07-08T10:29:17 | https://dev.to/hussain_mohammed/host-multiple-node-apps-with-nginx-pm2-with-ssl-certificate-5dji | node, pm2, nginx, linux | ---
Hey Developers,
If you're planning to host a Node.js application, or multiple Node.js applications, on a Linux server, consider this guide.
Before diving in, it's worth noting that there are various ways to set up a Node.js app with Nginx, and the abundance of documentation and YouTube videos can sometimes make the process confusing.
In my case, I launched an AWS EC2 instance with a Linux operating system. Let's assume the public IPv4 address of the EC2 instance, after attaching an Elastic IP address, is 11.111.111.111.
## Step -1
Connect to your instance using SSH
Install the Nodejs, npm and PM2 using the below commands in the terminal
```
sudo apt update
sudo apt install nodejs npm
sudo npm install -g pm2
```
> _Max : What is PM2 for? _
> _PM2 is a renowned open-source process manager tailored for Node. js applications. It acts as a guardian, streamlining deployment, overseeing logs, monitoring resources, and ensuring minimal downtime for every application it manages.
> https://pm2.keymetrics.io/_
First, install the new Node.js applications or clone your existing Node.js repositories from your Git. Ensure both applications are running as per your requirements and are listening on different ports,
for example, ports "8000" and "8001".
## Step -2
Next, start the Node.js applications with PM2. Navigate to the respective folders of each application and use PM2 to run them in the background, ensuring they will restart automatically if the server restarts.
```
cd /path/to/your/first/app
pm2 start app.js --name "app1"
cd /path/to/your/second/app
pm2 start app.js --name "app2"
pm2 save # saves the running processes
# if not saved, pm2 will forget the running apps on next boot
```
If you want pm2 to start on system boot
```
pm2 startup # starts pm2 on computer boot
```
## Step -3
Install Nginx and configure the Nginx file.
Command for installation
```
sudo apt install nginx
```
Open the configuration file using the nano editor or any other editor that you are comfortable with.
> _Max : Could you provide more information about the Nano editor? Due to client-imposed restrictions, I am unable to use any other text editors. Your insights would be greatly appreciated_.
Nano is a nightmare for some Windows developers. However, GNU Nano is a text editor for Unix-like computing systems or operating environments using a command line interface. It emulates the Pico text editor, part of the Pine email client, and provides additional functionality. Unlike Pico, Nano is licensed under the GNU General Public License.
**Cheatsheet for Nano: https://www.nano-editor.org/dist/latest/cheatsheet.html**
> _Max : Can we use VSCode for this? _
If you're using Visual Studio Code (VS Code) for development, keep in mind that it doesn't have write permissions by default for folders outside the home directory on a Linux OS. You may need to install the appropriate VS Code extensions to manage these permissions effectively.
> **Extension name**: "Save as Root in Remote - SSH"
> **Externsion URL**: https://marketplace.visualstudio.com/items?itemName=yy0931.save-as-root
Devs who are using nano use the below command to open the file
```
sudo nano /etc/nginx/sites-available/default
```
Replace the content with the following configuration, adjusting the domain names and ports accordingly:
- NODEJS APP 1 -
```
server {
listen 80;
server_name subdomain1.yourdomain.com;
location / {
proxy_pass http://localhost:8000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
```
- NODEJS APP 2 -
```
server {
listen 80;
server_name subdomain2.yourdomain.com;
location / {
proxy_pass http://localhost:8001;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
```
If you have only one node js application then, you can ignore "NODEJS APP2" in the above snippet and save it.
Check NGINX config:
```
sudo nginx -t
```
Restart the nginx:
```
sudo service nginx restart
```
Add your subdomain names (subdomain1.yourdomain.com & subdomain2.yourdomain.com) in Godaddy or Cloudflare etc as A record to your EC2 instance IP.
## Step -4
Obtain SSL Certificates with Certbot:
```
sudo apt install certbot python3-certbot-nginx
```
Run Certbot to obtain and install Free SSL certificates for your subdomains:
```
sudo certbot --nginx -d subdomain1.yourdomain.com -d subdomain2.yourdomain.com
```
>_ Max: If my case has only one domain, I will run the above command till sudo certbot - nginx -d subdomain1.yourdomain.com _
> _Yes, Perfecto! also, you don't have 2nd Server block in the below snippet._
Certbot should automatically update your Nginx configuration to include SSL settings. Ensure the new configuration looks like this:
```
server {
listen 80;
server_name subdomain1.yourdomain.com;
location / {
proxy_pass http://localhost:8000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/subdomain1.yourdomain.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/subdomain1.yourdomain.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
server {
listen 80;
server_name subdomain2.yourdomain.com;
location / {
proxy_pass http://localhost:8001;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/subdomain2.yourdomain.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/subdomain2.yourdomain.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
```
Restart Nginx to apply the changes:
```
sudo systemctl restart nginx
```
Now, your two Node.js applications should be accessible via https://subdomain1.yourdomain.com and https://subdomain2.yourdomain.com with SSL encryption.
Thank you !!! | hussain_mohammed |
1,915,626 | Blockchain In Finance | Introduction: Blockchain technology has altered the financial services landscape and the... | 0 | 2024-07-08T11:12:27 | https://dev.to/digit001/blockchain-in-finance-2j2d | blockchain, fintech, blockchaintecnology, financialservices | ## Introduction:
[Blockchain](https://edwiseconsulting.com.au/blockchain-in-financial-services/) technology has altered the financial services landscape and the way we think about digital transactions and data security. According to Statista, the global blockchain market size is expected to reach $39.7 billion by 2025, up from just $3 billion in 2020. Spherical Insights, another market research organisation, predicts that global blockchain technology market will grow at a CAGR of 54.76% between 2023 to 2033 and is likely to reach US $1340 billion by 2033. This exceptional double-digit growth emphasises the increasing importance and potential of blockchain in various sectors.
## What is Blockchain?
In simple words, Blockchain is a decentralised digital ledger that records transactions across multiple computers in a way that ensures security, transparency, and immutability. Each transaction, or block, is linked to the previous one, forming a chain of records that cannot be altered retroactively without altering all subsequent blocks. What is unique about Blockchain is it offers a single source of truth — credit to its inherent characteristics.
## Application of Blockchain in Financial Services
Here we have a list of a few use cases of [blockchain in financial services](https://edwiseconsulting.com.au/blockchain-in-financial-services/).
- Cross-border remittance and payments
- Cryptocurrency
- Smart Contracts
- Claims Processing in [Insurance](https://edwiseconsulting.com.au/top-10-trends-shaping-the-australian-insurance-industry-in-2024/)
- Fraud Detection
- Insurance Policy Management
- Fund Management in [Superannuation](https://edwiseconsulting.com.au/sps-114-and-cps-230/)
- Trial balance audit management (general ledger)
## History of the Blockchain Technology
The concept of blockchain was introduced in 2008 by an anonymous person or group of people using the pseudonym Satoshi Nakamoto. It was initially devised as the underlying technology for Bitcoin (BTC), the first cryptocurrency, which went live in 2009.
## Significance of Blockchain
Blockchain’s significance lies in its ability to provide a secure, decentralised way to record transactions. It eliminates the need for intermediaries, reduces the risk of fraud, and enhances transparency. These features make blockchain a transformative technology for various industries, from finance to supply chain management and so on.
## Types of Blockchain:
Following table present a summarised view of all types of blockchain along with their key capabilities and areas of potential challenges.
Type of blockchain
## Conclusion:
Blockchain technology offers significant benefits across various industries, from financial services to real estate. Its ability to provide secure, transparent, and efficient transactions makes it a transformative technology with immense potential.
If you found this guide helpful, please share it with your network. For more insights and updates on blockchain technology, please follow my page to receive our regular insights. I work as an intern at [Edwise Consulting](https://edwiseconsulting.com.au), a management consulting firm, based in Australia. You can also follow our LinkedIn page if you like similar insights and industry reports. | digit001 |
1,915,723 | How to Master the Mulesoft Certification Curriculum | • MuleSoft Certified Integration Architect: Designed for experienced professionals responsible... | 0 | 2024-07-08T12:17:44 | https://dev.to/tern1992/how-to-master-the-mulesoft-certification-curriculum-5ali | webdev, javascript, beginners, programming |
• MuleSoft Certified Integration Architect: Designed for experienced professionals responsible <a href="https://dumpsarena.com/mulesoft-certification/mulesoft-certification/">Mulesoft Certification</a> for designing, implementing, and governing integration solutions.
• MuleSoft Certified Platform Architect: Caters to architects who define and oversee the overall integration strategy for an organization.
The Path to Certification Success
To maximize your chances of acing your MuleSoft certification exam, consider these steps:
• Review the Certification Objectives: Familiarize yourself with the specific topics covered in the exam for your chosen certification.
• Utilize Available Resources: MuleSoft provides comprehensive study materials, including online courses, practice exams, and documentation.
• Practice Hands-on: The best <a href="https://dumpsarena.com/mulesoft-certification/mulesoft-certification/">Mulesoft Certification</a> way to solidify your understanding is by building real-world integrations using the Anypoint Platform.
Click Here For More Info>>>>>>> https://dumpsarena.com/mulesoft-certification/mulesoft-certification/ | tern1992 |
1,915,751 | Documentation Release Notes - June 2024 | Check out all the documentation highlights from June 2024. | 0 | 2024-07-08T12:36:45 | https://dev.to/pubnub/documentation-release-notes-june-2024-5ap | pubnub, documentation, releases, releasenotes | This article was originally published at [https://www.pubnub.com/docs/release-notes/2024/june](https://www.pubnub.com/docs/release-notes/2024/june?)
Hey there! We’ve got some fresh updates for you this month.
- We introduced a new referential integrity flag to help keep your data consistent.
- You can now set channel group limits directly from the Admin Portal.
- Try importing data from Insights to BizOps to test its features.
- Plus, you'll notice a revamped look and feel for Presence Management.
Other than that, we made a bunch of small but significant improvements in the docs that will hopefully answer some of your questions or dispel any doubts you had when working with PubNub.
Happy exploring, and thanks for being a part of our community!
General 🛠️
-----------
### Custom fields in FCM payloads
**Type**: Improvement
We fixed the docs for the [Android Mobile Push Notifications](https://pubnub.com/docs/general/push/android#step-5-construct-the-push-payload) by adding the missing custom PubNub parameters that you can add to your FCM Mobile Push Notification payload: `pn_debug`, `pn_exceptions`, and `pn_dry_run`.
They'll let you test or debug notifications and exclude selected devices from receiving notifications.
Here’s a sample FCM payload with our custom fields:
```js
{
"pn_fcm": {
"notification": {
"title": "My Title",
"body": "Message sent at"
},
"pn_collapse_id": "collapse-id",
"pn_exceptions": [
"optional-excluded-device-token1"
]
},
"pn_debug": true,
"pn_dry_run": false
}
```
### Channel group limits
**Type**: New feature
The Stream Controller in the Admin Portal has a new, configurable [Channel group limit](https://pubnub.com/docs/general/metadata/basics#configuration) option for customers on [paid pricing plans](https://www.pubnub.com/pricing/?), which lets you set the limits for the maximum number of channels that channel groups in a keyset can have. You can either lower the default limit of 1,000 channels or increase it up to 2,000 channels.
### User Metadata Events in App Context
**Type**: Improvement
We improved the docs to clarify that with the enabled **User Metadata Events** option, any modification to a user entity (`set` and `delete`) results in sending event notifications to any membership associations, so both that user and any channel they are a member of. Refer to the [docs](https://pubnub.com/docs/general/metadata/basics#app-context-events) for details.
### App Context configuration dependency
**Type**: Improvement
We updated the docs on [App Context configuration options](https://pubnub.com/docs/general/metadata/basics#configuration) to include information on a critical dependency.
Although the **Disallow Get All Channel Metadata** and **Disallow Get All User Metadata** options seem pretty self-explanatory, the caveat is that these options work only with an enabled Access Manager.
In other words, without Access Manager, these active options don't actually disable getting metadata about users or channels on a keyset. At the same time, when you enable Access Manager, thus by default restricting access to all objects on a keyset, you can easily bypass Access Manager GET restrictions for users and channels by unchecking both of these configuration options without creating a fine-grained permissions schema.
Admin Portal UI will soon reflect that dependency as well.
### New referential integrity flag in App Context
**Type**: New feature
We added a new [**Enforce referential integrity for memberships**](https://pubnub.com/docs/general/metadata/basics#configuration) option, which is turned on by default when you enable App Context on your app's keyset in the Admin Portal.
This flag ensures that you can set a new membership only when both the user ID and channel ID for which you created the membership exist. At the same time, deleting a parent user or channel metadata entity automatically deletes any child membership associations for that deleted entity. This way, you ensure there are no malfunctioning or orphan membership objects on your keyset.
SDKs 📦
-------
### Python docs improvements
**Type**: Improvement
Following the feedback we received, we extended information on methods usage and execution. As a result, each Returns section in [Python SDK docs](https://pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe) now describes the data fields returned by each method. It also explains how sync (`.sync()`) and async (`.pn_async(callback)`) request execution influences the returned data for each method.
### React SDK was deprecated
**Type**: Deprecation notice
Since we haven't been actively developing the React SDK for a while, we decided to finally officially deprecate its [docs](https://pubnub.com/docs/sdks/react) and move them to the [Call For Contributions](https://pubnub.com/docs/sdks#call-for-contributions) section in our docs.
If you find a bug in the React SDK or want to extend its functionality, feel free to create a pull request in the [repo](https://github.com/pubnub/react) and wait for our feedback!
Functions
---------
### Exporting Functions logs through Events & Actions
**Type**: New feature
Each PubNub Function saves logs in the internal `blocks-output-*` channel, like `blocks-output-NSPiAuYKsWSxJl4yBn30`, that can store up to 250 lines of logs before new ones overwrite them. If you don't want to lose track of old logs, you can now use Events & Actions to [export these logs](https://pubnub.com/docs/general/portal/functions#export-logs-through-events--actions) to an external service.
Insights 📊
-----------
### User duration & device metrics in REST API docs
**Type**: Improvement
[Last month](https://pubnub.com/docs/release-notes/2024/may#device-metrics-dashboard), we introduced the device metrics to the `User Behavior` dashboard in the PubNub Insights on the Admin Portal. This month, we updated the [REST API docs](https://pubnub.com/docs/sdks/rest-api/introduction-16) to include both the user duration and device metrics, so you can call the PubNub Insights API directly to get the metrics you're interested in.
BizOps Workspace 🏢
-------------------
### Top 20 users/channels
**Type**: New feature
If you don't use App Context to store and manage users and channels, you can still test the related BizOps Workspace features by imporing test data.
If you have access to PubNub Insights, you can access it by going to the **User Management** and **Channel Management** modules in BizOps Workspace in the Admin Portal and clicking the **Import from Insights** button.
As a result, you'll import from your app's keyset a maximum of 20 users who published the highest number of messages within the last day (if no messages were sent yesterday, users will be imported based on data from a day before).
Similarly to users, you can import from your app's keyset up to 20 channels with the highest number of messages published within the last day.
Use this test data to explore what BizOps Workspace has to offer.
### Revamped Presence Management UX
**Type**: Improvement
We recently redesigned the whole [Presence Management](https://pubnub.com/docs/bizops-workspace/presence-management) module in BizOps Workspace to simplify the rule creation wizard, change badge colors to more inclusive ones, and add a "catch all" pattern config that reflects the default "enable Presence on all channels" setup of the Presence configuration on the keyset.
We hope you like its new look and feel! | pubnubdevrel |
1,915,783 | Ireland vs Canada: How to Decide Your Choice? | Ireland and Canada provide attractive study-abroad opportunities for international students. The... | 0 | 2024-07-08T13:10:54 | https://dev.to/adwaidh_s_/ireland-vs-canada-how-to-decide-your-choice-1lmh | canada, ireland, studyabroad, consultant | Ireland and Canada provide attractive study-abroad opportunities for international students. The Irish Times and IRCC data reflects high international applications in both countries.
Are you wondering on choosing your study abroad destinations? Here are a few things to consider:
**Top Universities:** Canada is home to 10 universities with global rankings under 200, while Ireland houses 6 universities with rankings under the top 500. Both countries boast an excellent academic environment.
**Education Cost:** The average cost of study in Canada is around 15,000 - 36,000 USD for undergraduate, graduate, and doctoral courses, whereas it is 10,000 - 35,000 USD in Ireland. The tuition cost varies depending on your course of study and institution.
**Living Costs:** The cost of living in Canada is higher than in Ireland. On average, the rent costs in Canada are 900 - 2000 USD per month, whereas it is 500 - 1200 in Ireland. Similarly, there is a disparity in the cost of travel, groceries, entertainment, etc., making Canada more expensive than Ireland.
**Climate Conditions:** Canada witnesses the coldest winters and warm summers, while Ireland has island weather. Ireland receives moderate rainfall throughout the year.
Conclusion
Ireland and Canada make top study abroad destinations for international students aspiring for quality education and a global experience. Analyze the countries in all parameters before making your study abroad decision. To help you, here is a [detailed guide](https://www.nomadcredit.com/blog/ireland-vs-canada), offering insights on the academic and living aspects in Ireland and Canada. | adwaidh_s_ |
1,916,752 | What are the free promotion channels for Indie hacker? | After the independent website is built, the biggest problem is promotion. Generally, Google, Facebook... | 0 | 2024-07-09T04:28:06 | https://dev.to/fridaymeng/what-are-the-free-promotion-channels-for-indie-hacker-2pa9 | After the independent website is built, the biggest problem is promotion. Generally, Google, Facebook and X are used, but they are relatively expensive. The starting promotion fee of producthunt is as high as $5,000. Here we mainly introduce several free mainstream promotion platforms.
## Medium
Medium can be said to be the highest-level content sharing platform at present, with many professionals publishing articles on it.
## LinkedIn
LinkedIn is generally regarded as a job search platform, but it is also a very good product promotion platform.
## Indie Hackers
Indie Hackers is a platform dedicated to startups and independent developers releasing new products. The main difference between it and producthunt is probably its pure dark style.
## Hacker Noon
This is a platform that mainly discusses blockchain and AI-related products. If the products you release are related to AI, you can also try to release new products on this platform.
## Product Hunt
Product Hunt is actually the most recognized publishing platform. It is the preferred publishing platform for many new products. However, as its popularity grows, the platform starts charging for product promotion. Now, there is basically no traffic without payment.
## Dev.To
dev.to is a technology community platform.
| fridaymeng | |
1,916,785 | Using React Portals to Render Elements Anywhere in the DOM | Introduction React Portals provide a powerful way to render components outside the main DOM... | 0 | 2024-07-09T05:42:41 | https://dev.to/parth24072001/using-react-portals-to-render-elements-anywhere-in-the-dom-1h9h | **Introduction**
React Portals provide a powerful way to render components outside the main DOM hierarchy, allowing for greater flexibility in placing elements. This is particularly useful for creating modals, tooltips, and other components that need to be rendered at a different location in the DOM. In this guide, we will demonstrate how to use React Portals to open and render elements anywhere in your application.
**Prerequisites**
Before we begin, ensure you have a basic understanding of React and functional components. Familiarity with hooks (useState, useEffect) will be beneficial.
**Step 1: Setting Up the Project**
First, create a new React project or navigate to your existing project:
```
npx create-react-app react-portal-tutorial
cd react-portal-tutorial
npm start
```
**Step 2: Creating the Portal Component**
Create a new file PortalComponent.js and add the following code to define a reusable portal component:
```
import React from 'react';
import ReactDOM from 'react-dom';
const PortalComponent = ({ children, containerId }) => {
const container = document.getElementById(containerId);
return container ? ReactDOM.createPortal(children, container) : null;
};
export default PortalComponent;
```
**Step 3: Adding the Target Element in the DOM**
Ensure you have an element in your index.html or another component where the portal can render its content. For instance, add this div in your public/index.html:
```
<body>
<div id="root"></div>
<div id="header-children"></div> <!-- Target Element for Portal -->
</body>
```
**Step 4: Implementing the Portal in Your Component**
Create a component, App.js, and use the PortalComponent to render content inside the target element (header-children):
```
import React, { useState } from 'react';
import PortalComponent from './PortalComponent';
const App = () => {
const [isSearch, setIsSearch] = useState(false);
const [isDelete, setIsDelete] = useState(false);
const handleCancel = () => {
setIsSearch(false);
setIsDelete(false);
};
const onDeleteClick = () => setIsDelete(true);
const onSearchClick = () => setIsSearch(true);
return (
<div>
<h1>React Portal Example</h1>
<button onClick={onSearchClick}>Search</button>
<button onClick={onDeleteClick}>Delete</button>
<div id="header-children"></div>
<PortalComponent containerId="header-children">
<div className="gap-5 flex">
{isSearch || isDelete ? (
<button
className="text-xl leading-8 font-semibold text-caribbeangreen"
onClick={handleCancel}
>
Cancel
</button>
) : (
<HistoryActions
history={history}
onDeleteClick={onDeleteClick}
onSearchClick={onSearchClick}
/>
)}
</div>
</PortalComponent>
</div>
);
};
const HistoryActions = ({ history, onDeleteClick, onSearchClick }) => (
<div>
<button onClick={onSearchClick}>Search History</button>
<button onClick={onDeleteClick}>Delete History</button>
</div>
);
export default App;
```
**Step 5: Styling the Portal Content**
Add necessary styles in your index.css or another CSS file:
```
.gap-5 {
gap: 1.25rem;
}
.flex {
display: flex;
}
.text-caribbeangreen {
color: #00FF7F;
}
.text-xl {
font-size: 1.25rem;
}
.leading-8 {
line-height: 2rem;
}
.font-semibold {
font-weight: 600;
}
```
**Conclusion**
In this tutorial, we've covered how to use React Portals to render components outside the main DOM hierarchy. By following these steps, you can create flexible and powerful UI elements that can be rendered anywhere in your application. This technique is especially useful for components like modals, tooltips, and context menus.
**first file**
```
const headerChildrenRenderer = document.getElementById("header-children");
{createPortal(
<div className="gap-5 flex">
{isSearch || isDelete ? (
<button
className="text-xl leading-8 font-semibold text-caribbeangreen"
onClick={handleCancel}
>
Cancel
</button>
) : (
<HistroyActions
history={history}
onDeleteClick={onDeleteClick}
onSearchClick={onSearchClick}
/>
)}
</div>,
headerChildrenRenderer as HTMLElement
)}
```
**second file**
```
// ref for when we want to open above element
<div id='header-children'></div>
```
| parth24072001 | |
1,916,786 | Environmental Benefits of Brine Concentration Mineral Extraction | The report "Brine Concentration Minerals Market by Type (Sodium derivatives, Magnesium derivatives,... | 0 | 2024-07-09T05:38:27 | https://dev.to/aryanbo91040102/environmental-benefits-of-brine-concentration-mineral-extraction-4koo | news | The report "Brine Concentration Minerals Market by Type (Sodium derivatives, Magnesium derivatives, Calcium derivatives, Potassium dereivatives), Technology (Solar evaporation, NF-RO-MF, Osmotically assisted RO), Application, and Region - Global Forecast to 2029", is USD 1.1 billion in 2024 and is projected to reach USD 1.7 billion by 2029, at a CAGR of 8.1% from USD 1.1 billion in 2024.
The growth of brine concentration minerals is propelled by several key drivers that reflect global shifts towards sustainable practices and increasing demand in critical industries. Firstly, the surge in renewable energy projects and electric vehicle adoption fuels the demand for minerals like lithium, potassium, and magnesium, essential components in batteries and lightweight materials. The transition towards cleaner energy sources intensifies the need for energy storage solutions, where brine-derived minerals play a pivotal role. Additionally, the expanding applications of these minerals in sectors beyond energy, such as agriculture, pharmaceuticals, and construction, contribute to heightened demand. The imperative for sustainable practices in resource extraction amplifies the attractiveness of brine concentration methods, particularly those that minimize environmental impact. Geopolitically, strategic resource partnerships and investments in lithium-rich regions, such as the lithium triangle in South America, secure a stable supply chain. Moreover, technological advancements, including innovative extraction processes, enhance the efficiency and cost-effectiveness of brine concentration mineral production.
Browse in-depth TOC on "Brine Concentration Minerals Market"
222 – Tables
48 – Figures
251 – Pages
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)
"Metallurgical by application is projected to be the largest, in terms of value, during the forecast period."
The potential dominance of the metallurgical segment within the brine concentration minerals market arises from the utilization of specific minerals derived from brine in the production of refractories. Refractories, renowned for their heat-resistant properties crucial in industrial processes like metal smelting and glass manufacturing, commonly integrate minerals such as magnesium oxide, calcium oxide, and alumina extracted from brine. These minerals significantly enhance the refractory materials' capacity to endure high temperatures and severe conditions inherent in metallurgical applications. The robust demand for refractories in the metallurgical sector, encompassing pivotal processes like steel production and non-ferrous metal processing, emerges as a primary catalyst driving the prominence of the metallurgical segment in the brine concentration minerals market. The anticipated expansion of the global steel industry and intensified metallurgical activities is poised to amplify the need for brine-derived minerals incorporated into refractories, solidifying the metallurgical segment's standing as a substantial and influential market segment within the broader domain of brine concentration minerals.
"Magnesium derivative by type is projected to be the largest, in terms of value, during the forecast period."
Derived from brine, magnesium derivatives exhibit the potential to command the market due to their versatile applications across diverse industries. Particularly in the automotive sector, magnesium is preferred for its integration into lightweight components, contributing significantly to heightened fuel efficiency and diminished emissions. This usage aligns with industry trends emphasizing sustainable and eco-friendly transportation solutions, thereby generating substantial demand for magnesium derivatives. In agriculture, magnesium derivatives play a pivotal role as valuable fertilizers, addressing soil magnesium deficiencies and fostering optimal plant growth. Additionally, magnesium compounds hold a crucial place in the pharmaceutical industry, finding application in the formulation of medications and dietary supplements, emphasizing their role in promoting health and well-being. Moreover, in the construction realm, magnesium oxide, a derivative, proves valuable as a fire-resistant material, enhancing safety measures and meeting industry standards for robust, fire-resistant construction materials.
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"Solar evaporation by technology segment is projected to be the largest, in terms of value, during the forecast period."
Solar evaporation technology stands out for brine mineral extraction due to its cost-effectiveness, relying on minimal infrastructure and harnessing natural solar energy, which reduces operational expenses. Its simple process allows for swift implementation, leading to shorter setup times and lower initial capital investments. Recognized for its environmental friendliness, solar evaporation avoids the use of chemical reagents and minimizes energy consumption, aligning with sustainability goals. Particularly advantageous in regions with high solar radiation, such as the lithium triangle (Chile, Argentina, Bolivia), this method targets a range of minerals, including lithium, potassium, magnesium, sodium, and calcium, depending on the specific brine source characteristics. Overall, solar evaporation emerges as an efficient, eco-friendly, and regionally adaptable technology for mineral extraction from brine, addressing the diverse needs of industries and aligning with contemporary sustainability objectives.
"Asia Pacific is expected to be the fastest growing market for brine concentration minerals during the forecast period, in terms of value."
Asia Pacific emerges as the brine concentration minerals market's fastest-growing region, driven by a convergence of factors that highlight its economic vitality and strategic significance. The region is a hub for vigorous industrial activities, spearheaded by China. The nation's robust manufacturing, rapid urbanization, and expansive infrastructure projects significantly propel the demand for brine-derived minerals across varied industries. China, a global leader in electric vehicle consumption and renewable energy initiatives, fuels the market's expansion, aligning with international sustainability trends. Furthermore, Asia Pacific possesses substantial lithium resources, particularly in Australia and China, establishing a reliable supply chain for the burgeoning electric vehicle and energy storage sectors. Active involvement in strategic partnerships and investments in the lithium-rich lithium triangle, encompassing Chile, Argentina, and Bolivia, enhances the region's standing as a vital source for lithium. Agricultural pursuits in countries like India and China further bolster the demand for brine-derived minerals, serving as fertilizers to address soil nutrient deficiencies. This focus on enhancing agricultural productivity mirrors Asia Pacific's commitment to achieving food security. In geopolitical terms, the region's strategic collaborations and investments in lithium-rich regions secure resource access, guaranteeing a steady supply of brine concentration minerals. This strategic foresight positions Asia Pacific as a pivotal player in the global brine concentration minerals market, solidifying its role in driving industry growth.
Key Players
The key players in this market are Magrathea (US), Olokun Minerals (US), Albemarle Corporation (US), Ganfeng Lithium Group Co., Ltd. (China), Arcadium Lithium (US), ICL Industrial Products (Israel), SQM S.A. (Chile), Solvay (Belgium), SEALEAU (Netherlands), and Konoshima Chemical Co., Ltd. (Japan) etc.
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Founded in 2022, Magrathea, headquartered in the San Francisco Bay Area, US is a pioneering force in the magnesium industry, driven by a mission to revolutionize structural metal production's environmental impact. Specializing in magnesium extraction from seawater, their proprietary electrolysis technology not only yields high-purity magnesium but also captures atmospheric carbon dioxide, ensuring a carbon-negative footprint. While initially focusing on lightweight magnesium applications for automotive and aerospace industries, Magrathea's global potential lies in its unique approach, circumventing traditional land-based mining and enabling operations anywhere with access to abundant seawater resources. Beyond magnesium production, the company is committed to a circular economy, exploring efficient recycling methods, and offering consulting services in decarbonization and hydrometallurgy for a broader sustainable impact on metal industries. Magrathea's product offerings span high-purity magnesium metal for fuel efficiency and emission reduction, customized magnesium alloys with enhanced properties, and technical expertise through consulting services. Their technological prowess encompasses advanced electrolysis, making seawater magnesium production commercially viable and environmentally friendly, and deep hydrometallurgical know-how applicable not only to magnesium but potentially to other metals. Magrathea Metals Inc. stands as a young, ambitious force with a global vision, offering innovative solutions to transform the metal industry into a more sustainable and environmentally conscious landscape. The company is currently operating in the North America region specifically in the US.
TABLE OF CONTENTS
1 INTRODUCTION (Page No. - 32)
1.1 STUDY OBJECTIVES
1.2 MARKET DEFINITION
1.3 INCLUSIONS & EXCLUSIONS
1.4 MARKET SCOPE
FIGURE 1 BRINE CONCENTRATION MINERALS MARKET SEGMENTATION
1.4.1 REGIONS COVERED
1.4.2 YEARS CONSIDERED
1.5 CURRENCY CONSIDERED
1.6 UNITS CONSIDERED
1.7 LIMITATIONS
1.8 STAKEHOLDERS
2 RESEARCH METHODOLOGY (Page No. - 36)
2.1 RESEARCH DATA
FIGURE 2 BRINE CONCENTRATION MINERALS MARKET: RESEARCH DESIGN
2.1.1 SECONDARY DATA
2.1.2 PRIMARY DATA
2.1.2.1 Key brine concentration mineral manufacturers
2.1.2.2 Breakdown of interviews with experts
2.1.2.3 Key industry insights
2.2 BASE NUMBER CALCULATION
2.2.1 APPROACH 1: SUPPLY-SIDE ANALYSIS
2.2.2 APPROACH 2: DEMAND-SIDE ANALYSIS
2.3 FORECAST NUMBER CALCULATION
2.3.1 SUPPLY SIDE
2.3.2 DEMAND SIDE
2.4 MARKET SIZE ESTIMATION
FIGURE 3 MARKET SIZE ESTIMATION METHODOLOGY: REVENUE OF MARKET PLAYERS
2.4.1 BOTTOM-UP APPROACH
2.4.2 TOP-DOWN APPROACH
2.5 DATA TRIANGULATION
FIGURE 4 BRINE CONCENTRATION MINERALS MARKET: DATA TRIANGULATION
2.6 ASSUMPTIONS
2.7 RECESSION IMPACT
2.8 GROWTH FORECAST
2.9 RISK ASSESSMENT
3 EXECUTIVE SUMMARY (Page No. - 46)
FIGURE 5 METALLURGICAL APPLICATION TO DOMINATE MARKET BETWEEN 2024 AND 2029
FIGURE 6 SOLAR EVAPORATION TECHNOLOGY TO LEAD MARKET BETWEEN 2024 AND 2029
FIGURE 7 MAGNESIUM DERIVATIVES TO DOMINATE MARKET DURING FORECAST PERIOD
FIGURE 8 ASIA PACIFIC TO DOMINATE MARKET DURING FORECAST PERIOD
4 PREMIUM INSIGHTS (Page No. - 51)
4.1 ATTRACTIVE OPPORTUNITIES FOR PLAYERS IN BRINE CONCENTRATION MINERALS MARKET
FIGURE 9 GROWING DEMAND FOR LITHIUM-ION BATTERIES TO DRIVE MARKET
4.2 BRINE CONCENTRATION MINERALS MARKET, BY TYPE
FIGURE 10 MAGNESIUM DERIVATIVES TO BE FASTEST-GROWING TYPE DURING FORECAST PERIOD
4.3 BRINE CONCENTRATION MINERALS MARKET, BY APPLICATION
FIGURE 11 WATER TREATMENT TO BE FASTEST-GROWING APPLICATION DURING FORECAST PERIOD
4.4 BRINE CONCENTRATION MINERALS MARKET, BY TECHNOLOGY
FIGURE 12 NF-RO-MF TO BE FASTEST-GROWING TECHNOLOGY DURING FORECAST PERIOD
4.5 BRINE CONCENTRATION MINERALS MARKET, BY REGION
FIGURE 13 ASIA PACIFIC TO BE FASTEST-GROWING REGION DURING FORECAST PERIOD
5 MARKET OVERVIEW (Page No. - 54)
5.1 INTRODUCTION
5.2 MARKET DYNAMICS
FIGURE 14 BRINE CONCENTRATION MINERALS MARKET: DRIVERS, RESTRAINTS, OPPORTUNITIES, AND CHALLENGES
5.2.1 DRIVERS
Continued... | aryanbo91040102 |
1,916,788 | dropdown open in portal for using table in react | import React, { useState, useRef, useEffect } from "react"; import ReactDOM from "react-dom"; const... | 0 | 2024-07-09T05:42:53 | https://dev.to/parth24072001/dropdown-open-in-portal-for-using-table-in-react-2odd | react, dropdown, webdev, javascript | ```
import React, { useState, useRef, useEffect } from "react";
import ReactDOM from "react-dom";
const PortalWrapper = React.forwardRef(({ children }, ref) => {
const [openDropdownMenu, setOpenDropdownMenu] = useState(false);
const [position, setPosition] = useState({
left: 0,
top: 0,
width: "100%",
});
const dropdownRef = useRef(null);
const handleDropdDownClick = () => {
setOpenDropdownMenu(!openDropdownMenu);
if (ref && "current" in ref && ref.current) {
const { top, left, height } = ref.current.getBoundingClientRect();
setPosition({
top: top + height,
left,
width: `${ref.current.clientWidth}px`,
});
}
};
useEffect(() => {
if (openDropdownMenu && dropdownRef.current) {
dropdownRef.current.style.top = `${position.top}px`;
dropdownRef.current.style.left = `${position.left}px`;
dropdownRef.current.style.display = "none";
}
}, [openDropdownMenu, position]);
return (
<div ref={ref} className="w-full" onClick={handleDropdDownClick}>
{children(position)}
{openDropdownMenu &&
ReactDOM.createPortal(
<div ref={dropdownRef} style={{ position: "absolute" }}>
{children(position)}
</div>,
document.body
)}
</div>
);
});
export default PortalWrapper;
```
```
<PortalWrapper ref={dropdownRef}>
{() =>
(itIsOwner(user?.agent_role) ||
user?.platform_owner) && (
<Select
styles={CustomStyle}
onChange={(selectedOption) =>
handleActionChange(
selectedOption,
contactInfo,
index
)
}
options={agentData?.map((option) => ({
value: option,
label: `${option.first_name} `,
}))}
placeholder="Esther Howard"
className={clsx(
"dropdown_list !w-40 cursor-pointer userFilter mt-[0.4375rem]"
)}
classNamePrefix="dropdown_list-contacts"
menuPosition="fixed"
menuPlacement="auto"
menuShouldScrollIntoView={false}
menuPortalTarget={document.body}
/>
)
}
</PortalWrapper>
```
| parth24072001 |
1,916,789 | Swift Concurrency | What is Concurrency? In Real Life: Concurrency in real life refers to the... | 0 | 2024-07-09T05:40:23 | https://dev.to/vinaykumar0339/swift-concurrency-5001 | multithreading, threading | ## What is Concurrency?
### In Real Life:
Concurrency in real life refers to the ability to handle multiple activities simultaneously within a given timeframe. This can be seen in various scenarios where multiple tasks are being managed simultaneously.
### Examples:
* **Chef in a Kitchen:** A chef might prepare several dishes simultaneously. While one dish is baking in the oven, the chef can chop vegetables for another dish. This is the concurrent execution of tasks.
* **Office Work:** An employee might be handling emails, answering phone calls, and attending daily meetings. These tasks overlap in time, demonstrating concurrency.
* **Traffic Management:** Traffic lights at an intersection manage the flow of cars from different directions. While cars move in one direction, others wait, and pedestrians might cross the street, all managed concurrently.
### In Programming:
In programming, concurrency refers to the execution of multiple tasks or processes simultaneously, potentially overlapping in execution time. It is a way to structure a program to do multiple things at once, improving efficiency and performance.
### Examples:
* **Multithreading:** Running multiple threads within a single application. Each thread can perform a different task, such as fetching data from the network, processing user input, and updating the user interface.
* **Asynchronous Programming:** Using constructs like async/await to perform non-blocking operations. For instance, fetching data from a server while allowing the user interface to remain responsive.
* **Parallel Processing:** Executing multiple processes or computations simultaneously, often on different CPU cores. This is common in scientific computing, image processing, and machine learning tasks.
## What is Parallelism?
### In Real Life:
Parallelism in real life refers to the simultaneous execution of multiple tasks by multiple resources. It involves doing multiple things at the same time.
### Examples:
* **Construction Site:** Workers on a construction site performing different tasks simultaneously, such as one worker laying bricks while another installs windows.
* **Orchestra:** Different musicians play their instruments at the same time to create a symphony.
* **Restaurant:** Multiple chefs in a restaurant kitchen cooking different dishes at the same time, each using different equipment
### Programming:
In programming, parallelism refers to the simultaneous execution of multiple computations or processes. It typically involves dividing a task into subtasks that can be processed concurrently on multiple processors or cores.
### Examples:
* **Parallel Processing:** Running multiple computations simultaneously on different CPU cores to speed up processing time.
* **Parallel Algorithms:** Algorithms that divide a problem into subproblems that can be solved concurrently, like matrix multiplication or sorting algorithms.
* **Distributed Systems:** Multiple servers processing different parts of a task at the same time to handle large-scale computations, such as in data centres or cloud computing
## Concurrency vs Parallelism?
**Concurrency:** Two queues share one vending machine, serving one person at a time by alternating between queues.
**Parallelism:** Each queue has its vending machine, allowing both queues to be served simultaneously.
> Parallelism Will give more speed but it involves more CPU resources.
> Because Parallelism involves more resources we need to find a way that Concurrency can be achieved.
## How Can We Achieve Concurrency in iOS?
1. [Achieving multi-threading by creating threads manually](https://dev.to/vinaykumar0339/achieving-multi-threading-by-creating-threads-manually-in-swift-2b3n)
2. [GCD (Grand Central Dispatch)](https://dev.to/vinaykumar0339/introduction-to-gcd-grand-central-dispatch-16b9)
3. Operation Queues
4. Modern Concurrency By Swift. (async and await) | vinaykumar0339 |
1,916,790 | Revisiting Python: A New Chapter in My Learning Journey | The connection with Python began quite some time ago, but I still haven't managed to learn it... | 28,003 | 2024-07-09T05:42:25 | https://dev.to/niroash/revisiting-python-a-new-chapter-in-my-learning-journey-5bf7 | python, programming, niroash | The connection with **Python** began quite some time ago, but I still haven't managed to learn it completely. Then my friend _Harish_ insistently encouraged me to give it another try. So, I have started to learn it again. However, my efforts were put to a stop in the middle.
Now once again, I came across a Facebook post about a free Python class. This time, I decided to join a structured class due to my previous unsuccessful attempt at self-studying. There was a requirement to write a blog about the learning process, which made me hesitant since I already have a heavy workload. Nevertheless, I chose to take up the challenge. Let's see how this goes.
This class was organized by the _Kaniyam Foundation_, and the course was conducted by Mr. _Syed Jaufar_. Mr. _Shrinivasan_ introduced us to several forums and groups related to Linux OS and Open Source Software.
Today, I have reinstalled Python after a long break. I am excited to resume my learning journey, considering my past experiences with Ubuntu during my school days.
In today’s class, we were introduced to the print command in Python. The print function is used to display output to the screen. It’s a fundamental tool that helps us see the results of our code.
Here is a simple example:
```
print("Hello, world!")
```
When you run this code, it will display:
```
Hello, world!
```
Let's continue...
`Niroash` | niroash |
1,916,791 | Transform Your Typed Text into Realistic Handwriting with Text To Handwriting Web App! | Hi everyone, I recently made a fantastic web app that I think many of you will find incredibly... | 0 | 2024-07-09T05:45:02 | https://dev.to/mahipal_kumawat_833bcca84/transform-your-typed-text-into-realistic-handwriting-with-text-to-handwriting-web-app-1eho | texttohandwriting, texttohandwritingonline, onlineassignmentcreator, texttohandwritingassignment | Hi everyone,
I recently made a fantastic web app that I think many of you will find incredibly useful, especially if you often need to submit handwritten assignments or notes.
It's called Text to Handwriting, and it converts your typed text into realistic-looking handwriting. This tool is perfect for students, teachers, or anyone who needs to produce handwritten documents quickly and efficiently.
Here are some of the key features:
Realistic Handwriting Conversion: Type out your text, and the tool will convert it into natural-looking handwriting that resembles real penmanship.
Support for Complex Mathematical Equations: If you need to include mathematical formulas or equations, the app has robust support for rendering complex math in handwritten form.
Upload Photos and Hand Drawings: You can easily integrate photos and add your own hand-drawn illustrations to your documents, making it versatile for various subjects and purposes.
User-Friendly Interface: The interface is designed to be intuitive and straightforward, allowing you to create your handwritten documents with ease.
You can try it out here: [](https://mahipal123456.github.io/Text-To-Handwriting/)
I hope you find it as helpful as I have for completing assignments and projects. Give it a try and let me know your thoughts or any feedback you might have. I'm always looking to improve and add new features!
Happy writing!
| mahipal_kumawat_833bcca84 |
1,916,793 | Achieving multi-threading by creating threads manually in Swift | What is Threading? Threading is a fundamental concept in programming that allows for the... | 0 | 2024-07-09T05:51:22 | https://dev.to/vinaykumar0339/achieving-multi-threading-by-creating-threads-manually-in-swift-2b3n | swift, threading, multithreading | ## What is Threading?
Threading is a fundamental concept in programming that allows for the concurrent execution of code. By using multiple threads, you can perform multiple tasks simultaneously, improving the efficiency and performance of your application.
## Why Use Threading?
* **Improved Performance:** Execute multiple operations in parallel.
* **Responsiveness:** Keep your application responsive by performing long-running tasks in the background.
* **Resource Utilization:** Make better use of system resources by distributing workloads.
## Thread API in Swift
**Thread** will be available in the **Foundation** framework
```swift
import Foundation
class CustomThread {
func createThreadUsingObjSelector() {
let thread = Thread(target: self, selector: #selector(threadExecutor), object: nil)
thread.start()
}
@objc private func threadExecutor() {
print("Executing threadExecutor \(Thread.current)")
}
func createThreadUsingTrailingClosures() {
let thread = Thread {
print("Executing createThreadUsingTrailingClosures \(Thread.current)")
}
thread.start()
}
}
let customThread = CustomThread()
customThread.createThreadUsingObjSelector()
customThread.createThreadUsingTrailingClosures()
```
## Pros of using Manual Threads
1. **Fine-Grained Control:** You have complete control over thread creation, management, and execution (like start, cancel etc)
2. **Customization:** You can customize thread behaviour to suit specific needs.
## Crons of using Manual Threads
1. **Resource Intensive:** Creating and managing many threads can be resource-intensive and may degrade performance if not managed properly.
2. **Scalability:** Manual threading may not scale well with the increasing complexity of applications.
3. More Power comes with higher responsibility.
4. Improper management may cause memory leaks in the app.
5. Managing Order of Execution.
## Conclusion
Threading is a powerful tool for improving the performance and responsiveness of your applications. While manual threading provides fine-grained control, it comes with complexity and potential pitfalls. By understanding the pros and cons, and following best practices, you can effectively utilize threading in your Swift applications.
[<-- Swift Concurrency](https://dev.to/vinaykumar0339/swift-concurrency-5001) [-->Introduction to GCD](https://dev.to/vinaykumar0339/introduction-to-gcd-grand-central-dispatch-16b9) | vinaykumar0339 |
1,916,795 | 中国程序员在线求职 | 英语不好，能找到好工作吗 | 0 | 2024-07-09T05:54:08 | https://dev.to/hai_huang_2123371b2317e57/zhong-guo-cheng-xu-yuan-zai-xian-qiu-zhi-3ajh | 英语不好，能找到好工作吗 | hai_huang_2123371b2317e57 | |
1,916,796 | Installing PostgreSQL on Linux and Using SQLynx for Database Management | This article demonstrates how to install PostgreSQL on a Linux system and how to use the database... | 0 | 2024-07-09T05:54:48 | https://dev.to/senkae_ll/installing-postgresql-on-linux-and-using-sqlynx-for-database-management-1a81 | postgres, linux, database, sqlynx | This article demonstrates how to install PostgreSQL on a Linux system and how to use the database management tool SQLynx to connect to a database and perform operations such as creating databases and tables.
### 1. Installing the PostgreSQL Database
Installing PostgreSQL on Linux typically involves one of three common methods, each with its own set of advantages and disadvantages:
**Binary Pre-compiled Package Installation:**
- **Advantages:**
- Quick and simple: Directly download the binary file for your platform; no compilation required, enabling a swift installation process.
- Official support: The binary installation packages from the official provider are usually stable and thoroughly tested.
- **Disadvantages:**
- Limited flexibility: May not meet specific configuration needs since options are pre-set at compile time.
- Dependency handling: System dependencies may need to be manually resolved in some cases.
**Installation via YUM:**
- **Advantages:**
- Convenience and automation: YUM installation automatically handles dependencies, simplifying the process.
- Easy to manage: Ideal for package management on RPM-based systems (e.g., CentOS, Fedora), facilitating easy updates and maintenance.
- Highly integrated with the system: The installation process is seamlessly integrated into system services, using tools like systemctl for management.
- **Disadvantages:**
- Version limitations: May not always provide the latest version of PostgreSQL.
- Configurations are more fixed: Manual adjustments may be needed post-installation for special configurations.
**Source Code Installation:**
- **Advantages:**
- Highly customizable: Allows pre-installation customization through configuration options, meeting specific needs.
- Access to the latest features: The newest versions and improvements are available through source install.
- **Disadvantages:**
- Complexity: Requires managing dependencies and a compilation environment, suitable for those with experience.
- Time-consuming: Downloading and compiling source code may take longer than other methods.
**The following details the steps for YUM installation:**
**Adding the PostgreSQL Repository:**
- Begin by adding the official PostgreSQL repository. Open a terminal and execute the following command to import PostgreSQL 12’s repository:
```
sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
```
**Installing PostgreSQL:**
- Once the repository is added, install PostgreSQL 12 using yum:
```
sudo yum install -y postgresql12 postgresql12-server
```
- This installs PostgreSQL 12 database server and its accessories.
**Initializing the Database:**
- After installation, initialize the database storage with:
```
sudo /usr/pgsql-12/bin/postgresql-12-setup initdb
```
**Starting the PostgreSQL Service:**
- To launch the PostgreSQL service and ensure its automatic startup on system reboot, execute:
```
sudo systemctl start postgresql-12
sudo systemctl enable postgresql-12
```
**Changing the postgres User Password:**
- By default, PostgreSQL creates a system and database user named 'postgres'. To set a password, switch to the postgres user:
```
sudo passwd postgres
```
- Then, switch users and connect to PostgreSQL to change the postgres database user’s password:
```
su - postgres
psql -d postgres -c "alter user postgres with password 'YourPassword';"
```
- Replace 'YourPassword' with your chosen secure password.
**Enabling Remote Connections:**
- PostgreSQL, by default, only allows local connections. To enable remote connections, edit the `postgresql.conf` and `pg_hba.conf` configuration files, commonly located at `/var/lib/pgsql/12/data/`.
- Ensure `postgresql.conf` includes the following (uncommented and set to the correct address or use '*' for all addresses):
```
listen_addresses = '*'
```
- Then, in `pg_hba.conf`, add the following to permit remote connections:
```
host all all 0.0.0.0/0 md5
```
- Save your changes and restart the PostgreSQL service:
```
sudo systemctl restart postgresql-12
```
**Verifying the Installation:**
- Finally, verify that the PostgreSQL server is operational by creating a test database:
```
su - postgres
createdb testdb
psql -d testdb
```
- Successful connection to the 'testdb' database signifies that PostgreSQL is correctly installed and operational on your CentOS 7 system.
### 2. Installing SQLynx
**Download the Installation Package:**
- Visit the website to select and download the appropriate version, for example, `sqlynx_enterprise_linux_3.3.0.zip`.
**Unzip the File:**
- Unzip the package to the current folder with the command:
```
unzip sqlynx_enterprise_linux_3.3.0.zip
```
**Start SQLynx:**
- After unzipping, a `sqlynx` folder will be created. Enter this directory with:
```
cd sqlynx
```
- Execute the following command:
```
./maicong-sqlynx.sh
```
- To start the service, execute:
```
sh maicong-sqlynx.sh start
```
- After startup, SQLynx’s web interface can be accessed at `http://<server IP address>:18888`, where `18888` is the default port following installation.
**Change the Port Number:**
- Go into the `sqlynx` directory and update the configuration file as shown in the example. Edit the `config/maicong.yaml` file to change the port number (default is `server.port:18888`):
```
vi config/maicong.yaml
```
- Press `i` to enter insert mode, make your changes to the port number, press `esc` to exit insert mode, and type `:wq` to save and quit.
**Modify the JVM Heap Size:**
- Within the `sqlynx` directory, execute the command to edit the `maicong-sqlynx.sh` file and adjust the heap sizes according to your server’s capabilities:
```
vi maicong-sqlynx.sh
```
### 3. Using SQLynx to Connect to PostgreSQL
**Start SQLynx:**
- Open a browser and enter `http://<server IP address>:18888` to reach the SQLynx login page. The default username is 'maicong'. The initial login password is directly entered by the user and saved for future logins.
**Add a Data Source:**
- Navigate to "System Settings" > "Data Configuration" > "Add Data Source".
- In the pop-up window, select the PostgreSQL icon and click "Next".
- On the "Basic Settings" page, fill in the PostgreSQL database information (such as server IP, port number, username, and password) you installed on Linux. Click "Test Connection", and if successful, click "OK" to complete the setup.
Return to the main page and refresh it; the configured PostgreSQL database information should now be visible. The expandable navigation bar allows for right-clicking on the data source name, database name, or object name to access related functions like creating databases or objects, importing/exporting data, and generating test data.
This concludes the guide on installing PostgreSQL on a Linux system and connecting to and operating the data source using SQLynx, a graphical database tool.
| senkae_ll |
1,916,797 | Finding Hope and Healing: Choosing the Right Anxiety Treatment Center | Understanding Anxiety and Its Impact In today's fast-paced world, anxiety has emerged as a... | 0 | 2024-07-09T05:56:25 | https://dev.to/castcenters/finding-hope-and-healing-choosing-the-right-anxiety-treatment-center-505d | ## Understanding Anxiety and Its Impact
In today's fast-paced world, anxiety has emerged as a common challenge, affecting millions globally. It's more than just feeling stressed or worried; anxiety can be overwhelming, hindering one's ability to lead an everyday life. This is where an [Anxiety Treatment Center](https://castcenters.com/treatment/mental-health/anxiety/) comes into play, offering a beacon of hope to those grappling with this condition.
## The Role of an Anxiety Treatment Center
An Anxiety Treatment Center is more than just a facility; it's a sanctuary for healing and recovery. These centers are equipped with specialized professionals and tailored programs designed to address anxiety's multifaceted nature. From one-on-one therapy sessions to group support and holistic approaches, treatment centers provide a comprehensive strategy to combat anxiety.
## Personalized Treatment Plans
Every individual's experience with anxiety is unique. Recognizing this, reputable centers develop personalized treatment plans. By assessing each patient's specific needs, centers can tailor therapy, medication, and activities that offer the most effective relief.
## Professional Support
Anxiety treatment requires professional guidance. Licensed therapists, psychologists, and psychiatrists work collaboratively at these centers to offer evidence-based treatments such as Cognitive Behavioral Therapy (CBT), which has proven effective in managing anxiety disorders.
## Choosing the Right Center for You
Selecting the appropriate Anxiety Treatment Center can feel daunting. Here are key factors to consider:
**Specialization and Services**
Ensure the center specializes in anxiety disorders and offers a range of services tailored to different anxiety types, including generalized anxiety disorder (GAD), panic disorder, and social anxiety disorder.
**Credentials and Reviews**
Research the credentials of the staff and read reviews from previous patients. This can provide insight into the effectiveness of the center's treatments and the quality of care provided.
**Aftercare Support**
Recovery from anxiety is an ongoing process. The best centers offer aftercare support, helping patients navigate life after treatment and maintain their progress.
## Conclusion: A Path Forward
An [Anxiety Treatment Center](https://castcenters.com/treatment/mental-health/anxiety/) can provide the critical support needed to navigate the complexities of anxiety. By offering personalized care, professional expertise, and a dedicated path to recovery, these centers play a pivotal role in helping individuals reclaim their lives from anxiety. Remember, taking the step to seek help is a sign of strength, and with the right support, healing is within reach. | castcenters | |
1,916,798 | REST vs GraphQL: What Are the Differences Between Backend Technologies? | Backend development is a crucial aspect of building robust, scalable, and efficient applications. As... | 0 | 2024-07-09T05:56:56 | https://dev.to/ravi_makhija/rest-vs-graphql-what-are-the-differences-between-backend-technologies-10l | restapi, graphql, backend, backenddevelopment | Backend development is a crucial aspect of building robust, scalable, and efficient applications. As the backbone of any software architecture, choosing the right backend technology can significantly impact the performance and flexibility of your application.
However, Two prominent technologies are REST (Representational State Transfer) and GraphQL. Each has its own strengths and weaknesses, making it essential to understand their differences to make an informed decision for your project.
In this article, we cover REST and GraphQL. What is the difference between them? And some additional information. Let’s get started!!]
## What is REST?
### Overview of REST
REST is an architectural style for designing networked applications. It relies on a stateless, client-server communication model and is primarily used for building web services.
**Core principles:**
- Statelessness: Each request from a client to a server must contain all the information needed to understand and process the request. The server does not store any client context between requests.
- Caching: Responses from the server can be marked as cacheable or non-cacheable, improving performance by reusing data when possible.
- Uniform Interface: RESTful APIs adhere to standard HTTP methods (GET, POST, PUT, DELETE) and use URLs to identify resources.
- Layered System: The architecture can have multiple layers, such as security layers, load-balancing layers, and caching layers, each adding to the modularity and scalability of the system.
### How REST Works?
In REST, the client sends an HTTP request to a server, and the server responds with the requested data. Each request is independent and stateless, meaning the server does not retain any client-specific information between requests.
RESTful endpoints and HTTP methods: REST APIs are organized around resources, identified by URLs (Uniform Resource Locators). Each resource can be manipulated using standard HTTP methods:
- GET: Retrieve a resource.
- POST: Create a new resource.
- PUT: Update an existing resource.
- DELETE: Remove a resource.
## What is GraphQL?
### Overview of GraphQL
GraphQL is a query language for APIs and a runtime for executing those queries by using a type system you define for your data. Developed by Facebook in 2012, it was released as an open-source project in 2015.
**Core principles:**
- Schema: GraphQL APIs are structured around a schema, which defines the types and relationships between data objects.
- Resolvers: Functions that handle the data fetching logic, connecting the query language with the actual data sources.
- Single Endpoint: Unlike REST, GraphQL uses a single endpoint for all requests, allowing for more flexible and efficient data retrieval.
### How GraphQL Works?
Query language: GraphQL allows clients to request exactly the data they need, avoiding over-fetching and under-fetching problems. Clients can specify their queries in a structured format, and the server responds with the requested data.
GraphQL schema and resolvers: The schema defines the structure of the API, including types, queries, and mutations. Resolvers are functions that fetch the required data for each field in the schema, enabling a modular and flexible data retrieval system.
## Key Differences Between REST and GraphQL
### Data Fetching
- REST: Utilizes multiple endpoints, each designed to return a specific resource or set of resources. This can lead to over-fetching (retrieving more data than needed) or under-fetching (retrieving insufficient data).
- GraphQL: Uses a single endpoint with flexible queries, allowing clients to request exactly the data they need in a single request, minimizing over-fetching and under-fetching issues.
### Performance
- REST: Can suffer from performance issues due to over-fetching and under-fetching. Multiple requests may be needed to gather all required data, increasing latency and server load.
- GraphQL: Enables efficient data retrieval by allowing clients to specify their exact data requirements, reducing the number of requests and improving performance.
### Flexibility
- REST: Has a fixed structure with predefined endpoints and responses. Changes to the API often require versioning and updates to both the server and client code.
- GraphQL: Offers customizable queries, allowing clients to adapt to changes in the API without the need for versioning. This flexibility makes it easier to evolve the API over time.
## Advantages of REST
### Simplicity
REST is easy to implement and understand, leveraging standard HTTP methods and status codes. Its straightforward approach makes it accessible to developers with varying levels of expertise.
### Caching
Built-in support for caching with HTTP headers helps improve performance by reusing previously fetched data, reducing server load and response times.
### Browser Compatibility
REST is well-suited for web applications, as it aligns closely with the HTTP protocol used by browsers. This compatibility simplifies the integration of RESTful APIs with web frontends.
## Advantages of GraphQL
### Efficient Data Loading
GraphQL allows clients to fetch exactly what is needed, reducing the amount of data transferred over the network and improving the efficiency of data loading.
### Strong Typing
The schema and type system in GraphQL provide a clear and structured API, making it easier to understand and use. Strong typing also helps catch errors early in the development process.
### Real-Time Data
GraphQL supports subscriptions, enabling real-time updates to clients when data changes. This feature is particularly useful for applications that require live data feeds, such as social media or collaboration tools.
## Limitations of REST
### Data Handling
REST can struggle with over-fetching and under-fetching issues, where clients receive either too much or too little data in a single request. This inefficiency can impact performance and user experience.
Versioning
API versioning can be challenging in REST, as changes to the API often require new versions and updates to both server and client code. Managing multiple versions can be complex and error-prone.
## Limitations of GraphQL
### Complexity
GraphQL has a steeper learning curve compared to REST. Its flexible query language and schema-based approach require a deeper understanding of the underlying concepts and best practices.
### Caching Challenges
GraphQL requires custom caching solutions, as it does not rely on standard HTTP caching mechanisms. Implementing efficient caching strategies can be more complex and time-consuming.
## Choosing Between REST and GraphQL
### Project Requirements
Evaluating the specific needs and constraints of your project is crucial in choosing between REST and GraphQL. Consider factors such as data complexity, performance requirements, and the nature of client-server interactions.
### Team Expertise
The skill set and experience of your development team play a significant role in the decision. If your team is already familiar with REST, it might be more efficient to stick with it. However, if they are open to learning and adopting new technologies, GraphQL could offer long-term benefits.
## Future Scalability
Consider the future scalability of your application. GraphQL's flexibility and efficiency can make it easier to scale and evolve your API over time, accommodating changing requirements and new features.
## Implementing REST and GraphQL in Backend Development
### Best Practices for REST
- Standardization and documentation: Follow industry standards and provide clear documentation to ensure consistency and ease of use.
- Security measures: Implement robust security practices, such as authentication, authorization, and data validation, to protect your API.
### Best Practices for GraphQL
- Schema design and optimization: Design a well-structured schema and optimize it for performance. Regularly review and update the schema to accommodate new requirements.
- Security measures: Apply security best practices, such as query complexity analysis, depth limiting, and input validation, to safeguard your GraphQL API.
## Security Considerations
### REST Security
Common vulnerabilities in REST APIs include unauthorized access, data exposure, and injection attacks. Mitigations involve implementing authentication, encryption, input validation, and regular security assessments.
### GraphQL Security
GraphQL APIs can face vulnerabilities such as excessive data exposure, query complexity attacks, and insufficient input validation. Mitigations include enforcing query complexity limits, implementing robust authentication and authorization, and regularly reviewing security practices.
## Hiring Backend Developers for REST and GraphQL
### Skills and Expertise
When [hiring backend developers](https://www.gurutechnolabs.com/hire-back-end-developers/), look for candidates with strong expertise in REST and GraphQL, as well as experience in designing and implementing scalable and secure APIs. Key skills include knowledge of HTTP protocols, data modeling, and performance optimization.
To build robust and scalable backend systems, consider [hiring dedicated developers](https://www.gurutechnolabs.com/hire-dedicated-developers/) with experience in REST and GraphQL. Their expertise can help you navigate the complexities of backend development and ensure the success of your project.
## Conclusion
Choosing between REST and GraphQL depends on various factors, including project requirements, team expertise, and future scalability. Both technologies offer unique advantages and limitations, making it essential to evaluate your specific needs before making a decision.
By understanding the key differences and best practices for each, you can build a more efficient and effective backend system that meets your application's demands.
| ravi_makhija |
1,916,799 | Adding Progress Bar to Records, Mastering Prompt Templates, CI/CD Checklist | This is a weekly newsletter of interesting Salesforce content See the most interesting... | 25,293 | 2024-07-09T05:57:37 | https://dev.to/sfdcnews/adding-progress-bar-to-records-mastering-prompt-templates-cicd-checklist-2bcl | salesforce, salesforcedevelopment, salesforceadministration, salesforceadmin | # This is a weekly newsletter of interesting Salesforce content
See the most interesting #Salesforce content of the last days 👇
✅ **[How to Add a Progress Bar to Salesforce Records](https://salesforcetime.com/2024/06/19/how-to-add-a-progress-bar-to-salesforce-records/)**
Indicators in Salesforce highlight key data with icons and colors, making it easier for users to focus on important information. Adding a progress bar to records can visually represent task completion, helping users assess progress and prioritize efforts. For example, a progress bar can be added to the Opportunity object to display probability value.
✅ **[Unleashing Productivity: Master Prompt Templates with Flow Tools](https://admin.salesforce.com/blog/2024/unleashing-productivity-master-prompt-templates-with-flow-tools)**
Prompt Builder was released on February 29 and has since been used by Salesforce Admins for a variety of tasks, such as summarizing records and creating rich emails. It is important to ground prompts in CRM data using merge fields, flows, and Apex classes. However, the current challenge is the number of clicks required to get a GenAI response, especially for Field Generation templates, which could impact adoption and usage.
✅ **[CI/CD checklist for Salesforce Architects | Salto](https://www.salto.io/blog-posts/ci-cd-checklist-for-salesforce-architects)**
Salesforce architects should be involved in the release strategy of a Salesforce org, and this includes having some oversight on how changes will flow from one environment to another and what version control model will be used. Most of this translates to configuring what is known as a CI/CD (Continuous Integration/Continuous Delivery) pipeline. Before we get into the specifics, let's cover some terminology.
✅ **[Unleash your Salesforce power from anywhere with the ForceDev App ](https://blog.enree.co/2024/02/madeinitaly-unleash-your-salesforce-power-from-anywhere-with-the-forcedev-app)**
The ForceDev App is a mobile toolkit for managing Salesforce organizations. It is a must-have for Salesforce Developers/Administrators, offering mobility and productivity. Download it now from Google Play Store or Apple Store to code, monitor, and optimize your Salesforce org on the go.
✅ **[Using Flow to Reset Password](https://salesforcetime.com/2023/06/27/using-flow-to-reset-password/)**
Check out a flow with an invocable action allows for resetting passwords for multiple users efficiently.
Check these and other manually selected links at https://news.skaruz.com
Click a Like button if you find it useful.
Thanks.
| sfdcnews |
1,916,800 | Day 1 | For the initial refresh of my Python Programming started with the print statements, format,... | 0 | 2024-07-09T05:58:36 | https://dev.to/ramesh_ramasamy/day-1-bhm | python, refresh, cheatsheet, programming | For the initial refresh of my Python Programming started with the print statements, format, float/string display, concatenation (with/out space), displaying special character (such as \ (backslash), " (double-quotes))
For all the the programming execution used the online compilers **(link: https://www.programiz.com/python-programming/online-compiler/)**
My PC also having Python 3.12.x
PS C:\Users\usr> python --version
**Python 3.12.3**
----- below is some sample experiments and its coding part -----
**How do you print the string “Hello, world!” to the screen?
**
`print("Hello, world!")
`
**How do you print the value of a variable name which is set to “Syed Jafer” or Your name?
**
`name="First Second"
print("Name: ", name)`
**How do you print the variables name, age, and city with labels “Name:”, “Age:”, and “City:”?
**
`name="First Second"
age=25
City="Current Place"
print("Name:", name)
print("Age:", age)
print("City:", City)`
**How do you use an f-string to print name, age, and city in the format “Name: …, Age: …, City: …”?
**
`name="First Second"
age=25
City="Current Place"
print(f"Name:", name)
print(f"Age:", age)
print(f"City:", City)`
**How do you concatenate and print the strings greeting (“Hello”) and target (“world”) with a space between them?
**
`greeting="Hello"
target="world"
print(greeting, target)`
**How do you print three lines of text with the strings “Line1”, “Line2”, and “Line3” on separate lines?
**
`text1="Line1"
text2="Line2"
text3="Line3"
print(text1+"\n"+text2+"\n"+text3)`
**How do you print the string He said, "Hello, world!" including the double quotes?
**
`print(f"\"Hello World\"")`
**How do you print the string C:\Users\Name without escaping the backslashes?
**
`print(f"c:\\Users\\Name")`
**How do you print the result of the expression 5 + 3?
**
`result=5+3
print(result)`
**another way
**
`print(5+3)`
**How do you print the strings “Hello” and “world” separated by a hyphen -?
**
`print(f"hello"+"-"+"world")`
**How do you print the string “Hello” followed by a space, and then print “world!” on the same line?
**
`print(f"Hello", "World!")`
**How do you print the value of a boolean variable is_active which is set to True?
**
`is_active=True
print(is_active)`
**How do you print the string “Hello ” three times in a row?
**
`print(3*"Hello")`
**How do you print the sentence The temperature is 22.5 degrees Celsius. using the variable temperature?
**
`temperature=22.5
print("The temperature is", temperature, "degrees Celsius")`
**How do you print name, age, and city using the .format() method in the format “Name: …, Age: …, City: …”?
**
`name="First Second"
age=25
city="Current living"
print("Name: {}, Age: {}, City: {}".format(name, age, city))`
**How do you print the value of pi (3.14159) rounded to two decimal places in the format The value of pi is approximately 3.14?
**
`pi = 22/7 #3.14159
print("Normal display as float", pi)
print("The value of pi after 2 decimal truncated using format is {:.2f}".format(pi))`
**How do you print the words “left” and “right” with “left” left-aligned and “right” right-aligned within a width of 10 characters each?
**
`left="Left-aligned"
right="Right-Aligned"
print("Left: {:.10s} Right: {:.10s}".format(left, right))`
| ramesh_ramasamy |
1,916,803 | zkSync’s Elastic Chain: A Bold Move Towards More Interconnected Layer3s | For most of today’s blockchains, a common challenge is ‘state and liquidity fragmentation’, which... | 0 | 2024-07-09T06:02:53 | https://www.zeeve.io/blog/zksyncs-elastic-chain-a-bold-move-towards-more-interconnected-layer3s/ | rollups, zksynchyperchain | <p>For most of today’s blockchains, a common challenge is ‘state and liquidity fragmentation’, which eventually leads to bad UX and scalability limitations. To provide a solution, ZkSync has designed an ‘Elastic Chain’ that powers a more interconnected ecosystem of independent Zk Chains. Matter Labs, the development & research team behind the ZkSync protocol has referred to this innovative elastic chain concept as one of the bold moves that they outlined in the zkSync 3.0 roadmap. </p>
<p>As you may already know, ‘Elastic Chain’ is a very new addition to the zkSync protocol. Hence, there are confusions around this concept or lack of awareness can be seen among L2/L3 communities. This article allows you to dive deeper and get in-depth information about the zkSync Elastic chain. </p>
<figure class="wp-block-image aligncenter size-large"><a href="https://app.zeeve.io/auth/signup?serviceURL=https://app.zeeve.io/zksync-hyperchains-zkrollups"><img src="https://www.zeeve.io/wp-content/uploads/2024/07/Launch-a-full-fledged-zkSync-Hyperchain-Testnet-with-Zeeve-RaaS-1024x213.jpg" alt="zkSync Elastic Chain" class="wp-image-71608"/></a></figure>
<h2 class="wp-block-heading" id="h-a-snapshot-of-zksync-3-0-roadmap">A snapshot of ZkSync 3.0 Roadmap </h2>
<p>The ZKsync team has unveiled a significant aspect of their zkSync 3.0 roadmap, transitioning the <a href="https://www.zeeve.io/appchains/zksync-hyperchains-zkrollups/">ZKsync</a> to an innovative "elastic chain" network with the recent v24 update. This is similar to the zkSync 2.0 roadmap that brought along the concept of zkSync Era chains and a lot of other exciting upgrades. Basically, the goal here is to make the whole zkSync ecosystem more interconnected, secure, and scalable. For that, ZKsync has unveiled a list of significant upgrades in addition to the Elastic Chain structure. Let’s quickly check them out:</p>
<ul><!-- wp:list-item -->
<li><strong>Lowering down the transactions fee</strong><strong>- </strong>with v24 upgrade, zkSync aims to support 16 blobs per Layer1 batch, which is currently 6. The more blobs are supported in a single batch, the cheaper transactions can be offered.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Getting zkSync Bridgehub ready</strong><strong>- </strong>zkSync Bridgehub is getting prepared to offer a solid interoperability foundation for ZK Stack chains, allowing them to share liquidity and users seamlessly.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Addition of new precompiles</strong>- zkSync will now support new precompiles for P256Verify and EVM curve operations. P256Verify will allow users to sign transactions in a secure and user-friendly manner based on hardware security, but not the traditional 24-words seed phrases.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>New pricing for some smart contracts</strong>- zkSync plans to offer cheaper transactions for the smart contracts that are well written and thoroughly optimized. </li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Gasless .transfer/.send calls</strong>- Partial support for gasless transactions made for .transfer/.send functions.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>EVM bytecode support- </strong>zkSync team may soon upgrade support for contract execution through EVM bytecode instead of EraVM bytecode, further simplifying the operations.</li>
<!-- /wp:list-item -->
<!-- wp:list-item -->
<li><strong>Validum mode, custom DA, and more-</strong> v24 upgrade has been finalized for the support of validium node, custom DA, as well as custom base tokens on all the zkStack chains and thus, these features will be available soon.</li>
<!-- /wp:list-item --></ul>
<h2 class="wp-block-heading" id="h-now-let-s-understand-zksync-s-elastic-chain-concept-nbsp">Now, let’s understand zkSync's Elastic Chain concept </h2>
<p>As the name suggests, Elastic chain powers an infinitely extensible ecosystem of standalone ZKSync Layer2 and Layer3 chains– be it rollups, validiums, or volitions. You can think of the Elastic chain somewhat similar concept to Polygon’s Aggregation Layer because that is too designed to bring uniformity across chains via cryptographic proofs. </p>
<p>While the purpose may be the same, the Elastic chain at ZkSync works differently with its specific components and functions. With Elastic chain, ZkSync now6 aims to offer a seamlessly interoperable rollup network secured through math for a uniformed plus intuitive UX. Simply stated, Elastic chain will work to unite multiple Zkstack chains in the backend, but this won’t impact the user experience, they will still have the same experience of using a standalone chain. </p>
<h2 class="wp-block-heading" id="h-key-components-of-zksync-elastic-chain-nbsp">Key components of zkSync Elastic chain </h2>
<p>The Elastic chain architecture is based on three core components (according to Matter Labs); ‘Native Token Vault’, ‘Shared router, and Z Gateway. These components are explained below:</p>
<p><strong>Native token vault and shared router- </strong>Both the native token and shared router refers to smart contracts running on Ethereum that are accountable to ensure seamless management of the network's state while handling all the chain registrations. </p>
<p><strong>ZK Gateway- </strong>Another important Elastic chain component is ZK Gateway acts as a middleware to enable connectivity between Zksync chains and Ethereum, facilitating end-to-end interoperability. With that, ZK Gateway allows different ZKSync L2s and L3s to efficiently interact and engage in transactional activities while inheriting robust security from Ethereum Layer1. </p>
<p>These components together ensure that all the ZkSync chains can communicate with each other in a unified ecosystem, but at the same time, they don’t lose the key properties that make zkSync chains so powerful. </p>
<h2 class="wp-block-heading" id="h-how-elastic-chain-will-benefit-the-zksync-ecosystem">How Elastic chain will benefit the ZkSync Ecosystem?</h2>
<p>Elastic chain brings a range of benefits for the Zk Sync ecosystem, including the following main offerings:</p>
<h3 class="wp-block-heading" id="h-interconnected-expandable-network">Interconnected, expandable network:</h3>
<p>Forming a network of interconnected and expandable zkSync chains is the main goal behind the Elastic chain innovation, which the zkSync protocol is achieving well. All the chains- including high-performance rollups and validiums can now united across an elastic network and more Zk chains can be added as required to expand the network’s capability to handle higher transaction volume without the need for complex hardware requirements for their verification.</p>
<h3 class="wp-block-heading" id="h-shared-liquidity-via-trustless-communication-nbsp">Shared liquidity via trustless communication: </h3>
<p>Zk Chains powered within Elastic chain network offer native and completely frictionless interoperability enabled in a consistent plus easy-to-use way. This lays down the foundation for trustless communication and transferability of assets leveraging unified liquidity and a full range of zkSync ecosystem users. Despite such a complex operation, Elastic chain claims that there will not be any security challenges as the protocol entirely relies on cryptographic proofs to maintain battle-tested security. </p>
<h3 class="wp-block-heading" id="h-unmatched-ux">Unmatched UX:</h3>
<p>With Elastic chain, ZKsync supports automatic creation of modular smart contracts like for token vault and shared router, thereby enabling a customizable and highly engaging UX. Additionally, onboarding for zkSync users is now simplified with one-tap approach enabled through FaceID and passkeys– an excellent alternative to complex seed phrases that are prone to security risks and hacking. </p>
<h2 class="wp-block-heading" id="h-who-all-are-building-with-elastic-chains">Who all are building with Elastic chains?</h2>
<p>As we see, ZKSync Elastic chain is quite a new concept and hence the number of projects are limited as of now. However, the zkSync team recently revealed more than a dozen of ZKSync chains launching officially on Elastic chains and 20+ are expected to go live by this year’s end. Here’s tweet:</p>
<figure class="wp-block-embed aligncenter is-type-rich is-provider-twitter wp-block-embed-twitter"><div class="wp-block-embed__wrapper">
https://twitter.com/zkLumi/status/1806712576220270927
</div></figure>
<p>For example, <strong>Zero Network</strong> has announced their testnet live just last month, aiming to offer a optimized and seamless DeFi experience for their users and thereby build a mass market. Besides the main benefits of zkSync Elastic chain like inter-chain interoperability, EVM-compatibility, and top-notch security, Zero Network strives mainly to unlock enchanting on-chain experience with sponsored or gasless transactions enabled through native account abstraction (AA). Instead of imposing gas fees, Zero will use any token to cover the network cost. </p>
<p>Then, there is Memento blockchain– a network dedicated for specialized finance and tech-based blockchain services. Memento is building a Layer2 hyperchain to provide a secure, customizable, and privacy-focused environment for institutional solutions and dApps to thrive endlessly. Their L2 is built in collaboration with Zeeve RaaS (rollups-as-a-service) stack, which their CTO–Fabrizio Audisio confirmed in his tweet.</p>
<figure class="wp-block-embed aligncenter is-type-rich is-provider-twitter wp-block-embed-twitter"><div class="wp-block-embed__wrapper">
https://twitter.com/FabAudisio/status/1792517543481192787
</div></figure>
<p>Similarly, <strong>PlayFi gaming</strong> has introduced PlayChain– a ultra-fast, innovative Layer2 ZKSync chain that has joined the Elastic chain ecosystem for extremely fast transactions, no virtual fees, and unified liquidity. Another good examples are Cronos zkEVM and Lens Network that have come up with unique ZK Stack chains powered with uninterrupted flow of users & liquidity, 100% decentralization, real sustainable gas fees, zero security compromise, and other next-level benefits. </p>
<p>Other names in this list are Quark ID (digital identity network), Noodle (digital trust network), ZK Candy (gaming hyperchain), Space and time (decentralized data warehouse), GRVT Exchange (hybrid exchange), Trala (web3 gaming platform), and Zerion (web3 social wallet) that have announced to join zkSync Elastic chain network to leverage its unparalleled web3 features. </p>
<h2 class="wp-block-heading" id="h-tap-into-zksync-s-elastic-chain-ecosystem-with-zeeve-raas-nbsp">Tap into zkSync’s Elastic Chain ecosystem with Zeeve RaaS </h2>
<p>Like we discussed, zkSync’s Elastic chain concept is new and is gradually adding new chains to the unified ecosystem. 20+ projects are already expected to join their interconnected ecosystem this year, but the actual growth can be surprising. And, if you are planning to launch your zkSync L2 or L2, Zeeve RaaS is ready to offer benefits like low-cost deployment and rapid launch. Each heavy listing– whether its launch, 3rd party service integration, or infrastructure management, will be handled by <a href="https://www.zeeve.io/rollups/">Zeeve RaaS platform</a> and our proactive team so that you can focus on other critical aspects.</p>
<p>Also, you can set up a fully-functional zkSync hyperchain local testnet with our 1-click sandbox tool for absolutely no charges. Further, you will get hands-on assistance for public testnet/ mainnet deployment and on-going maintenance. Zeeve RaaS has added support for 40+ 3rd party integrations and it natively offers all the essential rollup components like block explorers, testnet faucets, and wallets to launch a modular zkSync chain. </p>
<p>For more information about Zeeve RaaS, connect with us. You also have the ease to send your queries via mail or <a href="https://www.zeeve.io/talk-to-an-expert/">schedule one-on-one calls</a> for a detailed discussion.</p> | zeeve |
1,916,804 | Aluminum vs. Steel: Choosing the Right Material for Aerosol Cans | The report "Aerosol Cans Market by Material (Aluminium, Plastic), Product Type (1-piece cans, 3-piece... | 0 | 2024-07-09T06:03:13 | https://dev.to/aryanbo91040102/aluminum-vs-steel-choosing-the-right-material-for-aerosol-cans-3haf | news | The report "Aerosol Cans Market by Material (Aluminium, Plastic), Product Type (1-piece cans, 3-piece cans), Type (Liquefied Gas, Compressed Gas), End-use Sector (Personal care, Healthcare, Household care), & Region-Global Forecast to 2028", size is estimated to be USD 11.2 billion in 2023, and it is projected to reach USD 13.6 billion by 2028 at a CAGR of 4.0%.
Rising population, improving living standards, and rising urbanization led to an increase in demand from end-use sectors such as personal care, household care, healthcare, automotive, and others, which drives the market of Aerosol Cans during the forecast period. Apart from this, technological advancements and increasing awareness towards sustainability also help in driving the market of Aerosol Cans during the forecast period. The availability of alternatives in terms of packaging and price is becoming the main restraining factor in this market. However, growing opportunities in emerging economies and the development of eco-friendly packaging provide lucrative opportunities for aerosol cans producers. Stringent government regulations are the major challenge of this market.
Browse in-depth TOC on "Aerosol Cans Market"
254 – Tables
50 – Figures
216 – Pages
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By Material, Aluminum accounted for the largest share in 2022
The aluminum material segment held the largest market share in the global aerosol cans market throughout the forecast period. Aluminum is a highly favored material for packaging due to its extensive array of advantageous properties. It boasts attributes such as being lightweight, shatterproof, impermeable, flexible, corrosion-resistant, and recyclable. Aluminum aerosol cans effectively contain volatile components within the contents and maintain the product's integrity over an extended period, contributing significantly to its substantial market dominance in the global aerosol cans industry.
By Type, Liquefied Gas Propellant accounted for the largest share in 2022
The segment of liquefied gas propellant type held the dominant position in the global aerosol cans market for the duration of the forecast period. With liquefied gas propellants, the advantage lies in their ability to ensure a consistent pressure remains in the space above the product, even as the product level decreases. This unique feature contributes significantly to sustaining the spray's performance throughout the entire lifespan of the aerosol can, thereby underpinning the substantial market share of liquefied gas propellants.
By Product Type, 1-piece aerosol cans accounted for the largest share in 2022
Within the global aerosol cans market, the 1-piece aerosol cans product type segment secured the largest market share throughout the forecast period. This segment is experiencing an upward trajectory in its growth due to the array of benefits it provides. These advantages encompass leak-proof, airtight, and lightweight properties, the capacity to withstand elevated pressures, resistance to corrosion and heat, as well as the seamless and unbreakable nature of the cans.
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By End-use Sector, Personal Care accounted for the largest share in 2022.
During the forecast period, the personal care end-use sector segment took the lead in the global aerosol cans market. Within the personal care end-use sector, aerosol cans play a crucial role in packaging various products, including deodorants, facial and body creams, shaving foams, and perfumes. The growing disposable income in emerging economies has led to increased spending on personal care products, which, in turn, has fueled the growth of the aerosol cans market.
Asia Pacific is the fastest-growing market for the Aerosol Cans market
Asia Pacific is the fastest-growing market during the forecast period. The robust growth of the aerosol cans market in the APAC region can be attributed to multiple factors, including the rising disposable income levels in developing economies like China and India. Key drivers encompass industrialization, the expansion of the convenience food industry, increased manufacturing activities, elevated disposable incomes, heightened consumption levels, and a surge in retail sales. Furthermore, heightened spending on packaged foods and beauty care products has contributed to the escalating demand for aerosol cans within the region.
Aerosol Cans Market Key Players
The Aerosol Cans chemicals market comprises major players such Ball Corporation (US), Trivium Packaging (Netherlands), Crown (US), Mauser Packaging Solutions (US), Toyo Seikan Co. Ltd. (Japan), Nampak Ltd. (South Africa), CCL Container (US), Colep Packaging (Portugal), CPMC Holdings Ltd. (China), and Guangdong Sihai Iron-Printing and Tin-Making Co., Ltd.(China). Expansions, acquisitions, joint ventures, and new product developments are some of the major strategies adopted by these key players to enhance their positions in the Aerosol Cans market.
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Ball Corporation (US) provides metal packaging for beverages, foods, and household products. It operates through the following business segments, namely, Global Beverage Packaging, Aerospace, Aerosol Packaging, and Aluminum Cups. The Global Beverage Packaging includes beverages cans, Bevarage Ends & Tabs, .Beverage Bottles, Household & Personal Care Bottels, and Aluminum Slugs. In the Aerosol Packaging segment, the company offers several aerosol cans which can be used by various end-use sectors i.e. personal care, household care, etc. For government and commercial customers, the company designs, develops, and manufactures innovative aerospace systems and related technologies such as instruments and sensors, spacecraft and space science, electronic warfare, aerospace technology and components, radio frequency systems and components, antennas and microwave systems, and data exploitation solutions.
TABLE OF CONTENTS
1 INTRODUCTION (Page No. - 32)
1.1 STUDY OBJECTIVES
1.2 MARKET DEFINITION
1.2.1 INCLUSIONS AND EXCLUSIONS
1.3 MARKET SCOPE
FIGURE 1 AEROSOL CANS MARKET SEGMENTATION
1.3.1 REGIONS COVERED
1.3.2 YEARS CONSIDERED
1.4 CURRENCY CONSIDERED
1.5 UNIT CONSIDERED
1.6 STAKEHOLDERS
1.7 LIMITATIONS
1.8 SUMMARY OF CHANGES
2 RESEARCH METHODOLOGY (Page No. - 36)
2.1 RESEARCH DATA
FIGURE 2 AEROSOL CANS MARKET: RESEARCH DESIGN
2.1.1 SECONDARY DATA
2.1.1.1 Key data from secondary sources
2.1.2 PRIMARY DATA
2.1.2.1 Key data from primary sources
FIGURE 3 KEY INDUSTRY INSIGHTS
FIGURE 4 BREAKDOWN OF PRIMARY INTERVIEWS
2.2 BASE NUMBER CALCULATION
2.2.1 SUPPLY-SIDE APPROACH – 1
FIGURE 5 AEROSOL CANS MARKET: SUPPLY-SIDE APPROACH 1
2.2.2 SUPPLY-SIDE APPROACH – 2
FIGURE 6 AEROSOL CANS MARKET: SUPPLY-SIDE APPROACH 2
2.2.3 SUPPLY-SIDE APPROACH – 3
FIGURE 7 AEROSOL CANS MARKET: SUPPLY-SIDE APPROACH 3
2.3 FACTOR ANALYSIS
2.3.1 INTRODUCTION
2.3.2 DEMAND-SIDE ANALYSIS
2.3.3 SUPPLY-SIDE ANALYSIS
2.4 MARKET SIZE ESTIMATION
FIGURE 8 MARKET SIZE ESTIMATION METHODOLOGY: BOTTOM-UP APPROACH
FIGURE 9 MARKET SIZE ESTIMATION METHODOLOGY: TOP-DOWN APPROACH
2.5 DATA TRIANGULATION
FIGURE 10 AEROSOL CANS MARKET: DATA TRIANGULATION
2.6 RESEARCH ASSUMPTIONS
2.7 RESEARCH LIMITATIONS
2.8 IMPACT OF RECESSION
3 EXECUTIVE SUMMARY (Page No. - 46)
FIGURE 11 ALUMINUM LEAD AEROSOL CANS MARKET DURING FORECAST PERIOD
FIGURE 12 1-PIECE AEROSOL CANS SEGMENT TO BE LARGER SEGMENT THROUGH 2028
FIGURE 13 LIQUEFIED GAS PROPELLANT TO DOMINATE AEROSOL CANS MARKET BY 2028
FIGURE 14 PERSONAL CARE SEGMENT TO LEAD MARKET FOR AEROSOL CANS THROUGH 2028
FIGURE 15 ASIA PACIFIC TO BE FASTEST-GROWING MARKET DURING FORECAST PERIOD
4 PREMIUM INSIGHTS (Page No. - 50)
4.1 ATTRACTIVE OPPORTUNITIES FOR PLAYERS IN AEROSOL CANS MARKET
FIGURE 16 EMERGING COUNTRIES OFFER ATTRACTIVE OPPORTUNITIES IN AEROSOL CANS MARKET
4.2 EUROPE: AEROSOL CANS MARKET, BY MATERIAL & COUNTRY
FIGURE 17 EUROPE: UK ACCOUNTED FOR LARGEST SHARE OF AEROSOL CANS MARKET IN 2022
4.3 AEROSOL CANS MARKET, BY MATERIAL
FIGURE 18 ALUMINUM SEGMENT TO LEAD AEROSOL CANS MARKET DURING FORECAST PERIOD
4.4 AEROSOL CANS MARKET, BY END-USE SECTOR
FIGURE 19 PERSONAL CARE TO BE FASTEST-GROWING SEGMENT DURING FORECAST PERIOD
4.5 AEROSOL CANS MARKET, BY TYPE
FIGURE 20 LIQUEFIED GAS PROPELLANT TO BE FASTER-GROWING SEGMENT DURING FORECAST PERIOD
4.6 AEROSOL CANS MARKET, BY PRODUCT TYPE
FIGURE 21 1-PIECE CANS TO BE FASTER-GROWING SEGMENT DURING FORECAST PERIOD
4.7 AEROSOL CANS MARKET, BY KEY COUNTRY
FIGURE 22 AEROSOL CANS MARKET IN INDIA TO RECORD HIGHEST CAGR FROM 2023 TO 2028
5 MARKET OVERVIEW (Page No. - 54)
5.1 INTRODUCTION
5.2 MARKET DYNAMICS
FIGURE 23 DRIVERS, RESTRAINTS, OPPORTUNITIES, AND CHALLENGES IN AEROSOL CANS MARKET
5.2.1 DRIVERS
5.2.1.1 Increasing demand from personal care and cosmetic industries
FIGURE 24 EUROPEAN MARKET FOR COSMETIC PRODUCTS (RSP BASIS) (USD BILLION)
5.2.1.2 Recyclability of aerosol cans
5.2.1.3 Convenience factors
5.2.1.4 Growing automotive industries to drive demand for spray paints
TABLE 1 PRODUCTION OF MOTOR VEHICLES BY COUNTRY IN EUROPE, 2019–2022 (UNITS)
5.2.2 RESTRAINTS
5.2.2.1 Availability of alternatives in terms of packaging and price
5.2.3 OPPORTUNITIES
5.2.3.1 Emerging economies offer high growth potential
5.2.3.2 Development of eco-friendly packaging
5.2.4 CHALLENGES
Continued... | aryanbo91040102 |
1,916,813 | Python full stack course|full stack developer python | Python full stack developer course in hyderabad PYTHON Full Stack Developer - (V CUBE) Ready to... | 0 | 2024-07-09T06:10:23 | https://dev.to/mounika_vcube_f01a5a6264c/python-full-stack-coursefull-stack-developer-python-298o | python, django | **Python full stack developer course in hyderabad**
PYTHON Full Stack Developer - (V CUBE)
Ready to master Python Full Stack development. Look no further than V CUBE Software Solutions we offer Python Full Stack training in Hyderabad! Our comprehensive course covers everything from beginner to advanced levels, ensuring you become a proficient Python Full Stack developer.
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A full-stack Python developer knows how to use the Python programming language suite for all types of projects. Python is a general-purpose high-level programming language that may be used to handle both structured and unstructured data.
At vcube software solutions Pvt. Ltd in Kukatpally, Hyderabad, you may learn full-stack Python programming and participate in real-world projects.
Why full stack python is so popular
Welcome to the Python and Django Full Stack Web Developer V Cube! In this Course We Cover Everything you need to know to build a website using Python, Django, and many more Web technologies!
Python: It would be used to process the user request in background.
Django: It is the web framework which coordinates all these components to make a web application.
MySQL: It is the open-source database to store the data permanently for long time.
HTML CSS: It would be use to prepare beautiful webpages with numerous styles.
Java Script: It is a client -side scripting language, which would be used to perform client -side validations
GIT: It is the repository to maintain the versions of your source code. | mounika_vcube_f01a5a6264c |
1,916,805 | 10 Ways to Visualize Data Structures and Algorithms for Better Understanding | Understanding data structures and algorithms (DSA) is crucial for anyone involved in software... | 0 | 2024-07-09T06:03:32 | https://dev.to/futuristicgeeks/10-ways-to-visualize-data-structures-and-algorithms-for-better-understanding-4bdc | webdev, beginners, dsa, algorithms | Understanding data structures and algorithms (DSA) is crucial for anyone involved in software development and computer science. However, DSA concepts can sometimes be abstract and challenging to grasp through textual explanations alone. Visualization tools and techniques can bridge this gap, providing intuitive and interactive ways to understand and retain complex DSA concepts. In this article, we will explore ten effective ways to visualize data structures and algorithms to enhance your learning and comprehension.
1. Interactive Websites and Platforms
Several interactive websites offer hands-on experiences with visualizing data structures and algorithms. These platforms provide step-by-step animations and simulations that illustrate how algorithms work in real-time.
Examples:
- VisuAlgo: Created by Dr. Steven Halim, this platform offers interactive visualizations for various algorithms and data structures, including sorting algorithms, graph algorithms, and data structures like stacks and queues.
- Algorithm Visualizer: An open-source project that allows users to visualize the execution of algorithms, making it easier to understand their inner workings.
2. Graphical User Interfaces (GUIs) and Software Tools
Software tools with graphical user interfaces (GUIs) are designed specifically for visualizing data structures and algorithms. These tools often allow users to input custom data and observe how algorithms manipulate this data.
Examples:
- JFLAP: A tool for visualizing formal languages and automata, useful for understanding theoretical computer science concepts.
- Gephi: A robust tool for visualizing and analyzing large networks and graphs, ideal for graph algorithms.
3. Online Courses with Visualization Components
Many online courses incorporate visualization tools to enhance learning. These courses often include interactive coding environments and visual aids to explain DSA concepts.
Examples:
- Coursera’s Data Structures and Algorithms Specialization: This series of courses includes visualizations and interactive exercises to reinforce learning.
- edX’s Algorithms and Data Structures MicroMasters Program: Offers a blend of theory and practical visualizations to aid understanding.
4. Mobile Applications
Mobile apps provide a convenient way to learn and visualize DSA concepts on the go. These apps often include interactive exercises, quizzes, and visualizations.
Examples:
- AlgoVisual: An app that provides step-by-step visualizations for common algorithms and data structures.
- Data Structures: An app offering visual aids and explanations for various data structures.
5. Python Libraries and Jupyter Notebooks
Python libraries and Jupyter Notebooks are excellent for creating custom visualizations. Libraries like Matplotlib, NetworkX, and Plotly can be used to create interactive graphs and plots.
Examples:
- Matplotlib and NetworkX: For visualizing graph algorithms and network structures.
- Jupyter Notebooks: Combine code, visualizations, and explanations in a single interactive document, ideal for educational purposes.
6. Educational YouTube Channels
YouTube channels dedicated to computer science and programming often use visual aids and animations to explain DSA concepts. These videos can provide a more engaging way to learn complex topics.
Examples:
- Computerphile: Offers videos on a wide range of computer science topics, including DSA.
- Khan Academy Computer Science: Features clear explanations and visualizations for various algorithms and data structures.
7. Visualization Plugins for IDEs
Integrated Development Environments (IDEs) often have plugins or built-in features that allow for the visualization of data structures during debugging or program execution.
Examples:
- Visual Studio Code Debugger: With extensions like Python extension for VS Code, you can visualize data structures during debugging.
- Eclipse IDE: Provides tools for visualizing data during program execution.
8. Educational Games and Interactive Challenges
Gamified learning platforms and interactive challenges make learning DSA fun and engaging. These platforms often incorporate visualizations to help users understand and solve problems.
Examples:
- HackerRank: Offers coding challenges with visual feedback on performance.
- CodinGame: Combines coding challenges with interactive and visual gameplay elements.
9. Static Visualizations and Infographics
Static visualizations like diagrams, flowcharts, and infographics can be highly effective for understanding DSA concepts. These can be included in textbooks, online articles, or as standalone study aids.
Examples:
- Textbooks with diagrams: Books like “Introduction to Algorithms” by Cormen, Leiserson, Rivest, and Stein include detailed diagrams.
- Online articles and infographics: Websites like GeeksforGeeks and Tutorialspoint offer static visual aids.
10. Community Forums and Discussion Boards
Community forums and discussion boards often feature user-generated visualizations and explanations of DSA concepts. Engaging in these communities can provide diverse perspectives and additional resources.
Examples:
- Stack Overflow: A rich source of user-generated content, including visual explanations and code snippets.
- Reddit’s r/learnprogramming: A community where users share visual aids and resources for learning DSA.
[Read complete article here at FuturisticGeeks](https://futuristicgeeks.com/10-ways-to-visualize-data-structures-and-algorithms-for-better-understanding/)
| futuristicgeeks |
1,916,806 | GraphQL Federation with Ballerina and Apollo - Part I | This article was written using Ballerina Swan Lake Update 8 (2201.8.0) Introduction ... | 28,015 | 2024-07-09T06:03:55 | https://www.thisaru.me/2023/10/02/graphql-federation-with-ballerina-part-I.html | graphql, federation, ballerina, apollo |
> This article was written using Ballerina Swan Lake Update 8 (2201.8.0)
## Introduction
### GraphQL: Striking a Balance Between Advantages and Limitations
GraphQL, a relatively recent addition to the API world, is in a constant process of evolution. Like any innovation, GraphQL possesses strengths and limitations that the dynamic GraphQL community aggressively addresses. Within GraphQL APIs, a key benefit is the accessibility of data from a single endpoint. Clients request exactly what they need, and the server responds with exactly the requested information. While this presents an appealing prospect for front-end developers, the same feature can turn into a nightmare for back-end developers. Imagine a GraphQL API with hundreds of types, each with multiple fields. Managing such an API would become an almost insurmountable challenge.
### Introducing GraphQL Federation: Unifying Complex APIs
Enter GraphQL Federation - an architectural paradigm. GraphQL Federation resolves the aforementioned issue by segmenting a singular GraphQL API into smaller components, known as subgraphs. These subgraphs, manageable and scalable, can be differentiated based on the separation of concerns. Various teams can then oversee different subgraphs, with GraphQL Federation seamlessly integrating them into a unified GraphQL API. This ensures a seamless experience for clients, harmonizing the intricacies behind the scenes, while making life easy for the back-end developers.
This article series will dive into GraphQL federation with Ballerina and Apollo Studio.
### How Does GraphQL Federation Work?
GraphQL Federation consists of 4 major components.
* Subgraph(s)
* Supergraph Schema
* GraphQL Router
* Schema Registry
#### Federated Subgraph
A federated subgraph functions as an independent GraphQL API, typically centered around a specific domain. Typically, a subgraph is overseen by a single team, with distinct implementation details and design preferences, encompassing choices related to data sources, programming languages, and deployment strategies. A federated supergraph, in turn, incorporates one or more of these subgraphs.
>**Note:** It's worth highlighting that GraphQL Federation permits the creation of a federated GraphQL service with a single subgraph. This approach offers scalability for greenfield projects, allowing seamless expansion. For brownfield projects, it facilitates a transition from a monolithic GraphQL API to a Federated GraphQL API.
#### Supergraph Schema
The supergraph schema is a GraphQL schema that encompasses all the subgraphs within the federation. Constructing the supergraph schema entails the composition of all individual subgraphs. A tool like Rover CLI possesses the capability to seamlessly combine these subgraphs into a supergraph schema.
> **Note:** In a later section of this article series, you will delve into the intricacies of the supergraph composition process.
#### GraphQL Router
The GraphQL router is the magical mediator between the GraphQL client and the subgraphs. True to its name, the router efficiently directs GraphQL requests from clients to their respective subgraphs. Particularly in scenarios involving numerous subgraphs with complex relationships, the router is smart enough to devise a query plan to gather necessary data from each subgraph by referring to the supergraph schema. Once the data is collected from these subgraphs, the router stitches them together, generating a singular response dispatched back to the client. This seamless orchestration ensures that the client's request is fulfilled precisely, all the while being blissfully unaware that the data has been seamlessly curated from multiple GraphQL APIs (subgraphs).
#### Schema Registry
In a federated architecture, the schema registry assumes the role of a version control system for the schema. This registry diligently records alterations made to the federated supergraph schema, ensuring efficient management and conflict reduction while safeguarding the integrity of the supergraph schema.
## What You'll Build
You will build a product review system using Ballerina and Apollo Federation in this example.
This service should provide the functionality to retrieve product information, user information, and review information. Additionally, it should provide the functionality to add new reviews to the products.
Although you are going to implement a federated GraphQL API, first you are going to define the GraphQL schema disregarding the federation aspect. Once the API is defined, it can be broken down into smaller subgraphs.
### Gathering Requirements
To define our GraphQL API effectively, it's crucial to start by gathering the requirements. The best way to do this is by articulating the use cases. Below, we present a set of simple, sample use cases that will guide the creation of our GraphQL API.
#### Use Case 1 - Retrieve Product Information
The first use case addresses the need for clients to retrieve a list of all products available. This is the GraphQL query for that purpose:
```graphql
query GetAllProducts {
products {
id
name
reviews {
rating
}
}
}
```
Additionally, we must cater to the requirement of retrieving a specific product by its unique ID. This is the corresponding GraphQL query:
```graphql
query GetProduct($id: ID!) {
product(id: $id) {
id
name
description
price
reviews {
title
rating
comment
}
}
}
```
#### Use Case 2 - Retrieve User Information
In the second use case, clients need to fetch a list of all users within the system. The GraphQL query for this purpose is as follows:
```graphql
query GetUsers {
users {
id
name
email
}
}
```
#### Use Case 3 - Retrieve Review Information
This scenario involves retrieving product review information, filtered either by user ID or product ID. Here are the GraphQL queries for these situations:
For reviews filtered by user ID:
```graphql
query GetReviews($userId: ID) {
reviews(userId: $userId) {
title
comment
rating
}
}
```
For reviews filtered by product ID:
```graphql
query GetReviews($productId: ID) {
reviews(productId: $productId) {
title
comment
rating
author {
id
name
}
}
}
```
#### Use Case 4 - Add Review
The final use case entails adding a new review to a product. This is achieved through a mutation operation, and the GraphQL mutation looks like this:
```graphql
mutation AddReview($input: ReviewInput!) {
addReview(reviewInput: $input): Review!
}
```
Where following is a sample ReviewInput:
```json
{
"input": {
"title": "Nice Product",
"comment": "Value for money",
"rating": 5
}
}
```
### Designing the API
Now that we have a clear understanding of the requirements through these use cases, we can proceed to define the schema for our GraphQL API. Building upon these use cases, we can derive the following GraphQL schema:
```graphql
type Query {
products: [Product!]!
product(id: ID!): Product
users: [User!]!
reviews(productId: ID, authorId: ID): [Review!]!
}
type Mutation {
addReview(reviewInput: ReviewInput!): Review
}
type Product {
id: ID!
name: String!
price: Float!
description: String!
reviews: [Review!]!
}
type Review {
id: ID!
title: String!
comment: String!
rating: Int!
product: Product!
author: User!
}
type User {
id: ID!
name: String!
email: String!
reviews: [Review!]!
}
input ReviewInput {
title: String!
comment: String!
productId: ID!
}
```
With our GraphQL API schema defined based on the gathered requirements, we can now proceed to the next step.
### Designing the Federated Supergraph
To transform our GraphQL schema into a federated supergraph, we employ a separation of concerns approach. The schema can be logically divided into three main areas: Products, Users, and Reviews. Each of these areas can be implemented as a separate subgraph, often managed by different teams.
It's important to note that in a federated GraphQL API, there may be types that span multiple subgraphs. These types are referred to as Entity types in GraphQL federation. To identify Entity types in our schema, we can annotate the schema with subgraph affiliations as comments.
>**Note:** These comments are for illustrative purposes only. They are not part of the GraphQL schema and they will not affect the schema in any way.
```graphql
type Query {
products: [Product!]! # Products Subgraph
product(id: ID!): Product # Products Subgraph
users: [User!]! # Users Subgraph
reviews(productId: ID, authorId: ID): [Review!]! # Reviews Subgraph
}
type Mutation {
addReview(reviewInput: ReviewInput!): Review # Reviews Subgraph
}
type Product {
id: ID! # Products Subgraph
name: String! # Products Subgraph
price: Float! # Products Subgraph
description: String! # Products Subgraph
reviews: [Review!]! # Reviews Subgraph
}
type Review {
id: ID! # Reviews Subgraph
title: String! # Reviews Subgraph
comment: String! # Reviews Subgraph
rating: Int! # Reviews Subgraph
product: Product! # Reviews Subgraph
author: User! # Reviews Subgraph
}
type User {
id: ID! # Users Subgraph
name: String! # Users Subgraph
email: String! # Users Subgraph
reviews: [Review!]! # Reviews Subgraph
}
input ReviewInput {
title: String! # Reviews Subgraph
comment: String! # Reviews Subgraph
productId: ID! # Reviews Subgraph
}
```
This annotation practice helps us understand the schema's design and the affiliation of types with different subgraphs.
In our schema, we have identified two `Entity` types:
* `Product` - This type spans both the Products Subgraph and the Reviews Subgraph.
* `User` - Similarly, the User type spans both the Users Subgraph and the Reviews Subgraph.
Now, with a well-structured GraphQL schema in place, we are ready to proceed to the next step of designing the federated supergraph.
## Implementing Federated Subgraphs in Ballerina
In this section, we'll walk through the process of implementing individual subgraphs using Ballerina. Each subgraph corresponds to a specific domain within our federated GraphQL API. We'll create three subgraphs: Products Subgraph, Users Subgraph, and Reviews Subgraph.
### Prerequisites
* Download and install [Ballerina](https://ballerina.io/downloads/).
* A code editor (Visual Studio Code is preferred with [Ballerina extension](https://marketplace.visualstudio.com/items?itemName=WSO2.ballerina))
* An [Apollo Studio](https://studio.apollographql.com/) account
* [Rover CLI](https://www.apollographql.com/docs/rover)
Before diving into the code, it's worth noting that this section provides a high-level overview of the subgraph implementations. Detailed code explanations are omitted to maintain focus on the key concepts of GraphQL federation. For in-depth Ballerina GraphQL implementation, refer to the provided resources.
### Resources for Ballerina GraphQL Implementation
For a comprehensive understanding of Ballerina GraphQL implementation, explore these resources:
* [Ballerina GraphQL Specification](https://ballerina.io/spec/graphql)
* [Ballerina GraphQL API Docs](https://central.ballerina.io/ballerina/graphql/latest)
* [Ballerina by Examples](https://ballerina.io/learn/by-example/#graphql-service)
Now, let's proceed with creating the subgraphs without the federation-specific features. We'll add federation-specific functionality later in this article series.
### Products Subgraph
#### Schema for the Products Subgraph
We begin by defining the GraphQL schema for the Products Subgraph, which includes two query fields.
```graphql
type Query {
products: [Product!]!
product(id: ID!): Product
}
type Product {
id: ID!
name: String!
description: String!
price: Float!
}
```
To create the Products Subgraph project, use the following Ballerina command:
```shell
bal new products_subgraph -t service
```
This command initializes a new Ballerina project under the products_subgraph directory.
#### Data Source for the Products Subgraph
Most GraphQL services have their own data sources. In this example, we use an in-memory Ballerina table as the data source, but this can be easily replaced with a database. To make the data source replaceable, we implement it as a separate Ballerina module.
To add the data source module, navigate to the root directory of the Products subgraph repository and execute this command:
```shell
bal add datasource
```
This command creates a new datasource directory under the modules directory. Inside this directory, add the following code:
##### Types Used in Products Data Source
Define a single type, Product, used in the data source:
```ballerina
type Product readonly & record {|
string id;
string name;
string description;
float price;
|};
```
##### Products Data Source API
Implement the data source API, which provides access to the product data:
```ballerina
public isolated function getProducts() returns readonly & Product[] {
lock {
return from Product product in products select product;
}
}
public isolated function getProduct(string id) returns Product? {
lock {
return products[id];
}
}
```
##### Sample Product Data
Define a sample data set for the Product type:
```ballerina
isolated table<Product> key(id) products = table [
{id: "product_0", name: "Shoes", description: "A pair of shoes", price: 100},
{id: "product_1", name: "T-shirt", description: "A t-shirt", price: 10},
{id: "product_2", name: "Pants", description: "A pair of pants", price: 50}
];
```
#### GraphQL Service for Products Subgraph
Now, let's create the main GraphQL service for the Products Subgraph. Below is the initial code for this subgraph service:
```ballerina
import product_subgraph.datasource;
import ballerina/graphql;
service graphql:Service on new graphql:Listener(9091) {
resource function get products() returns Product[] => datasource:getProducts();
resource function get product(@graphql:ID string id) returns Product? =>
datasource:getProduct(id);
}
```
##### Types of the Products Subgraph
The next step is to define the types required for the GraphQL service of the Products Subgraph. In this case, we have a single type, Product:
```ballerina
import ballerina/graphql;
public type Product record {|
@graphql:ID string id;
string name;
string description;
float price;
|};
```
For the detailed implementation of this subgraph, refer to the [Products Subgraph repository](https://github.com/ThisaruGuruge/ballerina-graphql-federation-products-subgraph/tree/initial-state).
### Users Subgraph
The Users Subgraph follows a similar structure as the Products Subgraph. Here, we'll define the schema, data source, GraphQL service, and types for the Users Subgraph.
#### Schema for the Users Subgraph
Define the GraphQL schema for the Users Subgraph, which includes a single query field:
```graphql
type Query {
users: [User!]!
}
type User {
id: ID!
name: String!
email: String!
}
```
To create the Users Subgraph project, follow the same steps as the Products Subgraph and execute this command:
```shell
bal new users_subgraph -t service
```
#### Data Source for the Users Subgraph
Create a data source module for the Users Subgraph, similar to the Products Subgraph, with types, data source API, and sample user data.
##### Types Used in Users Data Source
Define the User type for the data source:
```ballerina
public type User record {|
string id;
string name;
string email;
|};
```
#### Users Data Source API
Implement the data source API for accessing user data:
```ballerina
public isolated function getUsers() returns readonly & User[] {
lock {
return from User user in users select user;
}
}
```
#### Sample User Data
Define a sample data set for the User type:
```ballerina
isolated table<User> key(id) users = table [
{id: "user_0", name: "Alice", email: "alice@sample.com"},
{id: "user_1", name: "Bob", email: "bob@sample.com"},
{id: "user_2", name: "Charlie", email: "charlie@sample.com"},
{id: "user_3", name: "Dave", email: "dave@sample.com"},
{id: "user_4", name: "Eve", email: "eve@sample.com"}
];
```
#### GraphQL Service for Users Subgraph
Create the GraphQL service for the Users Subgraph:
```ballerina
import user_subgraph.datasource;
import ballerina/graphql;
service graphql:Service on new graphql:Listener(9092) {
resource function get users() returns User[] => datasource:getUsers();
}
```
#### Types of the Users Subgraph
Define the GraphQL types for the Users Subgraph, including the User type:
```ballerina
import ballerina/graphql;
public type User record {|
@graphql:ID string id;
string name;
string email;
|};
```
The Users Subgraph implementation details can be found in the [Users Subgraph repository](https://github.com/ThisaruGuruge/ballerina-graphql-federation-users-subgraph/tree/initial-state).
### Reviews Subgraph
The Reviews Subgraph follows a similar structure as the previous subgraphs. Here, we'll define the schema, data source, GraphQL service, and types for the Reviews Subgraph.
#### Schema for the Reviews Subgraph
Define the GraphQL schema for the Reviews Subgraph, which includes queries and a mutation for adding reviews:
```ballerina
type Query {
reviews: [Review!]!
}
type Review {
id: ID!
title: String!
comment: String!
rating: Int!
}
type Mutation {
addReview(input: ReviewInput!): Review!
}
input ReviewInput {
title: String!
comment: String!
rating: Int!
authorId: String!
productId: String!
}
```
> **Note:** The product and the author fields of the Review type are not added here. Those fields will be added in a later section of this article series.
To create the Reviews Subgraph project, follow the same steps as the previous subgraphs and execute this command:
```shell
bal new reviews_subgraph -t service
```
#### Data Source for the Reviews Subgraph
Create a data source module for the Reviews Subgraph, similar to the previous subgraphs, with types, data source API, and sample review data.
##### Types Used in Reviews Data Source
Define two types of the data source: Review and ReviewInput:
```ballerina
type Review record {|
readonly string id;
string title;
string comment;
int rating;
string authorId;
string productId;
|};
type ReviewInput record {|
string title;
string comment;
int rating;
string authorId;
string productId;
|};
```
#### Reviews Data Source API
Implement the data source API for accessing review data and adding new reviews:
```ballerina
public isolated function getReviews() returns readonly & Review[] {
lock {
return from Review review in reviews select review;
}
}
public isolated function addReview(ReviewInput input) returns Review {
lock {
string nextId = string `review-${reviews.length()}`;
Review review = {
id: nextId,
...input
};
reviews.add(review);
return review;
}
}
```
#### Sample Review Data
Define a sample data set for the Review type:
```ballerina
isolated table<Review> key(id) reviews = table [
{id: "review_0", title: "Great!", comment: "Value for money", rating: 4, productId: "product_1", authorId: "user_1"},
{id: "review_1", title: "Good", comment: "Fast delivery", rating: 3, productId: "product_1", authorId: "user_2"},
{id: "review_2", title: "Bad", comment: "Not as described", rating: 1, productId: "product_2", authorId: "user_3"},
{id: "review_3", title: "Great!", comment: "Value for money", rating: 4, productId: "product_2", authorId: "user_1"}
];
```
#### GraphQL Service for Reviews Subgraph
Create the GraphQL service for the Reviews Subgraph, including query and mutation operations:
```ballerina
import review_subgraph.datasource;
import ballerina/graphql;
service graphql:Service on new graphql:Listener(9093) {
resource function get reviews() returns Review[] {
return from ReviewInfo reviewInfo in datasource:getReviews()
select new (reviewInfo);
}
remote function addReview(ReviewInput input) returns Review {
ReviewInfo result = datasource:addReview(input);
return new (result);
}
}
```
#### Types of the Reviews Subgraph
Define the GraphQL types for the Reviews Subgraph, including the Review type and ReviewInput input type:
```ballerina
import ballerina/constraint;
import ballerina/graphql;
public isolated service class Review {
private final readonly & ReviewInfo reviewInfo;
isolated function init(ReviewInfo reviewInformation) {
self.reviewInfo = reviewInformation.cloneReadOnly();
}
isolated resource function get id() returns @graphql:ID string => self.reviewInfo.id;
isolated resource function get title() returns string => self.reviewInfo.title;
isolated resource function get comment() returns string => self.reviewInfo.comment;
isolated resource function get rating() returns int => self.reviewInfo.rating;
}
type ReviewInfo record {|
string id;
string title;
string comment;
int rating;
string authorId;
string productId;
|};
public type ReviewInput readonly & record {|
string title;
string comment;
@constraint:Int {
minValue: 0,
maxValue: 5
}
int rating;
string authorId;
string productId;
|};
```
> **Note:** The Review type is defined using a Ballerina service type here. Although it could be defined using a record type, the service type is chosen because certain federation-specific features (which will be discussed later in this article series) require this type to be defined as a service type.
For a detailed implementation of this subgraph, refer to the [Reviews Subgraph repository](https://github.com/ThisaruGuruge/ballerina-graphql-federation-reviews-subgraph/tree/initial-state).
With these subgraphs implemented, you have laid the foundation for your federated GraphQL API. In the next sections, we will enhance these subgraphs with federation-specific features to build the supergraph.
## Publish Subgraphs
Now that we have our initial implementation complete, we can publish them. To publish the subgraphs we can use the [Rover CLI](https://www.apollographql.com/docs/rover/) from Apollo.
### Publishing to Apollo Studio
To publish the subgraphs to Apollo Studio, first, create an account on Apollo Studio and create a new Graph. Refer to [Apollo documentation](https://www.apollographql.com/docs/graphos/) for more information about creating new graphs and publishing them. When you create a new Graph, a pop-up shows up with an `APOLLO_KEY`, and `APOLLO_GRAPH_REF`. Copy these values and save them in a `.env` file.
```toml
APOLLO_KEY=<Your Apollo Key>
APOLLO_GRAPH_REF=<Your Apollo Graph Ref>
```
First, we need to configure the Rover CLI to connect with our Graph in the Apollo Studio. Execute the following command to configure the Rover CLI.
```shell
rover config auth
```
This will prompt you to enter the Apollo key. Copy and paste the `APOLLO_KEY` obtained above here.
> **Note:** Make sure to copy and paste the complete key, which starts from `service:`.
If the key is applied successfully, the following message will be printed on the stdout:
```plaintext
Successfully saved API key.
```
Once the key is successfully set, we can publish the subgraph.
To publish the subgraph we need the GraphQL schema of the subgraph. To get the subgraph, we can use the [`bal graphql` CLI tool](https://ballerina.io/learn/graphql-tool/#schema-generation). Execute the following command inside the Products subgraph repo:
```shell
bal graphql -i service.bal
```
This will generate the GraphQL schema for the subgraph and save it in a file named `schema_service.graphql`. Once the schema is created, you can publish the subgraph to Apollo Studio. For testing purposes, we can use the locally running subgraph for this. Execute the following command in the root of the Products subgraph repository:
```shell
bal run
```
This will run the GraphQL service locally. Now that we have a running instance of the subgraph, we can publish it to the Apollo studio using Rover CLI. You need the `APOLLO_GRAPH_REF` obtained above for this step. Execute the following command to publish the subgraph:
```shell
rover subgraph publish <APOLLO_GRAPH_REF> \
-name Products \
-schema ./schema_service.graphql \
-routing-url http://localhost:9091
```
Repeat the same steps for the other two subgraphs to publish them to Apollo Studio.
> **Note:** You do not need to configure the Rover CLI every time. When publishing just change the subgraph name, schema file, and the url accordingly.
Once all the subgraphs are published, we can visit the Apollo Studio and check our schema. Following is a sample GraphQL API schema generated in the Apollo Studio:
```graphql
type Mutation {
addReview(input: ReviewInput!): Review!
}
type Product {
id: ID!
name: String!
description: String!
price: Float!
}
type Query {
products: [Product!]!
product(id: ID!): Product
reviews: [Review!]!
users: [User!]!
}
type Review {
id: ID!
title: String!
comment: String!
rating: Int!
}
input ReviewInput {
title: String!
comment: String!
rating: Int!
authorId: String!
productId: String!
}
type User {
id: ID!
name: String!
email: String!
}
```
In addition to this schema, there will be another schema generated from the Apollo Studio, which is our supergraph schema. Following is the supergraph schema generated from the subgraphs we published above:
```graphql
schema
@link(url: "https://specs.apollo.dev/link/v1.0")
@link(url: "https://specs.apollo.dev/join/v0.3", for: EXECUTION)
{
query: Query
mutation: Mutation
}
directive @join__enumValue(graph: join__Graph!) repeatable on ENUM_VALUE
directive @join__field(graph: join__Graph, requires: join__FieldSet, provides: join__FieldSet, type: String, external: Boolean, override: String, usedOverridden: Boolean) repeatable on FIELD_DEFINITION | INPUT_FIELD_DEFINITION
directive @join__graph(name: String!, url: String!) on ENUM_VALUE
directive @join__implements(graph: join__Graph!, interface: String!) repeatable on OBJECT | INTERFACE
directive @join__type(graph: join__Graph!, key: join__FieldSet, extension: Boolean! = false, resolvable: Boolean! = true, isInterfaceObject: Boolean! = false) repeatable on OBJECT | INTERFACE | UNION | ENUM | INPUT_OBJECT | SCALAR
directive @join__unionMember(graph: join__Graph!, member: String!) repeatable on UNION
directive @link(url: String, as: String, for: link__Purpose, import: [link__Import]) repeatable on SCHEMA
scalar join__FieldSet
enum join__Graph {
PRODUCTS @join__graph(name: "Products", url: "http://localhost:9091")
REVIEWS @join__graph(name: "Reviews", url: "http://localhost:9093")
USERS @join__graph(name: "Users", url: "http://localhost:9092")
}
scalar link__Import
enum link__Purpose {
"""
`SECURITY` features provide metadata necessary to securely resolve fields.
"""
SECURITY
"""
`EXECUTION` features provide metadata necessary for operation execution.
"""
EXECUTION
}
type Mutation
@join__type(graph: REVIEWS)
{
addReview(input: ReviewInput!): Review!
}
type Product
@join__type(graph: PRODUCTS)
{
id: ID!
name: String!
description: String!
price: Float!
}
type Query
@join__type(graph: PRODUCTS)
@join__type(graph: REVIEWS)
@join__type(graph: USERS)
{
products: [Product!]! @join__field(graph: PRODUCTS)
product(id: ID!): Product @join__field(graph: PRODUCTS)
reviews: [Review!]! @join__field(graph: REVIEWS)
users: [User!]! @join__field(graph: USERS)
}
type Review
@join__type(graph: REVIEWS)
{
id: ID!
title: String!
comment: String!
rating: Int!
}
input ReviewInput
@join__type(graph: REVIEWS)
{
title: String!
comment: String!
rating: Int!
authorId: String!
productId: String!
}
type User
@join__type(graph: USERS)
{
id: ID!
name: String!
email: String!
}
```
As you can see, the Apollo Studio already has composed a supergraph schema from the subgraphs you published. Now that we have the supergraph ready, we can use the Apollo Router as the access point of our supergraph.
> **Note:** You can compose your supergraph schema locally using the Rover CLI. Refer to [Apollo documentation](https://www.apollographql.com/docs/rover/supergraphs/#composing-a-supergraph-schema) for more information.
### Configure Apollo Router
Create a new directory and download the [Apollo Router](https://www.apollographql.com/docs/router/quickstart/#1-download-and-extract-the-apollo-router-binary).
> **Note:** This article series shows how to implement federated GraphQL API using a self-hosted Apollo router. To use the self-hosted Apollo router, you need an Apollo enterprise plan.
Then create a separate file named router.yaml file. This is used to configure the Apollo Router. Following is a sample configuration file:
```yaml
sandbox:
enabled: true
homepage:
enabled: false
supergraph:
introspection: true
include_subgraph_errors:
all: true # Propagate errors from all subgraphs
cors:
origins:
- http://localhost:4000
- https://studio.apollographql.com
```
Refer to the [Apollo Router documentation](https://www.apollographql.com/docs/router/configuration/overview/) for more information about configuring the router.
Now we can run the router. You need the `APOLLO_KEY` and the `APOLLO_GRAPH_REF`. Execute the following command to run the Apollo Router:
```shell
APOLLO_KEY=<Your Apollo Key> APOLLO_GRAPH_REF=<Your Apollo Graph Ref> ./router - config router.yaml
```
Once the router is up and running, it will print the router link on the stdout (the default value is <http://localhost:4000>), so that you can try out your federated supergraph. When you access the link using a browser, it will start an Apollo Sandbox instance. (This is configured using the router.yaml file mentioned above).
Now use the following GraphQL document to test your federated GraphQL API:
```graphql
query ExampleQuery {
products {
id
name
}
reviews {
id
rating
}
users {
id
name
}
}
```
This will return the following response if everything is running correctly.
```json
{
"data": {
"products": [
{
"id": "product_0",
"name": "Shoes"
},
{
"id": "product_1",
"name": "T-shirt"
},
{
"id": "product_2",
"name": "Pants"
}
],
"reviews": [
{
"id": "review_0",
"rating": 4
},
{
"id": "review_1",
"rating": 3
},
{
"id": "review_2",
"rating": 1
},
{
"id": "review_3",
"rating": 4
}
],
"users": [
{
"id": "1",
"name": "Alice"
},
{
"id": "2",
"name": "Bob"
},
{
"id": "3",
"name": "Charlie"
},
{
"id": "4",
"name": "Dave"
},
{
"id": "5",
"name": "Eve"
}
]
}
}
```
Congratulations! Now you have a working federated supergraph. Let's check how to add Entity types to this federated supergraph in the next part of this article series.
Continue reading on [Part II](https://dev.to/thisarug/graphql-federation-with-ballerina-and-apollo-part-ii-a0g) of this article series.
> Ballerina is an open-source project. We welcome any kind of contributions to the Ballerina platform, including starring on GitHub.
| thisarug |
1,916,807 | Advanced German Techniques for Using Social Media For Recruitment | In Germany, companies are increasingly leveraging digital tools to transform their recruitment... | 0 | 2024-07-09T06:06:12 | https://www.tech-careers.de/advanced-german-techniques-for-using-social-media-for-recruitment/ | techjobsingermany | ---
title: Advanced German Techniques for Using Social Media For Recruitment
published: true
date: 2024-07-01 14:23:52 UTC
tags: TechJobsinGermany
canonical_url: https://www.tech-careers.de/advanced-german-techniques-for-using-social-media-for-recruitment/
---
In Germany, companies are increasingly leveraging digital tools to transform their recruitment processes, reflecting broader global trends in human resources technology. This digital shift is driven by the need for efficiency, precision in candidate selection, and enhanced candidate experience.
The foundation of this transformation lies in using social media for recruitment, particularly through platforms like LinkedIn and XING. These platforms are essential for sourcing candidates, allowing recruiters to extend their reach widely and target specific skills and professional backgrounds. Incorporating social media into recruitment strategies enables companies to interact with candidates more dynamically and informally, effectively conveying the company’s culture and values.
## Social Media Strategies for Recruitment in Germany
When deploying a social media strategy for recruitment in Germany, it’s crucial to tailor your approach to the specific characteristics of the German market. Social media provides a direct and engaging platform to interact with potential candidates, highlight your company culture, and attract suitable talent. Below are various strategies to improve your recruitment efforts in Germany using social media:
1. **Choose the Right Platforms**
While LinkedIn and XING are the primary professional networking sites used in Germany, don’t overlook other platforms like Facebook, Instagram, and even Twitter. XING is particularly important in the German market for its strong local presence and tailored services for German-speaking professionals.
1. **Develop a Strong Employer Brand**
Use your social media channels to promote a positive image of your workplace. Share content that highlights your company’s values, employee testimonials, workplace events, and milestones. This approach not only attracts talent but also builds your reputation as a desirable employer.
1. **Engage with Content Marketing**
Create and share valuable content that can attract potential candidates. This might include blog posts about industry insights, tips for job seekers, and behind-the-scenes videos of your company. Such content can help position your company as a thought leader and an attractive place to work.
1. **Use Targeted Ads**
Platforms like Facebook and LinkedIn allow for highly targeted advertising based on specific demographics, job titles, skills, and even interests. This can be an efficient way to reach potential candidates who may not be actively searching for a job but are open to the right opportunities.
1. **Encourage Employee Advocacy**
Motivate your employees to share their work experiences and open job positions on their own social media profiles. This not only extends your reach but also adds a layer of trust and authenticity to your messaging. Employees’ networks can be a valuable source of referrals and can attract candidates who are a good cultural fit.
1. **Participate in Relevant Groups and Forums**
Join and engage in social media groups and forums that are relevant to your industry. This helps in networking with potential candidates and increases your visibility among professionals who are interested in staying updated with industry trends and opportunities.
1. **Utilize Video Content**
Videos are highly engaging and can convey your company’s culture and energy more effectively than text. Share videos that showcase your team, office life, employee interviews, and community events. Platforms like Instagram and Facebook are ideal for sharing short video content.
1. **Monitor Your Brand’s Social Media Presence**
Regularly monitor what’s being said about your company on social media. This includes responding to comments, managing any negative feedback, and engaging with users who interact with your content. A responsive and active social media presence helps build a positive employer brand.
1. **Localize Your Social Media Messages**
Ensure that your content resonates with the German audience by localizing the language, references, and nuances. Consider cultural relevance in your posts to increase engagement and appeal to the local job market.
1. **Regular Analytics Review**
Use analytics tools provided by social media platforms to track the effectiveness of your posts and ads. Review these metrics regularly to understand what type of content performs best and refine your strategy accordingly.
By integrating these strategies, companies can effectively utilize social media not only to fill open positions but also to establish a robust employer brand that appeals to high-quality candidates, including those interested in[IT courses in Germany](https://www.tech-careers.de/top-it-courses-in-germany-for-international-students-a-comprehensive-guide/). This approach enhances the attractiveness of companies to skilled professionals in the tech sector.
## Best Social Media Platforms for Recruitment in Germany
In Germany, the social media landscape for recruitment has some nuances compared to a global perspective. Here’s a breakdown of the best platforms for recruiting IT talent in Germany:
**Dominant Platform:**
- **LinkedIn:** Remains the undisputed leader for professional networking in Germany, with over **75 million** users. Its strong search filters and job posting functionalities make it ideal for reaching a broad base of German IT professionals.
**Targeted Reach:**
- **Xing:** Considered the “German LinkedIn,” Xing boasts a user base specifically focused on the German professional market. Leveraging Xing allows you to target German IT professionals more effectively than broader platforms like Facebook.
**Additional Options:**
- **Facebook:** Still a powerful tool for recruitment in Germany, especially for broader outreach or reaching younger demographics. However, ensure your targeting is precise to avoid overwhelming users with irrelevant job postings.
- **Eventbrite Germany:** If you’re attending or hosting IT industry events in Germany, consider promoting them on Eventbrite Germany to connect with potential candidates interested in the specific field.
By focusing on these platforms and adapting your approach to the German market, you can effectively leverage social media to recruit top IT talent in Germany.
## How to Recruit on LinkedIn
Recruiting on LinkedIn in Germany can be highly effective, leveraging the platform’s vast network of professionals and its recruitment-specific tools. Here are some strategies on how to use social media for recruitment, specifically optimizing your LinkedIn recruitment efforts in Germany:
1. **Create a Strong Company Profile**
Ensure your company’s LinkedIn page is comprehensive and engaging. It should clearly communicate your company culture, values, and the benefits of working there. Use high-quality images, post regular updates, and highlight achievements to attract potential candidates.
1. **Utilize LinkedIn Jobs**
Post job openings directly on LinkedIn Jobs. This feature allows you to reach both active job seekers and passive candidates who might not be actively looking but are open to opportunities. You can specify job details, required skills, and even preferred experiences to attract the right candidates.
1. **Leverage Advanced Search Filters**
Use LinkedIn’s advanced search filters to identify candidates who fit the skills and experience required for your roles. You can filter by location, current company, past company, industry, and more. This makes it easier to target professionals in specific sectors or those who have worked for competitors or industry leaders.
1. **Engage with Potential Candidates**
Don’t just send out cold connection requests or messages. Engage with potential candidates by commenting on their posts, sharing relevant content, and participating in discussions. This builds a relationship and keeps your company top of mind.
1. **Use LinkedIn Recruiter**
LinkedIn Recruiter is a premium tool that provides additional features for finding, connecting with, and managing candidates. It offers more powerful search capabilities, more InMail messages, and detailed insights into candidates. It’s especially useful for reaching passive candidates and managing large-scale recruitment campaigns.
1. **Promote Employee Testimonials**
Encourage your current employees, especially those in Germany, to share their positive experiences and testimonials. Prospective candidates often look at employee testimonials to gauge the company culture and the authenticity of its work environment.
1. **Targeted LinkedIn Ads**
Utilize LinkedIn’s targeted advertising to reach a broader or more specific audience. You can create ads tailored to the job role and target them based on user profiles, skills, job titles, and even interests, ensuring your vacancies are seen by the most relevant candidates.
1. **Join and Participate in Groups**
LinkedIn groups can be a good source of industry-specific candidates. Join groups related to your industry or professional groups in Germany and participate actively. This not only increases your visibility but also helps you understand current industry trends and needs.
1. **Regularly Update and Optimize Job Posts**
Regularly review and update your job postings to ensure they are engaging and reflective of the role’s current needs. Use keywords that potential candidates might use to search for job opportunities.
1. **Follow Up**
After initial contact, keep potential candidates engaged with follow-up messages or updates about the hiring process. This keeps candidates interested and can improve the candidate experience significantly.
By employing these strategies specifically designed for the German market, companies can effectively use LinkedIn not only to fill current openings but also to build a talent pipeline of qualified candidates for future requirements. This approach exemplifies [how to build a talent pipeline](https://docs.google.com/document/d/1X2vHgQ07AzvUSl_v4IpdKfByNyeX-ym1Gl9c5g4Dsac/edit#How%20to%20Build%20a%20Talent%20Pipeline:%20Tips,%20Tricks,%20and%20Techniques) strategically and efficiently.
The post [Advanced German Techniques for Using Social Media For Recruitment](https://www.tech-careers.de/advanced-german-techniques-for-using-social-media-for-recruitment/) appeared first on [Tech-careers.de](https://www.tech-careers.de). | nadin |
1,916,808 | Solo Adventures: 6 Simple Pleasures of Travel | The liberty to travel to any destination of your choice at any time of your choice. When in a... | 0 | 2024-07-09T06:05:57 | https://dev.to/jackbruno01/solo-adventures-6-simple-pleasures-of-travel-32o6 |
1. The liberty to travel to any destination of your choice at any time of your choice.
When in a group, you find yourself always bowing to the group’s decision and do what they want to do. At times, due to politeness or simply to avoid an argument, we accept to do things with the person we are traveling with that we would not have done or would have done differently.
When [Solo travel](https://travelguru.one/why-its-crucial-to-travel-in-order-to-get-life-experiences/), one is not bound by any restrictions and can go and perform any activity that he or she desires. Do you fancy to spend your night drinking wine and eating cheese at 3 in the morning in Paris? Go for it. Interested in a one week hiking in Nepal?
Do it! You were disappointed with the looks of Venice? See somewhere else! You control the plot of your adventure…Oh, and did I mention that you can join the beds in your hotel room and make one large sleeping hole, and the bar fridge is yours, all yours!
2. You will find out just how much of a ‘tough cookie’ you are.
If you don’t have a fairy godmother of [Traveling](https://travelguru.one/traveling-its-value-and-advantages-for-human-life/), something will likely go wrong at some point. This will make you feel stressed out, lonely and at times, helpless.
But you will pull through it. You will find out just how strong you are when you are the one to sort out your issues and you will be very proud that you are so independent. It is a bitter pill to swallow but once you are able to rely on yourself to get through it, then you are sure that you can handle everything.
3. New friends!
While [Traveling with friends](https://travelguru.one/why-your-vacation-ought-not-be-the-main-outing-with-your-accomplice/) you tend to hang out with them and interact with only them but when you are traveling alone you get to interact with so many people! Do not be shy to greet.
I always wonder how much one can discover about various cultures and the details of locations if one simply asks the people. Besides, you will have a reason to come back and see your newly found friends!
4. Your secrets are safe.
If you are going to run away from something, to find yourself, or just to travel, it is great to be alone because all your memories and secrets are completely secure. You can handle your emotions and ideas in whichever way you prefer and there is no one to scold or give you unsolicited advice.
There is also a certain charm in writing your own story that cannot be experienced when you follow the beaten path. You can dance on the streets, contemplate on mountains, even trip on the stairs of the Eiffel Tower and nobody will be there to tell you how mortifying it was at your next birthday. They become your memories that you can tell to someone if you want or keep them to yourself for the rest of your life.
The [Benefits of traveling](https://travelguru.one/ten-advantages-of-traveling-you-should-know/) encompass broadening perspectives, fostering personal growth, promoting cultural understanding.
5. You will find that you begin to like yourself.
It is at times boring and lonely to spend a lot of time alone but it is a good way to gather experiences on your own as it makes you more self-aware and independent. You will be able to understand other people and their cultures better and thus be more in touch with yourself and your identity.
You will have the time and the opportunity to listen to yourself and your ideas, and be able to do something about it. When you are alone most of the time, you come to understand why other people are so interested in you and what you find appealing in yourself.
6. Home feels like home again.
Whether you are in a foreign country or in a different state, there is always a comfort in going home. Especially when you have been traveling alone, coming back to people and things you know is rather comforting.
You get to tell people stories of your escapades while enjoying the luxuries of the place that has become your home. Still, there is no better feeling than the one when you are wrapped in your own blanket and lying in your own bed. | jackbruno01 | |
1,916,809 | Discover the Perfect Engagement Ring at House of Diamonds | At House of Diamonds, we understand that choosing an engagement ring is a deeply personal and... | 0 | 2024-07-09T06:06:06 | https://dev.to/houseofdiamonds/discover-the-perfect-engagement-ring-at-house-of-diamonds-4lh0 | At House of Diamonds, we understand that choosing an engagement ring is a deeply personal and meaningful decision. Our mission is to help you find the perfect ring that embodies your love story. With a variety of exquisite styles to choose from, we ensure there's something for every taste and preference. Let’s explore the stunning options available at House of Diamonds:
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1,916,815 | The Impact of a Meme Coin Development Company | Meme coins have become a popular trend in the cryptocurrency world, capturing the imagination of... | 0 | 2024-07-09T06:13:46 | https://dev.to/kala12/the-impact-of-a-meme-coin-development-company-1256 | Meme coins have become a popular trend in the cryptocurrency world, capturing the imagination of investors and internet users. Behind these coins are development companies that bring them to life. We explore ten ways in which a company developing meme coin can influence the market and its participants.
**Market Impact
**A successful meme coin development company can have a significant impact on the cryptocurrency market. By creating coins that attract public interest, they can drive market trends and create waves of investment. This effect is often seen when a new meme coin rapidly increases in value, gaining attention in the mainstream media and attracting more investors.
**Community Engagement
**Companies developing meme-coins often build strong communities around their coins. They interact with users through social media, forums and events that foster a sense of togetherness and excitement. Such active community engagement can increase loyalty and support for a coin, increasing its popularity and market value.
**Marketing Innovations
**These companies are known for their innovative marketing strategies. By leveraging memes, viral content and influencer partnerships, they can generate curiosity and appeal to a wide audience. Their creative marketing styles often set new standards in the industry and influence how other cryptocurrencies promote themselves.
**Financial Opportunities
**For investors, meme coins can offer profitable opportunities. A coin development company can create coins with high profit potential, albeit high risk. Early investors in successful native coins can make significant profits, making these coins an attractive option for those who want to play.
**Technological Advances
**Despite their playfulness, meme coin development companies often participate in technological advances in the blockchain space. They can experiment with new technologies, smart contracts and decentralized applications, pushing the boundaries of what is possible in cryptocurrency.
**Educational Activities
**Memecoin development companies engage with a wide audience and help educate the public about cryptocurrencies and blockchain technology. They simplify complex concepts with memes and easy-to-understand content, making the crypto world accessible to newcomers.
**Economic Impact
**The success of meme-coins can have a wider economic impact. It can create jobs for the development company and its affiliates, from marketing and social media management to software development. Additionally, the wealth created by successful meme-coins can flow into other sectors of the economy.
**Regulatory Challenges
**As meme-coins grow in popularity, they are also attracting the attention of regulators. Money development companies often navigate complex legal landscapes and influence the shape of future regulations. Their experiences can provide valuable information to policy makers and help create clearer guidelines for the cryptocurrency industry.
**Risk Awareness
**The volatility and speculative nature of cryptocurrency emphasizes the importance of risk awareness. Development companies often educate their communities about the risks involved in investing in meme coins and promote responsible investing. This can help reduce potential financial loss for investors.
**Cultural Impact
**Memecoins are more than just a financial asset; they are cultural phenomena. Developers tap into internet culture and create coins that resonate with memes, jokes and trends. This cultural influence extends beyond the crypto community and affects popular culture and how people experience cryptocurrencies.
**Conclusion
**Meme coin development companies play an important role in shaping the world of cryptocurrency. Their influence ranges from market trends and community involvement to technological developments and regulatory considerations. Although there are risks involved in investing in meme coins, the potential benefits and cultural impact make them an exciting addition to the modern financial world. As these companies continue.
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1,916,816 | Setting Up Billing Budgets and Alarms on AWS | Title: Mastering Cost Control: Setting Up Billing Budgets and Alarms on AWS ** Introduction:** In the... | 0 | 2024-07-09T06:15:50 | https://dev.to/jeyaprakash/setting-up-billing-budgets-and-alarms-on-aws-1cad | **Title**: Mastering Cost Control: Setting Up Billing Budgets and Alarms on AWS
**
Introduction:**
In the dynamic world of cloud computing, managing costs effectively is crucial. AWS offers powerful tools like billing budgets and alarms through AWS Budgets and AWS CloudWatch, enabling businesses to monitor expenses and avoid surprises. This guide will walk you through the process of setting up these tools step-by-step, ensuring you can keep your AWS spending in check with confidence.
**1. Understanding AWS Billing Basics:**
Before diving into budgets and alarms, it's essential to grasp how AWS bills you. AWS charges are based on usage of services like EC2 instances, S3 storage, data transfer, and more, often calculated hourly or based on consumption. The AWS Billing Dashboard provides a clear overview of your current spending, which is where your journey to effective cost management begins.
**2. Setting Up AWS Budgets**:
AWS Budgets are your first line of defense against unexpected charges. They allow you to set custom cost and usage budgets tailored to your needs. Here’s how to get started:
Accessing AWS Budgets: Navigate to the AWS Management Console and locate AWS Budgets under the Billing & Cost Management section.
Creating Your Budget: Choose between cost or usage budgets based on your preference and configure the desired thresholds.
Setting Alerts: Define alert notifications via email or Amazon SNS (Simple Notification Service) to keep key stakeholders informed when budget thresholds are approaching or exceeded.
**3. Configuring Billing Alarms with AWS CloudWatch:**
AWS CloudWatch is your go-to tool for monitoring AWS resources and applications, including billing metrics. Setting up billing alarms ensures you’re promptly notified when spending exceeds predefined thresholds:
Creating CloudWatch Alarms: Navigate to the CloudWatch console, select Billing metrics, and create alarms based on metrics like estimated charges.
Defining Alarm Actions: Specify actions to trigger when alarms are activated, such as sending notifications via SNS or executing automated responses using AWS Lambda.
**4. Best Practices for Effective Cost Management:**
To optimize your AWS spending further, consider implementing these best practices:
Resource Tagging: Tag resources with meaningful metadata to track and allocate costs accurately.
Utilize AWS Cost Explorer: Dive deeper into your spending patterns with AWS Cost Explorer for insightful analytics and forecasting.
AWS Trusted Advisor: Leverage AWS Trusted Advisor for personalized cost optimization recommendations based on your usage patterns.
**5. Monitoring and Adjusting Your Budgets and Alarms:**
Cost management is an ongoing process. Regularly monitor your budgets and alarms to ensure they align with your evolving business needs:
Review and Refine: Periodically review budget thresholds and alarm configurations to ensure they remain effective.
Adjust as Needed: Make adjustments to budgets and alarms based on changes in workload, business priorities, or seasonal variations.
**6. Real-World Applications and Case Studies:**
Explore hypothetical or real-world scenarios where effective budgeting and alarm setup have helped organizations maintain control over their AWS costs, illustrating the practical benefits of these tools in action.
**7. Conclusion:**
Mastering AWS cost control through effective budgeting and alarm setup is not just about saving money—it's about ensuring predictability and stability in your cloud operations. By following the steps outlined in this guide, you’ll be equipped to proactively manage your AWS spending and make informed decisions that support your business goals. | jeyaprakash | |
1,916,817 | How Barrier Systems are Revolutionizing Traffic Management | The report "Barrier Systems Market by Material (Concrete, Wood, Metal, Plastics), Application... | 0 | 2024-07-09T06:17:07 | https://dev.to/aryanbo91040102/how-barrier-systems-are-revolutionizing-traffic-management-2nd1 | news | The report "Barrier Systems Market by Material (Concrete, Wood, Metal, Plastics), Application (Roadways, Railways, Commercial, Residential), Type (Bollards, Fences, Crash Barriers Systems, Crash Barrier Devices, Drop Arms), Function, & Region - Global Forecast to 2028", size is estimated to be USD 21.1 billion in 2023, and it is projected to reach USD 25.5 billion by 2028 at a CAGR of 3.8%.
Browse in-depth TOC on "Barrier Systems Market"
160 – Tables
48 – Figures
300 – Pages
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Barrier Systems Market Key Players
The barrier systems chemicals market comprises major players such Tata Steel Limited (India), Bekaert (Belgium), Valtir, LLC. (U.S.), Lindsay Corporation (U.S.), Valmont Industries Inc. (U.S.), Hill & Smith Plc (US), Nucor Steel Marion, Inc. (US), Ameristar Perimeter Security (US), A-Safe (UK), Delta Scientific Corporation (US). Expansions, acquisitions, joint ventures, and new product developments are some of the major strategies adopted by these key players to enhance their positions in the barrier systems market.
Bekaert (Belgium) is a global company in the field of advanced steel wire products and solutions. The company is engaged in offering innovative steel wire products such as wires for reinforcement, steel cords for tires, fencing solutions, steel fibers for concrete reinforcement, and other specialty wires. Apart from this, the company also provides coating solutions, tire reinforcement solutions, and concrete reinforcement solutions. Bekaert has a widespread international presence with manufacturing plants, sales offices, and research centers in over 30 countries.
By Material, metal accounted for the largest share in 2022
Metal safety barriers are known for their reliability and durability. They can be easily repaired, in case of damage due to collision, thus increasing their life. The most commonly used metals for safety barriers include steel, iron, and aluminum. Steel is mainly used in the manufacturing of bollards and guardrails. Iron is the most widely used metal in safety barrier systems. Gates, fences, roadway crash barriers, bollards, and drop arms are all made of iron. The demand for metal safety barrier systems is driven by the ongoing need for new construction, urbanization, infrastructure development, and renovation projects.
By Function, Passive barrier accounted for the largest share in 2022
Passive barrier systems do not have movable parts. The main function of these barriers is to alert those around barriers and provide information about when movement is safe. The effectiveness of passive barriers relies on their ability to absorb energy and transmit the same to the foundation. Some of the most commonly used passive barriers are fences, concrete walls, and bollards. Fences can sometimes prove ineffective against speeding vehicles. In such cases, concrete walls can be used.
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By Application, Roadways accounted for the largest share in 2022
Roadways are the largest application of barrier systems. Various types of barriers such as bollards, guardrails, and beam barriers are used on roadways. On roadways, barrier systems are installed in order to absorb energy from the striking vehicle and redirect it along the line of the barrier, so that it does not turn over and re-enter the stream of moving traffic. Manufacturers are coming up with innovative roadway safety barrier systems such as end terminals and crash cushions, which minimize the seriousness of the impact and the resulting injuries. However, growing concern towards safety, stringent traffic regulations, and government initiatives are the possible factors that help to support the growth of the barrier systems market in the forecast period.
By Type, Crash barrier systems accounted for the largest share in 2022.
Crash barriers are protection systems on roadways that safeguard vehicles as well as construction workers from roadside hazards. Crash barrier systems have been mandated in almost all parts of the world in order to avoid road crash injuries and fatal accidents. The major applications of crash barrier systems are roadside barriers, median barriers, bridge barriers, and work zone barriers. Growth in the construction, as well as automotive industries across the world, has played a major role in providing the necessary momentum to the crash barrier systems market, which ultimately helps in supporting the growth of barrier systems in the forecast period.
Asia Pacific accounted for the largest share as well as the fastest-growing market for the barrier systems market in 2022
Asia Pacific accounts for the largest share in 2022, in this market. This is attributed to rapid urbanization and infrastructure development, including the construction of bridges, tunnels, roadways, highways, etc. This drives the demand for barrier systems across several application segments such as roadways, and railways. The Asia Pacific region witnessed an increasing number of vehicle ownership which also led to the demand for barrier systems.
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TABLE OF CONTENTS
1 INTRODUCTION (Page No. - 27)
1.1 STUDY OBJECTIVES
1.2 MARKET DEFINITION
1.2.1 INCLUSIONS AND EXCLUSIONS
1.3 MARKET SCOPE
FIGURE 1 BARRIER SYSTEMS MARKET SEGMENTATION
1.3.1 REGIONS COVERED
1.3.2 YEARS CONSIDERED
1.4 CURRENCY CONSIDERED
1.5 UNIT CONSIDERED
1.6 STAKEHOLDERS
1.7 LIMITATIONS
1.8 SUMMARY OF CHANGES
2 RESEARCH METHODOLOGY (Page No. - 31)
2.1 RESEARCH DATA
FIGURE 2 BARRIER SYSTEMS MARKET: RESEARCH DESIGN
2.1.1 SECONDARY DATA
2.1.1.1 Key data from secondary sources
2.1.2 PRIMARY DATA
2.1.2.1 Key data from primary sources
2.1.2.2 Breakdown of primary interviews
FIGURE 3 BREAKDOWN OF PRIMARIES, BY COMPANY TYPE, DESIGNATION, AND REGION
2.2 MARKET SIZE ESTIMATION
FIGURE 4 MARKET SIZE ESTIMATION METHODOLOGY: BOTTOM-UP APPROACH
FIGURE 5 MARKET SIZE ESTIMATION METHODOLOGY: TOP-DOWN APPROACH
2.3 MARKET BREAKDOWN & DATA TRIANGULATION
FIGURE 6 DATA TRIANGULATION
2.4 MARKET SHARE ESTIMATION
2.4.1 RESEARCH ASSUMPTIONS
2.4.2 RESEARCH LIMITATIONS
2.4.3 RECESSION IMPACT
TABLE 1 GDP GROWTH RATE FOR MAJOR REGIONS
3 EXECUTIVE SUMMARY (Page No. - 39)
FIGURE 7 CRASH BARRIER SYSTEMS TO LEAD BARRIER SYSTEMS MARKET DURING FORECAST PERIOD
FIGURE 8 EUROPE LED BARRIER SYSTEMS MARKET IN 2022
4 PREMIUM INSIGHTS (Page No. - 41)
4.1 ATTRACTIVE OPPORTUNITIES FOR PLAYERS IN BARRIER SYSTEMS MARKET
FIGURE 9 EMERGING COUNTRIES TO OFFER ATTRACTIVE OPPORTUNITIES IN BARRIER SYSTEMS MARKET
4.2 EUROPE: BARRIER SYSTEMS MARKET, BY RAW MATERIAL & COUNTRY
FIGURE 10 EUROPE: GERMANY ACCOUNTED FOR LARGEST SHARE OF BARRIER SYSTEMS MARKET IN 2022
4.3 BARRIER SYSTEMS MARKET, BY TYPE
FIGURE 11 CRASH BARRIER SYSTEMS SEGMENT TO LEAD BARRIER SYSTEMS MARKET DURING FORECAST PERIOD
4.4 BARRIER SYSTEMS MARKET, BY APPLICATION
FIGURE 12 COMMERCIAL TO BE FASTEST-GROWING SEGMENT DURING FORECAST PERIOD
4.5 BARRIER SYSTEMS MARKET, BY COUNTRY
FIGURE 13 AUSTRALIA TO RECORD HIGHEST CAGR FROM 2023 TO 2028
5 MARKET OVERVIEW (Page No. - 44)
5.1 INTRODUCTION
5.2 MARKET DYNAMICS
FIGURE 14 BARRIER SYSTEMS MARKET: DRIVERS, RESTRAINTS, OPPORTUNITIES, AND CHALLENGES
5.2.1 DRIVERS
5.2.1.1 Rising spending on infrastructural development
5.2.1.2 Increasing road crash incidences
5.2.1.3 Stringent government regulations and obligations
5.2.2 RESTRAINTS
5.2.2.1 High maintenance and repair costs
5.2.3 OPPORTUNITIES
5.2.3.1 Increasing opportunities in emerging regions
5.2.3.2 Growing construction and automotive industries
TABLE 2 GLOBAL AUTOMOTIVE VEHICLE PRODUCTION, BY REGION, 2019–2021 (MILLION UNIT)
5.2.4 CHALLENGES
Continued... | aryanbo91040102 |
1,916,818 | Innovations in Digital Health: Opportunities and Challenges | Digital transformation in healthcare is creating new opportunities for life sciences companies and... | 0 | 2024-07-09T06:17:26 | https://dev.to/lucyzeniffer/innovations-in-digital-health-opportunities-and-challenges-3di | Digital transformation in healthcare is creating new opportunities for life sciences companies and the industry as a whole. This broad, interdisciplinary notion, known as “digital health” or “digital healthcare,” encompasses the intersection of technology and healthcare.
As a result, healthcare service providers also face challenges, encompassing software, technology, and [healthcare app development services](https://successive.tech/healthcare-app-development/?utm_source=Micro+Blog&utm_medium=dev.to&utm_campaign=SEO+WORK+2) that drive innovation in the healthcare industry.
Healthcare institutions are implementing advanced health approaches, and global corporations are transforming healthcare delivery. Consequently, the patient experience is improved through cloud computing, EHRs, deep learning, AI, and cybersecurity technologies.
## Top Challenges in Healthcare App Development
**1. Data Privacy and Security**
Data is sensitive in healthcare applications. Therefore, it is essential to maintain patient data privacy by ensuring compliance with regulations.
**2. Regulatory Compliance**
Your healthcare app development company must be aware of healthcare regulations across different regions and ensure the application's adherence to these standards.
**3. Integration with Existing Systems**
Integrating new healthcare apps with legacy systems like electronic health records and hospital information systems is often complex and time-consuming.
**4. User Adoption**
Convincing healthcare providers and patients to adopt new technologies and educating them can be challenging.
**5. Interoperability**
Communication and sharing data effectively can be technically challenging for different systems and devices.
**6. Maintaining Data Accuracy**
Ensuring the accuracy and reliability of data collected from various sources is crucial for effective and accurate healthcare delivery.
**7. User Experience Design**
Given the diversity of users, designing intuitive and user-friendly interfaces for healthcare providers and patients can be challenging.
**8. Continuous Updates and Maintenance**
There are many processes that you need to focus on that can be resource-intensive, such as:
- Regularly updating the app to fix bugs
- Improve application features
- Ensuring compatibility with new devices and OS
**9. Clinical Validation**
It is essential to ensure the functionality of healthcare applications must be clinically validated and provide accurate medical value. Therefore, focus on rigorous testing and collaboration with healthcare professionals.
**Also read** [The Ultimate Guide to Healthcare App Development](https://successive.tech/blog/healthcare-app-development-guide/?utm_source=Micro+Blog&utm_medium=dev.to&utm_campaign=SEO+WORK+2)
## Opportunities in Healthcare App Development: Top Use Cases
Telemedicine Services
These applications enable remote consultations and virtual doctor visits. Hence, the need for in-person appointments is reduced.
Electronic Health Records
EHR application streamlines access to patient records. This ensures accurate and up-to-date information is available for better treatment decisions.
Medication Management
The applications that improve patient care episodes by managing tasks such as:
- Providing reminders
- Tracking medication adherence
- Managing prescriptions
Mental Health Support
Delivering therapy sessions, mental health assessments, and resources to support patients dealing with mental health issues.
Appointment Scheduling
Healthcare applications that simplify the process of managing appointments, including:
- Booking
- Rescheduling
- Canceling
Thereby reducing administrative burdens and improving patient convenience.
Health Education and Awareness
Ensuring your audience is aware of the information on health topics helps in improving preventive care and lifestyle choices. At the same time, educate and engage patients.
## Conclusion
With digital healthcare transformation, investors are widely interested in this sector for business opportunities. The potential for digital advancements is immense, but realizing these opportunities depends on how effectively the industry navigates the challenges in its early stages.
If healthcare organizations prioritize enhancing their frameworks and approaches to security, privacy, and confidentiality, a healthcare app development company can continue to deliver scalable solutions for patients and society.
| lucyzeniffer | |
1,916,819 | Understanding Integration Testing: Its Purpose And Automated Implementation | an important stage in the process of creating software, where separate parts of the program are put... | 0 | 2024-07-09T06:17:57 | https://daijiworld.com/news/newsDisplay?newsID=1194453 | integration, testing | 
an important stage in the process of creating software, where separate parts of the program are put together and checked as one unit. This step makes certain that each piece of the software functions well with others, finding any issues or mistakes when these pieces communicate with each other. Integration testing is crucial for checking that complex software systems are reliable, function well and perform correctly. Also, because the use of automation in tests is becoming more common, automated integrated testing has gained popularity as it saves time and effort.
**What is integration testing**?
Integration testing checks how different parts of a software application work together. It is not like unit testing, which looks at each part separately; integration testing tests the connections and communications between the parts. Its purpose is to find problems where the connections happen and make sure that when put together, all parts work well as one unit.
**The purpose of automated integration testing**
Software tools are used in automated integration testing to run the test cases for integration by themselves. These tools mimic how modules interact, carry out test situations and check the outcomes on their own. The primary purposes of automated integration testing are as follows:
**Efficiency**
Automated integration testing decreases the time and work needed to do integration tests when compared with manual ways. Test scenarios can be run fast and many times without needing a person, which lets us get quicker updates on how well things are integrating.
**Regression Testing**
Software systems usually change and get updates a lot. When the code is changed, automated integration tests can be done again quickly to make sure that everything still works as before and find any new problems that might have come up because of these changes.
**Comprehensive test coverage**
Automation makes it possible to create and run many test cases, which include different ways of combining things and special situations that might be too much work to check by hand. This thorough testing finds defects that are not easy to see and makes sure the system works together strongly.
**Early detection of defects**
When teams put testing inside the continuous integration and delivery flow, they find problems sooner while making software. This quick information helps coders fix things fast, which saves time and work that would be needed if they correct errors later in the software development life cycle.
**Improved accuracy and consistency**
Automated integration testing removes mistakes made by humans and makes sure the tests run in a consistent way, resulting in more trustworthy outcomes. Test scripts are run exactly as they are set up which cuts down on the chance of getting incorrect positive or negative results from tests.
**Scalability**
When software becomes more complex, there are also more integration cases that need testing. Automated tests for integration can expand easily to meet the higher demand for tests, helping teams keep good quality even when the software is complicated.
**Documentation and reporting**
Automated tools for integration testing usually give out complete reports and logs of tests, which record the results and make it easier to connect test scenarios with what is needed. Such documents help people in the team and others involved see clearly how integration testing is done.
**Conclusion**
To sum up, integration testing is very important in making software because it checks how different parts of the program work together. By using automatic tests for this, programmers can make their work go smoother and faster, which helps to create better software.
While exploring different tools and ways for integration testing, think about using Opkey. It is a comprehensive platform that makes your test work easier and more effective. With Opkey, you are able to use automated tests to do thorough integration tests quickly and with precision. The user-friendly UI, a wide range of tests, and detailed reports give your team the ability to find and solve problems before they happen, which makes sure that your software systems are reliable and work well. | rohitbhandari102 |
1,916,821 | Overview of Radio Signal Shielding Technology | Radio signal shielding technology is a technology used to shield radio signals within a specific... | 0 | 2024-07-09T06:19:38 | https://dev.to/keikeihihi/overview-of-radio-signal-shielding-technology-1pe5 | Radio signal shielding technology is a technology used to shield radio signals within a specific frequency range. It can be used to prevent unauthorized wireless communication devices from sending or receiving signals, thereby protecting confidential information or preventing illegal behavior. In modern society, radio signal shielding technology is increasingly valued and in demand.
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Signal jammer is a common radio signal shielding technology, which is mainly used to interfere with radio signals within a specific frequency range. Signal jammers can interfere with the normal communication of target devices by emitting signals with the same frequency but stronger, thereby effectively preventing the normal operation of target devices. Signal jammers can be used to prevent malicious behavior, such as illegal communications, network attacks, etc., and can also be used to protect confidential information, such as government and corporate communication networks.
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Mobile phone signal jammer is a signal jammer specifically used to shield mobile phone signals. It can shield mobile phone signals in a specific area, thereby effectively preventing mobile phone communications in that area. Mobile phone signal jammers can be widely used in public places such as conference rooms, prisons, and libraries to prevent interference and noise from mobile phones. In addition, [mobile phone blocker](https://www.jammermfg.com/cell-phone-jammers.html) can also be used in the military field to prevent the normal communication of enemy military communication equipment and achieve the purpose of winning the battlefield.
WiFi signal jammer is a signal jammer used to shield WiFi signals. It can block WiFi signals in a specific area, thereby effectively preventing wireless network communications in that area. [WiFi jammer](https://www.jammermfg.com/wifi-jammer.html) can be widely used in corporate office areas, public places, and personal homes to protect wireless network security and prevent WiFi signals from unauthorized access and attacks.
[Drone jammers](https://www.jammermfg.com/drone-jammer.html) are signal jammer specifically used to block drone signals. It can emit interfering signals to interfere with the navigation and communication signals of drones, making it impossible for drones to continue flying or performing tasks. Drone jammers can be widely used in military fields, important activity venues, airports and other areas to protect important facilities and personnel safety and prevent drones from posing potential threats to public safety.
In summary, radio signal shielding technology is an important technical means that can be used to protect confidential information, prevent illegal activities, and maintain public safety. With the continuous development and popularization of wireless communication technology, radio signal shielding technology will be more widely used and further developed in the future.
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1,916,831 | DB Wealth Institute - Shaping the Future of Financial Professionals | In 2011, Cillian Miller founded the DB Wealth Institute. Over a decade, this institution has garnered... | 0 | 2024-07-09T06:20:12 | https://dev.to/dbwealthinstitute/db-wealth-institute-shaping-the-future-of-financial-professionals-1be9 | In 2011, Cillian Miller founded the DB Wealth Institute. Over a decade, this institution has garnered widespread recognition in the field of financial education and has cultivated a host of exceptional financial professionals. By 2024, it had grown to over 30,000 students.
DB Wealth Institute is a higher education institution dedicated to training professionals in the financial sector. Its mission is to provide high-quality financial education and training, equipping students with comprehensive financial knowledge and skills to meet the ever-evolving demands of the financial industry.
The institute's teaching team is composed of experienced tutors with backgrounds in both domestic and international finance, strategists, analysts, strategists, writers, collaborators, and contributors. They exhibit outstanding capabilities in teaching and research, integrating the latest theories and practical applications into the curriculum to develop students' abilities to analyze and solve financial problems.
The courses at DB Wealth Institute cover a range of areas including the fundamentals of finance, financial products and markets, financial risk management, investing and personal finance, and financial market analysis. They also encompass a variety of markets such as stocks, forex, funds, bonds, commodities, and cryptocurrencies. The teaching philosophy emphasizes "student interests first" and "practical experience as the best teacher." Courses blend real-life cases and hands-on practice, aiming to cultivate students' practical skills and problem-solving abilities.
Beyond regular courses, DB Wealth Institute regularly offers special lectures, seminars, and practical projects, providing students with opportunities to engage with industry leaders and adapt to the latest developments and trends in the finance sector.
Additionally, DB Wealth Institute maintains close cooperation with numerous financial institutions, offering students internships and employment support. This helps students gain practical work experience, broadens their career paths, and lays a solid foundation for their future professional development.
DB Wealth Institute is committed to providing a comprehensive and systematic financial education, training financial experts with a global perspective and professional skills, and contributing to the sustainable development of the financial industry. Through its expansive vision and rigorous academic environment, DB Wealth Institute continues to be a beacon of knowledge and opportunity in the vast sea of financial education. | dbwealthinstitute | |
1,916,833 | How do I choose the best ICO development company? | Initial Coin Offerings (ICOs) have become a popular way for startups to raise money. However,... | 0 | 2024-07-09T06:20:27 | https://dev.to/jacksam0101/how-do-i-choose-the-best-ico-development-company-2mg6 | Initial Coin Offerings (ICOs) have become a popular way for startups to raise money. However, launching a successful ICO needs a lot of expertise, careful planning, and a deep understanding of the market. Choosing the right ICO development company is crucial for the success of your project. This guide will help you choose the best ICO development company for your needs.
**Understanding the Importance of Choosing the Right ICO Development Company:**
An ICO development company is essential for the success of your token sale. They handle the design, development, and launch of your ICO. This includes building a strong blockchain system, creating smart contracts, developing both the front-end and back-end, and ensuring your platform is secure and salable. A good ICO development company can be the key to a successful token sale.
**Expertise and Experience:**
The most important factor in choosing an ICO development company is their skill and experience. The company should have a track record of successfully launching ICOs. Look for companies that know a lot about blockchain technology, cryptocurrency markets, and token creation. Check their past work and case studies to see what they can do.
**Technical Proficiency:**
The company should have a team of skilled developers who know blockchain programming languages like Solidity, which is used for writing smart contracts on the Ethereum platform. They should also understand different blockchain platforms and be able to recommend the best one for your project.
**Development Process and Methodology:**
Evaluate the company's development process, including their approach to project management, agile development, and testing. Check if they have a clear and transparent development methodology, with regular progress updates and milestones. Also, assess their ability to adapt to changing project requirements and iterate on the development process.
**Legal Compliance:**
The rules for ICOs are complex and different in each country. The best ICO development companies will have a legal team or strong legal partnerships to make sure your ICO follows all the relevant laws and regulations, like the United States Security and Exchange Commission (SEC) rules or the European Union's General Data Protection Regulation (GDPR).
**Client Reviews and Testimonials:**
Research client reviews and testimonials to understand the company’s reputation and reliability. Positive feedback from previous clients shows that the company can deliver quality services and maintain good relationships. Check reviews on third-party platforms and forums for unbiased opinions.
**Transparency and Communication:**
Clear and open communication is key to a successful partnership. The ICO development company should keep you updated on your project’s progress, give regular updates, and answer your questions. Being transparent about their processes, timelines, and costs helps build trust and ensures smooth collaboration.
**Post-ICO Support:**
The ICO process doesn't end with the token sale. Support after the ICO is crucial for the project's long-term success. Choose a company that offers post-ICO services like token listing help, community management, and ongoing technical support. This helps maintain investor confidence and ensures the project runs smoothly.
**Cost and Budget:**
While cost shouldn’t be the only thing you consider, it’s important to think about your budget when choosing an ICO development company. Compare prices from different companies to make sure you’re getting good value for your money. Be careful with companies that offer very low prices, as this might mean lower quality work.
**Cost and ROI:**
Cost is an important factor, but it shouldn’t be the only thing you look at. Find a company that offers a good balance between cost and value. The best ICO development companies will help you create a successful ICO that gives you a good return on investment (ROI).
**Additional Services:**
Consider if the company offers additional services that could benefit your project, such as marketing, community management, and investor relations.
**The Selection Process:**
Once you have identified potential ICO development companies based on the above factors, it's time to start the selection process. Here are some steps to follow:
1. Request proposals from multiple companies and compare them based on the services offered, cost, and timeline.
2. Schedule meetings or calls to discuss your project in detail and assess their understanding and enthusiasm for your vision.
3. Ask for references and contact past clients to get direct feedback on their experience.
4. Evaluate the company's communication skills and responsiveness. This will be crucial during the development process.
5. Review the contract carefully, paying special attention to the scope of work, timelines, payment terms, and confidentiality clauses.
**Conclusion:**
Launching an Initial Coin Offering (ICO) is both exciting and challenging. With Beleaf Technologies, the right ICO development company by your side, you can transform your innovative idea into a successful blockchain-based project. To make a smart decision, you need to do thorough research. Look at the company’s experience, technical skills, legal knowledge, and focus on security. Take the time to carefully review your options. When you choose the right ICO Development company, you will be on the path to reaching your goals in the constantly evolving world of cryptocurrency and blockchain technology.
**Contact details:-**
Whatsapp: +91 7904323274
Telegram: @BeleafSoftTech
Mail to: business@beleaftechnologies.com
Skype: live:.cid.62ff8496d3390349
| jacksam0101 | |
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1,916,854 | End-to-End Testing: Ensuring Comprehensive Software Quality | In the world of software development, ensuring that an application works as intended from start to... | 0 | 2024-07-09T06:31:55 | https://dev.to/keploy/end-to-end-testing-ensuring-comprehensive-software-quality-3e5k | testing, end, devops, ai |
In the world of software development, ensuring that an application works as intended from start to finish is crucial. End-to-end (E2E) testing plays a vital role in this process by validating the flow of an application from the user’s perspective. This article explores the concept of [end-to-end testing](https://keploy.io/blog/community/e2e-testing-or-unit-testing-difference), its significance, methodologies, popular tools, and best practices.
Understanding End-to-End Testing
End-to-end testing involves testing an application’s workflow from beginning to end to ensure that the integrated components work together as expected. It simulates real user scenarios to validate the system as a whole, covering aspects like database interaction, network communication, and external integrations. Unlike unit or integration testing, which focuses on individual components, E2E testing verifies the entire application flow.
The Importance of End-to-End Testing
1. User Experience Validation: E2E testing validates the application’s behavior from the user’s perspective, ensuring a seamless user experience.
2. Integration Testing: It verifies that different components of the application, including third-party services, work together correctly.
3. Regression Testing: E2E tests help catch regressions by validating that new changes do not break existing functionality.
4. Confidence in Release: Thorough E2E testing provides confidence in the software’s quality, reducing the risk of issues in production.
Methodologies in End-to-End Testing
1. Black Box Testing: Testers do not need to know the internal workings of the application. They focus on the inputs and expected outputs based on user requirements.
2. Automated Testing: Automation tools execute E2E tests to simulate user interactions, ensuring consistency and saving time.
3. Manual Testing: Testers manually perform E2E tests to validate complex user scenarios that might be challenging to automate.
Popular End-to-End Testing Tools
For Web Applications
1. Selenium:
o Description: Selenium is a widely-used open-source tool for automating web browsers.
o Features: Supports multiple programming languages (Java, C#, Python), cross-browser testing, and integration with CI/CD pipelines.
o Example:
python
Copy code
from selenium import webdriver
from selenium.webdriver.common.by import By
driver = webdriver.Chrome()
driver.get("http://example.com/login")
driver.find_element(By.ID, "username").send_keys("user")
driver.find_element(By.ID, "password").send_keys("pass")
driver.find_element(By.ID, "login").click()
assert "Dashboard" in driver.title
driver.quit()
2. Cypress:
o Description: Cypress is a modern E2E testing framework for web applications.
o Features: Fast, reliable, and easy to set up, with real-time reloading and debugging capabilities.
o Example:
javascript
Copy code
describe('Login Test', () => {
it('should log in successfully', () => {
cy.visit('http://example.com/login');
cy.get('#username').type('user');
cy.get('#password').type('pass');
cy.get('#login').click();
cy.title().should('include', 'Dashboard');
});
});
3. Puppeteer:
o Description: Puppeteer is a Node.js library for controlling headless Chrome or Chromium browsers.
o Features: Provides a high-level API to control browser actions, making it suitable for web scraping and testing.
o Example:
javascript
Copy code
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('http://example.com/login');
await page.type('#username', 'user');
await page.type('#password', 'pass');
await page.click('#login');
await page.waitForSelector('#dashboard');
const title = await page.title();
console.log(title);
await browser.close();
})();
For Mobile Applications
1. Appium:
o Description: Appium is an open-source tool for automating mobile applications on iOS and Android platforms.
o Features: Supports multiple programming languages and allows for cross-platform testing.
o Example:
javascript
Copy code
const wdio = require("webdriverio");
const opts = {
path: '/wd/hub',
port: 4723,
capabilities: {
platformName: "Android",
platformVersion: "10",
deviceName: "Android Emulator",
app: "/path/to/app.apk",
automationName: "UiAutomator2"
}
};
async function main() {
const client = await wdio.remote(opts);
const field = await client.$("~username");
await field.setValue("user");
const field2 = await client.$("~password");
await field2.setValue("pass");
const button = await client.$("~login");
await button.click();
await client.deleteSession();
}
main();
2. Espresso:
o Description: Espresso is a native testing framework for Android applications.
o Features: Provides fast and reliable testing with simple APIs.
o Example:
java
Copy code
@RunWith(AndroidJUnit4.class)
public class LoginTest {
@Rule
public ActivityScenarioRule<MainActivity> activityRule =
new ActivityScenarioRule<>(MainActivity.class);
@Test
public void testLogin() {
onView(withId(R.id.username)).perform(typeText("user"));
onView(withId(R.id.password)).perform(typeText("pass"));
onView(withId(R.id.login)).perform(click());
onView(withId(R.id.dashboard)).check(matches(isDisplayed()));
}
}
3. XCUITest:
o Description: XCUITest is a testing framework for iOS applications.
o Features: Integrates with Xcode and supports writing tests in Swift or Objective-C.
o Example:
swift
Copy code
import XCTest
class LoginTest: XCTestCase {
let app = XCUIApplication()
override func setUp() {
continueAfterFailure = false
app.launch()
}
func testLogin() {
let usernameField = app.textFields["username"]
usernameField.tap()
usernameField.typeText("user")
let passwordField = app.secureTextFields["password"]
passwordField.tap()
passwordField.typeText("pass")
app.buttons["login"].tap()
XCTAssert(app.staticTexts["Dashboard"].exists)
}
}
Benefits of End-to-End Testing
1. Comprehensive Coverage: E2E testing covers the entire application flow, ensuring that all components work together seamlessly.
2. Improved User Experience: By simulating real user interactions, E2E tests validate the user experience and help identify potential usability issues.
3. Increased Confidence: Thorough E2E testing provides confidence that the application will function correctly in production.
4. Detection of Integration Issues: E2E tests can identify issues that arise from the interaction between different components and services.
5. Reduced Risk: By catching issues before they reach production, E2E testing reduces the risk of costly defects and downtime.
Best Practices for End-to-End Testing
1. Prioritize Critical Paths: Focus on testing critical user journeys and high-risk areas of the application.
2. Automate Repetitive Tests: Automate tests that are run frequently to save time and ensure consistency.
3. Maintain Test Environments: Use stable and consistent test environments to avoid false positives and negatives.
4. Mock External Services: Use mocking or stubbing to simulate external dependencies, ensuring tests are isolated and reliable.
5. Run Tests Regularly: Integrate E2E tests into the CI/CD pipeline to ensure they run frequently and provide continuous feedback.
6. Keep Tests Maintainable: Write clean and maintainable test code to make it easier to update and manage tests as the application evolves.
7. Balance Between Different Types of Tests: Combine E2E tests with unit and integration tests to achieve comprehensive test coverage without compromising test execution time.
Conclusion
End-to-end testing is a critical component of a comprehensive testing strategy, ensuring that an application works as intended from the user's perspective. By validating the entire application flow, E2E tests help ensure a seamless user experience, detect integration issues, and provide confidence in the software's quality. Leveraging tools like Selenium, Cypress, Puppeteer, Appium, Espresso, and XCUITest, along with adhering to best practices, developers can effectively implement E2E testing and deliver high-quality software products.
| keploy |
1,916,837 | Nightmare AI: Guide on Creating AI Image Upscaler Like it | Looking to create an AI image upscaler like Nightmare AI? Explore our blog for tips on developing... | 0 | 2024-07-09T09:55:09 | https://dev.to/novita_ai/nightmare-ai-guide-on-creating-ai-image-upscaler-like-it-4ccg | Looking to create an AI image upscaler like Nightmare AI? Explore our blog for tips on developing your own AI tool.
## Introduction
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## Understanding Nightmare AI
### What is Nightmare AI?
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- **Convolutional Neural Networks (CNNs):** CNNs are at the core of many image-processing tasks in AI. They are particularly good at capturing spatial hierarchies in image data.
## How is Nightmare AI?
Nightmare AI is an efficient solution for anyone looking to upscale and improve the quality of their images using AI-driven technology.
### Key Features of Nightmare AI
- **AI Photo Upscaler:** It can effectively double or quadruple the resolution of your images and even supports scaling up to 2K and 4K standards.
- **AI Anime Upscaler:** This upscaler refines the clarity of hazy anime, cartoon, and comic images, automatically enhancing details to ensure high-quality images.
- **AI Image Upscaler:** This upscaler can boost image resolution with minimal quality loss, preserving sharpness and fine details.
### Benefits of Using Nightmare AI
- **Improved Image Resolution:** Nightmare AI can easily upscale images to higher resolutions, ensuring that details are not lost.
- **Batch Processing Capability:** It allows for the simultaneous enhancement of more than one image, streamlining the user's workflows.
- **Ease of Use:** Features an intuitive user interface that makes the image enhancement process straightforward, even for those without technical expertise.
- **Versatility:** Supports a wide range of image formats, making Nightmare AI a flexible tool for different types of image files.
- **Accessibility:** Being an online tool, Nightmare AI can be accessed from anywhere with an internet connection.
## How to Use Nightmare AI to Upscale Images?
### Steps Guide on Using Nightmare AI
- Step 1: Visit the Nightmare AI website and create a new account. You'll have two free credits for every new sign-up.
- Step 2: Upload the image you want to enhance, which should be less than 10 MB.
- Step 3: Select the resolution between 2K and 4K. Different resolutions take different credits.
- Step 4: Wait for a while and you'll get your image.
### Nightmare AI Pricing
Nightmare AI offers various pricing plans for users to choose from, including the Free plan, the Standard plan, and the Basic plan. Different plans have different credit quantities and usage durations. If you are not satisfied with its service, it also offers a 14-day money-back guarantee.
## Develop An AI Image Upscaler Like Nightmare AI Through Novita AI
Although Nightmare AI is useful, you may encounter cost issues as its free version has limitations and long-time responses for some complex uploaded images, or you may not be so satisfied with its upscale effect. Here comes Novita AI which can help you create your own AI image upscaler through APIs.
### What and Why is Novita AI?
**[Novita AI](https://novita.ai/)** is an innovative and powerful API platform that features hundreds of APIs for developers to create their AI tools, including image upscale. Novita AI's upscale API prides itself on superior image quality, promising to deliver clear, sharp, and detailed images even after significant upscaling. One of its key advantages is its ease of use - it is designed to be user-friendly, making it accessible even to those without a technical background.
### How to Develop Your AI Imgae Upscaler Through APIs in Novita AI
- Step 1: Visit the Novita AI website and create an account.
- Step 2: Navigate to "API" to find the "**[Upscale](https://novita.ai/reference/image_editor/upscale.html)**" under the "Image Editor" tab.
- Step 3: Obtain the API key and integrate it into your existing project backend. Or you can use it to make the API request under the development environment you have already set up.
- Step 4: Wait for the response and figure out the one fits your needs.
- Step 5: Before operating your tool, have everything fully checked.
Try it on the "playground"
- Step 1: Navigate to "**[upscale](https://novita.ai/playground#upscale)**" on its "playground".
- Step 2: Upload the image to be upscaled.
- Step 3: Select the model and set the parameter according to your needs.
- Step 4: Click "Generate" and wait for your output in just a few seconds.
- Step 5: Download the generated image.
## Conclusion
In conclusion, the realm of AI-driven image enhancement has been significantly advanced by tools like Nightmare AI. By harnessing the power of advanced algorithms such as Real-ESRGAN, Nightmare AI can not only elevate the resolution of images but also enrich their quality, clarity, and detail. For those aspiring to develop an AI image upscaler like Nightmare AI, integrating the APIs in Novita AI is simple. The future holds promise for more sophisticated tools that will further bridge the gap between digital creation and human artistry.
> Originally published at [Novita AI](https://blogs.novita.ai/nightmare-ai-guide-on-creating-ai-image-upscaler-like-it/?utm_source=dev_image&utm_medium=article&utm_campaign=nightmare-ai)
> [Novita AI](https://novita.ai/?utm_source=dev_image&utm_medium=article&utm_campaign=create-ai-image-upscaler-like-nightmare-ai) is the all-in-one cloud platform that empowers your AI ambitions. With seamlessly integrated APIs, serverless computing, and GPU acceleration, we provide the cost-effective tools you need to rapidly build and scale your AI-driven business. Eliminate infrastructure headaches and get started for free - Novita AI makes your AI dreams a reality.
| novita_ai | |
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1,916,840 | RBAC and ABAC: The access control models you should know | Role-based access control (RBAC) and attribute-based access control (ABAC) are two of the most... | 0 | 2024-07-09T06:25:42 | https://blog.logto.io/rbac-and-abac/ | webdev, identity, opensource, programming | Role-based access control (RBAC) and attribute-based access control (ABAC) are two of the most popular access control models. In this post, we will give a brief overview of both models and discuss their differences.
---
# Introduction
Access control is a critical aspect of security in any system. It ensures that only authorized users can access resources and perform actions. Role-based access control (RBAC) and attribute-based access control (ABAC) are two of the most popular access control models used in modern systems. Both models are widely adopted and can be used to enforce access control policies effectively. But what are they and how they differ?
# Role-based access control (RBAC)
RBAC was first introduced in the early 1990s. The formalization of the model is credited to David Ferraiolo and Rick Kuhn in a [paper](https://csrc.nist.gov/files/pubs/conference/1992/10/13/rolebased-access-controls/final/docs/ferraiolo-kuhn-92.pdf) published in 1992. Since then, RBAC has become one of the most widely used access control models in the industry.
In RBAC, access control policies are based on roles, which are collections of permissions. Users are assigned roles (e.g., administrator, editor, viewer), and their access rights are determined by the permissions (e.g., create, edit, delete) for specific resources (e.g., files, databases, applications). It simplifies the management of access control policies by grouping users based on their roles and assigning permissions to roles. It is straightforward to add or remove users from roles, and the changes will be automatically reflected in the access control policies.
## Key components of RBAC
- **Resource**: A resource is an entity that a user can access. Resources can be anything from files, databases, APIs, or any other system entity that needs to be protected.
- **Permission**: A permission is a specific action that a user can perform on a resource. For example, create, edit, delete, view. The definition of permissions may vary depending on the system. In most of the cases, permissions are defined at the level of the resource with a minimum granularity.
- **Role**: A role is a collection of permissions that define a set of actions that a user can perform. For example, an administrator role may have permissions to create, edit, and delete resources, while a viewer role may have permission to view resources.
- **User**: A user is an entity that can be assigned one or more roles. Users are granted access to resources based on the permissions associated with the roles they are assigned.
## Pros of RBAC
- **Simplicity**: RBAC is easy to understand and implement. Assigning permissions to roles and roles to users is straightforward.
- **Efficiency**: It simplifies the management of access control policies by grouping users based on their roles. It is easy to add or remove users from roles without changing the access control policies. Especially in large organizations with well-defined permission structures, RBAC can be very efficient.
- **Transparency**: RBAC provides a clear mapping between roles, permissions, and users. It is easy to audit and review access control policies.
## Cons of RBAC
- **Rigidity**: RBAC can be rigid when it comes to defining complex access control policies. It may not be suitable for systems where access control policies need to be more dynamic and context-aware.
- **Granularity**: RBAC may lack the granularity required for fine-grained access control. The access control policies are tied up to well defined roles, and it may require extra effort to define permissions at a more granular level.
- **Role explosion**: In large organizations with complex permission structures, the number of roles can grow exponentially, leading to role explosion. Managing a large number of roles can be challenging.
# Attribute-based access control (ABAC)
In the late 2000s, as systems became more complex and dynamic, more and more organizations started to adopt attribute-based access control (ABAC) as an alternative to RBAC. A notable milestone in the formalization of ABAC is the publication of the [NIST Special Publication 800-162](https://csrc.nist.gov/pubs/sp/800/162/upd2/final) in 2014.
ABAC is a more flexible access control model compared to RBAC. It is an authorization model that defines access control policies based on the attributes of the user, resource, action and environment. It allows organizations to define fine-grained access control policies that can adapt to different contexts and conditions.
## Key components of ABAC
- **Subject**: A subject is an entity that requests access to a resource. It can be a user, a device, an application, or any other entity that needs to access resources.
- **Resource**: Just like in RBAC, a resource is an entity that a subject can access. Resources can be files, databases, APIs, or any other system entity.
- **Action**: An action is a specific operation that a subject can perform on a resource. It can be create, read, update, delete, or any other operation that needs to be controlled.
- **Environment**: The environment is the context in which the access request is made. It can include attributes such as time of day, location, network, device, etc.
- **Attribute**: An attribute is a characteristic of a subject, resource, action, or environment. Attributes can be anything from user roles, department, location, IP address, device type, etc.
- **Policy**: A policy is a rule that defines the conditions under which access is granted or denied. Policies are defined based on the attributes.
## Pros of ABAC
- **Flexibility**: ABAC can accommodate complex access control policies that are based on multiple attributes. It allows organizations to define fine-grained policies that can adapt to different contexts and conditions.
- **Dynamic**: ABAC policies can be dynamic and context-aware. Access control decisions can be made based on real-time attributes such as location, time of day, device type, etc.
- **Granularity**: ABAC provides fine-grained access control by allowing organizations to define policies based on multiple attributes. Unlike defining roles and permissions, attributes based policies can be more granular.
## Cons of ABAC
- **Complexity**: ABAC can be more complex to implement and manage compared to RBAC. Defining attributes and policies can require more effort and expertise. Unlike RBAC, where roles and permissions are well-structured, attributes can be more dynamic and so dose the policies. Managing a large number of attributes and policies in a complex system can be challenging. A centralized policy evaluation engine is often required to evaluate the policies.
- **Performance**: Attribute evaluation can impact performance, especially in real-time environments. Policies based on multiple attributes and real-time conditions can introduce latency in access control decisions.
# Comparison table
From the comparison table, it is clear that RBAC is best suited for systems with well-defined permission structures and where access control policies are relatively static. On the other hand, ABAC is more suitable for systems where access control policies need to be dynamic, context-aware, and fine-grained.
# Examples
Scenario: A hospital system that need to manage access to patient records for different staff members.
- **Staff**: Doctors, Nurses, Administrators
- **Resources**: Patient records
- **Permissions**: Read, Write, Delete
## Case 1
The access control policies are relatively simple:
1. Doctors can read and write patient records.
2. Nurses can read patient records.
3. Administrators can read, write, and delete patient records.
### RBAC model
In this case, RBAC is simple and effective. We can define roles for doctors, nurses, and administrators, and assign the appropriate permissions to each role.
The access control evaluation is straightforward:
- **GET /patient-records**: user.permission.includes('read')
- **POST /patient-records**: user.permission.includes('write')
- **DELETE /patient-records**: user.permission.includes('delete')
### ABAC model
In this case, ABAC may be an overkill, but it can still be used to define fine-grained policies based on attributes such as department, role, etc.
Attributes:
- user.role: `doctor`, `nurse`, `admin`
- resource.name: `patient-record`
- action: `read`, `write`, `delete`
Policies:
- Policy 1: Allow read access based on user.role and resource.name
- **subject**: User with role `doctor`, `nurse`, `admin`
- **resource**: Resource with name `patient-record`
- **action**: `read`
- **effect**: allow
- **rationale**: "Allow read access to patient records for all roles"
- Policy 2: Edit Access for doctors and admins
- **subject**: User with role `doctor`, `admin`
- **resource**: Resource with name `patient-record`
- **action**: `write`
- **effect**: allow
- **rationale**: "Allow write access to patient records for doctors and admins"
- Policy 3: Delete Access for admins
- **subject**: User with role `admin`
- **resource**: Resource with name `patient-record`
- **action**: `delete`
- **effect**: allow
- **rationale**: "Allow delete access to patient records for admins"
For each read/write/delete request, the policy engine evaluates all the relevant policies based on the attributes and makes an access control decision.
## Case 2
Same hospital system, now lets introduce a new role `patient` and a new attribute `patient-id`.
The access control policies are:
1. Doctors can read and write patient records.
2. Nurses can read patient records.
3. Administrators can read, write, and delete patient records.
4. Patients can read their own records.
### RBAC model
In this case, apart from the old `read` permission, we need to introduce a new permission `read-own`. We can define roles for doctors, nurses, administrators, and patients, and assign the appropriate permissions to each role.
Now the access control evaluation is a little bit more complex, especially for the read patient record action:
- **GET /patient-records**: user.permission.includes('read')
- **POST /patient-records**: user.permission.includes('write')
- **DELETE /patient-records**: user.permission.includes('delete')
- **GET /patient-records/:patient-id**: user.permission.includes('read-own') && user.id === patient-id || user.permission.includes('read')
### ABAC model
Now let's update the attributes and policies in the ABAC model to accommodate the new requirements.
Attributes:
- **user.role**: doctor, nurse, admin, patient
- **user.id**: patient-id
- **resource.name**: patient-record
- **resource.patient-id**: patient-id
- **action**: read, write, delete
Policies:
- Policy 1: Allow read access to all patient records
- **subject**: User with role `doctor`, `nurse`, `admin`
- **resource**: Resource with name `patient-record`
- **action**: `read`
- **effect**: allow
- **rationale**: "Allow read access to patient records for all staffs and patient himself"
- Policy 2: Allow write access to all patient records for doctors and admins
- **subject**: User with role `doctor`, `admin`
- **resource**: Resource with name `patient-record`
- **action**: `write`
- **effect**: allow
- **rationale**: "Allow write access to patient records for doctors and admins"
- Policy 3: Allow delete access to all patient records for admins
- **subject**: User with role `admin`
- **resource**: Resource with name `patient-record`
- **action**: `delete`
- **effect**: allow
- **rationale**: "Allow delete access to patient records for admins"
- Policy 4: Allow read access to own patient records
- **subject**: User with role `patient`
- **resource**: Resource with name `patient-record`
- **action**: `read`
- **condition**: user.id === resource.patient-id
- **effect**: allow
- **rationale**: "Allow read access to own patient records"
# Conclusion
Now let's take a deep look at the above two cases.
In the first case, the access control policies are simple and well-structured. It only requires a single level permission check to determine whether a user has access to a resource. Imagine the hospital system has a more complex structure with multiple departments, roles, and permissions. In a RBAC model, the access control evaluation process of the patient records resource will still remain simple and straightforward, whether the user has the `read`, `write`, or `delete` permission. ABAC, on the other hand, need to involve additional attributes like `department-id` and `doctor-id`. What if a IoT device that needs to access the patient records? It will require a new attribute `device-id` to be introduced in the policy evaluation. How about granting the `read` permission temporarily to an intern doctor?
In the second case, the access control policies are more complex and context-aware. The access control evaluation process of the patient records resource will require multiple levels of permission checks to determine whether a user has access to a resource. An extra level of resource attribute `patient-id` is introduced in the policy evaluation. In an RBAC model, we have to introduce a new permission `read-own` to accommodate the new requirement, plus an extra comparison logic to evaluate the ownership of the patient record. A simple permission check is no longer sufficient.The access control evaluation process will become more complex. In this case, ABAC is a better fit. ABAC allows organizations to define fine-grained policies based on multiple attributes and conditions. Imagine the hospital system has more complex and granular access control over the patient records, such as different access levels for different departments and doctors. A doctor can only access the patient records of his/her department. Patient records can only be accessed using a hospital internal IP address. This may increase the complexity of defining and managing the access control policies in a RBAC model significantly. ABAC might be a better choice this time.
The choice between RBAC and ABAC depends on the specific requirements of the system. RBAC is best suited for systems with well-defined permission structures and where access control policies are static. ABAC is more suitable for systems where access control policies need to be dynamic, context-aware, and fine-grained. In practice, organizations may choose to use a combination of both models to achieve the desired level of access control.
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