id int64 5 1.93M | title stringlengths 0 128 | description stringlengths 0 25.5k | collection_id int64 0 28.1k | published_timestamp timestamp[s] | canonical_url stringlengths 14 581 | tag_list stringlengths 0 120 | body_markdown stringlengths 0 716k | user_username stringlengths 2 30 |
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1,857,488 | Mastering Advanced Debugging with Chrome DevTools: A Comprehensive Guide | Introduction: In the world of web development, debugging is a crucial skill that can make the... | 0 | 2024-05-25T12:39:00 | https://dev.to/nitin-rachabathuni/mastering-advanced-debugging-with-chrome-devtools-a-comprehensive-guide-54om | Introduction:
In the world of web development, debugging is a crucial skill that can make the difference between a smooth, error-free application and one fraught with issues. Fortunately, tools like Chrome DevTools provide developers with a powerful arsenal to diagnose and fix bugs effectively. While many developers are familiar with the basic features of DevTools, there's a wealth of advanced functionality waiting to be explored. In this article, we'll delve into some advanced debugging techniques using Chrome DevTools, complete with coding examples to illustrate each concept.
Performance Profiling:
Performance issues can be elusive but detrimental to user experience. Chrome DevTools offers robust performance profiling capabilities to identify bottlenecks in your code. Use the Performance panel to record and analyze CPU usage, network activity, and rendering performance. For example, you can pinpoint slow JavaScript functions or excessive layout recalculations causing rendering delays.
```
function slowFunction() {
// Time-consuming operations
}
console.time('slowFunction');
slowFunction();
console.timeEnd('slowFunction');
```
Memory Leak Detection:
Memory leaks can plague web applications, causing sluggishness and eventual crashes. DevTools' Memory panel allows you to take heap snapshots and track memory allocations over time. Look for objects that accumulate unexpectedly or aren't properly released, indicating potential memory leaks.
```
class MyClass {
constructor() {
this.data = new Array(1000000); // Allocating memory
}
}
let instances = [];
setInterval(() => {
instances.push(new MyClass()); // Creating new instances
}, 1000);
```
Advanced Breakpoints:
Breakpoints are indispensable for debugging, but DevTools offers more than just pausing execution at a line of code. Conditional breakpoints let you halt execution only when specific conditions are met, while DOM change breakpoints pause when a particular DOM element is modified.
```
function processData(data) {
// Process data
}
// Conditional breakpoint
processData(myData); // Set breakpoint: data.length > 1000
// DOM change breakpoint
document.querySelector('.btn').addEventListener('click', () => {
// Handle click event
});
```
XHR/Fetch Breakpoints:
Intercepting XHR (XMLHttpRequest) or Fetch requests can be challenging without the right tools. With DevTools, you can set breakpoints directly on network requests, allowing you to inspect request and response data, headers, and payloads.
```
fetch('https://api.example.com/data')
.then(response => response.json())
.then(data => {
// Process data
})
.catch(error => console.error(error));
// Set breakpoint on fetch request
```
Workspaces and Live Editing:
DevTools' workspace feature enables seamless integration between your local file system and the browser. You can map local files to network resources, edit them directly in DevTools, and have changes persist across reloads. This is particularly useful for debugging complex build processes or tweaking stylesheets on the fly.
```
<!-- Enable DevTools workspace -->
<script>
// Add local folder to workspace
Sources > Filesystem > Add folder to workspace
</script>
```
Conclusion:
Chrome DevTools is more than just a debugger; it's a Swiss Army knife for web developers, offering a plethora of advanced features to streamline the debugging process. By mastering these techniques—from performance profiling to live editing—you can become a more efficient and effective developer, capable of tackling even the most challenging bugs with confidence. Incorporate these tools into your workflow, and watch as your debugging skills reach new heights. Happy debugging!
---
Thank you for reading my article! For more updates and useful information, feel free to connect with me on LinkedIn and follow me on Twitter. I look forward to engaging with more like-minded professionals and sharing valuable insights.
| nitin-rachabathuni | |
1,864,837 | Unlocking the Power of NodeJS with Human Library | The Power of NodeJS and Its Usage NodeJS is a powerful runtime environment that allows... | 0 | 2024-05-25T12:33:58 | https://dev.to/tarek_eissa/unlocking-the-power-of-nodejs-with-human-library-3jo0 | node, ai, webdev, javascript | ## The Power of NodeJS and Its Usage
NodeJS is a powerful runtime environment that allows developers to build scalable and high-performance applications using JavaScript. Its event-driven architecture and non-blocking I/O operations make it an ideal choice for building real-time applications such as chat applications, online gaming, collaboration tools, and much more.
In this post, we'll explore the "Human Library," a comprehensive AI-powered toolkit for 3D face detection, rotation tracking, face description, recognition, and more. We'll delve into its features, installation process, and various use cases, demonstrating how NodeJS enhances its capabilities.
### Features of the Human Library
The Human Library boasts an impressive array of features, making it a versatile tool for developers working on a wide range of applications:
- **3D Face Detection & Rotation Tracking**: Accurate detection and tracking of faces in 3D space.
- **Face Description & Recognition**: Advanced algorithms for describing and recognizing faces.
- **Body Pose Tracking**: Detailed tracking of body poses for various applications.
- **3D Hand & Finger Tracking**: Precision tracking of hand and finger movements.
- **Iris Analysis**: In-depth analysis of the iris for biometric applications.
- **Age, Gender & Emotion Prediction**: Predict demographic and emotional states from facial data.
- **Gaze Tracking**: Track where a person is looking in real-time.
- **Gesture Recognition**: Recognize and interpret human gestures.
- **Body Segmentation**: Separate the body from the background in images and videos.
### Installation
Getting started with the Human Library is straightforward. Here's a step-by-step guide to install and set up the library:
1. **Install NodeJS**: Ensure you have NodeJS installed on your machine. You can download it from the [official website](https://nodejs.org/).
2. **Initialize a New NodeJS Project**:
```bash
mkdir human-library
cd human-library
npm init -y
```
3. **Install the Human Library**:
```bash
npm install @vladmandic/human
```
4. **Set Up a Basic Project**: Create an `index.js` file with the following content to test the installation.
```javascript
const Human = require('@vladmandic/human');
const human = new Human();
human.init().then(() => {
console.log('Human library initialized');
});
```
### Multi-use Cases
The Human Library is versatile and can be integrated into various applications. Here are a few examples:
#### Real-time Video Processing
Use the Human Library to process video streams from webcams or other sources, providing real-time feedback on facial expressions, gaze direction, and more.
#### Security and Surveillance
Implement face recognition and tracking to enhance security systems, allowing for automated detection of individuals and monitoring of their activities.
#### Healthcare
Utilize body pose tracking and gesture recognition to develop applications for physical therapy, enabling remote monitoring of exercises and movements.
#### Virtual and Augmented Reality
Incorporate 3D face and body tracking into VR and AR applications to create more immersive and interactive experiences.
### Scalability and Possible Applications
NodeJS, with its non-blocking I/O and event-driven architecture, provides the perfect backbone for scalable applications using the Human Library. Whether you're developing a small prototype or a large-scale deployment, NodeJS can handle the load efficiently.
#### Application Examples
- **Facial Recognition in Retail**: Enhance customer experiences by recognizing returning customers and providing personalized services.
- **Fitness Applications**: Track users' exercises and provide real-time feedback on their form and movements.
- **Interactive Advertising**: Create interactive billboards that respond to viewers' gestures and facial expressions.
### Conclusion
The Human Library, combined with the power of NodeJS, opens up endless possibilities for developers. Its comprehensive set of features allows for the creation of innovative applications across various industries. By leveraging NodeJS's scalability and performance, you can build robust and high-performing solutions that take full advantage of AI-powered human tracking and recognition.
### Resources
- **GitHub Repository**: [Human Library](https://github.com/vladmandic/human)
- **NPM Package**: [@vladmandic/human](https://www.npmjs.com/package/@vladmandic/human)
- **Live Demos**: [Human Library Demos](https://github.com/vladmandic/human#live-demos)
### Further Reading
- **Documentation**: [Human Library Documentation](https://github.com/vladmandic/human/wiki)
- **Installation Guide**: [Installation Instructions](https://github.com/vladmandic/human#installation)
- **API Reference**: [TypeDoc API Specification](https://github.com/vladmandic/human/blob/main/api/typedoc/index.html) | tarek_eissa |
1,864,835 | Вопрос | Мы не так давно стали счастливыми обладателями дачного участка, с дома, но проблема заключается в... | 0 | 2024-05-25T12:25:55 | https://dev.to/__9a35527b8dd1b/vopros-6eg | Мы не так давно стали счастливыми обладателями дачного участка, с дома, но проблема заключается в том, что у нас все в комарах, стало понятно, с приходом тепла, что нужно с этим что-то делать, потому как максимально некомфортно. Вот, например, интересовала услуга меня обработки земли и газона от комаров https://dezgroup.ru/services/unichtozhenie-nasekomykh/dezinsektsiya-ot-komarov/obrabotka-zemli-i-gazona-ot-komarov/ от компании, что уже давно работают данные области, и имеет отличную репутацию, и при этом адекватные цены. Подскажите, возможно среди нас есть, кто обращался к ним, подскажите, как вам? Потому как вижу, что они гарантии дают | __9a35527b8dd1b | |
1,864,834 | Updating to Angular Material 18: Keeping Support for Material 2 and Adding Support for Material 3 | In this article, we will update Angular Material 17 to 18, with Material 2 and also Material 3 | 0 | 2024-05-25T12:22:37 | https://angular-material.dev/articles/updating-to-angular-material-18 | anguar, angularmaterial, materialdesign, webdev | ---
title: Updating to Angular Material 18: Keeping Support for Material 2 and Adding Support for Material 3
published: true
description: In this article, we will update Angular Material 17 to 18, with Material 2 and also Material 3
tags: anguar,angularmaterial,materialdesign,webdevelopment
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/13g1jl9wheevjh0nrd6f.png
canonical_url: https://angular-material.dev/articles/updating-to-angular-material-18
---
> In this quick guide, we will update an Angular project with Angular Material 17 to 18. And we will also learn how to keep support for M2 and add support for M3.
## Existing Project
For this guide, I am going to use the project [course-md-ng-my-app](https://github.com/Angular-Material-Dev/course-md-ng-my-app/tree/angular-material-17) from my course. You can clone it using below commands:
```bash
git clone https://github.com/Angular-Material-Dev/course-md-ng-my-app --branch angular-material-17
cd course-md-ng-my-app
npm i
```
## Finding the updates
We will first find out the updates using Angular CLI's update command:
```bash
ng update
```
You should see the output like below:
```bash
Name Version Command to update
--------------------------------------------------------------------------------
@angular/cdk 17.3.10 -> 18.0.0 ng update @angular/cdk
@angular/cli 17.3.8 -> 18.0.1 ng update @angular/cli
@angular/core 17.3.10 -> 18.0.0 ng update @angular/core
@angular/material 17.3.10 -> 18.0.0 ng update @angular/material
```
## Update Angular CLI to 18
```bash
ng update @angular/cli@18
```
When asked about migrating to the new build system, I am going to select it using `space` and press `enter`. As it's optional, you can skip it.
```bash
Select the migrations that you'd like to run (Press <space> to select, <a> to toggle all, <i> to invert selection, and
<enter> to proceed)
❯◯ [use-application-builder] Migrate application projects to the new build system.
(https://angular.dev/tools/cli/build-system-migration)
```
### Check your app
After updating Angular CLI to 18, please check the application by running `npm start` command.
## Update Angular Material to 18
```bash
ng update @angular/material@18
```
Above command will update both, `@angular/material` and `@angular/cdk` to version 18.
Now, Angular Material did not provide schematic support to migrate SASS theme APIs to latest ones. So, if you run the project now, you will see many errors. We will try to resolve them one-by-one.
## Keeping Support for Material 2 (M2)
First, we will make changes in such a way that our application still follows Material 2 designs. If you want to simply update your application for Material 3 (M3), jump to [Adding support for Material 3 (M3)](#adding-support-for-material-3-m3)
Each section will have a table with 2 columns, **old** and **new**. Simply find and replace value from *old* with value from *new* in whole project.
### Typography changes for M2
| Index | Old | New |
| ----- | -------------------------- | ----------------------------- |
| 1 | `define-typography-config` | `m2-define-typography-config` |
| 2 | `define-typography-level` | `m2-define-typography-level` |
### Color palettes changes for M2
| Index | Old | New |
| ----- | ---------------- | ------------------- |
| 1 | `define-palette` | `m2-define-palette` |
#### Predefined palettes changes for M2
If you're using any pre-defined palette, like `mat.$indigo-palette`, pre-fix the variable with `m2`. So, new palette would become `mat.$m2-indigo-palette`
### Theming changes for M2
| Index | Old | New |
| ----- | -------------------- | ----------------------- |
| 1 | `define-light-theme` | `m2-define-light-theme` |
| 2 | `define-dark-theme` | `m2-define-dark-theme` |
#### Adding typography for dark theme
As we are going to lazy load the dark theme, we need to include `typography` in it. So, until now, the dark theme looks like below:
```scss
// Define a dark theme
$my-app-dark-theme: mat.m2-define-dark-theme(
(
color: (
primary: mat.m2-define-palette(mat.$m2-pink-palette),
accent: mat.m2-define-palette(mat.$m2-blue-grey-palette),
),
)
);
```
Simply add `typography` in the map like below:
```scss
// Define a dark theme
$my-app-dark-theme: mat.m2-define-dark-theme(
(
color: (
primary: mat.m2-define-palette(mat.$m2-pink-palette),
accent: mat.m2-define-palette(mat.$m2-blue-grey-palette),
),
typography: config.$my-app-typography, // 👈 Added
)
);
```
### Changes for custom component
In this project, we have a custom component at `ui/alert`, in that we are using Material theme (colors and typography) using Angular Material SASS mixins and functions. In this section, we will look into changes needed for making it compatible with Angular Material 18.
The file we are targeting is at `src/app/ui/alert/_alert-theme.scss`.
#### TL;DR
If you simply want to check the final code, it will look like below:
```scss
// _alert-theme.scss
@use "sass:map";
@use "@angular/material" as mat;
@mixin color($theme) {
$type: mat.get-theme-type($theme);
$is-dark-theme: $type == dark;
$exportBackgroundOpacity: if($is-dark-theme, 0.12, 0.06);
.alert {
color: mat.get-theme-color(
$theme,
primary,
if($is-dark-theme, 50, default)
);
background: rgba(
mat.get-theme-color($theme, primary, 300),
$exportBackgroundOpacity
);
border-color: mat.get-theme-color($theme, primary, 100);
.alert-link {
color: mat.get-theme-color($theme, primary, if($is-dark-theme, 200, 500));
}
}
}
@mixin typography($theme) {
.alert {
font: mat.get-theme-typography($theme, body-1);
letter-spacing: mat.get-theme-typography($theme, body-1, letter-spacing);
.alert-heading {
font: mat.get-theme-typography($theme, "headline-6");
}
.alert-footer {
font: mat.get-theme-typography($theme, "caption");
}
}
}
@mixin theme($theme) {
@include color($theme);
@include typography($theme);
}
```
With above changes, you component should work fine. If you want to know more about the changes, keep reading on, else jump to [next section](#checking-all-the-changes-for-m2).
#### Reading color values
If you look at the code, we are using `get-color-config` function, but it is removed now. And with it `get-color-from-palette` function is also removed.
So, now to get any color from theme, we have to use `get-theme-color`. You can read about it at [here](https://material.angular.io/guide/material-2-theming#reading-color-values).
#### Identifying the current theme
We also can't use `map.get($theme, is-dark)` anymore. There is a new function to identify the type of theme: `mat.get-theme-type($theme)`. This function takes a single argument, the theme, and returns either `light` or `dark`.
#### Reading typography values
`mat.font-family` and `mat.typography-level` are also removed.
There is a new function called `get-theme-typography`, you can read more about it [here](https://material.angular.io/guide/material-2-theming#reading-typography-values).
### Checking all the changes for M2
After making all the changes, you should be good to run the project without any errors. You can also take a look at all the changes needed for keeping M2 support with Angular Material 18 at the the PR: [feat: keeping m2 support with angular material 18](https://github.com/Angular-Material-Dev/course-md-ng-my-app/pull/1/files).
## Adding Support for Material 3 (M3)
If you want to add support for M3 with Angular Material 18, simply follow guidelines from [Theming Angular Material](https://material.angular.io/guide/theming). Angular Material team has already given in-depth guidelines about it.
The changes needed to add support for M3 with Angular Material 18 for the project can be viewed at the commit on GitHub: [feat: add support for M3 with angular material 18](https://github.com/Angular-Material-Dev/course-md-ng-my-app/commit/e39cd37595d6e38ca3f6023b2c928c60a7a0a0c8).
## Support Free Content Creation
Even though the courses and articles are available at no cost, your support in my endeavor to deliver top-notch educational content would be highly valued. Your decision to contribute aids me in persistently improving the course, creating additional resources, and maintaining the accessibility of these materials for all. I'm grateful for your consideration to contribute and make a meaningful difference!
[](https://github.com/sponsors/shhdharmen)
## Conclusion
We started with cloning the existing repo with Angular Material 17 from one my other courses. Then we looked at updates needed by running `ng update` command. And then we ran `ng update @angular/cli@18` and `ng update @angular/material@18` in sequence.
We started with keeping support for M2. We learned that what functions are removed and what we can use instead of them. And at last we saw how to add support for M3 with Angular Material 18.
Below is the quick summary:
| Index | Applies to | Old | Change for M2 | Change for M3 |
| ----- | ----------------------------- | -------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1 | Typography | `define-typography-config` | [`m2-define-typography-config`](https://material.angular.io/guide/material-2-theming#typography-config) | [Part of `define-theme`](https://material.angular.io/guide/theming#customizing-your-typography) |
| 2 | Typography | `define-typography-level` | [`m2-define-typography-level`](https://material.angular.io/guide/material-2-theming#define-a-level) | [`get-theme-typography`](https://material.angular.io/guide/theming-your-components#reading-typescale-properties) |
| 3 | Color palettes | `define-palette` | [`m2-define-palette`](https://material.angular.io/guide/material-2-theming#:~:text=warn%20palette.%20The-,m2%2Ddefine%2Dpalette,-Sass%20function%20accepts) | SASS Map, can be generated using [Material 3 Theme schematic](https://material.angular.io/guide/schematics#material-3-theme-schematic) |
| 4 | Color palettes | `$indigo-palette` | [`$m2-indigo-palette`](https://material.angular.io/guide/material-2-theming#predefined-palettes), [All Palettes](https://m1.material.io/style/color.html#color-color-palette) | `$azure-palette`, [All Palettes](https://material.angular.io/guide/theming#pre-built-themes) |
| 5 | Theming | `define-light-theme` | [`m2-define-light-theme`](https://material.angular.io/guide/material-2-theming#defining-a-theme) | [`define-theme`](https://material.angular.io/guide/theming#defining-a-theme) |
| 6 | Theming | `define-dark-theme` | [`m2-define-dark-theme`](https://material.angular.io/guide/material-2-theming#defining-a-theme) | [`define-theme`](https://material.angular.io/guide/theming#defining-a-theme) |
| 7 | Reading color values | `get-color-config` | Removed | Removed |
| 8 | Reading color values | `get-color-from-palette` | [`get-theme-color`](https://material.angular.io/guide/material-2-theming#reading-color-values) | `get-theme-color`, [Reading tonal palette colors](https://material.angular.io/guide/theming-your-components#reading-tonal-palette-colors), [Reading color roles](https://material.angular.io/guide/theming-your-components#reading-color-roles) |
| 9 | Identifying the current theme | `map.get($theme, is-dark)` | [`get-theme-type`](https://material.angular.io/guide/material-2-theming#reading-color-values:~:text=can%20use%20the-,get%2Dtheme%2Dtype,-Sass%20function%20to) | [`get-theme-type`](https://material.angular.io/guide/theming-your-components#reading-the-theme-type) |
| 10 | Reading typography values | `font-family` | Removed | Removed |
| 11 | Reading typography values | `typography-level` | [`get-theme-typography`](https://material.angular.io/guide/material-2-theming#reading-typography-values) | [`get-theme-typography`](https://material.angular.io/guide/theming-your-components#reading-typescale-properties) |
| 12 | Reading density values | `get-theme-density` | *No change* [`get-theme-density`](https://material.angular.io/guide/material-2-theming#reading-density-values) | *No change* [`get-theme-density`](https://material.angular.io/guide/theming-your-components#reading-the-density-scale) |
## Codes
Codes and changes are available as below:
| Index | Branch | Angular Material Version | Material Design version | PR/Commit |
| ----- | ----------------------------------------------------------------------------------------------------------------- | ------------------------ | ----------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| 1 | [main](https://github.com/Angular-Material-Dev/course-md-ng-my-app) | 18 | 3 | [e39cd37](https://github.com/Angular-Material-Dev/course-md-ng-my-app/commit/e39cd37595d6e38ca3f6023b2c928c60a7a0a0c8) |
| 2 | [angular-material-18-m2](https://github.com/Angular-Material-Dev/course-md-ng-my-app/tree/angular-material-18-m2) | 18 | 2 | [PR#1](https://github.com/Angular-Material-Dev/course-md-ng-my-app/pull/1) |
| 3 | [angular-material-17](https://github.com/Angular-Material-Dev/course-md-ng-my-app/tree/angular-material-17) | 17 | 2 | -- |
| shhdharmen |
1,864,746 | HOW TO CREATE A WINDOW SERVER WITH IIS,FIREWALL,AND ASG INSTALLED | sTEP 1. Create a vm YOu can click on the link below on how to create a... | 0 | 2024-05-25T09:54:01 | https://dev.to/shaloversal123/how-to-create-a-window-server-with-iisfirewalland-asg-installed-4ahh | sTEP 1. Create a vm
YOu can click on the link below on how to create a Vm
https://dev.to/shaloversal123/how-to-create-window-11-pro-virtual-machine-2h2e
Select Webserver as Image.
Select RDP in the inbound port
Allow your resource group to load under Vm network page before proceeding.
NExt managemnet
Next Monitoring
Next Advance
Click review and create
**HOW TO CONNECT YOUR Vm**
Click on connect on the webserver created
Download RDP protocol
Input the Password Then
Click Connect
Click Add role and features
Next to server selection
Under server role click on webserver IIS
Click add features
NExt to Role Service
Click IIS 6management
Next to INstall
NB; Installation takes few minutes.
HOW TO CREATE APPLICATION SECUTRITY GROUP
Search for ASG on the azure portal
click create on the top page
Fill your information
Give suitable name to the ASG
NB:Ensure that you should thesame region for your work when creating it
Review and Create
Click create a successful Validation passed.
**HOW TO ADD INBOUND RULE**
Go your resource group
Click to open the default nsg
Click +Add at the top of the network page
Select Inbound security group
click add to add rule
Tick the following
Source -any
Destination Application security group-Select ASG that you created
Destination Port ranges: Input 80,443
Protocol-Any
Action-Allow
Priority-100
Select Add group
HOW TO ATTACHE NEW RULE TO THE SERVER
click on the VM
click to open the server using the Downladed RDP and Password
click Application Security group
Click Add ASG
Once done Success page will show up
HOW TO CREATE AND INSTALL FIREWALL TO THE WEBSERVER
Go to the marketplace
search for firewall
click create
select subcription/Resource group
Select PRemium For SKU
Create a suitable firewall policy
Create a new public IP for your Firewall
Create VNet-Subnet
NB: ALLOW deployment to complete.
steps to attach the Firewall to the server
Go to vm
Click server
IN server page click virtual network
Click firewall to see if its attached successfully.
| shaloversal123 | |
1,863,589 | 12 Benefits Of Learning Python 🐍 | 🦜 : Why should i learn python? 🦉 : Python provides many useful features which make it popular and... | 0 | 2024-05-25T12:16:24 | https://dev.to/developedbyjk/12-benefits-of-learning-python-k1h | python, learning, benefits, webdev | 🦜 : Why should i learn python?
🦉 : Python provides many useful features which make it popular and valuable from the other programming languages.
---
**(1) Easy to Learn and Use 📚**
Python is simple to learn with straightforward syntax resembling English. No semicolons or curly brackets; indentation defines code blocks. It's perfect for beginners!
---
**(2) Expressive Language ✍️**
Python can handle complex tasks with minimal code. For example, print("Hello World") takes just one line, unlike Java or C which need multiple lines.
---
**(3) Interpreted Language 🔍**
Python executes one line at a time, making debugging easy and the language portable.
---
**(4) Cross-platform Language 🌐**
Python runs on Windows, Linux, UNIX, and macOS, making it highly portable. Write once, run anywhere!
---
**(5) Free and Open Source 💸**
Python is free and open-source, available at www.python.org. A large global community contributes to its modules and functions.
---
**(6) Object-Oriented Language 🧩**
Python supports object-oriented concepts like classes, inheritance, polymorphism, and encapsulation, promoting reusable code and efficient application development.
---
**(7) Extensible 🔗**
Python code can be compiled with languages like C/C++ and used within Python programs, making it versatile and powerful.
---
**(8) Large Standard Library 📚**
Python boasts a vast library collection for machine learning (TensorFlow, Pandas, Numpy), web development (Django, Flask), and more.
---
**(9) GUI Programming Support 🖥️**
Libraries like PyQT5, Tkinter, and Kivy facilitate the development of desktop applications with graphical user interfaces.
---
**(10) Integrated 🧬**
Python integrates seamlessly with languages like C, C++, and Java, running code line by line and simplifying debugging.
---
**(11) Embeddable 🔄**
Code from other programming languages can be embedded in Python, and vice versa, allowing for flexible code integration.
---
**(12) Dynamic Memory Allocation 📦**
No need to specify variable data types; Python automatically allocates memory at runtime, simplifying code writing. For example, just write x = 15.
| developedbyjk |
1,864,833 | Generate a Laravel CRUD (Create, Read, Update, Delete) in 5 minutes. | Are you building your App on Laravel? That's a great choice🎉. You must be planning an Admin panel for... | 0 | 2024-05-25T12:13:14 | https://backpackforlaravel.com/articles/getting-started/generate-crud-create-read-update-delete-in-laravel-in-5-minutes | laravel, tutorial, php, development | Are you building your App on Laravel? That's a great choice🎉. You must be planning an **Admin panel** for it. Well, if you're building one, let me give an overview of how you can make a customizable & functional Admin panel with **less effort**.
Admin Panels are made of [CRUDs](https://backpackforlaravel.com/docs/6.x/getting-started-basics#whats-a-crud), [Charts](https://backpackforlaravel.com/docs/6.x/base-widgets#chart-pro), and [Widgets](https://backpackforlaravel.com/docs/6.x/base-widgets). The major component is the CRUD, which is built with various fields and columns. I'm writing this article about a package that will help you generate **Laravel CRUDs** in just 5 minutes.
## Installation.
We'll be using [https://backpackforlaravel.com](https://backpackforlaravel.com) to generate Laravel CRUDs. You can experience a Monster CRUD in the [live demo](https://demo.backpackforlaravel.com/admin/monster) and be more confident in giving it a shot. So, are you ready?
Let's install it now:
1. Go to your Laravel project's directory, then in your terminal, run:
```shell
composer require backpack/crud
```
2. Follow the prompts - in the end, the installer will also tell you your admin panel's URL, where you should go and login.
```shell
php artisan backpack:install
```
> Note: Make sure the `APP_URL` in your .env file is correctly pointing to the URL you use to access your application in the browser, for example: `http:127.0.0.1:8000` or [`http://something.test`](http://something.test)
If you are facing trouble, check the [installation](https://backpackforlaravel.com/docs/6.x/installation) page for help!
### Laravel CRUD with a single command
To generate Laravel CRUD, we need a table.
1. Let's assume we have the `tags` table. You can copy the following migration to make one.
```php
Schema::create('tags', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('slug')->unique();
$table->timestamps();
});
```
2. Now, We'll run the following command to generate CRUD:
```bash
php artisan backpack:crud tag # use singular, not plural (like the Model name)
```
The code above will generate the following:
* a model (`app/Models/Tag.php`);
* a controller (`app/Http/Controllers/Admin/TagCrudController.php`);
* a request (`app/Http/Requests/TagCrudRequest.php`);
* a resource route, as a line inside `routes/backpack/custom.php`;
* a new menu item in `resources/views/vendor/backpack/ui/inc/menu_items.blade.php`;
Done! Go to https://localhost/admin/tag to see your Laravel CRUD in action.
### CRUD Customization
We'll go through the generated files and customize them per project needs. Majorly customization includes:
* **Field** types for Create & Update Form.
* **Columns** types for List & Show.
Let's look at the generated Controller `TagCrudController.php` and add Fields & Columns:
```diff
<?php
...
use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
class TagCrudController extends CrudController
{
...
protected function setupListOperation()
{
+ CRUD::column('name')->type(text);
+ CRUD::column('slug')->type(text);
}
protected function setupCreateOperation()
{
CRUD::setValidation(TagRequest::class);
+ CRUD::field('name')->type(text);
+ CRUD::field('slug')->type(text);
}
...
}
```
This less gets you a fully working CRUD:
#### Available Fields & Columns
Backpack includes a variety of FREE [Fields](https://backpackforlaravel.com/docs/6.x/crud-fields) & [Columns](https://backpackforlaravel.com/docs/6.x/crud-columns) and some eye-catching PRO Fields(single addon) for complex project needs:
| FREE Fields | | PRO Fields | |
| --- | --- | --- | --- |
| checkbox | checklist | address\_google | browse |
| checklist\_dependency | color | browse\_multiple | base64\_image |
| custom\_html | date | ckeditor | date\_range |
| datetime | email | date\_picker | datetime\_picker |
| enum | Database ENUM | dropzone | easymde |
| PHP enum | hidden | google\_map | icon\_picker |
| month | number | image | phone |
| password | radio | relationship | repeatable |
| select (1-n) | select\_grouped | select2 (1-n) | select2\_multiple (n-n) |
| select\_multiple (n-n) | select\_from\_array | select2\_nested | select2\_grouped |
| summernote | switch | select\_and\_order | select2\_from\_array |
| text | textarea | select2\_from\_ajax | select2\_from\_ajax\_multiple |
| time | upload | slug | table |
| upload\_multiple | url | tinymce | video |
| view | week | wysiwyg | |
You are also free to make one if not counted above. It's just a [command](https://backpackforlaravel.com/docs/6.x/crud-fields#creating-a-custom-field-type-1) away.
### CRUD Addons
Backpack also has many CRUDs and addons ready to use, which you can find [here](https://backpackforlaravel.com/addons). It includes **SettingsCRUD**, **MenuCRUD**, **NewsCRUD**, **User, Role & Permissions CRUD**, and many other useful admin panel features.
If you are wondering🤔 how to inject JS to backpack fields to show/hide on the client side, check out [CrudField JavaScript Library](https://backpackforlaravel.com/docs/6.x/crud-fields-javascript-api). Backpack is a robust package that stops you nowhere.
### Conclusion
[Laravel](https://laravel.com/) is excellent at building #PHP applications, and [Backpack](https://backpackforlaravel.com/) is excellent at building Laravel CRUDs & Admin Panel. Check out the wide variety of [fields & columns](https://backpackforlaravel.com/docs/6.x/crud-fields) it offers.
Give it a try, and experience generating Laravel CRUDs in 5 minutes. You'll never go back -- because we're all lazy😝. For more info, visit Backpack's FREE [CRUD Crash Course](https://backpackforlaravel.com/docs/6.x/crud-tutorial). | karandatwani92 |
1,864,831 | thampibook | Step into a realm where trust is not just a word but a way of life! Our book is synonymous with... | 0 | 2024-05-25T12:10:47 | https://dev.to/thampibook/thampibook-29pn | Step into a realm where trust is not just a word but a way of life! Our book is synonymous with reliability, offering punters a safe haven to indulge in their favorite games. With a focus on customer satisfaction and lightning-fast withdrawals, we ensure every player feels valued and respected.Best Book [Thampi Book](https://thampibook.com/) | thampibook | |
1,864,830 | Generating Taproot Wallet Address using bitcoinjs-lib | Taproot wallet address generation using Node.js. const ecc = require('tiny-secp256k1') const {... | 0 | 2024-05-25T12:07:21 | https://dev.to/pagarevijayy/generating-taproot-wallet-address-using-bitcoinjs-lib-54f4 | bitcoinjs, taprootwallletaddress, javascript, bitcoin | Taproot wallet address generation using Node.js.
```
const ecc = require('tiny-secp256k1')
const { BIP32Factory } = require('bip32')
const bip32 = BIP32Factory(ecc)
const bip39 = require('bip39')
const bitcoin = require('bitcoinjs-lib')
const path = `m/86'/0'/0'/0/0`; // Path to first child of receiving wallet on first account
bitcoin.initEccLib(ecc);
let mnemonic = bip39.generateMnemonic()
const seed = bip39.mnemonicToSeedSync(mnemonic)
let rootKey = bip32.fromSeed(seed)
const childNode = rootKey.derivePath(path);
let node = childNode.derive(0).derive(0);
const toXOnly = pubKey => (pubKey.length === 32 ? pubKey : pubKey.slice(1, 33));
const childNodeXOnlyPubkey = toXOnly(childNode.publicKey);
const internalPubkey = childNodeXOnlyPubkey;
const { address, output } = bitcoin.payments.p2tr({
internalPubkey
});
console.log(`
Wallet generated:
- Taproot Address: ${address},
- Key: ${node.toWIF()},
- Mnemonic: ${mnemonic}
`)
```
[Reference](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/taproot.spec.ts) | [Code on Github](https://github.com/pagarevijayy/web3-dojo/blob/main/btc-wallet/createTaprootWallet.js )
| pagarevijayy |
1,864,829 | We need to slow down, Everything is going too fast | Last year, when GPT was released AI was trending in the market. However, I landed a remote... | 0 | 2024-05-25T12:01:35 | https://dev.to/shreyvijayvargiya/we-need-to-slow-down-everything-is-going-too-fast-db4 | watercooler, news, beginners, productivity | Last year, when GPT was released AI was trending in the market.
However, I landed a remote opportunity in the Web3 domain, developing wallet apps for web3 users.
Web3 was still trending and new or latest technology in the market but we have AI or so-called GPT models.
ChatGPT just makes our life either too miserable or too good or easy, I am not sure because instead of enjoying free time in the world we humans are working more and more.
Product Hunt is filled with many apps, websites, and tools already being developed.
Twitter is bombarded with people launching their apps and websites.
- GoogleI/O was last week
- ChatGPT launched GPT 4–o this month
- Canva have new releases this week
- Vercel and React released new versions
a lot is going on in technology
Developers are working overtime!!
Solo developers are worrying and consistently learning they have no time to rest, how want to rest in 2024?
Does anyone feel like this is going too fast, technology is often going all-time high development rate and there is no sign of abating.
Last year, I was reading Web3 and Blockchain, working on cool technology and today it seems like an outdated one.
Just forget the technology, Youtube videos, Twitter tweets, Movies, shows, and launches all become outdated within a week.
We are not in the state to remember or cherish anything for more than a week.
## We don’t Sprint in a Marathon
I believe Simon Sinek was right, we are playing the infinite game instead of the Finite game, ofcourse we all have limited time but most of us have more than an average of 20+ years of working.
When it comes to running a marathon we don't need to sprint we should save energy instead and focus on completing a marathon.
The 100m race needs a sprint and for that small amount one can easily sprint but doing the same in the marathon is the devastating idea that 90% of people tried and failed.
We can’t blame a single person for this situation, is ChainGPT the culprit, or is Google Gemini the reason behind such a fast-paced working industry?
It’s a rather more complex interconnected cause-effect problem, the problem emerges somewhere effect somewhere else.
People not accepting this fast-paced industry standard will be and are getting abashed so we can’t blame ourselves for accepting these standards we have no other choice.
Developers are getting frustrated, burnouts are more common nowadays, it will happen because of the way we are working,
The current mindset of working standards creates an inevitable burnout for devs and managers across the globe.
I love technology and frontend and AI and Web3 and I love writing code but the competition is so fierce that if I miss anything it leads to FOMO, burnout, leaving behind syndrome and so on.
Twitter sometimes gives me insecurity because people are doing so much in such a short time.
Somedays I feel to shut down YouTube and Twitter but a few hours down the line, I feel like I am missing something important, it’s a Trap.
This all doesn’t seem good in the long run, I am worried about where the next generation sees themselves, so much to learn or nothing to learn at all.
People are anyways getting divided into extreme categories, normal is not so normal anymore, One wants to develop fast and the other just wants a medium pace lifestyle a more balanced one.
I believe we should not force everyone to become a fast-paced, high-trending working employee, we should accept that some or more people might love the balanced lifestyle.
It’s been 5 months without travelling and just working and working, I don’t have any complaints because now I’ve learned how to cope up with burnout and frustration.
Stop running so fast guys nothing makes sense to me, good things take time, and you simply can’t build a Rome in one day using AI.
Take care of yourself and simply enjoy it.
Remember, in the end, we all gonna die one day so who cares, F** off to all one day, here I am enjoying a good Saturday.
Cheers
Shrey | shreyvijayvargiya |
1,864,828 | Top 40+ QA Testing Companies in 2024 [Top Ranked QA Companies] | As businesses increasingly rely on software solutions, the demand for quality assurance (QA) testing... | 0 | 2024-05-25T12:01:03 | https://dev.to/ray_parker01/top-40-qa-testing-companies-in-2024-top-ranked-qa-companies-b6p | ---
title: Top 40+ QA Testing Companies in 2024 [Top Ranked QA Companies]
published: true
---
As businesses increasingly rely on software solutions, the demand for quality assurance (QA) testing companies has surged. Here's a look at the top 40+ QA testing companies in 2024, their services, clients, and where they are headquartered.
<h2>Here is the list of top QA testing companies</h2>
<h3>1. <a href="https://www.qamentor.com/">QA Mentor</a></h3>
QA Mentor stands out for its award-winning testing services and broad global presence. They offer over 30 QA testing services and unique products tailored to specific industry needs.
<b>Services:</b> Test Automation, QA Audit and Process Improvement, Test Plan Development, QA Outsourcing.
<b>Clients:</b> Citibank, HSBC, Sony.
<b>Headquarter Location:</b> New York City, New York, USA.
<h3>2. <a href="https://qalified.com/">QAlified</a></h3>
QAlified is a software testing and quality assurance leader, ensuring high-quality software solutions with comprehensive testing services. They focus on minimizing risks and improving software performance.
<b>Services:</b> Functional, Performance, Security, Automation, and Usability Testing.
<b>Headquarter Location:</b> Montevideo, Uruguay.
<h3>3. Cigniti Technologies</h3>
Cigniti Technologies is recognized globally for its software testing and quality engineering services. They are dedicated to helping businesses accelerate their digital transformation initiatives through robust QA practices.
<b>Services:</b> Digital Assurance, Quality Engineering, Advisory & Transformation, Next-Gen Testing.
<b>Clients:</b> Southwest Airlines, Wyndham Hotels & Resorts, Lenovo.
<b>Headquarter Location:</b> Hyderabad, India.
<h3>4. Abstracta</h3>
Abstracta is a software testing company with deep expertise in performance and automation testing, helping companies ensure the scalability and reliability of their applications.
<b>Services:</b> Automation Testing, Performance Testing, DevOps Consulting, Accessibility Testing.
<b>Clients:</b> BBVA, Shutterfly, Benefit Cosmetics.
<b>Headquarter Location:</b> San Francisco, California, USA.
<h3>5. QASource</h3>
QASource specializes in high-quality QA services, blending the latest testing technologies with expert resources to cater to specific client needs, focusing on reducing time to market and improving software quality.
<b>Services:</b> API Testing, Mobile and Web Application Testing, QA Analysis, Automated Testing.
<b>Clients:</b> Facebook, Oracle, eBay.
<b>Headquarter Location:</b> Pleasanton, California, USA.
<h3>6. Applause</h3>
Applause provides a comprehensive suite of testing services, leveraging a global community of expert testers to deliver real-world feedback on digital quality.
<b>Services:</b> Crowdtesting, UX Testing, Functional Testing, Payment Testing.
<b>Clients:</b> Google, Uber, Fox.
<b>Headquarter Location:</b> Framingham, Massachusetts, USA.
<h3>7. TestFort</h3>
TestFort is known for its tailored testing solutions and meticulous attention to detail, helping clients achieve reliable and robust software products.
<b>Services:</b> Manual Testing, Automated Testing, Web Application Testing, Mobile App Testing.
<b>Clients:</b> Skype, DHL, HuffPost.
<b>Headquarter Location:</b> Lviv, Ukraine.
<h3>8. TestingXperts</h3>
TestingXperts specializes in next-gen continuous testing services that incorporate AI and machine learning to ensure higher efficiency and accuracy.
<b>Services:</b> Continuous Testing, DevOps Testing, AI Testing, Security Testing.
<b>Clients:</b> Aetna, Panera Bread, Gate Gourmet.
<b>Headquarter Location:</b> Mechanicsburg, Pennsylvania, USA.
<h3>9. Global App Testing</h3>
Focusing on speed and agility, Global App Testing enables companies to deploy their products faster by providing on-demand access to QA professionals worldwide.
<b>Services:</b> Exploratory Testing, Test Case Execution, Regression Testing, Load Testing.
<b>Clients:</b> Facebook, Microsoft, Spotify.
<b>Headquarter Location:</b> London, United Kingdom.
<h3>10. LogiGear</h3>
LogiGear provides customized testing solutions that support the development lifecycle, emphasizing modern methodologies like Agile and Test Automation.
<b>Services:</b> Test Automation Solutions, Software Testing, Continuous Testing, API Testing.
<b>Clients:</b> Adobe, Cisco, Samsung.
<b>Headquarter Location:</b> Silicon Valley, California, USA.
<h3>11. Testlio</h3>
Testlio merges expert testers with powerful testing software, specializing in mobile and web application testing. Their networked testing model allows them to mobilize and scale their services for client needs quickly.
<b>Services:</b> Mobile Testing, Functional Testing, Usability Testing, Localization Testing.
<b>Clients:</b> Amazon, Microsoft, CBS Interactive.
<b>Headquarter Location:</b> Austin, Texas, USA.
<h3>12. ThinkSys</h3>
ThinkSys delivers cost-effective and scalable testing services, leveraging cloud environments and automation to ensure high-quality software deployment.
<b>Services:</b> Performance Testing, Regression Testing, Cloud Testing, Security Testing.
<b>Clients:</b> Oracle, Intel, Prudential.
<b>Headquarter Location:</b> Sunnyvale, California, USA.
<h3>13. ImpactQA</h3>
ImpactQA provides holistic QA services, focusing on new-age technologies and solutions to drive digital excellence and software robustness.
<b>Services:</b> IoT Testing, Blockchain Testing, Cybersecurity Testing, Performance Testing.
<b>Clients:</b> Panasonic, Terex, UNICEF.
<b>Headquarter Location:</b> New York City, New York, USA.
<h3>14. Codoid</h3>
Codoid stands out for its innovative approach to software testing, delivering exceptional QA and software testing services that ensure product integrity.
<b>Services:</b> ETL Testing, Mobile QA, Game Testing, VR Testing.
<b>Clients:</b> Vodafone, Honeywell, Medlife.
<b>Headquarter Location:</b> Chennai, India.
<h3>15. Kualitatem</h3>
Kualitatem is renowned for its impeccable software testing and cybersecurity services, delivering enhanced efficiency and security to client operations.
<b>Services:</b> Information Security, Independent Software Testing, IT Audits, and Quality Assurance.
<b>Headquarter Location:</b> Lahore, Pakistan.
<h3>16. Invensis Inc</h3>
Invensis is a global IT-BPO, that delivers innovative and scalable technology solutions to enhance business efficiency and growth.
<b>Services:</b> IT Services, Call Center Services, Data Entry Services, e-Commerce Support, Finance and Accounting.
<b>Headquarter Location:</b> Wilmington, Delaware, USA.
<h3>17. QA Wolf</h3>
QA Wolf revolutionizes the testing process by providing a no-setup, fully managed testing service that creates and runs end-to-end tests for web applications.
<b>Services:</b> End-to-End Testing, Continuous Testing, Integration Testing, Bug Tracking.
<b>Clients:</b> Startup tech companies, mid-sized software firms.
<b>Headquarter Location:</b> Seattle, Washington, USA.
<h3>18. TestMatick</h3>
TestMatick is known for its client-centric approach and high-quality testing services across web, mobile, and desktop applications.
<b>Services:</b> Quality Assurance Testing, Automated Testing, Mobile App Testing, Security Audits.
<b>Clients:</b> Small to medium-sized enterprises, Health and Education sectors.
<b>Headquarter Location:</b> New York City, New York, USA.
<h3>19. A1QA</h3>
A1QA delivers full-cycle testing services focusing on comprehensive solutions for enterprise clients, helping them ensure software reliability and performance.
<b>Services:</b> Full-cycle QA, Software Audit, Test Automation, Performance Testing.
<b>Clients:</b> Adidas, Kaspersky Lab, Telekom Austria Group.
<b>Headquarter Location:</b> Lakewood, Colorado, USA.
<h3>20. TestCrew</h3>
TestCrew is a leading testing and quality assurance service provider, specializing in comprehensive solutions that enhance software reliability and user satisfaction.
<b>Services:</b> Functional Testing, Automation Testing, Usability Testing, Performance Testing.
<b>Headquarter Location:</b> Jeddah, Saudi Arabia.
<h3>22. Aspire Systems</h3>
Aspire Systems has a philosophy of enhancing customer satisfaction through innovative testing methodologies and tools that ensure product quality.
<b>Services:</b> Functional Testing, Automation Testing, Performance Testing, Oracle EBS Testing.
<b>Clients:</b> Retail businesses, Tech startups, Financial institutions.
<b>Headquarter Location:</b> Chennai, India.
<h3>23. DeviQA</h3>
DeviQA is recognized for its attention to detail and a strong commitment to delivering flawless software products through rigorous testing protocols.
<b>Services:</b> Automated Testing, Mobile App Testing, Web Testing, Load and Performance Testing.
<b>Clients:</b> Technology firms, Media agencies, and E-commerce platforms.
<b>Headquarter Location:</b> Kyiv, Ukraine.
<h3>24. Testrig Technologies</h3>
Testrig Technologies is a prominent QA industry leader known for its innovative solutions and tailored approach to each client’s needs.
<b>Services:</b> Cloud Testing, Security Testing, Usability Testing, Selenium Testing.
<b>Clients:</b> Government agencies, Healthcare providers, IT companies.
<b>Headquarter Location:</b> Pune, India.
<h3>25. Oxagile</h3>
Oxagile leverages cutting-edge technologies and seasoned expertise to deliver end-to-end testing services that drive client success in digital landscapes.
<b>Services:</b> Manual Testing, Automated Testing, Custom Testing Solutions, QA Consultation.
<b>Clients:</b> Media conglomerates, Sports networks, Advertising firms.
<b>Headquarter Location:</b> New York City, New York, USA.
<h3>26. QualityLogic</h3>
QualityLogic fosters a culture of continuous improvement and innovation in QA testing, delivering services that ensure clients' products meet the highest standards.
<b>Services:</b> API Testing, Functional Testing, Smart Grid Solutions, IoT Testing.
<b>Clients:</b> Energy companies, Tech startups, and Telecommunication firms.
<b>Headquarter Location:</b> Boise, Idaho, USA.
<h3>27. OnPath Testing</h3>
OnPath Testing is dedicated to helping clients navigate the complexities of software testing with comprehensive services tailored to specific industry needs.
<b>Services:</b> Automation Testing, Manual Testing, Mobile Testing, ERP Testing.
<b>Clients:</b> Financial services, Healthcare applications, Education platforms.
<b>Headquarter Location:</b> Denver, Colorado, USA.
<h3>28. Planit Testing</h3>
Planit Testing integrates modern testing techniques and tools to offer top-notch QA services, ensuring that clients receive both efficient and effective testing outcomes.
<b>Services:</b> Functional Testing, Automation Testing, Performance Testing, Cybersecurity Testing.
<b>Clients:</b> Banking institutions, Retail chains, and Government agencies.
<b>Headquarter Location:</b> Sydney, Australia.
<h3>29. HikeQA</h3>
HikeQA stands out in the QA industry for its comprehensive testing services, ensuring superior software quality and performance with a client-centric approach.
<b>Services:</b> Manual Testing, Automation Testing, Mobile App Testing, Web Testing.
<b>Headquarter Location:</b> Noida, India.
<h3>30. SkyTesters</h3>
SkyTesters emphasizes user-centric testing services, specializing in mobile and web applications to ensure optimal functionality and user satisfaction.
<b>Services:</b> Mobile Testing, Usability Testing, Security Testing, Performance Testing.
<b>Clients:</b> Mobile app startups, E-commerce platforms, Enterprise software.
<b>Headquarter Location:</b> New Delhi, India.
<h3>31. Levi9</h3>
Levi9 is known for its technological prowess and customer-focused approach, delivering QA services that support agile development and digital transformation.
<b>Services:</b> End-to-End Testing, Automation Solutions, DevOps Integration, Cloud Testing.
<b>Clients:</b> Tech startups, Multinational corporations, and Digital service providers.
<b>Headquarter Location:</b> Amsterdam, Netherlands.
<h3>32. TestDevLab</h3>
TestDevLab provides robust software testing and engineering solutions to ensure high-quality products. Their focus is on reliability and innovation.
<b>Services:</b> QA Testing, Network Testing, Voice Quality Testing, Software Development.
<b>Headquarter Location:</b> Riga, Latvia.
<h3>33. Testbytes</h3>
Testbytes offers tailored testing solutions crafted to meet each project's unique challenges, ensuring high-quality software products through rigorous QA processes.
<b>Services:</b> Game Testing, Security Auditing, Mobile App Testing, Software Testing Consultancy.
<b>Clients:</b> Gaming studios, Security software firms, Mobile app developers.
<b>Headquarter Location:</b> Pune, India.
<h3>34. Codified Security</h3>
Codified Security stands out for its specialized focus on mobile app security testing, protecting clients against potential vulnerabilities and threats.
<b>Services:</b> Mobile Application Security Testing, Code Review, Threat Identification, Compliance Testing.
<b>Clients:</b> Financial institutions, Healthcare providers, Tech startups.
<b>Headquarter Location:</b> London, United Kingdom.
<h3>35. Perfecto by Perforce</h3>
Perfecto specializes in cloud-based web, mobile, and IoT testing environments that enable developers and testers to evaluate applications under real-world conditions.
<b>Services:</b> Continuous Testing, Mobile and Web Automation, Performance Testing, Security Testing.
<b>Clients:</b> Banks, Retail companies, Telecom operators.
<b>Headquarter Location:</b> Minneapolis, Minnesota, USA.
<h3>36. ScienceSoft</h3>
ScienceSoft offers extensive IT consulting and software development expertise, delivering tailor-made solutions to optimize business processes and technology strategies.
<b>Services:</b> Custom Software Development, IT Consulting, Cybersecurity, QA, and DevOps.
<b>Headquarter Location:</b> McKinney, Texas, USA.
<h3>37. QualityWorks Consulting Group</h3>
QualityWorks Consulting Group is renowned for its comprehensive approach to software testing and quality assurance. With a focus on agile methodologies and continuous integration, they help clients enhance product performance and speed to market.
<b>Services:</b> Automation Testing, Manual Testing, Performance Testing, Security Testing.
<b>Clients:</b> Startups, Fortune 500 companies in technology and finance.
<b>Headquarter Location:</b> Los Angeles, California, USA.
<h3>38. XBOSoft</h3>
XBOSoft elevates software quality across various platforms through deep expertise in QA and comprehensive testing services.
<b>Services:</b> Software Quality Consulting, Mobile Testing, Agile QA, Healthcare Software Testing.
<b>Clients:</b> Software and tech companies, Healthcare providers, and Financial Services.
<b>Headquarter Location:</b> San Francisco, California, USA.
<h3>39. Testhouse Ltd</h3>
Testhouse Ltd focuses on enhancing software applications' reliability, performance, and security through advanced testing methodologies and tools.
<b>Services:</b> DevOps Testing, Managed Testing Services, Digital Assurance, Accessibility Testing.
<b>Clients:</b> Government entities, Educational institutions, Enterprise clients.
<b>Headquarter Location:</b> London, United Kingdom.
<h3>40. QAwerk</h3>
QAwerk is dedicated to uncovering bugs and ensuring software reliability through its meticulous and detail-oriented testing processes.
<b>Services:</b> Bug Hunting, Documentation Testing, Usability Testing, Compliance Testing.
<b>Clients:</b> Startups, Media agencies, E-commerce platforms.
<b>Headquarter Location:</b> Kyiv, Ukraine.
<h3>41. Checkmarx</h3>
Known for its leadership in software security, Checkmarx offers robust testing solutions that focus on static and dynamic code analysis to prevent security breaches.
<b>Services:</b> Static Application Security Testing (SAST), Software Composition Analysis, Application Security Testing, Interactive Application Security Testing.
<b>Clients:</b> Software developers, IT security agencies, Large corporations.
<b>Headquarter Location:</b> Ramat Gan, Israel.
<h3>Conclusion</h3>
In conclusion, the QA testing landscape in 2024 is diverse and vibrant, with each company bringing its unique strengths and specialties to the table. From comprehensive service offerings and innovative testing solutions to global outreach and esteemed client lists, these 41 companies represent the pinnacle of quality assurance. Whether you're a startup looking for agile testing solutions or a large enterprise needing rigorous compliance testing, the <a href="https://www.iqvis.com/blog/trending-best-software-testing-companies/">QA testing companies</a> listed provide the expertise and technology to ensure your software meets the highest standards of quality and reliability. As the digital landscape continues to evolve, partnering with a top-tier QA testing company is more crucial than ever to maintain a competitive edge and deliver exceptional user experiences.
<b>Note: If you want to list your company on this post then please contact on this email address readdive@gmail.com</b>
tags:
# QA Testing Companies
# Software Testing Companies
# List of QA Testing Vendors
# Software Testing Services
# Quality Assurance Testing
# QA Companies
---
| ray_parker01 | |
1,847,950 | Next.js e Vercel: Otimizando Aplicações para Produção | Introdução Next.js é um framework React popular que oferece funcionalidades como... | 27,692 | 2024-05-25T11:51:24 | https://dev.to/vitorrios1001/nextjs-e-vercel-otimizando-aplicacoes-para-producao-378j | vercel, nextjs, react, productivity | ## Introdução
Next.js é um framework React popular que oferece funcionalidades como renderização no lado do servidor (SSR) e geração de sites estáticos (SSG). Quando hospedado na Vercel, uma plataforma de cloud especificamente otimizada para aplicações Next.js, os desenvolvedores podem aproveitar diversas ferramentas e otimizações para maximizar a performance e a eficiência. Este artigo fornece um guia detalhado sobre como otimizar aplicações Next.js na Vercel, abordando caching, pre-renderização e o uso de Edge Functions.
## Otimizando com Caching
### 1. **Caching na Borda (Edge Caching)**
Vercel oferece caching na borda, o que significa que o conteúdo estático e as páginas SSR são cacheadas nos pontos de presença global. Isso reduz a latência e melhora a velocidade de carregamento ao servir o conteúdo mais próximo fisicamente do usuário.
**Implementação:**
- Use cabeçalhos HTTP para controlar o cache. Por exemplo, `Cache-Control` pode ser configurado para `s-maxage` para definir quanto tempo uma página deve ser cacheada na CDN.
- Para páginas dinâmicas que requerem dados frescos, utilize uma estratégia de invalidação de cache ou defina `s-maxage` para um valor baixo.
### 2. **Cache no Navegador**
Além do edge caching, configurar o cache no navegador para arquivos estáticos (CSS, JS, imagens) pode reduzir a quantidade de dados que o usuário precisa baixar em visitas repetidas.
**Implementação:**
- Configure o `Cache-Control` em arquivos estáticos para usar `max-age` e potencialmente `immutable` se os arquivos não mudarem entre builds.
## Utilizando Pre-renderização
### 1. **Static Site Generation (SSG)**
Next.js permite que você gere páginas estáticas durante a build. Essas páginas podem ser servidas imediatamente, melhorando a performance e a experiência do usuário.
**Implementação:**
- Use `getStaticProps` para buscar dados durante a build e `getStaticPaths` se você tem páginas dinâmicas que podem ser pré-renderizadas com diferentes parâmetros.
### 2. **Incremental Static Regeneration (ISR)**
ISR permite que você atualize páginas estáticas sem precisar reconstruir toda a aplicação. Isso é ideal para conteúdo que muda frequentemente, mas ainda assim pode ser servido como estático.
**Implementação:**
- Adicione a opção `revalidate` em `getStaticProps` para especificar com que frequência a página deve ser regenerada.
## Implementando Edge Functions
Edge Functions permitem executar código na borda, mais próximo do usuário, antes que a requisição chegue ao servidor principal ou ao navegador. Elas são úteis para personalização em tempo real e tarefas que precisam de baixa latência.
**Implementação:**
- Use o `middleware.js` no Next.js para executar código nas Edge Functions. Este arquivo permite interceptar requisições e modificar respostas ou redirecionar usuários baseado em geolocalização ou headers de dispositivo.
### Exemplo de uso de Edge Function:
```javascript
import { NextResponse } from 'next/server';
export function middleware(request) {
const country = request.geo.country || 'US';
if (country !== 'US') {
return NextResponse.redirect('/non-us');
}
return NextResponse.next();
}
```
## Benefícios e Considerações
A combinação de Next.js e Vercel oferece uma série de benefícios:
- **Performance:** Carregamento mais rápido das páginas devido ao caching eficiente e à entrega de conteúdo mais próxima ao usuário.
- **Escalabilidade:** Facilidade em escalar aplicações devido à infraestrutura gerenciada e às otimizações automáticas.
- **Desenvolvimento simplificado:** Menos preocupações com a infraestrutura e mais foco no desenvolvimento de funcionalidades.
Comparando com outras abordagens de hospedagem e frameworks, a integração Next.js e Vercel se destaca pela otimização automática e pelo suporte específico ao framework.
## Conclusão
Otimizar aplicações Next.js hospedadas na Vercel envolve aproveitar ao máximo os recursos de caching, pre-renderização e Edge Functions. Implementar essas estratégias não apenas melhora a velocidade e a experiência do usuário, mas também simplifica o processo de desenvolvimento, permitindo que desenvolvedores se concentrem em criar funcionalidades ricas e interfaces envolventes. Com a configuração correta, Next.js e Vercel podem oferecer uma solução poderosa para desenvolver aplicações web modernas e de alto desempenho. | vitorrios1001 |
1,864,827 | Prometheus: Unable to access the Prometheus from browser | I have done with configuration of Prometheus on my ubuntu machine but unable to access it via... | 0 | 2024-05-25T11:48:46 | https://dev.to/anil_gupta_8c14d017c93304/prometheus-unable-to-access-the-prometheus-from-browser-1li2 | prometheus, kubernetes, docker | I have done with configuration of Prometheus on my ubuntu machine but unable to access it via browser. - PODS and services are working for Prometheus.
I tried accessing the Prometheus using following ways unfortunately nothing work for me:
1. localhost:9090
2. 172.31.37.100:9090 [Static IP of ubuntu machine]
3. 172.19.33.206:9090 [Default IP of ubuntu machine]
I am not sure what need to be done to make it work. Request you all to please suggest. | anil_gupta_8c14d017c93304 |
1,864,826 | Best online fantasy game | Betting id cricket Ensuring fair play is crucial not only for the enjoyment of gamers but also for... | 0 | 2024-05-25T11:47:25 | https://dev.to/mandeep_chahal_529ed4507e/best-online-fantasy-game-48bh | bettingidcricket | [Betting id cricket](https://bestonlinecricketid.online/betting-id-cricket/) Ensuring fair play is crucial not only for the enjoyment of gamers but also for the credibility and sustainability of gaming platforms. This article explores the best practices for promoting fair play in online gaming and highlights some of the top platforms that prioritize fairness. | mandeep_chahal_529ed4507e |
1,864,736 | Desert Camp in Jaisalmer | The golden dunes of the Thar Desert evoke a sense of mystery and Best Adventure Activities in... | 0 | 2024-05-25T09:24:14 | https://dev.to/camp_injaisalmer_0a70bdb/desert-camp-in-jaisalmer-1kb | The golden dunes of the Thar [Desert](https://campinjaisalmer.in/desert-camp-in-jaisalmer.html) evoke a sense of mystery and Best Adventure Activities in Jaisalmer. As the sun sets over the rippling sand sea, the desert comes alive. Imagine yourself sitting under a canopy of stars, warmed by a crackling bonfire, entertained by traditional Kalbeliya dances, and enjoying a delicious home-cooked Rajasthani meal. A night at a desert camp in Jaisalmer is an experience you will cherish forever.
When planning your trip to Jaisalmer Rajasthan, a stay at Bhatt Desert Camp Jaisalmer. Bhatt Desert Camp offer a glimpse into the rich culture and heritage of the desert state while allowing you to reconnect with nature. Wake up to the sounds of chirping birds, go to camel safari, jeep safari,parasailing in jaisalmer and stargaze at night—there are endless ways to discover the beauty of the golden desert from your desert camp in jaisalmer with Bhatt Desert Camp. Escape the hustle and bustle of city life and head to the sand dunes of Jaisalmer for a magical desert holiday with Bhatt Desert Camp.
Bhatt Desert Camp provides desert camp in Jaisalmer with all comfort. Choose us for the best camps at affordable prices with world-class amenities.
Bhatt Desert Camp refers to a popular accommodation option in Jaisalmer, Rajasthan. Jaisalmer is known for its magnificent sand dunes and the Thar Desert, which attract numerous tourists from around the world.
Experience the Thrill of the Desert at the Best Luxury Camp in Jaisalmer?
You've always dreamed of experiencing the magic of the desert. Vast seas of rippling sand dunes, vibrant cultural experiences, and stunning sunrises and sunsets Now is the time to make that dream a reality with an unforgettable luxury desert experience in Jaisalmer, the heart of Rajasthan's Thar desert. Forget the usual tourist traps and immerse yourself in the beauty and adventure of the desert with a stay at the top-notch Bhatt Desert Camp. This Relais & Châteaux property will sweep you into a flipside world with its striking architecture, lavish amenities, and impeccable service. Whether you want to soak in the scenic eyeful on a sunset camel safari, learn culinary secrets in a cooking matriculation, or stargaze at night with an astronomer, Bhatt Desert Zany curates memorable experiences for a taste of pure Rajasthani culture and hospitality. Let the golden sand dunes and vibrant festivals ignite your senses for an escape you'll cherish forever. The magic of the desert is calling; it's time for you to answer.
Desert Camp in Jaisalmer
The best desert camp in Jaisalmer is the perfect way to experience the thrill of the desert while still enjoying creature comforts. Surrounded by sand dunes and open skies, you feel a world away from it all.
Stargaze at Night in Jaisalmer
The desert comes alive at night. Billions of stars light up the inky black sky, unobscured by city lights. Curl up by a crackling bonfire, listen to traditional Rajasthani music, and stargaze. You may even spot a shooting star! Bhatt Desert Camp offers telescopes for viewing celestial objects up close.
Explore the Dunes of Jaisalmer.
Venture out to the golden sand dunes in the morning or late afternoon. Slide, roll, and run down the dunes, your laughter echoing across the desert. Or take a camel safari, jeep safari, or paramotoring tour of the desert, watching the sun set over the dunes.
Facilities
* Air conditioning
* Air Fan Luxury Camp
* Telephone
* 24 Hours running Hot & Cold Water
* Laundry facilities on request
* Astrologist/Palmist & Doctor on call
* Massage on call
* Money Exchange & Travel Desk
* Folk Dances
* Local sight seen
* Travel Service – Tour Package, Car rental
* Arrival Transfer from Railway station & Airport | camp_injaisalmer_0a70bdb | |
1,864,825 | The Car Game (Cube.net) [BETA] | This is a Fast Paced Game. Where You Are A Cube. I'm Not Telling Everything Go Check The Game Out To... | 0 | 2024-05-25T11:47:17 | https://dev.to/abdul_hussain_13998d5fcc8/the-car-game-cubenet-beta-2jff | codepen | <p>This is a Fast Paced Game. Where You Are A Cube. I'm Not Telling Everything Go Check The Game Out To Find Out More... Make Red Cubes Touch Green Ones To kill Red Cubes. The Score System is Broken:( I can't Get An Idea Leave Your Awesome Ideas In Comments So I can Update This More often. Comment If You Find Any Bug I will Fix it ASAP. 10 Likes For A HUGE Update :D Enjoy The
Game Now. Thankyou For Testing BETA Version. Select Car Color And Click Play To Start :) [This Game Currently Supports Mobile]</p>
{% codepen https://codepen.io/EclipseXlazer/pen/NWVxQqG %} | abdul_hussain_13998d5fcc8 |
1,864,823 | Beyond Docker: Exploring Buildah and Podman for Container workflows | Containers have emerged as a game-changer in application development and deployment. Their... | 0 | 2024-05-25T11:41:18 | https://dev.to/ahmadmohey/beyond-docker-exploring-buildah-and-podman-for-container-workflows-3lnk | docker, podman, buildah, container | Containers have emerged as a game-changer in application development and deployment. Their lightweight, portable, and self-contained nature has streamlined workflows and fostered a more agile development environment.
his article will introduce you to three key players in the containerization world: Docker, Buildah, and Podman.
Docker is like the godfather of containerization. It's the most popular tool (around 80% of market share), offering a complete toolkit for building, running, sharing, and deploying containerized applications. It's user-friendly, making it a great starting point for beginners.
Due to its extensive features and robust ecosystem, Docker remains the industry standard for managing containerized applications in production environments. It provides additional features like image registries for sharing images, orchestration tools for managing multiple containers, and security features to enhance container security.
Buildah, on the other hand, is a lightweight tool built for efficiency. It focuses on crafting top-notch container images, giving you more control over what goes inside. This makes it a favorite for experienced users who want to keep their images lean and mean.
Some experienced users prefer Buildah because it empowers them to create lean and mean images, ensuring they only contain the essential components needed for the application to function. This focus on efficiency makes Buildah ideal for scenarios where image size and resource utilization are critical considerations, such as deploying containers on resource-constrained environments.
Finally, Podman is a powerful alternative to Docker. It works similarly, letting you run and manage containers, but without needing a background program running all the time. This makes it a good fit for Linux systems and those who prefer open-source options.
If you're looking for a robust container management tool that prioritizes open-source principles and efficiency, Podman might be the perfect fit for you. It integrates seamlessly with other open-source tools commonly used in Linux environments and provides a familiar command-line interface for users comfortable with the Linux ecosystem.
Here’s a brief comparison of Docker, Buildah, and Podman:
Now you have a better understanding of Docker, Buildah, and Podman, the key players in the containerization game. Choosing the right tool depends on your specific needs. If you're a beginner or need a comprehensive solution for all aspects of containerization, Docker might be a great fit. For building efficient images with more control, Buildah shines. And if you're an open-source enthusiast working on Linux, Podman offers a powerful and lightweight alternative for container management.
No matter which tool you choose, containers can revolutionize your development workflow by making your applications more portable and efficient. So, experiment, explore, and happy containerizing! | ahmadmohey |
1,864,822 | Level Up Your Dev Skills: Top AI Tools for 2024! | Calling all coders! Feeling overwhelmed by the ever-evolving world of development? AI is here to be... | 0 | 2024-05-25T11:39:05 | https://dev.to/futuristicgeeks/level-up-your-dev-skills-top-ai-tools-for-2024-25oe | webdev, ai, programming, developers | Calling all coders!
Feeling overwhelmed by the ever-evolving world of development?
AI is here to be your secret weapon!
FuturisticGeeks brings you the ultimate list of AI tools that will supercharge your workflow and make you a coding ninja.
Read more on our article: https://futuristicgeeks.com/level-up-your-dev-skills-top-ai-tools-for-2024/ | futuristicgeeks |
1,864,821 | Top 5 iPhone Cleaner Apps in 2024 | Does it feel sluggish and unresponsive when you try to take photos, open apps, or browse the web?... | 0 | 2024-05-25T11:36:29 | https://dev.to/nik_marron/top-5-iphone-cleaner-apps-in-2024-1oe7 | ios, ipad, mobile, top7 | Does it feel sluggish and unresponsive when you try to take photos, open apps, or browse the web? These are all signs that your iPhone's storage might be getting cluttered.
Keeping your iPhone optimized is essential for a smooth and enjoyable user experience. Fortunately, there are several iPhone cleaner apps available that can help you free up valuable storage space, improve your device's performance, and even extend battery life.
In this blog post, we'll explore the top 5 best iPhone cleaner apps in 2024. We'll discuss their key features, functionalities, and what makes them stand out. Whether you're looking for a general cleaner, a photo organiser, or a duplicate file finder, we've got you covered.
By the end of this guide, you'll be well-equipped to choose the right iPhone cleaner app to optimize your device and keep it running at its best.
## 1. [CleanMyPhone](https://apps.apple.com/in/app/cleanmy-phone-careful-cleaner/id1277110040)
CleanMyPhone is a powerful and versatile iPhone cleaner app developed by MacPaw. It goes beyond basic cleaning by offering a comprehensive suite of tools to optimize your iPhone's storage and performance.
With CleanMyPhone, you can:
- **Perform a deep clean**: Identify and remove large, unused files, temporary data, and system junk that can accumulate over time.
- **Manage apps effectively**: CleanMyPhone helps you uninstall unused apps and remove leftover app data that can hog storage space.
- **Optimize your photo library**: CleanMyPhone intelligently scans your photos and identifies blurry, similar, or duplicate images. You can then easily review and remove unwanted photos, freeing up significant storage space for new memories.
CleanMyPhone offers both a free and a paid version. The free version provides basic cleaning functionalities, while the paid version unlocks advanced features like deep cleaning, photo optimization, and system speed optimization.
## 2. [Express Cleaner Kit](https://apps.apple.com/us/app/express-cleaner-kit-clean-up/id1670270099)
If you're looking for a user-friendly and comprehensive way to clean up your iPhone and boost its performance, Express Cleaner Kit is a great option to consider. This app goes beyond basic junk file removal by offering a variety of features to help you optimize your device's storage and functionality.
Here's what makes Express Cleaner Kit stand out:
- **Free Up Space with Similar Photo & Video Detection:** Express Cleaner Kit utilizes advanced algorithms to identify similar photos, similar videos, and duplicate photos. This allows you to easily review and remove unwanted clutter, freeing up significant storage space on your iPhone.
- **Boost Performance**: By removing these unnecessary files, Express Cleaner Kit can help improve your phone's overall performance. With less clutter taking up space and resources, your device can run faster and smoother.
- **Enhanced Privacy with Secure Vault**: Express Cleaner Kit offers an additional layer of security by allowing you to create a private vault. This secure space lets you store sensitive photos and videos away from prying eyes, giving you peace of mind about your personal data.
- **Organize Your Contacts and Calendar**: Express Cleaner Kit helps you streamline your contact list by merging duplicates, removing unwanted contacts, and backing up your contacts to the cloud. Additionally, the app can help you declutter your calendar by eliminating outdated events, keeping you focused on what matters most.
- **Convenient Home Screen Widgets**: Express Cleaner Kit provides informative widgets that you can add to your Home Screen. These widgets keep you updated on your phone's storage availability, battery life, and contact information, all at a glance.
With its user-friendly interface, efficient cleaning features, and additional functionalities like the secure vault and organizational tools, Express Cleaner Kit is a well-rounded option for iPhone users seeking a comprehensive storage optimization solution.
## 3. [Phone Cleaner](https://apps.apple.com/us/app/phone-cleaner-for-iphone-ipad/id1343754771)
While some iPhone cleaner apps offer a general solution, Phone Cleaner by Nektony takes a more specialised approach. This app focuses specifically on helping you manage and optimise your iPhone's media files, particularly photos and videos.
Here's what makes Phone Cleaner stand out:
- **Media-focused cleaning**: Phone Cleaner excels at identifying and removing large or unwanted photos and videos that consume significant storage space.
- **Duplicate detection**: The app helps you find and eliminate duplicate media files, freeing up space you might not even realize is being wasted.
- **Easy management**: Phone Cleaner provides a user-friendly interface to preview and select unwanted media for deletion, making the cleaning process efficient and straightforward.
If your iPhone storage woes primarily stem from a cluttered photo and video library, Phone Cleaner by Nektony is a great option to consider. It can help you reclaim valuable storage space for new memories without the hassle of manually sorting through your media files.
## 4. [Cleaner Guru](https://apps.apple.com/us/app/cleaner-guru-cleaning-app/id1476380919)
For users who prioritize a simple and user-friendly experience, Cleaner Guru: Cleaning App is a noteworthy option. It offers a streamlined approach to iPhone cleaning, making it a good choice for those who want a quick and hassle-free way to optimize storage.
Here's what makes Cleaner Guru stand out:
- **One-Tap Smart Cleaning**: This convenient feature simplifies the cleaning process by automatically identifying and removing unwanted files like junk data, temporary files, and blurry photos.
- **Focus on User-Friendliness**: Cleaner Guru boasts a clear and intuitive interface, making it easy to navigate even for users unfamiliar with cleaning apps.
While Cleaner Guru might not offer the most in-depth cleaning functionalities compared to some other options, it excels in providing a user-friendly and efficient way to optimize your iPhone's storage. It's a great choice for those who prioritize a simple and straightforward cleaning experience.
## 5. [Boost Cleaner](https://apps.apple.com/us/app/boost-cleaner-clean-up-smart/id1475887456)
Boost Cleaner is a comprehensive iPhone cleaner app designed to tackle a wider range of storage-consuming elements.
Here's what Boost Cleaner offers:
- **Multi-faceted cleaning**: This app goes beyond basic junk file removal. It can identify and remove temporary files, app cache, and even tackle duplicate contacts that can eat up storage space.
- **Photo Management**: Boost Cleaner helps you manage your photo library by identifying large videos, blurry photos, or similar images. This allows you to free up space for the photos you truly cherish.
- **Potential Battery Optimization**: Some versions of Boost Cleaner might offer additional features like battery optimization tools, helping you extend your iPhone's battery life alongside storage optimization.
With its multi-faceted cleaning approach and potential for battery optimization, Boost Cleaner is a well-rounded option for users who want a comprehensive solution to optimize their iPhone's storage and performance.
## Choosing the Right iPhone Cleaner App for You
Now that we've explored some of the top iPhone cleaner apps in 2024, it's time to help you choose the one that best suits your needs. Here are some key factors to consider:
- **Specific Needs**: Do you need a general cleaner to tackle all types of junk files, or are you primarily focused on optimizing your photo library? Different apps excel in different areas.
- **Budget**: Many iPhone cleaner apps offer free versions with basic functionalities. Consider your budget and whether a paid version with advanced features is necessary.
- **Desired Features**: Think about the specific features you find most valuable. Do you prioritize a user-friendly interface like Express Cleaner Kit, deep cleaning functionalities, or media management tools?
Here's a quick recap to help you match your needs with the right app:
- **Deep & Fast Cleaning with User-Friendly Interface**: Express Cleaner Kit is a great choice for users who value a simple and intuitive interface alongside comprehensive cleaning functionalities. It tackles similar photos and videos, removes junk files, and even offers a secure vault for added privacy.
- **Deep Cleaning & Photo Optimization**: CleanMyPhone excels in deep cleaning and photo optimization, making it ideal for users who want to reclaim significant storage space.
- **Media Management & Duplicate Detection**: Phone Cleaner (by Nektony) is a strong option for those focused on optimizing their photo and video library, with features like duplicate detection and media management.
- **Streamlined Cleaning & User-Friendliness**: Cleaner Guru can be a suitable choice for users seeking a simpler and user-friendly cleaning experience.
- **Comprehensive Cleaning & Potential Battery Optimization**: Boost Cleaner offers a multi-faceted approach to cleaning, potentially including battery optimization, making it a well-rounded option for those seeking a comprehensive solution.
There's no single "best iPhone cleaner apps”. The best choice depends on your individual needs and preferences. By considering the factors mentioned above and exploring the features offered by each app, you can find the perfect tool to optimize your iPhone's storage and performance.
## Conclusion
Keeping your iPhone storage optimized is crucial for a smooth and enjoyable user experience. iPhone cleaner apps can be powerful tools to free up valuable space, improve performance, and even extend battery life.
In this blog post, we've explored some of the top iPhone cleaner apps available in 2024. We've discussed their functionalities, strengths, and how they can cater to different user needs.
The best iPhone cleaner app depends on your specific needs. Whether you prioritize a user-friendly interface like Express Cleaner Kit, deep cleaning functionalities, or media management tools, there's an app out there to help you optimize your iPhone.
Ready to take control of your iPhone's storage and performance? Explore the apps we've mentioned, consider the factors discussed, and choose the one that best suits your requirements. With the right iPhone cleaner app in your arsenal, you can ensure your device runs smoothly and efficiently for years to come. | nik_marron |
1,864,763 | Turbocharge Your Shaders: Performance Optimization Tips and Tricks | Shaders are the backbone of modern graphics rendering, responsible for creating stunning visuals in... | 0 | 2024-05-25T10:34:58 | https://dev.to/hayyanstudio/turbocharge-your-shaders-performance-optimization-tips-and-tricks-367h | shader, beginners, gamedev, glsl | Shaders are the backbone of modern graphics rendering, responsible for creating stunning visuals in games and applications. However, writing efficient shaders is crucial to avoid sluggish performance and ensure smooth, immersive experiences. Let’s dive into some fire-ship style tips and tricks to optimize your [shaders](https://glsl.site/tag/shader/) like a pro!
Understanding [shader performance](https://glsl.site/post/how-to-learn-shader-programming/) is essential before diving into optimization. Several factors impact shader performance, including ALU operations (arithmetic and logical operations performed by the shader), memory access (reading and writing to memory, including textures and buffers), control flow (branching and looping within shaders), and pipeline stages, where each stage ([vertex](https://glsl.site/post/understanding-vertex-shaders-unveiling-the-magic-behind-3d-graphics/), fragment, etc.) has unique performance characteristics.
Minimizing ALU operations is a critical first step. You should pre-compute constants outside the shader and avoid redundant calculations by calculating values once and reusing them. Simplifying math by using simpler operations, such as preferring multiplication over division, can also significantly boost performance. For example, instead of dividing by 2.0, multiply by 0.5, which is computationally cheaper.
Optimizing memory access can also make a huge difference. Reducing the number of texture lookups, using appropriate filtering modes like GL_NEAREST for non-blurred textures, and selecting efficient texture formats such as GL_RGBA8 instead of GL_RGBA32F can all contribute to better performance. Efficient data structures are also vital; ensuring data structures are aligned with the GPU’s memory architecture and using the smallest appropriate data types, like vec2 instead of vec4 when only two components are needed, can minimize memory overhead.
Control flow optimization is another crucial area. Minimize branching by using smooth step or mix functions instead of if-else statements and unroll loops where possible to avoid loop control overhead. For instance, replacing if-else structures with mix functions can streamline the shader code and improve execution speed.
Vertex shader optimization is essential since vertex shaders transform 3D models into 2D screen space. Reducing the vertex count by simplifying models, using instancing to reduce the overhead of drawing multiple objects with the same geometry, and optimizing transformations by combining multiple transformations into a single matrix multiplication can all enhance performance. Instead of performing multiple matrix multiplications for model, view, and projection transformations, pre-compute the MVP (Model-View-Projection) matrix for efficiency.
Fragment shaders, which determine the color of each pixel, require careful optimization to maintain real-time rendering performance. Minimizing overdraws by reducing overlapping geometry, optimizing lighting calculations by simplifying them or using precomputed light maps, and batching similar draw calls to reduce the overhead of state changes are all effective strategies. For instance, using precomputed lighting from light maps can significantly reduce the computational load compared to per-fragment lighting calculations.
In conclusion, optimizing shaders for performance involves reducing computational load, optimizing memory access, and efficiently managing control flow. By applying these fire-ship style tips and tricks, you can significantly enhance your shaders' performance. Always profile and test your shaders to identify bottlenecks and ensure that your optimizations lead to real performance gains.
[Read more over Here](https://glsl.site/) | hayyanstudio |
1,864,820 | Latest Newsletter: Simulation Theory and Virtual Worlds (Issue #165) | Virtual worlds, simulation theory, open source developer funding tools, compute as currency, bitcoin mining AI training hybrid facilities, AI pessimism, freedom, Etherium ETF and music website webdev | 0 | 2024-05-25T11:36:09 | https://dev.to/mjgs/latest-newsletter-simulation-theory-and-virtual-worlds-issue-165-7m8 | javascript, tech, webdev, discuss | ---
title: Latest Newsletter: Simulation Theory and Virtual Worlds (Issue #165)
published: true
description: Virtual worlds, simulation theory, open source developer funding tools, compute as currency, bitcoin mining AI training hybrid facilities, AI pessimism, freedom, Etherium ETF and music website webdev
tags: javascript, tech, webdev, discuss
---
Latest Newsletter: Simulation Theory and Virtual Worlds (Issue #165)
Virtual worlds, simulation theory, open source developer funding tools, compute as currency, bitcoin mining AI training hybrid facilities, AI pessimism, freedom, Etherium ETF and music website webdev
https://markjgsmith.substack.com/p/saturday-25th-may-2024-simulation
#javascript #tech #webdev
Would love to hear any comments and feedback you have.
[@markjgsmith](https://twitter.com/markjgsmith)
| mjgs |
1,862,714 | Generative Adversarial Network (GAN) | In the field of machine learning, there's all kinds of models and architecture proposed by... | 27,510 | 2024-05-25T11:34:16 | https://dev.to/adamazuddin/generative-adversarial-network-gan-1425 | machinelearning, algorithms, ai | In the field of machine learning, there's all kinds of models and architecture proposed by researchers around the world every year to solve a particular problem. One such model architecture are called Generative Adversarial Network, or GAN for short. Today we are going to dive into it and learn what is it, how it works, as well as it's application in the real world.
## What is it?
So first of all, I would assume you are familiar Convolutional Neural Network (CNN) because GAN is built on top of it with a little more modification to it. If you didn't know what CNN is yet, you can read my blog post series about it [here](https://dev.to/adamazuddin/series/27213)
So now that that's out of the way, let's dive into it. What does GAN stands for? It's Generative Adversarial Network. To put it simply, the network contain some adversarial or in other word competing part that generate something. So for there to be a competition there needs to be at least two people or things right? So in this context, the two things are the Generator Discriminator and Discriminator model.
## Discriminator
Let's start with the discriminator. Its main job is to differentiate fake data from real data. What does that mean? Suppose we're using a GAN to generate fake human faces. The discriminator's job is simple: it tells whether an image is a real human face or not. You can imagine the structure of this model similar to a normal CNN with a sigmoid function on the output layer that gives the probability that the image is a human face. Pretty simple, right?
## Generator
Now, the generator's job is to create fake images that it inputs into the discriminator to fool it. Returning to the human face example, the generator's role is to create fake human faces, starting from random noise and outputting an image to pass as input to the discriminator. Structurally, the generator is similar to a CNN that outputs pixel values of an image.
## Combining them together
First, we train the discriminator model. We train it with a combination of real and fake human face images, labeled so it can learn to differentiate them. It does this by extracting features of the images, like recognizing that human faces have two eyes and a nose. Once the discriminator gets good at its job, we start training the generator. Initially, the generator produces random images that don't look like faces at all. These images are passed to the discriminator, which correctly identifies them as fake.
Based on the results, the model that loses (incorrectly identifies or generates) updates itself to improve. For example, if the discriminator correctly identifies a fake face, the generator learns from this feedback and adjusts to produce more realistic faces. Conversely, if the discriminator mistakenly identifies a real face as fake, it updates itself to improve its accuracy. This process continues iteratively until the generator produces convincingly realistic images.
### Conclusion
That's the basic idea of GAN. There are many use cases of it, ranging from computer vision, natural language processing and even game development and virtual reality. In the next post though, we will see how GAN is implemented in the task of image super resolution using GAN, or SRGAN for short, based on a fairly new research paper on 2017. Until then, I hope you guys like the post and learn something from it. See you!
| adamazuddin |
1,864,818 | Dive in Spring framework - Beginner Guide | Many fresher want to get SDE role in big banks like Deutsche Bank, UBS, Barclays, HSBC, etc.. But... | 0 | 2024-05-25T11:28:50 | https://dev.to/nrj-21/shallow-dive-in-spring-framework-beginner-guide-20mn | programming, java, spring | Many fresher want to get SDE role in big banks like Deutsche Bank, UBS, Barclays, HSBC, etc.. But they don't know is that in every bank main tech stack is Spring.
So now let's shallow dive in Spring and Spring Boot.
Pre-requisite - Java basics with OOP's concepts.
So lets understand using basic example
**Creation of object as a normal Java with `new` keyword**
```
public class MyClass {
private String message;
public MyClass() {
this.message = "Hello, I'm created using the new keyword!";
}
public String getMessage() {
return message;
}
}
public class Main {
public static void main(String[] args) {
// Creating an instance of MyClass using the 'new' keyword
MyClass obj = new MyClass();
// Accessing the message
System.out.println(obj.getMessage());
}
}
```
**Object Creation using Spring:**
```
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class AppConfig {
@Bean
public MyClass myClass() {
return new MyClass();
}
}
public class Main {
public static void main(String[] args) {
// Creating Spring application context
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
// Retrieving bean from Spring context
MyClass obj = context.getBean(MyClass.class);
// Accessing the message
System.out.println(obj.getMessage());
// Closing Spring context
context.close();
}
}
```
Let's compare the two approaches:
**Using the new Keyword:**
In the first code snippet:
```
MyClass obj = new MyClass();
```
Here, an instance of MyClass is created directly within the main method using the new keyword. The MyClass constructor is invoked, setting the message field to a specific value. This approach is straightforward and doesn't involve any external dependencies or frameworks.
**Using Spring Dependency Injection:**
In the second code snippet:
```
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
MyClass obj = context.getBean(MyClass.class);
```
Here, the Spring Framework is used to manage the creation and initialization of the `MyClass `instance. In the `AppConfig `class, a method annotated with `@Bean` is defined to indicate that a bean of type MyClass should be created and managed by the Spring container. In the main method, an application context is created based on the configuration defined in `AppConfig`, and then the `MyClass `bean is retrieved from the context using `context.getBean(MyClass.class)`. This approach allows for loose coupling, easier unit testing, and better management of dependencies, especially in large-scale applications.
| nrj-21 |
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1,864,774 | Revolutionizing Healthcare The Surge of AI-Enabled Medical Devices | Introduction to AI-Enabled Medical Devices Understanding the Impact For the last few... | 0 | 2024-05-25T11:06:33 | https://dev.to/hourlydevelopers/revolutionizing-healthcare-the-surge-of-ai-enabled-medical-devices-2op | hireaideveloper, hireaimldevelopers | ## Introduction to AI-Enabled Medical Devices Understanding the Impact
For the last few years, AI-enabled medical devices have dominated the healthcare world, and this has become a fact. These state of the art technologies are powered by artificial intelligence that is used to change patient care, diagnosis and treatment. Through integrating sophisticated algorithms and machine learning capabilities into healthcare gadgets, doctors can now access real-time insights using personalized solutions more than ever before.
From wearable health trackers to diagnostic imaging tools, AI is changing how healthcare is practiced thus improving efficiency, accuracy and patient outcomes. However, like any technological advancement, understanding the impact of AI enabled medical devices also involves careful consideration of opportunities it presents as well as regulatory issues around data protection and ethical concerns.
## Advantages and Benefits How AI is Transforming Healthcare Delivery
The application of AI in medical devices has resulted in a number of advantages thereby altering the healthcare delivery landscape fundamentally. One of such benefits is that it increases efficiency in diagnosis and treatment due to capabilities for AI algorithms to analyze vast amounts of patient data very fast so as to identify patterns and make accurate predictions. Furthermore, AI-based medical devices enable tailored care by using insights derived from hard facts for individual patients’ needs.
Numerous advantages have been unlocked by integrating medical devices with AI and this has reshaped the healthcare sector forever.
**1] More Efficient:** AI makes use of algorithms that analyze a lot of patient information at a time to quickly spot trends and make accurate forecasts.
**2] Personalized Care:** Personalized treatment plans developed using data-driven insights improve patients’ states while mitigating errors risks at the same time.
**3] Reduced Administrative Burden:** Automation of repetitive tasks gives healthcare providers more space to attend to their patients directly instead.
**4] Better Diagnosis:** Early intervention and improved prognosis are achieved through the availability of AI assisted tools that offer precise and timely diagnosis.
**5] Remote Monitoring:** AI enables remote patient monitoring thereby allowing practitioners to keep track of how they’re doing at all times, intervening when necessary.
**6] Predictive Analytics:** AI algorithms can anticipate potential health problems before they manifest clinically, which allows for early interventions prior clinical signs or preventive measures establishment.
**7] Cost Savings:** By enhancing efficiency, reducing errors, and optimizing resource utilization such as in improving hospital supply chain; cost savings in healthcare provision is made possible through the use of AI-supported medical equipment.
This not only enhances the results enjoyed by patients but also reduces the rate at which errors happen and complications develop. Additionally, administrative tasks are streamlined by AI thus permitting more direct provision of healthcare services by health care givers. Thus, through automation of repetitive processes alongside enhancement of decision-making ability, AI is increasingly making healthcare accessible, affordable, and effective.
## Challenges and Limitations Addressing Concerns in Implementation
AI-powered medical devices possess incredible potential for transforming the healthcare industry. However, these devices also have some problems that must be addressed in order to make their utilization successful. For one, integrating them with existing health systems and technologies can be a major stumbling block, one that often necessitates complex integration processes. Similarly, ensuring the accuracy, dependability and safety of AI algorithms are fundamental to the preservation of trust and patient security.
In addition, ethical considerations about bias mitigation, informed consent and data privacy further obscure this implementation in healthcare. Government frameworks should adapt promptly so they keep pace with this fast-evolving area of AI technology while simultaneously seeking to promote innovation and protect patients’ interests. To fully leverage on AI-based medical devices in transforming healthcare provision as well as enhancing patient outcomes, all these concerns must be effectively handled
## Examples and Case Studies Real-World Applications of AI in Medical Devices
The medical section is one of the many areas that have experienced the most remarkable benefits of incorporating artificial intelligence into medical devices with innumerable practical applications. For instance, IBM Watson Health has diagnostic tools which are driven by AI and can analyze a lot of medical records to help clinicians diagnose more complex diseases at a faster pace and with higher accuracy.
**->** **IBM Watson Health:** For Diagnosis - IBM Watson Health evaluates medical information to support doctors in accurately and quickly diagnosing complicated diseases, thus improving diagnostic precision and efficiency.
**->** **Apple Watch:** Health Monitoring - With artificial intelligence algorithms, the Apple Watch can determine irregular heart rhythms, allowing users to keep tabs on their cardiac health as well as probably avoid severe cardiovascular occurrences.
**->** **da Vinci Surgical System:** Precise Surgery – The integration of artificial intelligence in surgical robots such as da Vinci Surgical System result in better surgical accuracy and control during minimal access operations leading to shorter recovery times and better surgical outcomes for patients.
**->** **DeepMind Health:** Patient Care Optimization - DeepMind Health’s AI solutions analyze patient data in order to provide treatment plan recommendations that are personalized with the end goal of optimizing patient care and may be reducing healthcare billings.
**->** **Proteus Discover:** Medication Adherence – The company was founded to develop the Proteus Discover system with artificial evolution capabilities of tracking ingestion of medication by means of swallowable sensors so as to provide physicians with adherence details in relation to patients as well as medication effectiveness hence promote enhanced outcomes.
Moreover, smart-watches like Apple Watch that come with some AI algorithms may identify irregular heartbeats for prevention of life-threatening cardiac events. Minimally invasive surgery procedures are facilitated by surgical robots such as da Vinci Surgical System thus enable use precision in operation through improved control delivered by AI making it possible to recover faster and achieve better health outcomes in patients. These instances highlight how this technology could transform healthcare delivery systems and provide more customized solutions while changing conventional practices within medicine towards greater efficiency.
## Regulatory Landscape Navigating Compliance and Ethical Considerations
Ensuring patient safety and data privacy is of utmost importance as the healthcare industry embraces the transformative capacity of AI-enabled medical devices. Therefore, a regulatory landscape has to be well navigated by embracing artificial intelligence (AI) enabled healthcare products to ensure patient safety and data privacy. The global regulatory bodies are then faced with the challenge of staying current with rapidly advancing technology while continuing to adhere to strict compliance standards. This further complicates matters given that ethical issues such as responsible use of patient information and algorithmic biases are also part of the regulation framework for AI enabled health technologies.
In order to promote trust among stakeholders and reduce potential risks associated with AI in healthcare, there is a need for balancing between innovation and regulation. Thus, it is important that we strike a balance between innovative ideas and rigorous laws so as to build confidence amongst stakeholders and ward off potential risks associated with artificial intelligence in medicine. To establish such a robust framework where adoption of AI-enabled medical devices can be done responsibly, joint efforts between policy makers, healthcare providers and technology developers should be directed towards protecting patients while at the same time making sure that immense gains from technology advances will be fully achieved in transforming healthcare delivery service.
## Future Outlook Predictions and Trends in AI-Enabled Healthcare Technologies
In the future, health care, and with further progress being made in AI-powered medical devices, will transform even more. Through forecasts and trends, it is indicated that there will be increased use of artificial intelligence across various aspects of healthcare in the future. More accurate and efficient patient treatment options are promised as AI moves from improved diagnostics to personalized therapy plans.
**a) Personal Medicine:** Individual patient characteristics will be employed by AI in the development of personalized treatment plans that can make treatments more effective, while at the same time minimize side effects.
**b) Predictive Analytics:** Proactive healthcare interventions will be supported by AI algorithms which would analyze massive hospital data for disease onset, progression and response to treatment.
**c) Virtual Health Assistants:** The increasing use of AI powered virtual health assistants will give patients personal health advice, remind them when to take medicine and offer virtual consultation.
**d) Remote Patient Monitoring:** AI-based wearable devices and remote monitoring technologies will enable continuous monitoring of patients outside traditional healthcare settings thus facilitating early detection of health conditions as well as timely intervention.
**e) Robotic Surgery:** The integration of artificial intelligence into surgical robots enhances accuracy in surgery and promotes autonomous surgery, thereby reducing human errors during surgical operations.
**f) Drug Discovery and Development:** Drug discovery process is going to experience a revolution with the introduction of AI. This technology is capable of accelerating identification time for potential drug candidates, optimizing clinical trials, and reducing development costs.
**g) Healthcare Resource Optimization:** Improved healthcare efficiency and cost-effectiveness could arise from such processes including optimized allocation of resources through the use of AI algorithms which can predict admission rates; schedule appointments while at the same time streamlining administrative procedures.
Additionally, there are expectations that wearable health techs and remote monitoring devices will become readily available for people, thus enabling them to take charge of their own health as a way of enhancing good health internationally. Nevertheless, these developments have given rise to new challenges including adapting to regulations, safeguarding data and ensuring fair access to AI-enabled medical solutions. To create an innovative healthcare ecosystem in the coming years that is also inclusive; therefore it is important to address these issues while maximizing the potentials of AI technologies.
## Conclusion
The rise of AI-assisted medical gadgets signals a dawn in medicine, assuring personalized attention, advanced predictions and better patient results. Taking up this technology is crucial in transforming healthcare provision.
**To Get a Free Quote for Your Project Visit US:** https://hourlydeveloper.io/get-a-quote | hourlydevelopers |
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1,864,778 | Crafting the Gallery Window Fashion Website: Overcoming Challenges and Embracing Future Goals | In the digital age, establishing an online presence is paramount for businesses aiming to reach a... | 0 | 2024-05-25T11:19:19 | https://dev.to/phoenryprime/crafting-the-gallery-window-fashion-website-overcoming-challenges-and-embracing-future-goals-52fi | In the digital age, establishing an online presence is paramount for businesses aiming to reach a broader audience and provide seamless customer experiences. Gallery Window Fashion, a Houston-based company specializing in custom window treatments, embarked on a journey to create a website that not only showcases their exquisite products but also reflects their commitment to personalized customer care and unique design.
**The Vision:**
At the core of [Gallery Window Fashion](https://www.gallerywindowfashion.com/) website creation journey was the vision to offer an immersive online platform where customers could explore a wide array of window treatment options and experience the essence of their brand ethos—quality, reliability, and world-class service. From elegant shutters to sophisticated motorized shades, the website aimed to encapsulate the essence of their craftsmanship and expertise.
**Navigating Challenges:**
Creating a website that seamlessly integrates aesthetic appeal with functionality presented several challenges for Gallery Window Fashion. One major obstacle was ensuring a smooth user experience across different devices and screen sizes. The team had to meticulously design and test the website to guarantee responsiveness and consistency, regardless of whether users accessed it from a desktop, tablet, or smartphone.
Moreover, incorporating features such as a product gallery, customer testimonials, and an intuitive navigation system required careful planning and implementation. Balancing the visual appeal with fast loading times and optimal performance was another challenge that the team had to address diligently.
**Technological Arsenal:**
To bring their vision to life, Gallery Window Fashion leveraged a combination of programming languages and technologies, including JavaScript, Python, and C++. JavaScript played a pivotal role in enhancing the website's interactivity and dynamic content, ensuring a seamless browsing experience for users. Python facilitated backend development, powering functionalities such as database management and server-side scripting. Additionally, C++ was utilized for specific tasks requiring high performance and efficiency, contributing to the overall robustness of the website.
**Future Aspirations:**
As Gallery Window Fashion's website continues to evolve, the company harbors ambitious goals for its digital presence. One of their primary objectives is to enhance personalization and customization features, allowing customers to tailor window treatments according to their unique preferences and requirements seamlessly.
Furthermore, the company aims to leverage advanced technologies such as artificial intelligence and machine learning to streamline processes, optimize product recommendations, and elevate the overall customer experience. By embracing innovation and staying abreast of emerging trends in web development, Gallery Window Fashion endeavors to maintain its position as Houston's premier destination for custom window treatments.
In conclusion, the creation of Gallery Window Fashion's website was a journey marked by challenges, creativity, and technological prowess. By overcoming obstacles and harnessing the power of programming languages like JavaScript, Python, and C++, the company succeeded in crafting a digital platform that embodies its values and aspirations. As they look towards the future, Gallery Window Fashion remains committed to pushing boundaries, delighting customers, and shaping the landscape of the window treatment industry through their online presence. | phoenryprime | |
1,864,776 | What are the historical highlights and major contributions of Midway Sports to the arcade gaming industry?" | Midway Games, originally known as Midway Manufacturing Company, was a major player in the arcade... | 0 | 2024-05-25T11:11:45 | https://dev.to/rose_fareya_2c3055a7e15eb/what-are-the-historical-highlights-and-major-contributions-of-midway-sports-to-the-arcade-gaming-industry-3nmd | Midway Games, originally known as Midway Manufacturing Company, was a major player in the arcade gaming industry, especially known for its contributions in the 1980s and 1990s. Although [Midway Sports](https://midwaysports.com/) is a term often associated with the sports games developed by Midway, the company’s influence spans a wide array of genres. Here are some historical highlights and key contributions of Midway Games, focusing particularly on their sports titles:
Historical Highlights
Founding and Early Years (1958-1970s):
1958: Midway Manufacturing Company was founded in 1958 as a manufacturer of amusement equipment.
1973: Midway entered the video game industry by licensing arcade games from Japanese companies, including the iconic "Space Invaders" from Taito.
1980s: The Golden Age of Arcade Games:
1980: Midway released "Pac-Man" in North America, which became a massive success and cultural phenomenon.
1981: "Ms. Pac-Man," developed by General Computer Corporation and released by Midway, further cemented the company’s reputation.
1982: Midway introduced "Tron," a game based on the Disney movie, which combined multiple gameplay styles.
| rose_fareya_2c3055a7e15eb | |
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Namun, penting untuk selalu memilih situs judi online yang terpercaya dan memiliki lisensi resmi agar pengalaman bermain tetap aman dan menyenangkan. Pastikan juga untuk memahami syarat dan ketentuan yang berlaku di situs tersebut sebelum melakukan transaksi. Dengan demikian, Anda dapat menikmati pengalaman bermain yang lebih baik dan mendapatkan kesempatan meraih keuntungan yang lebih besar. | yoviwib432 | |
1,864,773 | Exploring Next.js: Unraveling the Dynamics of Client-Side Rendering vs. Server-Side Rendering | In the realm of modern web development, the choice between Client-Side Rendering (CSR) and... | 0 | 2024-05-25T11:05:57 | https://dev.to/mubeensiddiqui_/exploring-nextjs-unraveling-the-dynamics-of-client-side-rendering-vs-server-side-rendering-5c6i | nextjs, webdev, javascript | In the realm of modern web development, the choice between Client-Side Rendering (CSR) and Server-Side Rendering (SSR) can significantly impact a project's performance, security, and overall user experience. As developers navigate through this decision-making process, understanding the nuances of each approach becomes paramount. Today, let's delve into the intricacies of CSR and SSR within the context of Next.js, shedding light on their comparative strengths and weaknesses.
**Client-Side Rendering: The Bundle Burden**
One of the inherent challenges of Client-Side Rendering lies in the bundling process. With CSR, the entire application, including all its components, must be bundled at once. Consequently, this leads to the generation of large bundles, which, when deployed to the client's browser, consume substantial memory resources. Such bloated bundles can impair the loading speed and responsiveness of the application, particularly on devices with limited capabilities.
Moreover, CSR presents hurdles in terms of Search Engine Optimization (SEO). Since the initial HTML page sent to the client's browser is devoid of meaningful content until JavaScript execution completes, search engine crawlers may struggle to index the page effectively. This limitation undermines the discoverability of CSR-based applications in search engine results.
Additionally, from a security standpoint, CSR poses concerns regarding the exposure of sensitive data. As all API keys and confidential information reside within the client-side codebase, they are susceptible to exploitation through malicious attacks or unauthorized access.
**Server-Side Rendering: Streamlining Performance and Security**
Contrary to CSR, Server-Side Rendering offers a more streamlined approach to content delivery. By generating HTML on the server and sending a fully rendered page to the client's browser, SSR minimizes the overhead associated with large client-side bundles. This results in quicker initial page loads and enhanced user experience, particularly on devices with limited computational resources.
Moreover, SSR inherently addresses SEO challenges by providing search engine crawlers with pre-rendered HTML content, thereby facilitating efficient indexing and improved search engine visibility.
From a security perspective, SSR exhibits advantages over CSR. Since sensitive data and API keys are handled on the server and never exposed to the client-side environment, SSR mitigates the risk of data breaches and unauthorized access.
**The Trade-Offs: Exploring SSR Limitations**
Despite its merits, Server-Side Rendering is not without limitations. One notable drawback is its inability to handle browser events such as clicks, changes, or submissions, as well as access browser APIs like local storage. Furthermore, SSR does not inherently support state management or side effects through hooks like useEffect, functionalities that are quintessential in modern web development.
**Navigating the Hybrid Approach**
In the quest for optimal performance, security, and user experience, many developers opt for a hybrid approach that combines the strengths of both CSR and SSR. Leveraging Next.js, developers can implement Client-Side Rendering for interactive components requiring dynamic updates while utilizing Server-Side Rendering for content with SEO significance or sensitive data handling.
In conclusion, the choice between Client-Side Rendering and Server-Side Rendering hinges on various factors, including performance requirements, SEO objectives, and security considerations. By understanding the nuances of each approach and strategically leveraging Next.js capabilities, developers can architect robust web applications that excel in both functionality and user experience. | mubeensiddiqui_ |
1,864,933 | 5 (More) Rust Project Ideas ~ For Beginners to Mid Devs 🦀 | Hey there, welcome back to my blog! 👋 If you're learning Rust and want to practice your skills I... | 0 | 2024-05-26T12:34:08 | https://eleftheriabatsou.hashnode.dev/5-more-rust-project-ideas-for-beginners-to-mid-devs | rust | ---
title: 5 (More) Rust Project Ideas ~ For Beginners to Mid Devs 🦀
published: true
date: 2024-05-25 11:03:08 UTC
tags: Rust
canonical_url: https://eleftheriabatsou.hashnode.dev/5-more-rust-project-ideas-for-beginners-to-mid-devs
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0bm879bs0wq7a2hipw47.jpeg
---
Hey there, welcome back to my blog! 👋
If you're learning Rust and want to practice your skills I want to introduce you to 5 (more) practical projects that will help you in real-world projects. I wrote three more similar articles, one for [**complete beginners**](https://dev.to/eleftheriabatsou/5-rust-project-ideas-for-absolutely-beginners-devs-2706), one [**for beginners**](https://dev.to/eleftheriabatsou/5-rust-project-ideas-for-beginner-devs-1am3) and one for [beginners to mid level](https://dev.to/eleftheriabatsou/5-rust-project-ideas-for-beginner-to-mid-devs-3de1). This article is also for beginner to mid Rust devs and the focus is on building games! 🎯
Below you'll find: the 5 project ideas, the posts (tweets) or articles where I'm explaining step-by-step how you can build these projects and a link to the corresponding GitHub repo!
## Project Idea 5: CLI Video Downloader
{% embed https://twitter.com/BatsouElef/status/1771839694105419980 %}
You can create a CLI video downloader and cover things such as parsing command-line arguments, making HTTP requests, and handling errors. By the end, you'll have a deeper understanding of Rust's powerful features and how to apply them in real-world scenarios.
Read my tutorial [here](https://dev.to/eleftheriabatsou/cli-video-downloader-in-rust-a-step-by-step-tutorial-132f).
{% embed https://dev.to/eleftheriabatsou/cli-video-downloader-in-rust-a-step-by-step-tutorial-132f %}
Check it on [**GitHub**](https://github.com/EleftheriaBatsou/cli-yt-downloader-rust/tree/main).
## Project Idea 4: Port Scanner
{% embed https://twitter.com/BatsouElef/status/1781277854711378230 %}
How about creating an IP sniffer/port sniffer! You'll learn how to build a basic network tool that can scan ports on a specified IP address to see which ones are open.
This is a practical project that can help you understand network programming, asynchronous Rust with Tokio, and handling command-line arguments using Bpaf. By the end, you will have a clearer insight into network operations and Rust's powerful asynchronous features.
Read my tutorial [here](https://dev.to/eleftheriabatsou/tutorial-building-a-port-scanner-in-rust-5fa0).
{% embed https://dev.to/eleftheriabatsou/tutorial-building-a-port-scanner-in-rust-5fa0 %}
Check it on [**GitHub**](https://github.com/EleftheriaBatsou/port-sniffer-cli-rust/tree/main).
## Project Idea 3: Snake Game
{% embed https://twitter.com/BatsouElef/status/1784178606752645130 %}
Let's start building some games! How about the "Snake Game"?! Well, I built it myself and I need to mention that it was not an easy task but in the end you'll learn a lot!
Read the 1st part of the tutorial [here](https://dev.to/eleftheriabatsou/tutorial-snake-game-in-rust-part-12-23gc) and the 2nd one [here](https://dev.to/eleftheriabatsou/tutorial-snake-game-in-rust-part-22-1khf).
{% embed https://dev.to/eleftheriabatsou/tutorial-snake-game-in-rust-part-22-1khf %}
Check it on [**GitHub**](https://github.com/EleftheriaBatsou/snake-game-rust).
## Project Idea 2: Chat Application
{% embed https://twitter.com/BatsouElef/status/1788949895014932776 %}
Chat applications are something many common and also many applications use. In the version that I built (and you can find a tutorial below), the application has two parts: 1. Client, 2.Server. You're able to type something on the client side and the server will receive it.
Read my tutorial [here](https://dev.to/eleftheriabatsou/tutorial-chat-application-client-server-in-rust-121f).
{% embed https://dev.to/eleftheriabatsou/tutorial-chat-application-client-server-in-rust-121f %}
Check it on [**GitHub**](https://github.com/EleftheriaBatsou/chat-app-client-server-rust/).
## Project Idea 1: Pong Game
{% embed https://twitter.com/BatsouElef/status/1791392429288898693 %}
How about building a Pong game using the [**piston engine**](https://docs.rs/piston/latest/piston/) as well as the [**OpenGL graphics library**](https://blog.logrocket.com/understanding-opengl-basics-rust/). You can create a board with 2 paddles, one on the left and one on the right side, and one ball. You can have 2 players who will be able to handle the left and the right paddles with Y and X keys and the up and down arrows.
Read my tutorial [here](https://dev.to/eleftheriabatsou/tutorial-pong-game-in-rust-4hkm).
{% embed https://dev.to/eleftheriabatsou/tutorial-pong-game-in-rust-4hkm %}
Check it on [**GitHub**](https://github.com/EleftheriaBatsou/pong-game-rust/tree/main).
* * *
## **Notes**
I'm new to Rust and I hope these small projects will help you get better and improve your skills. Check here [**part 1**](https://dev.to/eleftheriabatsou/5-rust-project-ideas-for-absolutely-beginners-devs-2706), [**part 2**](https://dev.to/eleftheriabatsou/5-rust-project-ideas-for-beginner-devs-1am3) **and** [**part 3**](https://dev.to/eleftheriabatsou/5-rust-project-ideas-for-beginner-to-mid-devs-3de1) of Rust project ideas and if you need more resources I'd also like to suggest [**Akhil Sharma**](https://www.youtube.com/@AkhilSharmaTech)'s and [Tensor's Programming](https://www.youtube.com/@TensorProgramming) YouTube Channels.
* * *
👋 Hello, I'm Eleftheria, **Community Manager,** developer, public speaker, and content creator.
🥰 If you liked this article, consider sharing it.
🔗 [**All links**](https://limey.io/batsouelef) | [**X**](https://twitter.com/BatsouElef) | [**LinkedIn**](https://www.linkedin.com/in/eleftheriabatsou/) | eleftheriabatsou |
1,864,772 | Elevate Your Skills: Software Testing Classes in Nagpur | In the ever-evolving landscape of software development, the significance of software testing cannot... | 0 | 2024-05-25T11:01:46 | https://dev.to/offpage_works_951885f68ac/elevate-your-skills-software-testing-classes-in-nagpur-2cc4 | In the ever-evolving landscape of software development, the significance of software testing cannot be overstated. Quality assurance and testing are indispensable components of the software development lifecycle, ensuring that applications meet the highest standards of reliability, functionality, and performance. With Softronix's expert-led Software Testing Classes in Nagpur, aspiring professionals can elevate their skills and embark on a rewarding career journey in the field of software testing. Designed to provide comprehensive training in testing methodologies, tools, and techniques, Softronix's classes empower participants to excel in Nagpur's thriving tech industry.
Software testing is a multifaceted discipline that encompasses various methodologies, techniques, and tools to identify and address defects in software applications. Mastery of software testing principles is essential for ensuring the quality and reliability of software products, making it a highly sought-after skill in the tech industry. Softronix's [Software Testing Classes in Nagpur](https://www.softronix.in/testing-training-in-nagpur) are meticulously designed to provide participants with a solid foundation in software testing concepts, methodologies, and best practices, equipping them with the knowledge and expertise needed to excel in the field.
At the core of Softronix's Software Testing Classes lies a comprehensive curriculum that covers the fundamentals of software testing, including manual testing techniques, automation testing frameworks, and quality assurance processes. Participants learn how to design test cases, execute test scenarios, and report defects using industry-standard testing tools and methodologies. Through a combination of interactive lectures, hands-on exercises, and real-world projects, students gain practical experience and confidence in their software testing skills, preparing them for success in the field.
Softronix's Software Testing Classes in Nagpur are led by a team of experienced instructors who bring a wealth of industry knowledge and expertise to the classroom. These instructors, passionate about software testing and quality assurance, provide personalized guidance and support to help students navigate complex testing concepts and methodologies. With a focus on practical, project-based learning, Softronix ensures that students not only understand theoretical concepts but also develop the critical thinking and problem-solving skills needed to excel as software testers.
Moreover, Softronix's Software Testing Classes in Nagpur offer flexible learning options to accommodate diverse student needs and preferences. Whether you prefer the structure of traditional classroom instruction or the flexibility of online learning, Softronix provides both options to ensure that you can pursue your software testing training in a way that fits your schedule and lifestyle. With state-of-the-art facilities and cutting-edge online learning platforms, Softronix delivers an immersive and interactive learning experience that prepares students for success in the fast-paced world of software testing.
Beyond technical skills, Softronix is committed to fostering a supportive learning community where students can collaborate, share ideas, and network with industry professionals. Through group projects, testing challenges, and networking events, participants have the opportunity to connect with peers, build relationships, and expand their professional network. Additionally, Softronix provides career guidance and placement assistance to help students transition smoothly into the workforce and pursue exciting career opportunities in the field of software testing.
In conclusion, Softronix's Software Testing Classes in Nagpur offer more than just education; they provide a pathway to success in the dynamic field of software testing. With its comprehensive curriculum, expert instructors, flexible learning options, and vibrant community, Softronix equips aspiring software testers with the tools and knowledge needed to excel in their testing journey and achieve success in Nagpur's thriving tech industry.
| offpage_works_951885f68ac | |
1,864,771 | Empower Your Coding Journey: Java Classes in Nagpur | In the vibrant city of Nagpur, where innovation meets ambition, Softronix stands as a beacon of... | 0 | 2024-05-25T11:00:58 | https://dev.to/offpage_works_951885f68ac/empower-your-coding-journey-java-classes-in-nagpur-19e4 | In the vibrant city of Nagpur, where innovation meets ambition, Softronix stands as a beacon of excellence in technical education, offering comprehensive [Java classes in Nagpur](https://www.softronix.in/java-training-in-nagpur). Aspiring programmers and IT enthusiasts seeking to embark on a transformative coding journey find themselves at the doorstep of opportunity with Softronix's expert-led courses. With a focus on empowering individuals with practical skills and industry-relevant knowledge, Softronix's Java classes in Nagpur provide the perfect platform to kickstart a successful career in software development.
Java, known for its versatility, reliability, and scalability, remains one of the most widely used programming languages in the world. Whether you're aspiring to become a software developer, web developer, or Android app developer, mastering Java opens doors to a myriad of career opportunities. Softronix recognizes the significance of Java in the IT landscape and offers tailored courses designed to equip learners with the essential skills needed to excel in this dynamic field.
At the core of Softronix's Java classes in Nagpur is a meticulously crafted curriculum that covers the fundamentals of Java programming along with advanced concepts and best practices. From mastering syntax and object-oriented programming principles to understanding data structures, algorithms, and design patterns, participants undergo a comprehensive learning journey that lays a solid foundation for their coding endeavors. Through a blend of theoretical lectures, hands-on coding exercises, and real-world projects, students gain practical experience and confidence in their programming abilities.
Softronix prides itself on its team of experienced instructors who bring a wealth of industry knowledge and expertise to the classroom. These instructors, passionate about teaching and mentoring, provide personalized guidance and support to help students overcome challenges and reach their full potential. Whether you're a beginner with no prior programming experience or an experienced coder looking to enhance your skills, Softronix's instructors cater to learners of all levels, ensuring that everyone receives the attention and assistance they need to succeed.
Moreover, Softronix's Java classes in Nagpur are designed to be flexible and accessible to accommodate diverse learning needs and preferences. With options for both classroom-based and online instruction, participants can choose the format that best suits their schedule and learning style. Whether you prefer the interactive environment of a physical classroom or the convenience of remote learning, Softronix ensures that you have the resources and support you need to excel in your Java journey.
Beyond the classroom, Softronix fosters a supportive learning community where students can collaborate, share ideas, and network with like-minded individuals. Through group projects, coding challenges, and networking events, participants have the opportunity to connect with peers, build relationships, and expand their professional network. Additionally, Softronix provides career guidance and placement assistance to help students transition smoothly into the workforce and pursue exciting career opportunities in the field of Java development.
In conclusion, Softronix's Java classes in Nagpur offer more than just education; they empower individuals to embark on a transformative coding journey that opens doors to endless possibilities in the world of software development. With its comprehensive curriculum, expert instructors, flexible learning options, and vibrant community, Softronix provides the perfect platform for aspiring programmers to hone their skills, unleash their creativity, and achieve success in the ever-evolving tech industry.
| offpage_works_951885f68ac | |
1,864,850 | How to Integrate your live SAP HR Data into M365 Copilot - Part 1 | here is only the half of the article available. Actually, there is no other word so popular as AI!... | 0 | 2024-05-25T17:20:14 | https://blog.bajonczak.com/how-to-integrate-you-sap-data-into-you-ai-model/ | sap, ai, githubcopilot, m365 | ---
title: How to Integrate your live SAP HR Data into M365 Copilot - Part 1
published: true
date: 2024-05-25 11:00:00 UTC
tags: SAP,AI, copilot, m365
canonical_url: https://blog.bajonczak.com/how-to-integrate-you-sap-data-into-you-ai-model/
---
 here is only the half of the article available.
Actually, there is no other word so popular as AI! On each Keynote, Conference, Talk, and so on I hear the same about this. So I tried to investigate some Usecases for me.
Sure you can read about this in my last posts about this topic. But now I want a business use case for now.
But before I start, let's make it clear. I will divide this article into more than one post. Why? Because it is a complex topic. It's hard to write down at once. But I try to write it clearly enough to follow. At the end of this series (of a maximum of 3 posts). You will get the complete source code to create your own copilot extension.
# The use case
So let's assume we have a list of employees who will work for a company as a consultant. So to get some work, the easiest way is to offer the consultants knowledge to a project on a project portal like gulp or s.th.
You can do this manually, but that takes more effort if your team will increase the amount of employees. So an AI solution is something like this:
1. The salesman will take the offer
2. It will ask the copilot for suggestions for employees
3. Copilot will look into the SAP HCM for possible employees
4. Copilot will send you a list of names with a matching score
5. Also it will gather a CV to send to
So let's get started
# How Microsoft Office 365 Copilot works
Before we can start, it is necessary to get an overview of how the Microsoft Copilot works.
_Source: https://learn.microsoft.com/de-de/microsoft-365-copilot/extensibility/ecosystem_
The first step is the Microsoft 365 copilot will be triggered via a command like "Hey! Where is the Order for Customer X?". The next step is that Copilot uses the graph API for using the pre-processing. It will look there for the data that will be required for the answer. (Please note, that it will only be the data that is only accessible for you!). Also, this process will combined with a grounding of the data. The data result will be sent to the Large Language Model (LLM). This LLM will analyze the incoming data, wire the single sources together, and try to combine the data (like customers and orders) in a semantic way. This will be sent back to the copilot and will do a post-processing or enrich additional data. At least it will result in the data back to the copilot and sending it to the caller itself.
So Copilot can have as a source not only the Microsoft Graph, in the picture below you see that you can have several data sources.
_source: https://learn.microsoft.com/de-de/microsoft-365-copilot/extensibility/_
# The Idea
So hey we now can try to identify which solution fits for us, but luckily Microsoft published a nice helper diagram to get the right choice of extension.
_source: https://learn.microsoft.com/de-de/microsoft-365-copilot/extensibility/_
In my case, I use a plugin. The knowledge will be available in the SAP System, so I need a skilled extension. For this, the diagram tells me that I need a Plugin. So we need a Plugin for Teams.
# Install Prerequisites
Before we can start, we need some requirements
- [Visual Studio Code](https://code.visualstudio.com/Download?ref=blog.bajonczak.com)
This will be your IDE. If you don't have it. Go get it! ;)
- [Teams](name:%20Teams%20Toolkit%20Id:%20TeamsDevApp.ms-teams-vscode-extension%20Description:%20Create,%20debug,%20and%20deploy%20Teams%20apps%20with%20Teams%20Toolkit%20Version:%205.8.0%20Publisher:%20Microsoft%20VS%20Marketplace%20Link:%20https://marketplace.visualstudio.com/items?itemName=TeamsDevApp.ms-teams-vscode-extension)Toolkit
This Visual Studio Code extension will allow you to create an extension (in various ways) for your Teams. **Please note that you must use the prerelease version**.
- Fun
Yep, you need some fun ;) | saschadev |
1,864,768 | What Not to Say to a Nurse Case Manager: Essential Tips for Effective Communication | In the intricate web of healthcare, nurse case managers stand as crucial liaisons between patients,... | 0 | 2024-05-25T10:42:53 | https://dev.to/today_intrend_6ec56a0dc9/what-not-to-say-to-a-nurse-case-manager-essential-tips-for-effective-communication-c1d | In the intricate web of healthcare, [nurse case managers](https://todayintrend.com/what-not-to-say-to-a-nurse-case-manager-tips-in-2022/) stand as crucial liaisons between patients, caregivers, and medical professionals. Their role involves orchestrating treatment plans, advocating for patient needs, and ensuring continuity of care. Building a productive relationship with a nurse case manager hinges on respectful and open communication. However, certain phrases and attitudes can hinder this process. Here's a guide on what not to say to a nurse case manager:
1. "This isn’t your concern."
Dismissively brushing off a nurse case manager's involvement undermines their role in your care journey. Embrace their support and expertise as valuable assets in navigating the healthcare system effectively.
2. "I'll just follow the doctor's orders."
While medical advice is vital, sidelining the insights and recommendations of a nurse case manager can overlook valuable support and resources they can offer beyond clinical directives.
3. "You don’t understand my situation."
Assuming a nurse case manager lacks understanding can create barriers to effective collaboration. Instead, provide them with comprehensive information to enhance their ability to assist you.
4. "I can manage on my own."
Resisting help from a nurse case manager may deprive you of beneficial services and support tailored to your needs. Embrace their assistance as part of your healthcare journey.
5. "This is taking too long."
Expressing impatience can add stress to an already complex process. Instead, inquire about the progress and explore ways to streamline the process collaboratively.
6. "I read about this treatment online."
While research is commendable, insisting on unverified treatments can complicate your care. Discuss your findings with your nurse case manager openly, allowing them to provide informed guidance.
7. "You're just a nurse."
Disregarding the expertise and contributions of a nurse case manager undermines their pivotal role in your care. Respect their qualifications and experience as integral members of your healthcare team.
8. "I don’t trust the healthcare system."
Expressing distrust can hinder effective communication and collaboration. Instead, address concerns constructively and work with your nurse case manager to find solutions within the system. | today_intrend_6ec56a0dc9 | |
1,864,767 | Integrating a ReactPHP Server in Laravel | Create a Command Create a Laravel command, php artisan make:command SaleServer... | 0 | 2024-05-25T10:42:33 | https://dev.to/kornatzky/integrating-a-reactphp-server-in-laravel-lo0 | laravel, php, reactphp | ## Create a Command
Create a Laravel command,
php artisan make:command SaleServer --command=bidserver:sale
This command will be a daemon that runs a ReactPHP server.
## Calling the Server
The command is called with a HTTP `post` from a Livewire component,
Http::asForm()->post(config('auctions.SALE_SERVER_URL') . ':' . config('auctions.SALE_SERVER_PORT') . '/buy', [
'auction_id' => $this->auction->id,
'item_id' => $this->item->id,
'user' => $this->user->id,
'price' => $bid_received['price'],
]);
## The Server
The command creates a ReactPHP server, that receives these calls.
<?php
namespace App\Console\Commands;
use Illuminate\Console\Command;
use React\Http\Server;
use React\Http\Message\Response;
use React\EventLoop\Factory;
use Psr\Http\Message\ServerRequestInterface;
use React\Socket\SocketServer;
class SaleServer extends Command
{
/**
* The name and signature of the console command.
*
* @var string
*/
protected $signature = 'bidserver:sale';
/**
* The console command description.
*
* @var string
*/
protected $description = 'Sale bid server';
/**
* Execute the console command.
*/
public function handle()
{
$loop = Factory::create();
$server = new Server(function (ServerRequestInterface $request) {
$path = $request->getUri()->getPath();
$method = $request->getMethod();
//Check if the path and method of the call are correct
if ($path == '/buy' && $method === 'POST') {
//Extract the call parameters
$auction_id = $request->getParsedBody()['auction_id'] ?? null;
$item_id = $request->getParsedBody()['item_id'] ?? null;
$user = $request->getParsedBody()['user'] ?? null;
$bid_price = $request->getParsedBody()['price'] ?? null;
//Broadcast a response
broadcast(new BuyAccepted($auction_id, $item_id, $user))->toOthers();
return Response::plaintext('bid processed')->withStatus(Response::STATUS_OK);
}
return Response::plaintext('Not found')->withStatus(Response::STATUS_NOT_FOUND);
});
$socket = new SocketServer('0.0.0.0:' . config('auctions.SALE_SERVER_PORT'));
$server->listen($socket);
$loop->run();
}
}
## Daemon in Forge
Add a daemon running the command:
php artisan bidserver:sale
| kornatzky |
1,864,766 | A Guide to Opening a Bank Account in Dubai | Dubai, a global financial hub, attracts individuals and businesses from around the world. Whether... | 0 | 2024-05-25T10:41:03 | https://dev.to/today_intrend_6ec56a0dc9/a-guide-to-opening-a-bank-account-in-dubai-4fk1 | Dubai, a global financial hub, attracts individuals and businesses from around the world. Whether you're a resident, an expatriate, or an entrepreneur, having a bank account in Dubai is essential for managing your finances efficiently. This guide will walk you through the steps and requirements for [opening a bank account](https://aauditing.com/opening-a-bank-account-in-dubai/) in this vibrant city.
Types of Bank Accounts
Personal Accounts: These are for individual use, including savings accounts, current accounts, and fixed deposit accounts. They cater to daily financial transactions, savings, and personal financial management.
Business Accounts: Designed for companies and entrepreneurs, these accounts facilitate business transactions, payroll management, and corporate savings. They include current accounts, merchant accounts, and corporate savings accounts.
Non-resident Accounts: These accounts are for individuals who do not reside in the UAE but wish to maintain a bank account in Dubai. These accounts are subject to different regulations and may have higher minimum balance requirements. | today_intrend_6ec56a0dc9 | |
1,864,765 | Mastering Salesforce: The Ultimate Guide at Nagpur's Premier Training Institute | In the bustling city of Nagpur, where opportunities abound and aspirations soar high, finding the... | 0 | 2024-05-25T10:37:51 | https://dev.to/offpage_works_951885f68ac/mastering-salesforce-the-ultimate-guide-at-nagpurs-premier-training-institute-1l7j | In the bustling city of Nagpur, where opportunities abound and aspirations soar high, finding the right avenue to excel in the competitive realm of Salesforce becomes paramount. Enter Nagpur's premier training institute, Softronix, heralded as the beacon of excellence in nurturing Salesforce professionals. As the epitome of innovation and expertise, Softronix stands tall as the [best Salesforce training institute in Nagpur](https://www.softronix.in/salesforce-Training-In-Nagpur), offering a comprehensive pathway towards mastering Salesforce.
In today's dynamic business landscape, proficiency in Salesforce is not just an asset but a necessity. As companies worldwide embrace digital transformation, the demand for skilled Salesforce professionals continues to skyrocket. Recognizing this growing demand, Softronix has curated an unparalleled training program designed to equip individuals with the knowledge, skills, and confidence to thrive in the realm of Salesforce.
At Softronix, excellence is not just a goal; it's a commitment. With a team of seasoned experts and industry veterans at the helm, the institute ensures that every student receives the highest quality of education and mentorship. The curriculum is meticulously crafted to cover all facets of Salesforce, from the fundamentals to advanced concepts, ensuring a holistic learning experience.
The journey towards mastering Salesforce at Softronix begins with a solid foundation. Students are introduced to the core principles of Salesforce, understanding its architecture, functionality, and ecosystem. Through immersive lectures, hands-on exercises, and real-world case studies, participants gain a deep understanding of Salesforce's capabilities and how it can be leveraged to drive business success.
As the training progresses, students delve into advanced topics such as customizing Salesforce applications, designing complex workflows, and integrating third-party systems. With access to state-of-the-art tools and resources, including sandbox environments and developer consoles, students have the opportunity to apply their newfound knowledge in a simulated, real-world environment.
One of the distinguishing features of Softronix's Salesforce training program is its emphasis on practical application. Recognizing that theoretical knowledge alone is insufficient in today's competitive job market, the institute provides ample opportunities for students to work on live projects and collaborate with industry partners. This hands-on experience not only enhances their technical skills but also instills confidence and prepares them for real-world challenges.
Moreover, Softronix goes above and beyond to ensure that every student receives personalized attention and support throughout their journey. With small class sizes and dedicated instructors, students have the opportunity to engage in meaningful discussions, seek clarification on concepts, and receive individualized feedback on their progress. This personalized approach fosters a supportive learning environment where every student feels valued and empowered to succeed.
Beyond technical proficiency, Softronix also places a strong emphasis on soft skills development. Recognizing that effective communication, problem-solving, and teamwork are essential attributes of successful Salesforce professionals, the institute offers supplementary workshops and seminars to enhance these skills. From resume writing and interview preparation to presentation skills and client management, students graduate from Softronix not only as Salesforce experts but as well-rounded professionals poised for success in the corporate world.
In conclusion, mastering Salesforce at Nagpur's premier training institute, Softronix, is more than just acquiring technical knowledge; it's a transformative journey towards becoming a Salesforce trailblazer. With its comprehensive curriculum, hands-on approach, and personalized support, Softronix sets the gold standard for Salesforce training in Nagpur. Whether you're a seasoned professional looking to upskill or a novice embarking on your Salesforce journey, Softronix is the ultimate destination for unlocking your full potential and achieving unparalleled success in the world of Salesforce.
| offpage_works_951885f68ac | |
1,864,764 | Advancing with DevOps Mastery: Training in Nagpur | In the bustling tech scene of Nagpur, where innovation intertwines with ambition, Softronix emerges... | 0 | 2024-05-25T10:36:33 | https://dev.to/offpage_works_951885f68ac/advancing-with-devops-mastery-training-in-nagpur-5h77 | In the bustling tech scene of Nagpur, where innovation intertwines with ambition, Softronix emerges as a beacon of excellence, offering top-tier [DevOps Training in Nagpur](https://www.softronix.in/blog-details/devops-training-in-nagpur). DevOps, a paradigm shift in software development and IT operations, has become the cornerstone of modern technology, facilitating collaboration, agility, and innovation. With Softronix's expert-led courses, aspiring professionals can advance their careers by mastering DevOps principles and practices, empowering them to stay ahead in the dynamic world of technology.
As organizations worldwide embrace DevOps methodologies to streamline workflows and enhance productivity, the demand for skilled DevOps practitioners continues to soar. Proficiency in DevOps tools and techniques is essential for individuals aiming to thrive in today's fast-paced tech landscape. Softronix's DevOps Training in Nagpur is meticulously designed to equip participants with a comprehensive understanding of DevOps concepts, methodologies, and best practices.
At the heart of Softronix's DevOps Training lies a robust curriculum that covers the core principles and techniques of DevOps, including continuous integration, continuous delivery, infrastructure as code, and automated testing. Participants delve into industry-leading DevOps tools and platforms such as Jenkins, Docker, Kubernetes, and Ansible, learning how to automate processes, deploy applications, and manage infrastructure efficiently. Through hands-on labs, real-world scenarios, and interactive exercises, students gain practical experience and confidence in their DevOps skills.
Softronix's DevOps Training in Nagpur is facilitated by a team of seasoned instructors who bring a wealth of industry knowledge and expertise to the classroom. These instructors, passionate about DevOps and its transformative impact, provide personalized guidance and support to help students navigate complex concepts and methodologies. With a focus on practical, project-based learning, Softronix ensures that students not only grasp theoretical concepts but also develop the critical thinking and problem-solving skills needed to excel as DevOps professionals.
Moreover, Softronix's DevOps Training in Nagpur offers flexible learning options to cater to diverse student needs and preferences. Whether opting for traditional classroom instruction or the flexibility of online learning, Softronix provides both options to ensure students can pursue their DevOps training in a manner that suits their schedule and lifestyle. With state-of-the-art facilities and cutting-edge online learning platforms, Softronix delivers an immersive and interactive learning experience that prepares students for success in the fast-paced realm of DevOps.
Beyond technical skills, Softronix is committed to fostering a supportive learning community where students can collaborate, share ideas, and network with industry professionals. Through group projects, DevOps challenges, and networking events, participants have the opportunity to connect with peers, build relationships, and expand their professional network. Additionally, Softronix offers career guidance and placement assistance to help students seamlessly transition into the workforce and pursue exciting career opportunities in the field of DevOps.
In conclusion, Softronix's DevOps Training in Nagpur offers more than just education; it provides a pathway to mastery in the dynamic domain of DevOps. With its comprehensive curriculum, expert instructors, flexible learning options, and vibrant community, Softronix empowers aspiring professionals to advance their careers, excel in the competitive tech industry, and make a significant impact in Nagpur's thriving tech ecosystem.
| offpage_works_951885f68ac | |
1,864,761 | Advanced Shader Techniques: Delving into Ray Tracing and Signed Distance Functions | Shaders are an essential tool in modern graphics programming, allowing developers to create stunning... | 0 | 2024-05-25T10:27:07 | https://dev.to/hayyanstudio/advanced-shader-techniques-delving-into-ray-tracing-and-signed-distance-functions-4li0 | shader, gamedev, glsl | Shaders are an essential tool in modern graphics programming, allowing developers to create stunning visual effects and complex scenes. While [basic shaders](https://glsl.site/post/how-to-learn-shader-programming/) can handle simple transformations and coloring, advanced shader techniques like ray tracing and signed distance functions (SDFs) enable the creation of more sophisticated effects. This article delves into these advanced shader techniques and how they can be implemented.
## Ray Tracing in Shaders
Ray tracing is a technique used to simulate the way light interacts with objects in a scene. It traces the path of light rays as they travel through the scene, [calculating reflections](https://glsl.site/post/unveiling-the-enigma-delving-deep-into-shader-artistry-and-self-reflection/), refractions, and shadows to create highly realistic images.
## Basic Concepts of Ray Tracing
- Ray Generation: Rays are cast from the camera or eye position into the scene.
- Intersection Calculation: Determine where the rays intersect with objects.
- Shading: Calculate the color at the intersection points based on material properties and lighting.
## Implementing Ray Tracing in GLSL
Here is a simple example of ray tracing a sphere in [GLSL](https://glsl.site/):
```c
precision mediump float;
uniform vec2 u_resolution;
uniform vec3 u_cameraPos;
vec3 sphereColor = vec3(1.0, 0.0, 0.0);
vec3 lightPos = vec3(10.0, 10.0, 10.0);
float sphereSDF(vec3 p) {
return length(p) - 1.0; // Sphere of radius 1
}
vec3 rayDirection(float fov, vec2 fragCoord, vec2 resolution) {
vec2 xy = fragCoord - resolution * 0.5;
float z = resolution.y / tan(radians(fov) * 0.5);
return normalize(vec3(xy, -z));
}
float rayMarch(vec3 ro, vec3 rd) {
float dO = 0.0; // Distance from origin
for (int i = 0; i < 100; i++) {
vec3 p = ro + rd * dO;
float dS = sphereSDF(p); // Distance to the sphere
if (dS < 0.01) return dO; // Hit
dO += dS;
}
return -1.0; // No hit
}
void main() {
vec2 uv = gl_FragCoord.xy / u_resolution;
vec3 ro = u_cameraPos;
vec3 rd = rayDirection(45.0, gl_FragCoord.xy, u_resolution);
float t = rayMarch(ro, rd);
if (t > 0.0) {
vec3 hitPoint = ro + rd * t;
vec3 normal = normalize(hitPoint);
vec3 lightDir = normalize(lightPos - hitPoint);
float diff = max(dot(normal, lightDir), 0.0);
vec3 color = diff * sphereColor;
gl_FragColor = vec4(color, 1.0);
} else {
gl_FragColor = vec4(0.0);
}
}
```
## Signed Distance Functions (SDFs)
SDFs are mathematical functions that return the shortest distance from a point in space to the surface of an object. They are used in ray marching to efficiently render complex shapes and scenes.
## Basics of SDFs
- Distance Calculation: SDFs provide a distance value that indicates how far a point is from the nearest surface.
- Surface Intersection: When the distance is zero, the point lies on the surface.
## Common SDFs
- Sphere: float sphereSDF(vec3 p, float r) { return length(p) - r; }
- Box: float boxSDF(vec3 p, vec3 b) { vec3 q = abs(p) - b; return length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0); }
## Combining SDFs
Complex shapes can be created by combining SDFs using operations like union, intersection, and difference.
- Union: min(d1, d2)
- Intersection: max(d1, d2)
- Difference: max(d1, -d2)
## Example of Combining SDFs
```c
float sceneSDF(vec3 p) {
float sphere = sphereSDF(p - vec3(0.0, 0.0, 5.0), 1.0);
float box = boxSDF(p - vec3(2.0, 0.0, 5.0), vec3(1.0));
return min(sphere, box); // Union of sphere and box
}
```
## Putting It All Together
By combining ray tracing and SDFs, you can create complex and realistic scenes. Here's an example shader that combines these techniques:
```c
precision mediump float;
uniform vec2 u_resolution;
uniform float u_time;
float sphereSDF(vec3 p, float r) {
return length(p) - r;
}
float boxSDF(vec3 p, vec3 b) {
vec3 q = abs(p) - b;
return length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0);
}
float sceneSDF(vec3 p) {
float sphere = sphereSDF(p - vec3(sin(u_time), 0.0, 5.0), 1.0);
float box = boxSDF(p - vec3(2.0, cos(u_time), 5.0), vec3(1.0));
return min(sphere, box);
}
vec3 rayDirection(float fov, vec2 fragCoord, vec2 resolution) {
vec2 xy = fragCoord - resolution * 0.5;
float z = resolution.y / tan(radians(fov) * 0.5);
return normalize(vec3(xy, -z));
}
float rayMarch(vec3 ro, vec3 rd) {
float dO = 0.0; // Distance from origin
for (int i = 0; i < 100; i++) {
vec3 p = ro + rd * dO;
float dS = sceneSDF(p); // Distance to the scene
if (dS < 0.01) return dO; // Hit
dO += dS;
}
return -1.0; // No hit
}
void main() {
vec2 uv = gl_FragCoord.xy / u_resolution;
vec3 ro = vec3(0.0, 0.0, -5.0);
vec3 rd = rayDirection(45.0, gl_FragCoord.xy, u_resolution);
float t = rayMarch(ro, rd);
if (t > 0.0) {
vec3 hitPoint = ro + rd * t;
vec3 normal = normalize(hitPoint);
vec3 lightDir = normalize(vec3(10.0, 10.0, 10.0) - hitPoint);
float diff = max(dot(normal, lightDir), 0.0);
vec3 color = diff * vec3(1.0, 0.5, 0.3);
gl_FragColor = vec4(color, 1.0);
} else {
gl_FragColor = vec4(0.0);
}
}
```
## Conclusion
[Advanced shader techniques](https://glsl.site/tag/technical/) like ray tracing and signed distance functions open up a world of possibilities for creating realistic and complex graphics in WebGL. By understanding these concepts and learning how to implement them, you can significantly enhance the visual quality of your graphics applications. Experiment with different SDF shapes and lighting models to see the full potential of these techniques.
| hayyanstudio |
1,864,759 | [DAY 15-17] I Got My First Web Dev Certification & Started Learning Javascript | Hi everyone! Welcome back to my blog where I document the things I learned while studying to code. I... | 27,380 | 2024-05-25T10:20:44 | https://dev.to/thomascansino/day-15-17-i-got-my-first-web-dev-certification-started-learning-javascript-55jl | beginners, learning, webdev, css | Hi everyone! Welcome back to my blog where I document the things I learned while studying to code. I also do this because it helps retain the information and concepts as it is a sort of an active recall.
Over the course of days 15-17, I built projects to practice my HTML & CSS skills and finally received my first web development certificate from freecodecamp :)
I constructed a ferris wheel to learn CSS animation. Then, I modeled a penguin to explore CSS transforms. Afterwards, I developed a personal portfolio webpage to complete part 5 of the responsive web design certification project on FreeCodeCamp, earning my first web dev certificate :). And lastly, I created a pyramid generator to start my journey into JavaScript. It’s my first programming language.
While making the projects, I was able to:
- explore the `@keyframes` at-rule for CSS animation, utilizing pseudo-selector `:active` and transitions to add subtle and cute little penguin animations.
- start my journey into JavaScript, covering variable declaration, array manipulation method calls like `.push()`, `.pop()`, `.unshift()`, and `.shift()`, log calls with `console.log()`, loops (for, for...of, while), concatenation, and functions.
- differentiate parameters from arguments in function calls.
Man, let me tell you, **I am struggling**, especially with JavaScript concepts being unfamiliar territory. However, I've embraced this exact feeling of being overwhelmed when I was learning HTML & CSS during my first week as part of the learning process.
My take on this is to persistently solve challenges, even if it means banging my head against the keyboard until the code works. The key is to keep moving forward, staying consistent, and trusting that understanding will come with time and practice.
I'm literally embodying the advice of experienced developers: keep building until clarity emerges. Initially, I will build cute little projects with a dirty code, but there will come a time that I'll soon build projects that present solutions to real-world problems, combined with a clean code.
Thank you for reading. Until then, see you next blog! | thomascansino |
1,864,758 | My Pen on CodePen | Check out this web I made! | 0 | 2024-05-25T10:17:22 | https://dev.to/jorgegamingyt/my-pen-on-codepen-3bl3 | codepen | Check out this web I made!
{% codepen https://codepen.io/JORGE-GAMING-YT/pen/rNgLZqG %} | jorgegamingyt |
1,864,756 | The long path of JavaScript - from ES6 until today. | JavaScript, the most popular programming language in 2023, has evolved from its early days in the 1990s to being used across various domains like web and mobile development, game development, and machine learning. How did a language developed in just 10 days by Brendan Eich achieve such widespread success? | 0 | 2024-05-25T10:10:00 | https://academy.binary-studio.com/blog/the-long-path-of-java-script-from-es6-until-today | code, javascript, softwareengineering, learning | ---
title: 'The long path of JavaScript - from ES6 until today.'
description: 'JavaScript, the most popular programming language in 2023, has evolved from its early days in the 1990s to being used across various domains like web and mobile development, game development, and machine learning. How did a language developed in just 10 days by Brendan Eich achieve such widespread success?'
date: '2024/05/25'
tags: ['code', 'javascript', 'softwareengineering', 'learning']
authors:
- 'Farid Shabanov'
disabled: false
published: true
published_at: '2024-05-25T10:10:00Z'
---
According to a [Stack Overflow survey](https://survey.stackoverflow.co/2023/#technology-most-popular-technologies), JavaScript was the most popular language among developers in 2023. JavaScript was initially developed for Netscape Navigator - a web browser that was developed in the middle of 1990s - and now is being used in almost every domain of programming - Web Development, Mobile app development, Game development, Machine Learning and many others.
But how did a language which was developed in 10 days by Brendan Eich become so popular? In this article, we will go through the life of JavaScript from ES6, which was released in 2015 and was the second major and the biggest release for the language, until today, the year of 2023. We will see why ES6 was important for the future of JavaScript, how it changed JavaScript and how it has influenced it over time.
## What was new and important in ES6?
ES6, also known as ECMAScript 2015, was the second major release for JavaScript after ES5 and was the largest release since the language was first released in 1997. It introduced several new features and syntax improvements that enhanced the language's functionality and made it more efficient.
Some of the key features introduced in ES6 include arrow functions, template literals, destructuring, and classes. These additions allowed developers to write cleaner and more concise code, improving readability and maintainability. The lack of some of these features was one of the main reasons why developers were choosing other languages over JavaScript. Another important point of this release was the further release schedule for JavaScript. According to the new schedule, a new version of JavaScript should be released each year which ensures the technology’s further development.
### Introduction of `let` and `const` keywords
One of the main features of ES6 was the introduction of the `let` and `const` keywords. You might wonder why these keywords were important if we already had `var`. The main difference between `var` and new keywords was that `var` has a global scope, while `let` and `const` have a block scope. Another important difference is that the variables declared with `var` are hoisted to the top of their scope (which is global).
The new keywords helped to solve a common issue with variables being accidentally redefined, which resulted in a big number of bugs.
The new `let` and `const` keywords are block scoped and they cannot be redefined. While the variable defined with `let` can be reassigned new values, the ones created with `const` can only be assigned once.
### JavaScript Modules
JavaScript modules were a crucial step in allowing the creation of big JavaScript applications. They allowed separating the code into different files, which would allow creating a cleaner codebase. In the early stages of JavaScript, it was used in only some web applications and only a small amount of JavaScript code was written. The pages were not very interactive and having modules was not necessary.
Over the years, different JavaScript libraries and packages were created and applications became more and more interactive, which required more JavaScript code. The lack of modules made this task harder and required additional packages, such as RequireJS.
### JavaScript Classes
Although it was possible to implement class-like functionalities before ES6 using `function`, it wasn’t very easy to do so. Before ES6, creating classes required updating the `prototype` object, which is a part of every object in JavaScript.
```tsx
// Before ES6
function User(name: string, birthYear: number): void {
this.name = name;
this.birthYear = birthYear;
}
User.prototype.calculateAge = function (): number {
return new Date().getFullYear() - this.birthYear;
};
var user = new User('Farid', 2002);
// IDE does not see calculateAge method
console.log(user.calculateAge());
```
We needed to assign each method to a `prototype` object. Another disadvantage of this method is the fact that IDE does not see the methods we add to a `prototype` object. The alternative of the same object using ES6 `class` would be:
```tsx
// After ES6
class User {
private name: string;
private birthYear: number;
public constructor(name: string, birthYear: number) {
this.name = name;
this.birthYear = birthYear;
}
public calculateAge(): number {
return new Date().getFullYear() - this.birthYear;
}
}
const user = new User('Farid', 2002);
// IDE sees calculateAge method
console.log(user.calculateAge());
```
As you can see, the new syntax makes creating classes much easier, faster and clear.
### Arrow functions
Arrow functions were another major addition to JavaScript with ES6. These functions allowed developers to write shorter and cleaner function expressions, and they also solved some issues with the `this` keyword in JavaScript.
In traditional function expressions (using `function` keyword), the `this` keyword would refer to the object that called the function. However, arrow functions capture the surrounding **`this`** context lexically, meaning that they inherit the **`this`** value from their surrounding scope. This eliminates the need for using **`.bind()`**, **`.call()`**, or **`.apply()`** to preserve the **`this`** context.
```jsx
class User {
public name: string;
public age: number;
public constructor(name: string, age: number) {
this.name = name;
this.age = age;
// We have to bind `this` to be able to use its correct value within our method
this.updateAge = this.updateAge.bind(this);
}
public updateAge(age: number) {
this.age = age;
}
}
```
In this example, `.bind` has to be called in order to have a correct value of `this` within our method. The same method would not require `.bind` to be called if the method is created using an arrow function.
```jsx
class User {
public name: string;
public age: number;
public constructor(name: string, age: number) {
this.name = name;
this.age = age;
}
public updateAge = (age: number) => {
this.age = age;
};
}
```
## What has changed since ES6?
Although ES6 was one of the biggest updates of JavaScript, it didn’t fix all the issues. Since ES6, lots of important features were added to JavaScript, which greatly improved the language.
### Async Await
The introduction of async functions made it much easier to work with Promises. By implementing asynchronous functions, we can wait for Promises to settle, before proceeding with the rest of the logic. Before the introduction of async functions, the same logic could be implemented by using `.then` chaining, which would reduce the readability of the code.
Here is an example of fetching the list of users without using `async await`:
```tsx
const getUsers = () => {
fetchUsers()
.then((response) => {
return response.json();
})
.then((users) => {
console.log(users);
return users;
});
};
```
And this is how simplified the same piece of code is when using `async await` syntax:
```tsx
const getUsers = async () => {
const response = await fetchUsers();
const users = await response.json();
console.log(users);
return users;
};
```
### Optional chaining
Optional chaining is a powerful feature, especially if we often access nested properties or functions, which are optional. It helps to avoid errors such as `Cannot read properties of undefined` or `Cannot read properties of null` by returning `undefined`when the property is not available.
```tsx
type Coordinates = {
lat: number;
lng: number;
};
type UserLocation = {
country: string;
coordinates?: Coordinates;
};
type User = {
name: string;
surname: string;
location?: UserLocation;
};
// Without optional chaining
const getUserCoordinates = (user?: User): Coordinates | null => {
if (user && user.location && user.location.coordinates) {
return user.location.coordinates;
}
return null;
};
```
Without optional chaining, we need to check each nested object and make sure that the nested object exists. Optional chaining helps us to avoid unnecessary `if` checks and use inline checks.
```tsx
// With optional chaining
const getUserCoordinates = (user?: User): Coordinates | null => {
return user?.location?.coordinates ?? null;
};
```
### Logical assignment operators
Starting from older versions of JavaScript, we can use different assignments such as `+=` or `-=`, but the similar assignments did not work for logical checks such as `||`, `&&` and `??`. The logical assignment operators assign the value on the right to the value on the left if the left value is falsy, truthy or nullish.
**Logical OR (`||=`)**
The logical OR operator only assigns the value if the value on the left is falsy. In case it is truthy, its value will not change.
```tsx
// Logical OR
let profilePictureUrl = '';
profilePictureUrl ||= 'default_url';
console.log(profilePictureUrl); // "default_url"
```
**Logical AND**
As opposed to the logical OR operator, the logical AND operator will only assign the value if the value on the left is truthy. This comes handy when we try to assign a value to a nested variable in an object.
```tsx
// Logical AND
type User = {
name?: string;
};
const user: User = {};
user.name &&= 'Farid';
```
**Nullish coalescing assignment**
Nullish coalescing assignment is very similar to the logical OR assignment, but it will only assign a value if the left part is nullish. In JavaScript, nullish values are `null` and `undefined`
```tsx
// Nullish coalescing assignment
const user: User = {
name: 'Farid',
};
user.name ??= 'Guest';
```
### Top level await
One of the most significant changes in JavaScript since ES6 is the introduction of top level await. This feature allows you to use the `await` keyword outside of async functions, at the top level of your code. It has made the handling of async operations more straightforward, especially in module initializations and configurations where async functions were not allowed before.
```tsx
import fs from 'fs/promises';
const readData = async () => {
try {
const content = await fs.readFile('data.txt', 'utf-8');
return content;
} catch (error) {
throw new Error('Could not read file', { cause: error });
}
};
const content = await readData();
```
Before, the same code would require using `.then` callbacks, which would make the code messy and hard to read
```tsx
import fs from 'fs/promises';
const readData = async () => {
try {
const content = await fs.readFile('data.txt', 'utf-8');
return content;
} catch (error) {
throw new Error('Could not read file', { cause: error });
}
};
readData().then((content) => {
// handle content further
});
```
## What awaits JavaScript in future
JavaScript is improved day by day and a crucial role in this process is played by TC39 (Technical Committee 39). This committee is responsible for evolving the JavaScript language further, maintaining and updating the language standards, analyzing proposals and other processes that help JavaScript to continuously improve.
As mentioned before, TC39 is responsible for analyzing proposals. Proposals are the contributions from the community to add new features to JavaScript. Some of the popular proposals are `Temporal`, `import attributes` and `pipeline operator`.
### Temporal
[The Temporal API](https://github.com/tc39/proposal-temporal), which is currently in Stage 3, is being developed to improve the current Date object, which is mostly known for its unexpected behavior. Today there are lots of date-time libraries for JavaScript, such as `date-fns`, `moment`, `js-joda` and a huge number of others. They all try to help with unpredictable and unexpected behavior of JavaScript Date object by adding features such as timezones, date parsing and almost everything else.
With different objects like `Temporal.TimeZone`, `Temporal.PlainDate` and others, Temporal API is trying to address all these issues and replace JavaScript Date object. You can start testing the new API using an `npm` package named `@js-temporal/polyfill`
### Import attributes
[The proposal](https://github.com/tc39/proposal-import-attributes) for import attributes aims to improve the import statement in JavaScript by allowing developers to assert certain conditions about the imported module. This can help catch errors at compile-time instead of runtime and make the code more robust. Currently this proposal is in Stage 3.
With import attributes, you can specify the type of the imported module or ensure that a specific version of the module is used.
```tsx
import json from "./foo.json" assert { type: "json" };
import("foo.json", { with: { type: "json" } });
```
### Pipeline operator
[The pipeline operator](https://github.com/tc39/proposal-pipeline-operator) proposal, which is currently in Stage 2, introduces a new operator `|>` that allows developers to chain multiple function calls together in a more readable and concise way. Together with the pipeline operator, the placeholder operator `%` is being introduced which will hold the previous function’s value. It should enhance the readability and maintainability of code, especially when performing a series of operations on a value.
Instead of nested function calls or long chains of dot notation, the pipeline operator allows developers to write code in a more linear and intuitive manner. Here is a real-world example from a React repository, which can be improved by using the pipeline operator:
```tsx
console.log(
chalk.dim(
`$ ${Object.keys(envars)
.map((envar) => `${envar}=${envars[envar]}`)
.join(' ')}`,
'node',
args.join(' '),
),
);
```
As you can see, by adding nested function calls it becomes much harder to read and understand the code. By adding the pipeline operator, this code can be updated and improved:
```tsx
Object.keys(envars)
.map(envar => `${envar}=${envars[envar]}`)
.join(' ')
|> `$ ${%}`
|> chalk.dim(%, 'node', args.join(' '))
|> console.log(%);
```
### Decorators
Although decorators are not yet available in JavaScript, they are actively used with the help of such transpilers as TypeScript, Babel and Webpack. Currently, [the decorators proposal](https://github.com/tc39/proposal-decorators) is in Stage 3, which means it is getting closer to being a part of native JavaScript. Decorators are the functions, that are called on other JavaScript elements, such as classes, class elements, methods, or other functions, by adding an additional functionality on those elements.
Custom decorators can be easily created and used. In the bottom, the decorator is just a function, that accepts specific arguments:
- Value - the element, on which the decorator is used
- Context - The context of the element, on which the decorator is used.
Here’s the total type of the decorator:
```tsx
type Decorator = (
value: Input,
context: {
kind: string;
name: string | symbol;
access: {
get?(): unknown;
set?(value: unknown): void;
};
private?: boolean;
static?: boolean;
addInitializer(initializer: () => void): void;
},
) => Output | void;
```
A useful example of using the decorators would be for protecting the methods with a validation rule. For that, we can create the following decorator:
```tsx
const validateUser = (rule: (...args: number[]) => boolean) => {
const decorator: Decorator = (_target, _context) => {
return function (...args: number[]) {
const isValidated = rule(...args);
if (!isValidated) {
throw new Error('Arguments are not validated');
}
};
};
return decorator;
};
```
And use it the following way:
```tsx
const ADMIN_ID = 1;
const checkIsAdmin = (id: unknown): boolean => {
return id === ADMIN_ID;
};
class User {
@validateUser(checkIsAdmin)
deleteUser(id: unknown) {
// Delete logic
}
}
```
These are just a few examples of the proposals that are being considered for the future of JavaScript. With the continuous efforts of TC39 and the active participation of the JavaScript community, we can expect JavaScript to evolve and improve even further in the coming years.
### Conclusion
JavaScript has come a long way since the release of ES6 in 2015. ES6 introduced important features such as `let` and `const` keywords, JavaScript modules, classes, and arrow functions. Since then, JavaScript has continued to improve, with the introduction of features like async/await, optional chaining, and logical assignment operators.
Looking ahead, JavaScript has a promising future with proposals like `Temporal`, `import` attributes, the `pipeline operator`, and `decorators`. With the continuous efforts of TC39 and the active participation of the JavaScript community, we can expect JavaScript to continue improving and remain a popular language in the years to come.
| fsh02 |
1,864,754 | Introducing Next.js 15: The Future of React Development | Next.js has long been a favorite framework for React developers, offering a robust set of tools for... | 0 | 2024-05-25T10:05:41 | https://dev.to/jehnz/introducing-nextjs-15-the-future-of-react-development-3eea | Next.js has long been a favorite framework for React developers, offering a robust set of tools for building server-rendered and statically generated applications. With the release of Next.js 15, Vercel has once again pushed the boundaries of what’s possible in modern web development. Let’s dive into the exciting new features and improvements that Next.js 15 brings to the table.
## **Enhanced Performance and Speed**
**Optimized Build Times**
One of the standout features of Next.js 15 is its significantly optimized build times. Leveraging advanced caching mechanisms and incremental builds, developers can now experience faster compilation, making the development process smoother and more efficient. This improvement is particularly beneficial for large projects, where build times can often become a bottleneck.
**Improved Server-Side Rendering (SSR)**
Next.js 15 introduces enhanced server-side rendering capabilities. The new optimized rendering engine ensures that pages load faster by reducing the time taken to render components on the server. This not only improves the user experience but also boosts SEO performance, making your applications more discoverable on search engines.
## **Advanced Routing Capabilities**
**Dynamic Route Segments**
Dynamic routing has received a significant upgrade in Next.js 15. The introduction of dynamic route segments allows for more flexible and powerful URL structures. Developers can now create routes with parameters and wildcards, enabling more complex and user-friendly navigation patterns.
```javascript
// Example of dynamic route segment
import { useRouter } from 'next/router';
const Post = () => {
const router = useRouter();
const { id } = router.query;
return <div>Post ID: {id}</div>;
};
export default Post;
```
**Middleware Enhancements**
Next.js 15 brings improvements to middleware, allowing for more granular control over request handling. Middleware can now be applied at the route level, providing the ability to execute code before rendering a page, making it easier to implement authentication, logging, and other critical functionalities.
## **Static Site Generation (SSG) on Steroids**
**Incremental Static Regeneration (ISR)**
Incremental Static Regeneration (ISR) is a game-changer for content-heavy sites. Next.js 15 takes ISR to the next level with improved revalidation strategies. Pages can now be revalidated in the background, ensuring that users always see the most up-to-date content without the need for a full rebuild.
```javascript
export async function getStaticProps() {
// Fetch data
const data = await fetchData();
return {
props: {
data,
},
revalidate: 60, // Revalidate every 60 seconds
};
}
```
**Enhanced Static Export**
Static site generation is more powerful than ever in Next.js 15. The new enhanced static export feature allows developers to export their entire site to static files, making it easy to deploy to any static hosting service. This feature also includes better support for dynamic content, ensuring that static exports are as functional and flexible as server-rendered sites.
## **Developer Experience Improvements**
**Enhanced Error Handling**
Next.js 15 introduces a more intuitive and detailed error handling system. The new error overlay provides clearer messages and stack traces, helping developers quickly identify and fix issues during development. This feature significantly reduces the time spent debugging, allowing for a smoother development workflow.
**Integrated TypeScript Support**
TypeScript support in Next.js 15 is better than ever. The framework now comes with built-in TypeScript support, ensuring that developers can take advantage of type checking and autocompletion out of the box. This integration enhances code quality and helps prevent common errors, making the development process more robust and reliable.
## **Built-In Analytics and Monitoring**
**Real-Time Performance Monitoring**
With the increasing complexity of web applications, monitoring performance is crucial. Next.js 15 includes built-in analytics and performance monitoring tools that provide real-time insights into your application's performance. These tools help identify bottlenecks and optimize the user experience, ensuring that your application runs smoothly and efficiently.
**Comprehensive Metrics Dashboard**
The new metrics dashboard offers a comprehensive view of your application's performance, including page load times, API response times, and user interactions. This data-driven approach allows developers to make informed decisions about optimizations and improvements, leading to a better overall user experience.
**Conclusion**
Next.js 15 is a monumental release that brings a host of new features and improvements to the table. From enhanced performance and advanced routing capabilities to powerful static site generation and improved developer experience, Next.js 15 is set to redefine the future of React development. Whether you’re building a simple blog or a complex enterprise application, Next.js 15 provides the tools and capabilities you need to succeed.
>Dive into Next.js 15 today and experience the future of web development! | jehnz | |
1,864,751 | How Data Visualization Enhances Understanding: A Matplotlib Primer | Simply analyzing data isn't sufficient to draw conclusions or highlight insights. To effectively... | 27,508 | 2024-05-25T10:03:14 | https://dev.to/lohith0512/how-data-visualization-enhances-understanding-a-matplotlib-primer-5dnc | python, beginners, matplotlib, visualization |
Simply analyzing data isn't sufficient to draw conclusions or highlight insights. To effectively communicate our findings, we need to use graphs and charts. This is where data visualization comes in. It's a vital aspect of data analysis. In this series, we'll explore the basics of data visualization using Matplotlib, a popular Python library. With Matplotlib, we can create clear and informative visual representations of our analyzed data.
---
## <u>Data Visualization</u>
Data visualization is all about showing data in pictures and graphs. Instead of just looking at numbers, you can see the information visually. It helps to tell a story about the data and understand it better. There are different tools and libraries like Tableau, Power BI, and Python's Matplotlib that make it easy to create these visual representations.
---
## <u>Matplotlib</u>
Matplotlib stands as a widely utilized and potent Python library, serving to visually depict data through an array of charts and graphs. Its versatility allows for tailoring visual representations to match specific needs and requirements.
---
## <u>How to install Matplotlib</u>
To install **Matplotlib**, a powerful data visualization library in Python, you have a couple of options:
1.<u>**Using Conda** (for Conda users):</u>
- Open your command prompt or terminal.
- Type the following command and hit Enter:
```
conda install matplotlib
```
- When prompted, type `y` to confirm the installation.
- For best practices, consider creating a separate environment for installation using:
```
conda create -n my-env
conda activate my-env
```
- If you prefer using the **conda-forge** channel, add it with:
```
conda config --env --add channels conda-forge
```
2.<u>**Using Pip** (for Pip users):</u>
- Open your command prompt or terminal.
- Execute the following command:
```
pip install matplotlib
```
- Once the installation is complete, you'll receive a confirmation message.
3.<u>**Verifying Installation**:</u>
- To verify if Matplotlib has been successfully installed, run the following code in a Python IDE:
```python
import matplotlib
print(matplotlib.__version__)
```
If you see the version number, you're all set! 🎉
Feel free to explore the world of data visualization with Matplotlib! 📊👍 | lohith0512 |
1,864,750 | Leveraging Next.js and Firebase for Efficient Web App Development: A Real-world Example | Explore how Next.js and Firebase can streamline web app development through a detailed explanation of code for dynamically loading data. | 0 | 2024-05-25T10:00:30 | https://dev.to/itselftools/leveraging-nextjs-and-firebase-for-efficient-web-app-development-a-real-world-example-e89 | javascript, nextjs, firebase, webdev |
At [itselftools.com](https://itselftools.com), through developing over 30 projects using Next.js and Firebase, we've gained invaluable insights into effective development strategies. Today, we'd like to share a snippet of code from our actual projects and explain how it utilizes both Next.js and Firebase for building robust and scalable web applications.
## Understanding the `getStaticProps` Function in Next.js
```javascript
export async function getStaticProps() {
const db = firebase.firestore();
const snapshot = await db.collection('team').orderBy('name').get();
const teamMembers = snapshot.docs.map(doc => doc.data());
return {
props: { teamMembers },
revalidate: 600
};
}
```
The above code is a typical example of how to leverage Next.js's `getStaticProps` to fetch data from Firebase Firestore. Here’s what each part of the code does:
- **Firebase Initialization**: `const db = firebase.firestore();` sets up the Firebase Firestore database connection.
- **Data Retrieval**: `await db.collection('team').orderBy('name').get();` fetches data from the 'team' collection in Firestore, and orders it by the 'name' field. This is useful for displaying items in a sorted manner.
- **Mapping Data**: `snapshot.docs.map(doc => doc.data());` converts the Firestore documents into a JavaScript array of objects, where each object contains data about a team member.
- **Returning Props**: The function returns an object containing `teamMembers` which are then passed as props to the React component. This is essential for server-side rendering in Next.js.
- **Revalidation**: `revalidate: 600` means that the page will update its static content every 10 minutes. This is useful for pages that need to show updated data but not necessarily in real-time.
## Practical Applications
This method is particularly useful for building applications where you need up-to-date information from your database shown in real-time or near real-time. It strikes a balance between static generation and showing fresh data, enhancing both performance and user experience.
By pre-building pages and updating them periodically, Next.js apps can provide faster load times while still accommodating changes in the data stored in Firestore.
## Conclusion
Integrating Next.js with Firebase offers a scalable, efficient solution for building modern web applications that need to respond quickly to changes in data while maintaining high performance. If you want to see implementations of such integrations in action, visit some of our apps: find detailed rhymes through [our Rhyming Dictionary](https://rhymes-with.com), extract text seamlessly using [our OCR tool](https://ocr-free.com), and enhance your vocabulary with [our Adjective Finder](https://adjectives-for.com).
These tools utilize similar patterns to what has been discussed, showcasing the power and flexibility of combining Next.js with Firebase in real-world applications. | antoineit |
1,864,749 | Comment bien gérer les erreurs avec Remix ? (ErrorBoundary) | As-tu déjà eu des erreurs Javascript en production ? Pire encore, as-tu reçu l'appel d'un client, qui... | 0 | 2024-05-25T09:59:49 | https://algomax.fr/blog/comment-gerer-les-erreurs-avec-remix-error-boundary | webdev, javascript, react, remix | As-tu déjà eu des erreurs Javascript en production ? **Pire** encore, as-tu reçu l'appel d'un client, qui se plaint d'avoir reçu un message d'erreur ?
Tu perds de la crédibilité.
Heureusement, il existe le composant _ErrorBoundary_ qui permet d'afficher un composant d'erreur, respectant le thème du site et ton Design System.
{% youtube https://youtu.be/ZcOywCf4shU %}
## Avant d'utiliser ErrorBoundary
Tu retrouves un message d'erreur générique incompréhensible. Difficile de comprendre ce qui a pu se passer, et tu vas prendre du temps à réparer le bug. De plus, ton site est inutilisable en l'état. La navigation de ton utilisateur a été coupée brutalement.
## Après avoir mis en place ErrorBoundary
Tu améliores l'expérience utilisateur. Tu réduis l'impact de l'erreur à l'endroit où elle a été déclenchée. Cela permet au développeur de vite résoudre le problème, car il sait exactement de quel fichier il s'agit.
Dans Remix, on utilise le composant [ErrorBoundary](https://remix.run/docs/en/main/route/error-boundary), qui va remplacer le composant ayant déclenché l'erreur.
Tu retrouves cet exemple et davantage d'information dans la documentation de Remix concernant [l'error handling](https://remix.run/docs/en/main/guides/errors)
Pour améliorer l'expérience utilisateur (UX), il est recommandé d'offrir une explication claire dans le message d'erreur, comme expliqué dans la figure ci-dessous ([Source](https://www.linkedin.com/pulse/designing-better-error-messages-ux-vitaly-friedman/)).
Un message d'erreur idéal :
- **rassure** le client
- **explique** la raison du problème
- **offre** une marche à suivre pour arranger les choses (contacter le support)
## Qu'est-ce que le composant ErrorBoundary ?
C'est une _librairie_ Javascript, disponible sur _NPM_ sous le nom de [react-error-boundary](https://www.npmjs.com/package/react-error-boundary). Elle est téléchargée plus de 3,7 millions de fois par semaine.
Pour l'utiliser dans une application React standard, il suffit de la télécharger dans ton projet :
```bash
npm install react-error-boundary
```
Ensuite, tu l'utilises dans un composant React. Elle va _englober_ le composant qui risque de déclencher une erreur, et afficher un composant _fallback_ à la place.
```tsx
import { ErrorBoundary } from 'react-error-boundary';
<ErrorBoundary fallback={<div>Something went wrong</div>}>
<ExampleApplication />
</ErrorBoundary>;
```
Cet exemple montre deux composants :
- Le composant parent _ErrorBoundary_, qui prend un _children_ (le composant enfant) et une propriété _fallback_ (affichant le composant d'erreur)
- Le composant enfant _ExampleApplication_. En cas d'erreur de ce dernier, l'erreur ne va pas remonter à la racine de l'application. À la place, l'erreur va afficher le composant _fallback_.
Il y a une deuxième manière d'utiliser ce composant, offrant plus de contrôle et une meilleure UX.
```tsx
import { ErrorBoundary } from 'react-error-boundary';
function fallbackRender({ error, resetErrorBoundary }) {
// Call resetErrorBoundary() to reset the error boundary and retry the render.
return (
<div role='alert'>
<p>Something went wrong:</p>
<pre style={{ color: 'red' }}>{error.message}</pre>
</div>
);
}
<ErrorBoundary
fallbackRender={fallbackRender}
onReset={(details) => {
// Reset the state of your app so the error doesn't happen again
}}
>
<ExampleApplication />
</ErrorBoundary>;
```
La propriété _fallbackRender_ accepte une fonction fléchée, nous permettant de récupérer deux arguments :
- Les informations sur l'erreur qui a été déclenchée
- Une fonction permettant de ré-effectuer un rendu du composant. Déclencher cette fonction permet d'annuler l'erreur, et d'afficher le composant enfant.
Généralement, on laisse l'utilisateur appeler cette méthode `resetErrorBoundary`. Plus haut, par exemple en utilisant le bouton _Try Again_.
Mais cet article ne se concentre pas sur ce composant très utile.
Si tu utilises [Remix](https://remix.run), tu n'as même pas besoin de l'utiliser.
Il est intégré directement dans la librairie !
## Comment gérer tes erreurs avec Remix
Pour déclencher une erreur dans ton application Remix, il te suffit d'ajouter l'instruction `throw new Error('bam')` sur n'importe quelle route active.
Ce qui affiche ceci :
Cette erreur n'est pas claire du tout. Et elle rend ton application inutilisable pour les clients : Ils ne peuvent pas accéder à une autre page depuis l'interface.
De plus, cela ne t'aide pas à connaître la raison de l'erreur : elle pourrait être déclenchée par n'importe quoi.
Comment faire ? Il suffit d' **exporter un composant nommé ErrorBoundary** dans ton application Remix. Commence par l'importer dans le fichier `root.tsx`, se situant dans le dossier `app/routes` de ton projet Remix.
## Le composant ErrorBoundary (Remix)
Le composant _ErrorBoundary_ est une convention de Remix (au même titre que les méthodes _loader_ et _action_). Exporter un composant nommé "ErrorBoundary" dans n'importe quelle route indique à Remix qu'en cas d'erreur, il doit afficher son contenu, et ne pas propager l'erreur plus haut.
Prenons par exemple l'export ci-dessous :
```tsx
export function ErrorBoundary() {
const error = useRouteError();
let errorMessage = 'Une erreur inattendue est survenue';
if (error instanceof Error) {
errorMessage = error.message;
}
return <div>{errorMessage}</span>;
}
```
Après avoir ajouté ces quelques lignes, notre application ressemble à ça :
On avait rajouté la ligne `throw new Error('bam');`. Au lieu d'afficher l'erreur en rouge, sans design, notre composant _ErrorBoundary_ est affiché.
Cela nous apporte quelques bénéfices :
- L'erreur ne se propage pas au dessus (on y revient un peu plus bas)
- On peut designer notre message d'erreur, expliquer au client ce qui s'est passé, et lui indiquer la marche à suivre
- En bonus, on peut sauvegarder cette erreur avec un outil comme _Sentry_, ou l'envoyer par email pour être prévenu si jamais elle est déclenchée en production.
## Les erreurs ne remontent pas
[React](https://react.dev) utilise un système de composants, avec des balises imbriquées. Ce qui donne une hiérarchie avec des "parents" et des "enfants".
Avec **Remix**, il est possible d'implémenter des _routes imbriquées_. Cela signifie qu'il est possible d'avoir plusieurs routes _actives_ en même temps.
C'est ce que nous montre l'image, que nous avions vu au dessus :
Cette image représente une route imbriquée. Quatres routes sont actuellement actives :
- La route _root_ principale. C'est notre composant d'entrée, cette route est rendue sur toutes les routes. La route _root_ affiche la barre latérale, sur le côté gauche.
- La route _sales_ (on la voit comme premier segment dans l'URL) affiche le titre de la page **"Sales"**, ainsi qu'une barre de navigation horizontale.
- La route _invoices_ (on retrouve son segment dans l'URL) est "enfant" de la route Sales, et affiche les statistiques globales, la barre jaune et verte ainsi que le tableau de factures
- La route dynamique _102000_ (où **102000** représente une _id_ de facture) est imbriquée dans _invoices_ (encore une fois, on le constate grâce au segment d'URL final). C'est le dernier enfant de cette hiérarchie, l'enfant le plus bas. Et il est en erreur.
On peut symboliser cette vue d'une autre manière :
```tsx
export default function Page () {
return (<Sales>
<Invoices>
<Invoice id="102000"/>
</Invoices
</Sales>)
}
```
Chaque imbrication représente un enfant dans notre composant. Et le composant **ErrorBoundary** empêche notre erreur de remonter plus haut.
Ce qui est représenté par l'image ci-dessus, au final, est un message d'erreur qui a empêché une erreur déclenchée dans le composant `Invoice` de remonter plus haut.
C'est un peu comme s'il s'était passé la chose suivante :
```tsx
export default function Page() {
return (
<Sales>
<Invoices>
<ErrorBoundary fallback={<Error message='Something went wrong' />}>
<Invoice id='102000' />
</ErrorBoundary>
</Invoices>
</Sales>
);
}
```
Remix a remplacé le composant `Invoice` par un composant `Error`, car ce fichier était protégé par une fonction ErrorBoundary.
En ajoutant ce composant sur notre route imbriquée, nous améliorons considérablement l'expérience de nos utilisateurs. De plus, nos développeurs identifient plus rapidement le problème, car le composant en erreur est au plus bas dans la hiérarchie.
| varkoff |
1,864,748 | HOW TO CREATE FILE SHARE | Your company(Hagital Consulting) needs to ensure that backups are in place for all Azure file shares.... | 0 | 2024-05-25T09:55:25 | https://dev.to/shaloversal123/how-to-create-file-share-3ifb | Your company(Hagital Consulting) needs to ensure that backups are in place for all Azure file shares. This is because it’s Staffs often modifyfiles within the file share, file versioning is also important. To test functionality, you are tasked with taking a snapshot of a file share and restoring it to your Windows machine.
SOLUTION STEPS
• Create a Storage Account and File Share
• Storage account name: Enter in a globally unique name
• Location: Set to the same location as the existing resource group
• Performance: Standard
• Click Review + create and then Create.
• Once the storage account has been deployed successfully, click Go to resource.
• Click on File shares in the left side menu.
• Click on + File share.
• Name the fileshare.
• Click on Review + create and then Create.
• Connect to your VM
• Once connected, minimize any open windows, click on the magnifying glass to search for Windows Firewall and open Windows Firewall.
• In the Windows Firewall window, click on Turn Windows Firewall on or off.
• Turn the Firewall state to Off. Click Apply and then Ok.
• Search for Windows PowerShell on your windows VM. Right-click on it, and click on Run as administrator.
• Back in the Azure portal, open your storage account and then click on File shares on the left menu.
• Select your file share, and click Connect.
• In the side window that opens, click on Show Script and copy the PowerShell script to your clipboard.
• Paste the PowerShell script in the Windows VM PowerShell session to connect the file share.
• After a moment, you should get a message that the credential was added successfully.
Take a Snapshot and Restore Data
• Click in File Explorer at the bottom of the Windows VM.
• Click on This PC and open your fileshare.
• Right-click in the fileshare window and click on New > Text Document. Name this document.
• Open the newly created document and type any words in there
• Click on File > Save.
• Return to the Azure Portal and close the Connect side window.
• Click on Browse in the left side menu and verify that you can see the test.txt file.
Add Snapshots.
• Click on Add Snapshot and give it a name in the Comment Window before clicking OK.
• In the Windows VM, add some random text to the test document that you created. Click on File > Save.
• Return to the Azure Portal.
• Locate the Snapshot and select to open in up.
• Select the ellipsis on the right-hand side of the test.txt file.
• Select Restore
• Click on Overwrite original file and then OK.
• Open the test.txt file and you should see that it has reverted to its original text.
-
| shaloversal123 | |
1,864,747 | SAP PP | Introduction to SAP PP (Production Planning): SAP PP (Production Planning) is a critical module... | 0 | 2024-05-25T09:54:47 | https://dev.to/mylearnnest/sap-pp-26k | **Introduction to SAP PP (Production Planning):**
[SAP PP (Production Planning)](https://www.sapmasters.in/sap-pp-training-in-bangalore/) is a critical module within the SAP ERP system, designed to integrate various processes involved in manufacturing and production. It helps organizations streamline their production processes, manage resources efficiently, and ensure timely production and delivery of goods.
**Key Components of SAP PP:**
**Bill of Materials (BOM):**
BOM is a [comprehensive list of materials](https://www.sapmasters.in/sap-pp-training-in-bangalore/), components, and assemblies required to create a product. It includes details about the quantity of each component and the sequence in which they are used.
**Work Centers:**
Work centers are specific locations within a plant where production operations are carried out. They represent physical or logical entities like machines, [production lines](https://www.sapmasters.in/sap-pp-training-in-bangalore/), or assembly stations.
**Routing:**
Routing defines the sequence of operations required to manufacture a product. It includes details such as machine time, labor time, and the work centers where each operation is performed.
**Production Version:**
This combines BOM and routing data to define the manufacturing process for a product. Multiple production versions can exist for different manufacturing methods.
**Production Planning Cycle:**
The production planning cycle in [SAP PP](https://www.sapmasters.in/sap-pp-training-in-bangalore/) consists of two main processes: planning and execution.
**Planning:**
Sales and Operations Planning (S&OP):
This process translates sales forecasts into production plans. It involves creating a [rough-cut plan](https://www.sapmasters.in/sap-pp-training-in-bangalore/) to balance supply and demand.
**Demand Management:**
Demand management estimates requirement quantities and delivery dates. It uses [planned independent requirements](https://www.sapmasters.in/sap-pp-training-in-bangalore/) (PIR) and customer requirements to forecast demand.
**Material Requirement Planning (MRP):**
MRP checks the availability of materials required for production. It generates procurement proposals like purchase requisitions for externally sourced materials and planned orders for in-house production.
**Capacity Planning:**
Capacity planning ensures that production resources are used efficiently. It involves analyzing the workload on work centers and adjusting schedules to avoid bottlenecks.
**Execution:**
**Production Orders:**
Planned orders generated by [MRP](https://www.sapmasters.in/sap-pp-training-in-bangalore/) are converted into production orders. These orders are detailed instructions specifying what material needs to be produced, the quantity, and the timeline.
**Order Release and Scheduling:**
Production orders are released to the shop floor, where operations are scheduled according to the defined routings. Material availability checks are performed to ensure all necessary components are available.
**Production Execution:**
Operations are carried out as per the production order. The progress is tracked, and goods movements for material consumption and goods receipt are recorded.
**Order Confirmation and Settlement:**
Once production is completed, order confirmations are processed. This involves recording actual production times, quantities, and any deviations from the plan. Finally, [production orders](https://www.sapmasters.in/sap-pp-training-in-bangalore/) are settled to account for production costs and variances.
**Advanced Features in SAP PP:**
**Long-Term Planning (LTP):**
LTP helps in creating simulations for future planning periods. It allows organizations to analyze the impact of different scenarios on production and capacity.
**Capacity Requirements Planning (CRP):**
CRP evaluates the capacity requirements of production orders. It helps in identifying and resolving [capacity constraints](https://www.sapmasters.in/sap-pp-training-in-bangalore/) by adjusting work center schedules.
**Shop Floor Control:**
This feature manages and monitors the production activities on the shop floor. It includes functionalities like dispatching, scheduling, and tracking work progress.
**Repetitive Manufacturing:**
For industries with [high-volume, low-variety production](https://www.sapmasters.in/sap-pp-training-in-bangalore/), repetitive manufacturing allows streamlined planning and execution of production processes.
**Integration with Other SAP Modules:**
SAP PP is closely integrated with other SAP modules such as:
SAP MM (Materials Management)
For procurement and inventory management.
SAP SD (Sales and Distribution)
To ensure production meets customer demands.
SAP FICO (Financial Accounting and Controlling)
To track production costs and manage budgets.
SAP QM (Quality Management)
For maintaining quality standards in production.
**Conclusion:**
SAP PP plays a vital role in optimizing production processes, improving resource utilization, and ensuring timely delivery of products. Its comprehensive features and [integration capabilities](https://www.sapmasters.in/sap-pp-training-in-bangalore/) make it an essential tool for manufacturing organizations aiming to enhance their production efficiency. | mylearnnest | |
1,864,745 | How to create a layout switcher with Tailwind CSS and JavaScript | Today we are recreating a layout switcher we did with Tailwind CSS and Allpine JS but with Vainilla... | 0 | 2024-05-25T09:53:57 | https://dev.to/mike_andreuzza/how-to-create-a-layout-switcher-with-tailwind-css-and-javascript-2c7k | programming, javascript, tailwindcss, tutorial |
Today we are recreating a layout switcher we did with Tailwind CSS and Allpine JS but with Vainilla JavaScript.
[Read the article,See it live and get code](https://lexingtonthemes.com/tutorials/how-to-create-a-grid-toggle-with-tailwind-css-and-javascript/)
| mike_andreuzza |
1,864,744 | aviator online games | https://aviator-online-games.com/ Take to the skies in Aviator, the addictive online game where you... | 0 | 2024-05-25T09:51:58 | https://dev.to/aviator9/aviator-online-games-3ei | [https://aviator-online-games.com/
](https://aviator-online-games.com/
)Take to the skies in Aviator, the addictive online game where you navigate your plane through a series of challenging obstacles and collect power-ups along the way. With easy-to-use controls and a fast-paced gameplay, Aviator is perfect for players of all skill levels. Visit our website for in-depth guides and strategies to help you become a master pilot and dominate the leaderboards. Don't miss out on the high-flying action in Aviator! Play right now!
| aviator9 | |
1,864,743 | I built my first app entirely on google's project idx | I built my first app entirely on Google’s Project IDX! Here are my key takeaways: 1/ ⚡ Speedy... | 0 | 2024-05-25T09:50:36 | https://dev.to/rono0365/i-built-my-first-app-entirely-on-googles-project-idx-e25 | flutter, projectidx, google, mobile | [](https://x.com/Rono_Kenya/status/1791855406160966021)
I built my first app entirely on Google’s Project IDX!
Here are my key takeaways:
1/ ⚡ Speedy Development: The development process is impressively fast with a good internet connection. Definitely a game changer!
2/ ⚙️ Configuration Challenges: When adding an existing project, IDX should automatically configure system settings. For example, running dart --fix or adjusting Java versions was a bit cumbersome and took me 2 hours to sort out.
3/ 📱 Android Emulator Limitations: The provided x86 Android emulators struggle with building apps for release. Plus, I faced issues downloading the APK to my computer.
Overall, Project IDX is a promising tool with a few areas for improvement. Excited to see where it goes! 🚀
here's a link to the video i posted it on twitter/X :
[here's the video](https://x.com/Rono_Kenya/status/1791855406160966021) | rono0365 |
1,864,741 | Hyang Ja Teasdale | Hyang Ja Teasdale, a writer from Somerset, UK, defies convention with her eclectic and avant-garde... | 0 | 2024-05-25T09:41:52 | https://dev.to/hyangjateasdale/hyang-ja-teasdale-1hb5 | write, uk | Hyang Ja Teasdale, a writer from Somerset, UK, defies convention with her eclectic and avant-garde approach to storytelling. Her work pushes the boundaries of traditional genres, embracing surrealism and magical realism. A champion of artistic freedom, Hyang Ja advocates for marginalized voices and fosters a community dedicated to pushing creative boundaries in Somerset's cultural landscape. | hyangjateasdale |
1,864,225 | day 06 | date:- 25 May, 2024. Function:- We can pass data into the function and can then use it there. To use... | 0 | 2024-05-25T07:03:50 | https://dev.to/lordronjuyal/day-06-1p96 | python | date:- 25 May, 2024.
Function:- We can pass data into the function and can then use it there. To use this we have to define function parameters (variables especially for that function). Syntax is- def func_name( parameter1, parameter2):
Now we have to call the function and pass value, syntax for that is- func_name( argument1, argument2)
Order is important here. Parameter is the name of the variable and arguments are the values. We can also specify which argument to which parameter at the time of calling the function.
eg func_name(parameter2=argument2, parameter1=argument1):
Order in this case doesn't matter.
Dictionary:- It's a data structure in which we store data in key-value pairs. Each key needs to be unique. Value can be another data structure.
> Syntax- dic = {key1 : value1 , key2 : value2, }
> empty dic = {} # same thing can be used to clear a dictionary
> to access a value- dic[key] # we need to know key
> to add a key or change previous key's value- dic[key]=value
> to delete a key- del dic[key]
> to loop- 1) for key in dic:
2) for key, value in dic.items():
Functions I learned:-
1. math.ceil(x) - this will return the smallest integer greater than or equal to x. eg it will change 5.2 t0 6. round will return 5 in this case. We have to import math module for this.
2. math.sqrt(x) - it will return square root of x.
3. sum(list) - Gives sum of the list, provided all items are numbers.
4. list.index(item) - This will return the index(base 0) of the item if present in the list. It will only return the index of the first item it will find from the left if multiple are present. Also, if the item is not found it will cause an error, so better check with - if item in list: in the first place.
Programs I made:
1) Prime number checker (between 1 to 100):
 | lordronjuyal |
1,864,740 | The Evolution of Cloud Computing: Understanding IaaS, PaaS, and SaaS | In this blog, we'll dive into the three Cloud service models—Infrastructure as a Service (IaaS),... | 0 | 2024-05-25T09:41:47 | https://dev.to/hr21don/the-evolution-of-cloud-computing-understanding-iaas-paas-and-saas-4cel | digital, transformation, ai, webdev |
In this blog, we'll dive into the three Cloud service models—Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS)—and discuss how cloud computing has transformed over the years.
## The Evolution of Cloud Computing
The concept of cloud computing dates back to the 1960s when computer scientist John McCarthy suggested that computing could be sold as a utility. However, it wasn't until the early 2000s that cloud computing began to take shape as we know it today. Amazon Web Services (AWS) launched its Elastic Compute Cloud (EC2) in 2006, marking the beginning of a new era.
The momentum of cloud computing has shifted towards managed infrastructure and managed services.
**Deliver products Services.**
- More Quickly
- More reliably
**Serverless**
- Allows developers to concentrate on code.
- No infrastructure management needed.
## Understanding IaaS, PaaS, and SaaS
**1. Infrastructure as a Service (IaaS)**
IAAS provides raw compute resources over the internet. They can scale resources up or down based on demand, paying for what they use.
Key benefits include:
- Reduced Capital expenses
- Reduced flexibility and scability.
**Examples Include:**
- [AWS EC2](https://aws.amazon.com/ec2/)
- [Microsoft Azure](https://azure.microsoft.com/en-us/get-started/)
**2. Platform as a Service (PaaS)**
PaaS provides access to infrastructure required by applications over the internet. It allows developers to build, test, and deploy applications without worrying about underlying infrastructure.
Key benefits include:
- Reducing time-to-market
- Streamlined environment and simplified management
**Examples Include:**
- [Heroku](https://www.heroku.com/)
**3. Software as a Service (SaaS)**
SaaS provides software applications that are consumed directly over the internet, on a subscription basis. End-Users can access software through a web browser, eliminating the need for installations or maintenance.
Key benefits include:
- Regular updates
- Security Enhancements
**Examples Include:**
- [Salesforce](https://www.salesforce.com/products/)
## Recap
Understanding IaaS, PaaS, and SaaS is crucial for businesses and individuals looking to leverage the full potential of the cloud. As we look ahead, the continuous innovation in cloud services promises to drive further advancements and opportunities in the digital era. | hr21don |
1,864,739 | What is an AI Aggregator? | Hey there, fellow tech enthusiasts! Today, we're diving into the fascinating world of AI aggregators... | 0 | 2024-05-25T09:36:50 | https://dev.to/foxinfotech/what-is-an-ai-aggregator-3kn5 | ai, saas, productivity | Hey there, fellow tech enthusiasts! Today, we're diving into the fascinating [world of AI aggregators](https://medium.com/@vinishkapoor/top-ai-tool-aggregators-f4fbf3fd0184) – a concept that's rapidly gaining traction in the ever-evolving landscape of artificial intelligence. Buckle up, because this is going to be an exhilarating ride through the realms of innovation and cutting-edge technology.
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##Streamlining Your Workflow, One Tool at a Time
Now, let's talk about the benefits of using an AI aggregator. First and foremost, it streamlines your workflow by eliminating the need to juggle multiple tools and platforms. Say goodbye to the frustration of constantly switching between applications and hello to a seamless, integrated experience.
Secondly, AI aggregators often offer customization options, allowing you to tailor the tools to your specific needs. Whether you're a small business owner, a researcher, or a developer, these platforms cater to a wide range of users, ensuring that you have access to the tools and resources you need to succeed.
##Continuous Learning and Skill Development
But that's not all! AI aggregators also provide a platform for continuous learning and skill development. With access to a wealth of resources, tutorials, and community forums, you can stay up-to-date with the latest advancements in AI and hone your skills to become a true AI wizard.
##Security and Privacy: A Top Priority
Now, I know what you're thinking: "This all sounds great, but what about security and privacy?" Fear not, my tech-savvy friends! Reputable AI aggregators prioritize data security and privacy, implementing robust measures to protect your sensitive information and ensure that your data remains safe and secure.
##Embracing the Future, One Aggregator at a Time
As we move forward into an increasingly AI-driven world, the importance of AI aggregators cannot be overstated. They represent a paradigm shift in how we interact with and leverage these powerful technologies, empowering individuals and businesses alike to unlock new realms of innovation and productivity.
So, what are you waiting for? Dive into the world of AI aggregators and experience the future of technology today. Whether you're a seasoned AI pro or just dipping your toes into this exciting field, these platforms offer a wealth of opportunities to explore, learn, and create.
Remember, the future belongs to those who embrace change and harness the power of cutting-edge technologies. So, let's embark on this journey together and shape the AI-driven world of tomorrow! | foxinfotech |
1,864,738 | Unlock the potential of AI in special needs education! #AIForSpecialNeeds #InclusiveEducation | 🌟 Join Our Free Webinar! 🌟 Discover how AI can transform the lives of individuals with special needs!... | 0 | 2024-05-25T09:35:09 | https://dev.to/dms/unlock-the-potential-of-ai-in-special-needs-education-aiforspecialneeds-inclusiveeducation-3i3n | ai, specialeducation | 🌟 **Join Our Free Webinar!** 🌟
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1,864,710 | How to build an HTML to PDF app in 5 minutes | Today, I will explain how to create an app to convert HTML into PDFs with just a simple logic.... | 0 | 2024-05-25T09:33:23 | https://dev.to/anmolbaranwal/how-to-build-an-html-to-pdf-app-in-5-minutes-92e | nextjs, webdev, programming, javascript | Today, I will explain how to create an app to convert HTML into PDFs with just a simple logic. Without using any external library!
We will use BuildShip for creating APIs, a platform that allows you to visually create backend cloud functions, APIs, and scheduled jobs, all without writing a single line of code.
We will do it in two steps:
1. Making API in BuildShip.
2. Creating a frontend app and the complete integration.
Let's do it.
---
## 1. Making API in BuildShip.
Login on [BuildShip](https://buildship.com/) and go to the dashboard. This is how it looks!
There are a lot of options available which you can explore yourself. For now, you need to create a new project.
You can add a new trigger by clicking on the "Add Trigger" button. For this example, we will use a REST API call as our trigger. We specify the path as "HTML-to-PDF" and the HTTP method as POST.
We have to add a few nodes to our workflow. BuildShip offers a variety of nodes and for this example, we will be adding the `UUID Generator node`, followed by the `HTML to PDF` node to our workflow.
If you're wondering, The UUID Generator node generates a unique identifier, and we are going to use this as the name for our generated file to be stored.
Now, we can add the "HTML to PDF" node. This node has three inputs:
- the HTML content.
- Options to configure the returned PDF.
- the file path to store the generated PDF file.
Keep the values as shown in the image below (text would be confusing).
<figcaption>HTML Content</figcaption>
<figcaption>Options</figcaption>
<figcaption>We will keep the path file as UUID so it's unique</figcaption>
The options are clear on their own and appropriate for the first time.
Now you just need to add a node `Generate Public Download URL` which generates a publicly accessible download URL from Buildship's Google Storage Cloud storage file path, and finally a `return node`.
There is also an option of checking the logs which could help you to understand the problem later on.
For the sake of testing, you can click on the `Test` button and then `Test Workflow`. It works correctly as shown!
Once everything is done, and the testing is completed. We are ready to ship our backend to the cloud. Clicking on the `Ship` button deploys our project and will do the work.
Now, you can copy your endpoint URL and test it in Postman or any other tool you prefer. It will definitely work.
Make a `POST` request and put the following sample in the raw body.
```
{
"html": "<html><body><h1>hey there what's up buddy</h1></body></html>"
}
```
As you can see below, it works fine. But showcasing this is a big problem. So, we're going to build a fantastic frontend to implement it.
---
## 2. Creating a frontend app and the complete integration.
I will be using Next.js + Tailwind + TypeScript for the frontend.
I have attached the repo and deployed link at the end.
I'm using [this template](https://github.com/Anmol-Baranwal/Nextjs-TypeScript-Tailwind-Template), which has proper standards and other stuff that we need. I have made it myself, and you can read the readme to understand what is available.
Directly use it as a template for creating the repo, clone it, and finally install the dependencies using the command `npm i`.
I'm not focusing on accessibility otherwise I would have used Shadcn/ui.
Let's start building it.
Create a Button component under `components/Button.tsx`.
```typescript
import React, { FC, ReactNode, MouseEventHandler } from 'react'
import { Icons } from './icons'
interface ButtonProps {
onClick: MouseEventHandler<HTMLButtonElement>
children: ReactNode
}
const Button: FC<ButtonProps> = ({ onClick, children }) => (
<button
onClick={onClick}
className="flex items-center justify-center rounded-md border-2 border-text-100 bg-black px-8 py-4 text-white transition-all duration-300 hover:bg-black/90"
>
{children}
<Icons.download className="ml-2 h-4 w-4 text-white" />
</button>
)
export default Button
```
The icons component will already be there in the template, so you just need to download the icons or attach your own SVG (the code is already there).
Let's create the main `page.tsx` under `src/app`.
```typescript
'use client'
import { useState } from 'react'
import Button from '@/components/Button'
import Link from 'next/link'
import { sampleHtml } from '@/data/sampleHtml'
export default function HTML2PDF() {
const [isLoading, setIsLoading] = useState(false)
const [fetchUrl, setFetchUrl] = useState('')
const [htmlCode, setHtmlCode] = useState('')
const handleSampleCodeClick = () => {
setHtmlCode(sampleHtml)
}
const handleConvertClick = async () => {
setIsLoading(true)
try {
const response = await fetch('https://pjdmuj.buildship.run/html-to-pdf', {
method: 'POST',
body: JSON.stringify({ html: htmlCode }),
headers: {
'Content-Type': 'application/json',
},
})
const data = await response.text()
setFetchUrl(data)
console.log({ data })
} catch (error) {
console.error('Error converting HTML to PDF:', error)
}
setIsLoading(false)
}
return (
<div className="flex h-screen items-center justify-center pt-0">
<div className="flex w-full flex-col items-center justify-center space-y-1 dark:text-gray-100">
<h1 className="bg-gradient-to-r from-black to-gray-500 bg-clip-text pb-3 text-center text-3xl font-bold tracking-tighter text-transparent md:text-7xl/none">
HTML to PDF Converter
</h1>
<p className="sm:text-md mx-auto max-w-[650px] pb-1 pt-1 text-gray-600 md:py-3 md:text-xl lg:text-2xl">
Paste the html code and convert it.
</p>
<p
className="text-md mx-auto cursor-pointer pb-6 text-[#A855F7] underline"
onClick={handleSampleCodeClick}
>
Use sample code
</p>
{isLoading ? (
<div className="flex items-center justify-center">
<div className="loader"></div>
</div>
) : (
<div className="flex w-80 flex-col items-center justify-center">
<textarea
value={htmlCode}
onChange={(e) => setHtmlCode(e.target.value)}
className="mb-4 w-full rounded-lg border border-gray-400 p-2 shadow-sm shadow-black/50"
placeholder="Paste HTML code here"
rows={8}
/>
{fetchUrl ? (
<div className="mt-4">
<Link
target="_blank"
href={fetchUrl}
className="w-40 rounded-md bg-black px-8 py-4 text-white transition-all duration-300 hover:bg-black/90"
download
>
Download PDF
</Link>
</div>
) : (
<div className="mt-4">
<Button onClick={handleConvertClick}>Convert to PDF</Button>
</div>
)}
</div>
)}
</div>
</div>
)
}
```
> The output.
The code is self-explanatory but let's break it down.
There is a loading state to show an SVG when the request is handled on the backend, `fetchUrl` for the final url of the PDF, and the `htmlCode` that will be used as a body for the API request.
```javascript
const [isLoading, setIsLoading] = useState(false)
const [fetchUrl, setFetchUrl] = useState('')
const [htmlCode, setHtmlCode] = useState('')
```
I have imported sample data from `data/sampleHtml.ts` so that a user can directly check the functionality by clicking on `use sample code`.
```
// sampleHtml.ts
export const sampleHtml = `<html>
<body>
<h1>Hey there, I'm your Dev.to buddy. Anmol!</h1>
<p>You can connect me here.</p>
<p><a href='https://github.com/Anmol-Baranwal' target='_blank'>GitHub</a> <a href='https://www.linkedin.com/in/Anmol-Baranwal/' target='_blank'>LinkedIn</a> <a href='https://twitter.com/Anmol_Codes' target='_blank'>Twitter</a></p>
</body>
</html>
`
```
```
use it on the page.tsx
import { sampleHtml } from '@/data/sampleHtml'
...
const handleSampleCodeClick = () => {
setHtmlCode(sampleHtml)
}
...
<p className="text-md mx-auto cursor-pointer pb-6 text-[#A855F7] underline" onClick={handleSampleCodeClick} > Use sample code </p>
```
The API request is sent when the button is clicked.
```typescript
const handleConvertClick = async () => {
setIsLoading(true)
try {
const response = await fetch('https://pjdmuj.buildship.run/html-to-pdf', {
method: 'POST',
body: JSON.stringify({ html: htmlCode }),
headers: {
'Content-Type': 'application/json',
},
})
const data = await response.text()
setFetchUrl(data)
console.log({ data })
} catch (error) {
console.error('Error converting HTML to PDF:', error)
}
setIsLoading(false)
}
....
{isLoading ? (
<div className="flex items-center justify-center">
<div className="loader"></div>
</div>
) : (
<div className="flex w-80 flex-col items-center justify-center">
<textarea
value={htmlCode}
onChange={(e) => setHtmlCode(e.target.value)}
className="mb-4 w-full rounded-lg border border-gray-400 p-2 shadow-sm shadow-black/50"
placeholder="Paste HTML code here"
rows={8}
/>
{fetchUrl ? (
<div className="mt-4">
<Link
target="_blank"
href={fetchUrl}
className="w-40 rounded-md bg-black px-8 py-4 text-white transition-all duration-300 hover:bg-black/90"
download
>
Download PDF
</Link>
</div>
) : (
<div className="mt-4">
<Button onClick={handleConvertClick}>Convert to PDF</Button>
</div>
)}
</div>
)}
```
You can use `console.log` to check the data received.
<figcaption>using sample code</figcaption>
<figcaption>final pdf</figcaption>
Many developers still prefer using different useState (including myself) for the states so it's easier to address particular changes but let's optimize this further and use route handlers.
Let's change the state.
```typescript
'use client'
import { useState } from 'react'
import Button from '@/components/Button'
import Link from 'next/link'
import { sampleHtml } from '@/data/sampleHtml'
export default function HTML2PDF() {
const [state, setState] = useState({
isLoading: false,
fetchUrl: '',
htmlCode: '',
})
// Destructure state into individual variables
const { isLoading, fetchUrl, htmlCode } = state
const handleSampleCodeClick = () => {
setState({ ...state, htmlCode: sampleHtml })
}
const handleConvertClick = async () => {
setState((prevState) => ({ ...prevState, isLoading: true }))
try {
const response = await fetch('https://pjdmuj.buildship.run/html-to-pdf', {
method: 'POST',
body: JSON.stringify({ html: htmlCode }),
headers: {
'Content-Type': 'application/json',
},
})
const data = await response.text()
setState((prevState) => ({ ...prevState, fetchUrl: data }))
} catch (error) {
console.error('Error converting HTML to PDF:', error)
}
setState((prevState) => ({ ...prevState, isLoading: false }))
}
return (
<div className="flex h-screen items-center justify-center pt-0">
<div className="flex w-full flex-col items-center justify-center space-y-1 dark:text-gray-100">
<h1 className="bg-gradient-to-r from-black to-gray-500 bg-clip-text pb-3 text-center text-3xl font-bold tracking-tighter text-transparent md:text-7xl/none">
HTML to PDF Converter
</h1>
<p className="sm:text-md mx-auto max-w-[650px] pb-1 pt-1 text-gray-600 md:py-3 md:text-xl lg:text-2xl">
Paste the html code and convert it.
</p>
<p
className="text-md mx-auto cursor-pointer pb-6 text-[#A855F7] underline"
onClick={handleSampleCodeClick}
>
Use sample code
</p>
{isLoading ? (
<div className="flex items-center justify-center">
<div className="loader"></div>
</div>
) : (
<div className="flex w-80 flex-col items-center justify-center">
<textarea
value={htmlCode}
onChange={(e) => setState({ ...state, htmlCode: e.target.value })}
className="mb-4 w-full rounded-lg border border-gray-400 p-2 shadow-sm shadow-black/50"
placeholder="Paste HTML code here"
rows={8}
/>
{fetchUrl ? (
<div className="mt-4">
<Link
target="_blank"
href={fetchUrl}
className="w-40 rounded-md bg-black px-8 py-4 text-white transition-all duration-300 hover:bg-black/90"
download
>
Download PDF
</Link>
</div>
) : (
<div className="mt-4">
<Button onClick={handleConvertClick}>Convert to PDF</Button>
</div>
)}
</div>
)}
</div>
</div>
)
}
```
To clear things up.
- state holds an object with properties for isLoading, fetchUrl, and htmlCode.
- setState is used to update the state object.
- Destructuring is used to extract individual state variables.
- Each state update spreads the existing state and only updates the relevant property.
Let's use the route handler now.
Create a new file under `src/app/api/pdftohtml/route.ts`
```typescript
import { NextResponse, NextRequest } from 'next/server'
interface HtmlToPdfRequest {
html: string
}
export async function POST(req: NextRequest) {
try {
// console.log('Request body:', req.body)
const requestBody = (await req.json()) as HtmlToPdfRequest
if (!requestBody || !requestBody.html) {
throw new Error('req body is empty')
}
const { html } = requestBody
// console.log('HTML:', html)
const response = await fetch('https://pjdmuj.buildship.run/html-to-pdf', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ html }),
})
// console.log('Conversion response status:', response.status)
if (!response.ok) {
throw new Error('Failed to convert HTML to PDF')
}
const pdfUrl = await response.text()
// console.log('PDF URL:', pdfUrl)
return NextResponse.json({ url: pdfUrl }) // respond with the PDF URL
} catch (error) {
console.error('Error in converting HTML to PDF:', error)
return NextResponse.json({ error: 'Internal Server Error' })
}
}
```
I have kept the console statements as comments so you can test things when using it. I used it myself!
<figcaption>we are getting the pdf url correctly</figcaption>
You can read more about `NextApiRequest`, and `NextApiResponse` on [nextjs docs](https://nextjs.org/docs/pages/building-your-application/routing/api-routes#adding-typescript-types).
I researched it and found that `NextApiRequest` is the type you use in the pages router API Routes while `NextRequest` is the type you use in the app router Route handlers.
We need to use it in `page.tsx` as follows:
```typescript
...
const handleConvertClick = async () => {
setState((prevState) => ({ ...prevState, isLoading: true }))
try {
const response = await fetch('/api/htmltopdf', {
method: 'POST',
body: JSON.stringify({ html: htmlCode }),
headers: {
'Content-Type': 'application/json',
},
})
const data = await response.json()
const pdfUrl = data.url
// console.log('pdf URL:', pdfUrl)
setState((prevState) => ({ ...prevState, fetchUrl: pdfUrl }))
} catch (error) {
console.error('Error in converting HTML to PDF:', error)
}
setState((prevState) => ({ ...prevState, isLoading: false }))
}
...
```
I also added a cute GitHub SVG effect at the corner which you can check at the deployed link. You can change the position of the SVG easily and clicking it will redirect you to the GitHub Repository :)
- GitHub Repository: [github.com/Anmol-Baranwal/Html2PDF](https://github.com/Anmol-Baranwal/Html2PDF)
- Deployed Link: https://html2-pdf.vercel.app/
---
It may seem simple but you can learn a lot by building simple yet powerful apps.
We can improve this simple use case and build so many cool ideas using the conversion of HTML to PDF.
I was trying BuildShip (open source), and I made this to learn new stuff. There are so many options and integrations which you should definitely explore.
| If you like this kind of stuff, <br /> please follow me for more :) | <a href="https://twitter.com/Anmol_Codes"><img src="https://img.shields.io/badge/Twitter-d5d5d5?style=for-the-badge&logo=x&logoColor=0A0209" alt="profile of Twitter with username Anmol_Codes" ></a> <a href="https://github.com/Anmol-Baranwal"><img src="https://img.shields.io/badge/github-181717?style=for-the-badge&logo=github&logoColor=white" alt="profile of GitHub with username Anmol-Baranwal" ></a> <a href="https://www.linkedin.com/in/Anmol-Baranwal/"><img src="https://img.shields.io/badge/LinkedIn-0A66C2?style=for-the-badge&logo=linkedin&logoColor=white" alt="profile of LinkedIn with username Anmol-Baranwal" /></a> |
|------------|----------|
"Write more, inspire more!"
 | anmolbaranwal |
1,864,737 | Ganesh Packers And Movers | Ganesh Packers and Movers is the Best leading and highly professional packers and movers for Packing,... | 0 | 2024-05-25T09:25:39 | https://dev.to/dilip_74/ganesh-packers-and-movers-51ac | packers, movers, transportationservices | Ganesh Packers and Movers is the Best leading and highly professional packers and movers for Packing, Moving, Loading, Unloading, Unpacking and Transportation service provider based in Boisar, Palghar and also out of Mumbai. We provide Total Relocation Solutions for our customers and maintain a higher level of satisfaction and happiness, as a result we get our 75% of business from the reference of our endless list of satisfied customers. Our success story is incomplete without the mention of our staff who has worked day in and day out to reach this position of pride. We have a team of expert professionals who are well versed in there area of operation to ensure trouble free and comfortable transportation, we discuss all the levels of our services with our customer. | dilip_74 |
1,864,735 | How to Use Gamification Strategies to Boost Poker App Retention in 2024 | In the competitive world of online gaming, player retention is a crucial metric that determines the... | 0 | 2024-05-25T09:23:34 | https://dev.to/mathewc/how-to-use-gamification-strategies-to-boost-poker-app-retention-in-2024-553i | webdev, gamedev, devops | In the competitive world of online gaming, player retention is a crucial metric that determines the long-term success of an app. For poker apps, retaining players is particularly challenging due to the plethora of available options. One effective way to enhance player retention is through the use of gamification strategies. By integrating elements that make the game more engaging and rewarding, developers can significantly increase player loyalty and satisfaction.
**What are Gamification Strategies?**
Gamification involves incorporating game-like elements into non-game contexts to boost engagement and motivation. In the context of poker apps, this means integrating features such as points, badges, leaderboards, challenges, and rewards. A reputable **[poker game development company](https://innosoft-group.com/poker-game-development/)** can leverage these strategies to enhance the gaming experience, making it more interactive and enjoyable for players.
**How to Use Gamification Strategies to Boost Poker App Retention
Points and Rewards System:**
Implementing a points system where players earn points for various actions (e.g., winning hands, participating in tournaments, logging in daily) can significantly boost engagement. These points can be redeemed for rewards such as in-game currency, special items, or access to exclusive features.
**Levels and Progression:**
Introducing levels and progression paths gives players a sense of achievement. As players advance through levels, they can unlock new content, features, or higher-stakes tables. This keeps players motivated to continue playing and improving their skills.
**Daily Challenges and Missions:**
Offering daily challenges or missions that players need to complete to earn rewards can drive daily active usage. These challenges can vary in difficulty and offer different types of rewards, keeping the gameplay fresh and exciting.
**Leaderboards and Competitions:**
Leaderboards create a competitive environment where players can see how they stack up against others. Weekly or monthly competitions with attractive prizes can drive engagement and foster a sense of community among players.
**Social Integration:**
Integrating social features such as friend lists, in-game chat, and social media sharing options can enhance the sense of community. Players are more likely to return to the app if they can play with friends or brag about their achievements.
**Personalization:**
Offering personalized experiences based on player behavior and preferences can significantly boost retention. Personalized challenges, recommendations, and notifications can make players feel valued and engaged.
**Also Read: _[Top 5 Poker Game Development Companies 2024–2025](https://medium.com/@daniel-blogs/top-5-poker-app-development-companies-2022-2023-35fc3dc12816)_**
**What are the Benefits of Using Gamification in Poker App?
Increased Player Engagement:**
Gamification makes the app more engaging by providing players with constant goals and rewards. This keeps them interested and encourages longer play sessions.
**Enhanced Player Loyalty:**
Players who feel rewarded and recognized are more likely to stay loyal to the app. Gamification builds a sense of achievement and progression, which fosters loyalty.
**Higher Retention Rates:**
By continuously offering new challenges, rewards, and interactive features, gamification helps retain players for longer periods. This is crucial for the app’s success and profitability.
**Better User Experience:**
Gamification improves the overall user experience by making the app more fun and interactive. This positive experience encourages players to recommend the app to others, driving organic growth.
**Increased Revenue:**
Engaged and retained players are more likely to make in-app purchases, participate in premium features, or subscribe to memberships. Gamification can thus directly impact the app’s revenue.
**Final Words:**
Implementing gamification strategies in your poker app can be a game-changer in terms of player retention and engagement. By creating a rewarding and interactive environment, you can keep your players coming back for more. Collaborating with a professional poker game development company ensures that you integrate these strategies effectively and create a top-notch gaming experience. To truly excel in this endeavor, it’s essential to **[hire poker game developers](https://pokergamedevelopers.com/hire-poker-game-developers/)** who are skilled in incorporating gamification elements and understand the nuances of player psychology. This will help you build a successful and profitable poker app that stands out in the crowded market. | mathewc |
1,864,734 | Unlocking the Power of SEO: Why Your Business Needs Search Engine Optimization | In today's digital age, having a robust online presence is no longer optional—it's essential. With... | 0 | 2024-05-25T09:23:32 | https://dev.to/seohelp_360_cd6a5738245bf/unlocking-the-power-of-seo-why-your-business-needs-search-engine-optimization-49lb | seo, webdev | In today's digital age, having a robust online presence is no longer optional—it's essential. With millions of websites vying for attention, how can your business stand out? The answer lies in Search Engine Optimization (SEO). At [SEOHELP360 ](https://seohelp360.com/
)we're dedicated to helping businesses like yours achieve top rankings in search engine results, driving organic traffic, and ultimately, boosting your bottom line. But what exactly is SEO, and why is it so crucial for your success? Let's dive in. | seohelp_360_cd6a5738245bf |
1,864,722 | Responsive Website Design: Enhancing User Experience In India | Responsive Website Design in India Responsive website design refers to the approach where web pages... | 0 | 2024-05-25T09:17:39 | https://dev.to/saumya27/responsive-website-design-enhancing-user-experience-in-india-46oo | responsive, webdev, ui | **Responsive Website Design in India**
Responsive website design refers to the approach where web pages render well on a variety of devices and window or screen sizes. It ensures that a website is usable and aesthetically pleasing on devices ranging from desktop computers to tablets and smartphones. In India, responsive website design is particularly crucial given the diverse user base and the high prevalence of mobile internet usage.
**Key Features and Benefits**
**1. Enhanced User Experience:**
Mobile-Friendly: Ensures websites are easily navigable and functional on mobile devices, which constitute a significant portion of internet usage in India.
Consistent Experience: Provides a seamless user experience across all devices, improving user satisfaction and engagement.
**2. SEO Advantages:**
Google’s Mobile-First Indexing: Google prioritizes mobile-friendly sites in its search results, making responsive design essential for good SEO performance.
Improved Rankings: A responsive design can improve your search engine rankings, leading to higher visibility and traffic.
**3. Cost-Effectiveness:**
Single Site Maintenance: Managing a single website that adapts to all devices is more cost-effective than maintaining separate versions for desktop and mobile.
Future-Proof: Responsive design adapts to new devices and screen sizes, ensuring longevity and reducing the need for frequent redesigns.
**4. Faster Load Times:**
Optimized Performance: Responsive websites are optimized for performance, ensuring faster load times, which is crucial for retaining users and reducing bounce rates.
**5. Broader Reach:**
Accessibility: Ensures that your website is accessible to a broader audience, including users with different devices and screen sizes.
Market Penetration: In a country like India with diverse internet users, responsive design helps in reaching users from urban to rural areas effectively.
**Key Considerations for Responsive Website Design in India**
**Mobile-First Approach:**
Primary Focus: Given the high mobile internet penetration, start with designing for mobile devices first and then scale up to larger screens.
Touch-Friendly Design: Ensure that buttons and links are easily tappable and that the overall design is touch-friendly.
**Bandwidth Optimization:**
Lightweight Pages: Optimize images, use lazy loading, and minimize the use of heavy scripts to ensure fast loading even on slower internet connections.
Efficient Code: Write clean, efficient code to improve performance and reduce load times.
**Local Preferences:**
Cultural Relevance: Consider local design preferences and cultural nuances to make the site more appealing to Indian users.
Local Languages: Incorporate multilingual support, especially for Hindi and other regional languages, to cater to a wider audience.
**Testing on Various Devices:**
Comprehensive Testing: Test the website on a variety of devices and browsers to ensure compatibility and a consistent experience across all platforms.
Real-World Scenarios: Simulate real-world usage scenarios, including varying network speeds and conditions, to ensure robustness.
**Leading Responsive Web Design Agencies in India**
**TCS (Tata Consultancy Services):**
Offers comprehensive web design and development services, including responsive design, for various industries.
**Wipro Digital:**
Provides end-to-end digital transformation services with a strong emphasis on responsive and mobile-friendly design.
Techuz InfoWeb:
Specializes in responsive web design and development, catering to startups and enterprises with innovative solutions.
**WebFX India:**
Known for creating visually appealing and highly functional responsive websites tailored to client needs.
**Mindtree:**
Delivers robust and scalable web solutions with a focus on user experience and responsive design.
**Conclusion**
[Responsive website design India](https://cloudastra.co/blogs/responsive-website-design-enhancing-user-experience-in-india), where the majority of internet users access the web through mobile devices. By adopting a responsive design, businesses can ensure a consistent and engaging user experience, improve their SEO rankings, and reach a broader audience. Collaborating with experienced web design agencies in India can help create a responsive, user-friendly, and future-proof website that meets the needs of a diverse and growing internet popul | saumya27 |
1,864,720 | Running Ollama and Open WebUI Self-Hosted With AMD GPU | Why Host Your Own Large Language Model (LLM)? While there are many excellent LLMs... | 0 | 2024-05-25T09:04:54 | https://dev.to/berk/running-ollama-and-open-webui-self-hosted-4ih5 | ai, llm, tutorial, productivity | ## Why Host Your Own Large Language Model (LLM)?
While there are many excellent LLMs available for VSCode, hosting your own LLM offers several advantages that can significantly enhance your coding experience. Below you can find some reasons to host your own LLM.
- Customization and Fine-Tuning
- Data Control and Security
- Domain Expertise
- Easy Switching Between Models
## Prerequisites
To host your own Large Language Model (LLM) for use in VSCode, you'll need a few pieces of hardware and software in place.
### Hardware Requirements
For this example, we'll be using a Radeon 6700 XT graphics card and a Ryzen 5 7600X processor on Linux. However, you can also host an LLM on Windows or macOS machines with compatible hardware.
- A modern CPU (at least quad-core) with high-performance capabilities
- A suitable graphics card with OpenCL or HIP support (Radeon or NVIDIA)
- At least 16 GB of RAM for smooth performance
### Software Prerequisites
To get started, you'll need to install the packages you need on your Linux machine are:
- Docker
- GPU drivers.
- Nvidia Container Toolkit (if you use Nvidia GPU)
> [!tip]
> If you don't have docker installed already, please check the [Docker Installation](https://docs.docker.com/engine/install/) document.
It doesn't matter if you are using Arch, Debian, Ubuntu, Mint etc. Since we will use containers, the environment will be the same.
Note that we won't be training our own LLM models; instead, we'll focus on hosting and running pre-trained models. This means you won't need a high-performance GPU or specialized hardware for model training.
With these prerequisites in place, you're ready to start setting up your LLM hosting environment!
## Deploying the AI
We will deploy two containers. One for the Ollama server which runs the LLMs and one for the Open WebUI which we integrate with the Ollama server from a browser.
To deploy Ollama, you have three options:
### Running Ollama on CPU Only (not recommended)
If you run the ollama image with the command below, you will start the Ollama on your computer memory and CPU.
```bash
docker run -d -v ollama:/root/.ollama -p 11434:11434 --name ollama ollama/ollama
```
> [!warning]
> This is not recommended if you have a dedicated GPU since running LLMs on with this way will consume your computer memory and CPU.
>
> Also running LLMs on the CPU are much slower than GPUs.
>
### Running Ollama on AMD GPU
If you have a AMD GPU that supports [ROCm](https://www.amd.com/en/products/software/rocm.html), you can simple run the `rocm` version of the Ollama image.
```bash
docker run -d --restart always --device /dev/kfd --device /dev/dri -v ollama:/root/.ollama -p 11434:11434 --name ollama ollama/ollama:rocm
```
If your AMD GPU doesn't support `ROCm` but if it is strong enough, you can still use your GPU to run Ollama server. I use that command to run on a Radeon 6700 XT GPU.
```bash
docker run -d --restart always --device /dev/kfd --device /dev/dri -v ollama:/root/.ollama -p 11434:11434 --name ollama -e HSA_OVERRIDE_GFX_VERSION=10.3.0 -e HCC_AMDGPU_TARGET=gfx1030 ollama/ollama:rocm
```
> [!info]
> If you run LLMs that are bigger than your GPUs memory, then they will be loaded partially on the GPU memory and RAM memory. This will cause a slow response time in your prompts.
### Running Ollama on Nvidia GPU
After you have successfully installed the [Nvidia Container Toolkit](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html#installation), you can run the commands below configure Docker to run with your GPU.
```bash
sudo nvidia-ctk runtime configure --runtime=docker && \
sudo systemctl restart docker
```
Now it's time to run the LLM container:
```bash
docker run -d --gpus=all -v ollama:/root/.ollama -p 11434:11434 --name ollama ollama/ollama
```
> [!info]
> If you run LLMs that are bigger than your GPUs memory, then they will be loaded partially on the GPU memory and RAM memory. This will cause a slow response time in your prompts.
### Verifying Installation
After you have deployed the Ollama container, you can manually check if the Ollama server is running successfully.
```bash
docker exec ollama ollama list
```
You won't see any LLM in the list because we haven't downloaded any.
## Deploying Web UI
We will deploy the Open WebUI and then start using the Ollama from our web browser.
Since our Ollama container listens on the host TCP 11434 port, we will run our Open WebUI like this:
```bash
docker run -d --network=host -v open-webui:/app/backend/data -e OLLAMA_BASE_URL=http://127.0.0.1:11434 --name open-webui --restart always ghcr.io/open-webui/open-webui:main
```
After the container is up, you can head to your browser and hit the http://localhost:8080 if Open WebUI is running on your own computer. If it's on another computer, you can use http://ip-address-or-domain:8080 to access Open WebUI from browser.
## Pulling LLM AI Models
Ollama provides LLMs ready to use with Ollama server. To view all the models, you can head to [Ollama Library](https://ollama.com/library).
Since my GPU has 12GB memory, I run these models:
- Name: `deepseek-coder:6.7b-instruct-q8_0` , Size: `7.2GB`: I use that LLM most of the time for my coding requirements.
- Name: `llama3:8b-instruct-q8_0` , Size: `8.5 GB`: I use that LLM to chat if I am writing emails or etc.
- Name: `deepseek-coder:33b-instruct-q4_0` , Size: `18 GB`: I use that LLM for challenging coding requirements.
You can paste the LLM name into the red box to pull the LLM image.
## Performance
If you want to see how the AI is performing, you can check the `i` button of response messages from AI.
At the first message to an LLM, it will take a couple of seconds to load your selected model.
As you can see below, the LLM took 9 seconds to get loaded. Then answered in 1 second.
The messages after the first one doesn't took that `load` time.
As you can see below, it started to response after 0.5 seconds and all the answer took 7.7 seconds.
Also you can check your GPU statics if you want to be sure about where the LLM is running.
For the AMD GPUs, you can use [radeontop](https://github.com/clbr/radeontop)
For Nvidia GPUs, you can use nvidia-smi.
This is my `radeontop` command outputs while a prompt is running:
## For More
If you like the post, you can head to my personal blog site and read more about DevOps, Linux, system engineering, and self-hosted applications for homelab!
{% embed https://burakberk.dev %}
| berk |
1,864,717 | Capturing named regex groups with JavaScript | One of my personal greatest discoveries in coding was the power of named regex groups in JavaScript.... | 0 | 2024-05-25T09:04:34 | https://medium.com/@rare/capturing-named-regex-groups-with-typescript-bb27d0a8c59c | regex, javascript | One of my personal greatest discoveries in coding was the power of named regex groups in JavaScript. While numbered groups can be useful, they often lead to confusing and hard-to-maintain code. Named groups, on the other hand, make our regular expressions more readable and our intentions clearer.
Imagine you are parsing a complex string with multiple pieces of data. Using numbered groups, you end up with a mess of indices. Named groups allow us to refer to each part of our regex match with meaningful names, making our code elegant and easy to understand.
## Capturing Named Regex Groups in JavaScript with Jest
Let’s dive into some examples to see how we can capture named regex groups using JavaScript. We’ll use Jest for testing our regex patterns.
First, let’s define a simple regex pattern to capture a date in the format “YYYY-MM-DD”:
```javascript
const dateRegex = /(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})/;
```
In this pattern, `year`, `month`, and `day` are named groups. Now, let's write a Jest test to ensure our regex works correctly:
```javascript
test('captures named groups for a date', () => {
const date = '2024-05-19';
const match = date.match(dateRegex);
expect(match?.groups?.year).toBe('2024');
expect(match?.groups?.month).toBe('05');
expect(match?.groups?.day).toBe('19');
});
```
Here, we use the groups property of the match object to access the named groups. The `?` operator ensures we handle cases where the match is null or undefined gracefully.
Let’s look at another example, capturing parts of an email address:
```javascript
const emailRegex = /(?<localPart>[a-zA-Z0-9._%+-]+)@(?<domain>[a-zA-Z0-9.-]+\.[a-zA-Z]{2,})/;
test('captures named groups for an email', () => {
const email = 'example.user@example.com';
const match = email.match(emailRegex);
expect(match?.groups?.localPart).toBe('example.user');
expect(match?.groups?.domain).toBe('example.com');
});
```
In this pattern, `localPart` and `domain` are the named groups. The Jest test verifies that our regex correctly captures these parts of the email address.
## Conclusion: The Joy of Named Groups
And so, after diving into the world of named regex groups in TypeScript, I’ve come to a delightful realization: named groups are like giving our regex matches a well-deserved promotion. No longer do they toil in the obscurity of numbered indices. Instead, they proudly wear their meaningful names, bringing clarity and joy to our code. So, the next time you find yourself tangled in a web of regex patterns, remember: named groups are your friends, here to make your coding life just a little bit brighter. | happycoding |
1,864,719 | Quick Comparison Of Public Cloud Computing Providers | Cloud Computing Providers Comparison: AWS, Azure, Google Cloud, IBM Cloud, and Oracle Cloud When... | 0 | 2024-05-25T09:01:18 | https://dev.to/saumya27/quick-comparison-of-public-cloud-computing-providers-48fd | docker, mongodb, javascript | **Cloud Computing Providers Comparison: AWS, Azure, Google Cloud, IBM Cloud, and Oracle Cloud**
When choosing a cloud computing provider, it’s essential to consider various factors such as services offered, pricing, performance, security, and customer support. Here's a detailed comparison of five major cloud providers: Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), IBM Cloud, and Oracle Cloud.
**1. Amazon Web Services (AWS)**
Overview:
Launch Year: 2006
Market Share: Leading
Strengths: Wide range of services, global infrastructure, mature ecosystem
Key Features:
Compute: EC2 instances, Lambda (serverless)
Storage: S3, Glacier
Database: RDS, DynamoDB, Aurora
AI/ML: SageMaker, Rekognition
Deployment: Elastic Beanstalk, ECS, EKS (Kubernetes)
Pros:
Extensive global network with numerous data centers
Broad service offerings covering all aspects of cloud computing
A strong ecosystem with a large community and extensive documentation
Cons:
Complex pricing structure
Can be overwhelming for beginners due to its vast array of services
**2. Microsoft Azure**
Overview:
- Launch Year: 2010
- Market Share: Second largest
- Strengths: Integration with Microsoft products, enterprise-friendly
Key Features:
Compute: Virtual Machines, Azure Functions (serverless)
Storage: Blob Storage, Disk Storage
Database: SQL Database, Cosmos DB
AI/ML: Azure Machine Learning, Cognitive Services
Deployment: App Service, AKS (Kubernetes)
Pros:
Excellent integration with Microsoft tools like Office 365, Dynamics, and Windows Server
Strong support for hybrid cloud solutions
Competitive pricing and enterprise agreements
Cons:
Documentation can be less comprehensive compared to AWS
Interface and user experience could be improved
**3. Google Cloud Platform (GCP)**
Overview:
- Launch Year: 2008
- Market Share: Growing rapidly
- Strengths: Data analytics, machine learning, Kubernetes support
Key Features:
Compute: Compute Engine, Cloud Functions (serverless)
Storage: Cloud Storage, Persistent Disks
Database: Cloud SQL, Bigtable, Firestore
AI/ML: AI Platform, TensorFlow
Deployment: App Engine, GKE (Kubernetes)
Pros:
Superior data analytics and machine learning capabilities
Excellent Kubernetes support (GKE)
Strong emphasis on open-source technologies
Cons:
Smaller range of services compared to AWS and Azure
Limited global reach compared to AWS and Azure
**4. IBM Cloud**
Overview:
- Launch Year: 2011
- Market Share: Niche market
- Strengths: AI, machine learning, enterprise solutions
Key Features:
Compute: Virtual Servers, Functions (serverless)
Storage: Cloud Object Storage, Block Storage
Database: Db2, Cloudant
AI/ML: Watson, AutoAI
Deployment: Kubernetes Service, OpenShift
Pros:
Strong AI and machine learning services with IBM Watson
Good support for hybrid cloud environments
Focused on enterprise solutions and industries like healthcare and finance
Cons:
Fewer data centers and regions compared to leading providers
Smaller ecosystems and community
**5. Oracle Cloud**
Overview:
- Launch Year: 2016
- Market Share: Growing
- Strengths: Database services, enterprise applications
Key Features:
Compute: Compute Instances, Functions (serverless)
Storage: Object Storage, Block Volumes
Database: Autonomous Database, Oracle Database
AI/ML: AI Platform, Data Science
Deployment: Kubernetes Engine, Oracle Linux
Pros:
Strong database solutions, particularly for Oracle databases
Competitive pricing, especially for existing Oracle customers
Focus on enterprise applications and workloads
Cons:
Limited range of services compared to AWS, Azure, and GCP
Smaller global presence and fewer data centers
**Pricing Comparison**
1. Pricing models vary significantly between providers and depend on the specific services used the region, and the usage pattern. Here’s a brief overview:
2. AWS: Pay-as-you-go model with free tier options; complex pricing structure with a wide range of pricing calculators and cost management tools.
3. Azure: Pay-as-you-go and reserved instances; offers free tier and pricing calculators.
4. GCP: Pay-as-you-go with sustained usage discounts; offers free tier and a simpler pricing model.
5. IBM Cloud: Pay-as-you-go, subscription, and reserved instances; free tier available.
6. Oracle Cloud: Pay-as-you-go with Universal Credits; offers a free tier and competitive pricing, especially for Oracle workloads.
**Conclusion**
When choosing a cloud computing provider, consider your specific needs, such as the types of services required, budget, and integration with existing tools and workflows. AWS offers the most extensive range of services and global reach, Azure provides excellent integration with Microsoft products, GCP excels in data analytics and machine learning, IBM Cloud focuses on AI and enterprise solutions, and Oracle Cloud is ideal for Oracle database environments and enterprise applications. Evaluating these factors will help you select the best provider for your particular use case. | saumya27 |
1,864,718 | Visualize Your Code: Effortlessly Create Images in Seconds | Generate images from code snippets and terminal output with Freeze as a programmatic alternative to... | 0 | 2024-05-25T09:01:08 | https://gsantoro.dev/posts/images-from-code/ | webdev, coding | Generate images from code snippets and terminal output with Freeze as a programmatic alternative to Carbon.
- 🚀 Automate Code Snippet Images: Discover Freeze, a CLI tool that generates images from code snippets, offering a programmatic alternative to Carbon.
- 🎨 Customization and Formats: Customize your images with various settings and export them as PNG, WebP, or SVG formats.
- ⚙️ Overcoming Limitations: Despite some limitations, like imperfect WebP support, Freeze is a valuable tool for developers to create and share polished code visuals.
Read the full article at https://gsantoro.dev/posts/images-from-code/ | cloudnative_eng |
1,864,716 | AWS Storage Gateway for Home Backups | World Backup Day is long behind us but it's never too late. I was thinking about methods to backup my... | 0 | 2024-05-25T09:01:03 | https://pabis.eu/blog/2024-05-25-Storage-Gateway-Home-Backup.html | storagegateway, backup, aws | World Backup Day is long behind us but it's never too late. I was thinking about methods to backup my data at home. I have some USB disks, old computers that still contain some data - maybe valuable, maybe not.
Usual cloud solutions might be of decent price - both MEGA and iCloud cost 10€ per month for 2TB. This is comparable to S3 Glacier Flexible retrieval. However, if I decided to create rules for moving to Deep Archive, the price goes down quickly - less than 3€ per month for 2TB. What is more I don't have full insight into how is the data handled by user-friendly cloud providers. With AWS I know that I can configure cross-region replication and the data is kept in multiple AZs (except One Zone IA). Nevertheless, in this case I am still limited to a single provider. There are still other problems like privacy, data sovereignty and jurisdiction.
One of the issues with S3 is finding a decent client to interface with it. There are some open-source and commercial providers out there: S3 Explorer, S3 Pro, Cyberduck, Filezilla to name a few. But AWS has its own offerings as well, so why not use one directly from the source? There's clunky S3 Console in the browser. There's AWS CLI. But the most comfortable to use is AWS Storage Gateway. With this solution, S3 buckets are visible as standard NFS or SMB shares.
Today, I will guide you through setting up AWS Storage Gateway and exposing it on the local network - with two prerequisites: a switch/router and a computer with Ethernet port.
My old PCs
----------
So I have my old Dell laptop and an Intel NUC. Both of them were not touched since a long time. But recently, I booted my laptop. The screen only got worse - both bubbles under the touchscreen and internal LCD layers separating or getting moisture.
Not only that but sometimes the laptop just plain glitched. It happened mostly during boot time. After this glitch the laptop would not boot - it only blinked the HDD LED. I had to unscrew it and pop RAM sticks and SSD out and put it in again. But even after that it started complaining about "Memory misconfiguration". Eventually I got back to Linux.
I tried to create the AWS Storage Gateway VM on this laptop. It wasn't as easy as it sounds but eventually after debugging with Google, I got it working in a strict setup.
Starting AWS Storage Gateway
-----------------------------
As I am just a home Linux user, I don't have any VMWare or Hyper-V setup. Fortunately, AWS offers also a KVM image. To obtain the image, go to AWS Storage Gateway in your AWS Console. Click `"Create new gateway"`. You don't need to fill out anything for now. At the bottom of the page you have a list of supported platforms. Download the image for your hypervisor.
I downloaded it and tried to run it with the XML configuration provided for `virsh`, even after tweaking the memory, CPU and image location, I couldn't get to the console. But hey, it's a `qcow2`, so it's just a standard Qemu image.
Booting it with VirtualBox didn't work, so I used standard `qemu` command to run it and viola! I see the login screen in my GTK window. However, this this is not everything. We need to configure networking so that our VM is accessible from the local network. Also, keep in mind that the disk provided by AWS has up to 80GB by default and will grow eventually. So either you have to resize it or make a lot of free space on your host.
```bash
$ sudo apt install qemu-system qemu-system-x86 qemu-utils # Ubuntu 20.04 LTS
$ qemu-system-x86_64 -m 4096 -hda prod-us-east-1.qcow2 -accel kvm # Run the VM
```
### Configuring the network
Just booting into the machine might not be enough. It uses NAT on the host by default and I want to be able to access the NFS from my other machines on the local network. To do this, I had to add a bridge interface. I want the easiest setup possible so I will use `bridge-utils` package.
```bash
$ sudo apt install bridge-utils
$ sudo brctl addbr aws0 # Creates a bridge interface aws0
$ sudo brctl addif aws0 wlp2s0 # Adds the physical interface to the bridge
can't add wlp2s0 to bridge aws0: Operation not supported
```
Oh no! I can't add my WLAN interface as a bridge. Luckily, my laptop has RJ-45, so I can just connect it with a cable. Bridging over WLAN is more work than forwarding ports over NAT, so I will just stick to the cable 😅. I followed [this guide](https://www.spad.uk/posts/really-simple-network-bridging-with-qemu/) to configure the bridge for QEMU. It would be very useful to make the steps below automated, otherwise you will need to repeat them with every system restart.
```bash
$ # Create a bridge interface
$ sudo brctl addbr aws0
$ sudo brctl addif aws0 eno1 # Change to your own Ethernet interface
$ # Bring up the interfaces
$ sudo ifconfig eno1 up
$ sudo ifconfig aws0 up
$ # Allow bridged connections traffic
$ sudo iptables -I FORWARD -m physdev --physdev-is-bridged -j ACCEPT
$ sudo dhclient aws0 # I will use my home network's DHCP for the bridge
$ curl https://api.ipify.org # Check if we have public connectivity still
```
### Preparing cache storage
In order to use the File Gateway, you need at least one extra virtual disk that will be used for cache. We will use `qemu-img` command to create one and then format it to XFS. I don't know if it's necessary, maybe Storage Gateway supports unformatted disks. But it's still good to go through the process to learn more about QEMU 😆.
I will create first 160GB raw image. Next I will "mount" it using `qemu-nbd` with network block device kernel module on my host - it is needed to create disk devices for QEMU images on the host. It's a lower level step than mounting a disk such as ISO images on a loop device. For convenience, I will use `gparted` to format the disk.
```bash
$ qemu-img create -f qcow2 aws-cache.qcow2 160G
$ sudo modprobe nbd # Load nbd driver on the host
$ sudo qemu-nbd -c /dev/nbd0 aws-cache.qcow2 # Mount
$ sudo gparted /dev/nbd0
```
First create partition table on the disk: Select `Device` -> `Create partition table`. I created classic MBR partition. I don't know if it will work with GPT. Next, create a new partition using `Partition` menu and select `xfs` as the format. Apply all changes.
After finished work in GParted, remember to unmount any disks that could be automatically mounted and delete the `nbd` device.
```bash
$ sudo qemu-nbd -d /dev/nbd0
```
### Running the Gateway
Next we can start our Storage Gateway VM with QEMU. I gave my VM 8GB of RAM as 4-16 is recommended. The MAC address can be almost anything unique. MACs starting `52:54:00` are locally administered devices, similar to private IP addresses in layer 3. What is also useful is to set KVM acceleration for QEMU and set at least 2 vCPUs. Even with these settings it might take a while for the VM to be ready.
```bash
$ qemu-system-x86_64 -m 8192 \
-hda prod-us-east-1.qcow2 \
-hdb aws-cache.qcow2 \
-net nic,model=virtio,macaddr=52:54:00:88:99:11 \
-net bridge,br=aws0 \
-smp 2 \
-accel kvm
```
Once your VM is started you have to log in. Use `admin`, `password` credentials. You should be greeted with the AWS Storage Gateway configuration wizard. I let myself compare the IP that is seen by the VM and what is registered in my router. The bridge connection is working!
You see multiple options in the configuration screen. You can test the connectivity first by selecting the appropriate option. To start the real work, press `0` to get the activation key. Fill the values which are needed for your gateway. For most use cases it will be just `1` each time, except the region (for me it is `eu-west-1`). You should get the activation key.
Now, go back to AWS. Create a new gateway. Fill all the information for your gateway - name, timezone and select File Gateway. On the second page, in connection options, select `Activation key` and type the key you got from the VM. It might take time to activate the gateway.
We should be greeted with a success message that our gateway is activated. We can proceed to some more configuration required for the file gateway. Also there might be some updates to install. My image was very outdated so just let it install using "Apply immediately" before proceeding.
### Configuring cache
As we did in some previous section, we created another virtual disk that is supposed to be used as gateway's cache. Now we need to specify it in AWS so that it can start using it. Go to `Actions` -> `Configure cache storage`. Select what is available.
### Creating a bucket and a share
Let's go to our S3 console and create a bucket. Leave all the settings as default but choose some unique name. Keep the region the same as your Storage Gateway is located. In this bucket all the files we share via Storage Gateway will be reflected.
Next go to Storage Gateway console and `File shares` on the left. Create a new NFS share with the specified gateway and bucket. I then edited the share access settings and set the allowed clients to my home network subnet, that is `192.168.86.0/24`.
After the share is created, you can look into its details. At the bottom of the page there are example commands for mounting the share from the local network. As of May 2024, the Mac command has a redundant space in options `-o` near `nolock` so remember to remove it 😅. And change below IP to the one of your gateway.
```bash
$ # On Linux
$ sudo mkdir /mnt/share
$ sudo mount -t nfs \
-o nolock,hard \
192.168.86.40:/my-home-gw-123456 \
/mnt/share
$ # Or on Mac
$ mkdir ~/mnt/share
$ sudo mount -t nfs \
-o vers=3,rsize=1048576,wsize=1048576,hard,nolock \
-v 192.168.86.40:/my-home-gw-12345 \
~/mnt/share
```
If you can't connect, its useful to use `rpcinfo` for troubleshooting. Use it to get information about the RPC services (NFS being one of them). You should see something running on port 2049. If it's not visible, it can be a problem with your gateway configuration. If you see it and still can't mount or `rpcinfo` does not respond, check firewall.
```bash
$ rpcinfo -p 192.168.86.40
program vers proto port
100000 4 tcp 111 rpcbind
...
100003 3 udp 2049 nfs
100003 3 tcp 2049 nfs
```
Once the filesystem is mounted I can see the files that are in the bucket in Finder. I can copy new files with ease and synchronize between different devices and the cloud. This gives me a way to not only backup but also process the files on my Mac with low latency as they are cached on the local network on the gateway.
The uploads indeed have some latency. Once I copied the file from Finder, it took a good 10 seconds to eventually appear in S3.
Gateway maintenance
--------------------
All the maintenance of the gateway is done through AWS console, CLI or API. There's not much you are able to do using the gateway's terminal (unless you mounth the disk on the side). You can perform updates remotely and monitor the metrics that are available in the gateway's `Monitoring` tab in AWS console.
 | ppabis |
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1,864,714 | Exploring the Efficiency: A Guide to ERP Testing Tools | In the intricate realm of enterprise application testing, the significance of robust ERP (Enterprise... | 0 | 2024-05-25T08:54:41 | https://www.hubtechblog.com/exploring-the-efficiency-a-guide-to-erp-testing-tools/ | erp, testing, tools | 
In the intricate realm of enterprise application testing, the significance of robust ERP (Enterprise Resource Planning) systems cannot be overstated. As businesses evolve, so do the challenges in ensuring the seamless functionality of these critical systems. Enter ERP testing tools – the unsung heroes that play a pivotal role in guaranteeing the reliability and performance of ERP solutions.
**Understanding the Landscape of Enterprise Application Testing**
Enterprise application testing is the backbone of ERP management. It involves a meticulous examination of various modules, functionalities, and integrations within an ERP system. The goal is clear: to ensure that the system operates reliably, efficiently, and without disruptions. Traditionally, this process could be time-consuming and prone to human error, leading to potential operational hiccups.
**Challenges Encountered in ERP Testing**
**Complexity of ERP Systems**
ERP systems often boast intricate workflows that make manual testing cumbersome and prone to oversights. The complexity of these systems demands a testing approach that is thorough and adaptable.
**Frequent Updates and Customizations**
With ERP environments subject to continuous changes through updates and customizations, a robust testing strategy that can keep pace with these modifications becomes essential.
**The Role of ERP Testing Tools**
ERP testing tools emerge as a beacon of efficiency in the landscape of enterprise application testing. These tools are designed to streamline the testing process, amplify test coverage, and provide rapid feedback, all while ensuring the unwavering reliability of ERP functionalities.
At the heart of ERP testing tools is their ability to streamline the testing process. They act as efficient orchestrators, simplifying intricate workflows and ensuring that every facet of the ERP system is subject to thorough examination. By automating repetitive tasks, these tools save time and resources, allowing testing teams to focus on strategic aspects of system validation.
**Key Features of ERP Testing Tools**
**Scripting Language Support**:
Effective ERP testing tools should support scripting languages compatible with the ERP system. This ensures seamless integration and efficient execution of test scripts.
**Scalability**:
The ability of testing tools to scale alongside ERP systems is crucial. Scalable tools accommodate future expansions and updates, ensuring continued effectiveness as ERP environments evolve.
**Cross-Browser and Cross-Platform Compatibility**:
Testing tools must support various browsers and platforms to guarantee a consistent user experience across different environments. This ensures that the ERP system performs reliably, regardless of the user’s interface.
**Choosing the Right ERP Testing Tools**
Selecting suitable ERP testing tools is akin to choosing the right tools for a specific job. Considerations must align with the complexity and specific requirements of the ERP system, contributing to a robust testing framework.
**Conclusion**
ERP testing tools are not just utilities; they are strategic assets in the journey toward optimizing ERP systems. Embracing these tools as part of a comprehensive testing strategy empowers organizations to navigate the complexities of ERP environments with confidence.
As businesses evolve and ERP systems continue to play a pivotal role in their operations, the importance of effective testing tools cannot be overstated. By carefully selecting ERP testing tools and integrating them into the testing process, businesses can unlock the full potential of their ERP systems, ensuring reliability, efficiency, and adaptability in an ever-changing technological landscape. | rohitbhandari102 |
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1,864,711 | A Comprehensive Guide to Microsoft Teams | Microsoft Teams is a powerful collaboration platform that integrates with Office 365, providing a... | 0 | 2024-05-25T08:45:55 | https://blog.productivity.directory/a-comprehensive-guide-to-microsoft-teams-914145558cc3 | teamwork, microsoftteams, teamcollaboration, productivitytools | [Microsoft Teams](https://productivity.directory/microsoft-teams) is a powerful [collaboration platform](https://productivity.directory/category/team-collaboration) that integrates with Office 365, providing a unified workspace for communication, file sharing, and project management. This guide will walk you through the key features and functionalities of Microsoft Teams, helping you make the most of this versatile tool.
Getting Started with Microsoft Teams
====================================
1\. Setting Up Your Account
---------------------------
- Sign Up: If you don't already have an Office 365 account, sign up for one. Microsoft Teams is included with most Office 365 subscriptions.
- Download and Install: Download Microsoft Teams from the official website and install it on your device. It's available for Windows, Mac, iOS, and Android.
2\. Creating and Joining Teams
------------------------------
- Create a Team: Open Teams and click on the "Teams" tab on the left sidebar. Click "Join or create a team," then select "Create team." Choose the type of team you want to create (e.g., Class, PLC, Staff).
- Join a Team: To join an existing team, select "Join or create a team," then enter the code provided by the team owner or search for the team name if it's publicly available.
Navigating Microsoft Teams
==========================
1\. Teams and Channels
----------------------
- Teams: Teams are groups of people working together on a project or in a department. Each team can have multiple channels.
- Channels: Channels are dedicated sections within a team to keep conversations organized by specific topics, projects, or departments. Each channel can have its own files, conversations, and tabs.
2\. Chat and Conversations
--------------------------
- Chat: Use the "Chat" tab for private, one-on-one or group conversations outside of the team channels.
- Conversations: Within each channel, you can start and participate in threaded conversations. Use @mentions to get someone's attention.
3\. Meetings and Calls
----------------------
- Scheduling Meetings: Click on the "Calendar" tab to schedule meetings. You can invite team members, set the date and time, and add a meeting agenda.
- Video and Audio Calls: Start a video or audio call directly from a chat or channel. Click the camera or phone icon in the chat window.
Utilizing Key Features
======================
1\. File Sharing and Collaboration
----------------------------------
- Uploading Files: Upload files to a channel by clicking the "Files" tab. You can also drag and drop files directly into a conversation.
- Co-Authoring Documents: Collaborate in real-time on Office documents (Word, Excel, PowerPoint) directly within Teams. Multiple users can edit the same document simultaneously.
2\. Integrations and Apps
-------------------------
- Tabs: Add tabs to channels for quick access to apps and services like Planner, OneNote, SharePoint, and third-party tools.
- Connectors and Bots: Integrate with various services through connectors and use bots to automate tasks and workflows.
3\. Security and Compliance
---------------------------
- Data Security: Microsoft Teams offers robust security features, including data encryption, multi-factor authentication, and compliance with industry standards like GDPR.
- Admin Controls: Admins can manage user permissions, configure security settings, and monitor usage through the Teams admin center.
Best Practices for Using Microsoft Teams
========================================
1\. Organize Your Teams and Channels
------------------------------------
- Structure your teams and channels logically to reflect your organization's hierarchy or project workflows.
- Use standard naming conventions for teams and channels to maintain consistency and ease of navigation.
2\. Communicate Effectively
---------------------------
- Use @mentions to direct messages to specific team members or the entire team.
- Keep conversations within relevant channels to avoid clutter and ensure information is easily accessible.
3\. Leverage Integrations
-------------------------
- Take advantage of integrations with other Office 365 apps and third-party tools to streamline workflows and increase productivity.\
- Add commonly used apps as tabs in channels for quick access.
4\. Maintain Security
---------------------
- Regularly review and update permissions to ensure only authorized users have access to sensitive information.\
- Educate team members on best practices for data security and compliance.
Troubleshooting and Support
===========================
1\. Common Issues
-----------------
- Connectivity Problems: Ensure a stable internet connection and check your network settings if you encounter connectivity issues.
- App Performance: Clear cache and update to the latest version of Teams to improve performance.
2\. Getting Help
----------------
- Help and Training: Use the "Help" tab in Teams for tutorials, training videos, and user guides.
- Support: Contact Microsoft support for technical assistance and troubleshooting.
Conclusion
==========
Microsoft Teams is an indispensable tool for modern workplaces, offering robust features for communication, collaboration, and project management. By following this guide, you can harness the full potential of Microsoft Teams to enhance productivity and streamline workflows in your organization.
------
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1,864,709 | Metadata for win — Apache Parquet | You read the title right! Apache Parquet provisions best of the data properties to optimize your... | 0 | 2024-05-25T08:36:09 | https://dev.to/rahuldubey391/metadata-for-win-apache-parquet-3mb5 | python, bigdata, datascience, dataengineering |
You read the title right! Apache Parquet provisions best of the data properties to optimize your data processing engine capabilities. Some of the popular Distributed Computing solutions like Apache Spark, Presto exploits this property of Apache Parquet to read/write data faster.
Also, enterprise solutions in market like Databricks provides ACID properties on top of the Apache Parquet format to build Delta Tables. Some new formats have also arrived like Apache Iceberg, Apache Hudi etcetera.
But how it works? What if you have to write your own custom processing solution when it’s desired to use a needle instead of sword like Apache Spark.
Often, setting up Apache Spark is another big elephant which most people shy away from if they just want to process a manageable size on in single system.
For such cases, Apache Arrow is the best solution. Although it’s a platform that is language agnostic, it can be used for a single machine processing. Other libraries like Polars can also be used for single machine processing.
But how these frameworks makes the best out of Apache Parquet format? It’s the columnar format and the inherent structure of the file. The file is structured in such a format that retrieving columns is much efficient than the row based retrieval. In fact, the columns which are only required for analytical processing queries are preferred to be retrieved instead of selecting all columns as a whole.
## How is file structured?
Apache Parquet is optimized for analytical processing queries which is why it follows columnar format approach. Referring to the below official illustration, I’ll explain how it work:
What’s going on in the above illustration? Let me explain.
File is structured in parts, where it has 5 crucial information:
## Header
Header provides information regarding the official file format named as Magic Number — “PAR1”. This information is mostly specific to designate that it’s a Parquet format.
## Data
The actual data is stored in Data part of the file. It’s a combination of Row Groups + Column Chunks + Pages. Don’t worry we’ll come to it when we discuss about Footer.
## Footer
Footer is main block of information we are interested in and this article is about that only. Footer holds some of the critical information which is exploited by processing frameworks to optimize read and write operation.
It contains metadata about the whole file. It’s written during the write time of the file inherently to keep track of information so that it can be used during read time. High-level metadata we are interested in are as follows:
**FileMetadata** — Metadata block containing information about the file like Schema, Version of the parquet etcetera.
**RowGroupMetadata** — This one holds metadata about the column chunk names, number of records per row group etcetera.
**ColumnMetadata** — Column metadata tells information about each column like Name, Values (Distinct if needed), Compression Type, Offset to data page, Column Statistics like Min, Max values, byte size etcetera.
**PageMetadata** — Pages are blocks containing the actual data where it’s broken down to multiple pages. Each page metadata contains the next offset value to access the page.
There are are metadata information like Indexed columns and other which can be set while writing the file.
If you want to know how it looks as compiled bytes to string, you can see the similar structure as below:
`
SOURCE - https://parquet.apache.org/docs/file-format/metadata/
4-byte magic number "PAR1"
<Column 1 Chunk 1 + Column Metadata>
<Column 2 Chunk 1 + Column Metadata>
...
<Column N Chunk 1 + Column Metadata>
<Column 1 Chunk 2 + Column Metadata>
<Column 2 Chunk 2 + Column Metadata>
...
<Column N Chunk 2 + Column Metadata>
...
<Column 1 Chunk M + Column Metadata>
<Column 2 Chunk M + Column Metadata>
...
<Column N Chunk M + Column Metadata>
File Metadata
4-byte length in bytes of file metadata (little endian)
4-byte magic number "PAR1"
`
## Using metadata in practice
Discussed File Structure and Metadata can be used to write efficient systems for retrieving and processing large amount of files. In this section we are going to discuss how you can utilize the above information to benefit your program for read and processing logic.
Often the mistakes are made during the write time itself. Most people ignore the benefits of Parquet format and considers it like just any other file format like CSV, TSV etc. But if done right, some extra parameters can be used to apply these properties like Sorting based on low-cardinality columns, applying indexing based on a column, sorting the metric columns with high cardinality for co-locating values closer to a range.
Let’s not waste time and dive into a real example.
## Data in practice
We are going to utilize a script to generate some random data with a structure. The script will produce 100k records per file with 100 files in total. We will add some extra parameters to force some conditions for efficient reads at first like sorting based on columns. This data will be stored in a GCS bucket. Since most production environments are based on cloud, the blob storage systems are used to handle concurrent read/writes by the processing solutions.
Data points are scattered randomly across the files, since this is a challenge for most processing engines to spread the reads across 80–90% of the files in question. It’s also a worst case to handle and test our processing system.
Refer the below code to generate some data.
## Metadata Collection and Filtering Processes
We’ll divide our codebase into two parts, first is Metadata Collection process which will be responsible for reading metadata across all 100 files and writing it to a metadata folder at the same path where other files exists. Second part is the filtering process, which will take some random Query Parameters as arguments and based on this, collected metadata will be searched for filtering out only those part of the files that we require to read the records.
We are going to utilize Multiprocessing module in Python to maximize the reading and writing of metadata. Remind you, we are also going to utilize the Apache Arrow for just reading metadata and memory mapping the files while reading actual data.
In the cover image, each process is part of 2 classes. Collection and Write process are part of MetadataCollector class and Filter and Data Collection processes are part of MetadataProcessor class.
Both the classes provide executable methods for multiprocessing.
## Experiment in Consideration
I took around 20 GB of user clicks data that I generated from a script, it has the following configuration:
No partitiong logic — random splits
No ordering of the columns — predicate pushdown process most probably read all files while filtering
Row Group size is kept 100K records per page
Number of Rows per file — 1M
Compression Type — Snappy
## Compute Engine
The Google Cloud Compute Engine service is used to run the module. It has the following configuration:
4 vCPUs (2 Cores)
16 GB Memory
## Performance
Whole process took around 1.1 minutes (29 seconds for Metadata Collection and 34 seconds for Metadata Filtering and Data Collection)
## Conclusion
Although the processing with Python suffers a lot of draw back, but the module provides a basic understanding on how Apache Parquet can be used efficiently for better I/O operations. Future scope would be to use Bloom Filters, Sort-Merge Compaction, Z-Ordering (Key Co-location per file) and some other tricks to make it more mature.
## Code Repository
Refer to the below GitHub link to run check and run your own process. The code is not mature and it lacks proper constructs, but it’s still a WIP so feel free to add any suggestion or PR maybe.
parquet-reader — https://github.com/RahulDubey391/parquet-reader
| rahuldubey391 |
1,861,418 | Effective Unit Testing for REST APIs with Node.js, TypeScript | REST APIs, or Representational State Transfer Application Programming Interfaces, are a set of rules... | 19,416 | 2024-05-25T08:36:03 | https://dev.to/qbentil/effective-unit-testing-for-rest-apis-with-nodejs-typescript-2e4o | typescript, node, testing, api | REST APIs, or Representational State Transfer Application Programming Interfaces, are a set of rules that allow programs to communicate with each other over the internet. They use standard HTTP methods like GET, POST, PUT, and DELETE to perform operations. For instance, when you log in to a website, submit a form, or retrieve data, you're likely interacting with a REST API. They are foundational to modern web applications, enabling seamless interaction between client-side applications and server-side logic.
#### The Importance of Unit Testing
Unit testing involves testing individual pieces of code, such as functions or methods, to ensure they work correctly. For REST APIs, unit testing is crucial because it:
- **Ensures Correctness**: Confirms that each endpoint behaves as expected.
- **Detects Issues Early**: Catches bugs early in the development process, making them easier and cheaper to fix.
- **Facilitates Refactoring**: Allows developers to change code without fear of breaking existing functionality.
- **Enhances Maintainability**: Makes the codebase easier to maintain and extend, as tests provide a safety net.
- **Supports CI/CD**: Integrates with Continuous Integration/Continuous Deployment pipelines to ensure ongoing code quality.
#### Tools and Technologies: Node.js, TypeScript, and Jest
In this guide, we'll be using:
- **Node.js**: A JavaScript runtime built on Chrome's V8 engine, ideal for building fast and scalable network applications.
- **TypeScript**: A statically typed superset of JavaScript that adds types, enhancing code quality and developer productivity.
- **Jest**: A delightful JavaScript testing framework with a focus on simplicity, providing powerful tools for writing and running tests.
#### Boost Your Tests with [Codium AI's Cover-Agent](https://www.codium.ai/products/cover-agent/)
[](https://youtu.be/fIYkSEJ4eqE?feature=shared)
Introducing Codium AI's Cover-Agent, a powerful tool designed to boost your test coverage without the stress. The Cover-Agent simplifies and automates the generation of tests using advanced Generative AI models, making it easier to handle critical tasks like increasing test coverage. Key features include:
- **Test Generation Technology**: Automates the creation of regression tests.
- **Open-Source Collaboration**: Continuously improved through community contributions.
- **Streamlined Development Workflows**: Runs via a terminal and integrates with popular CI platforms.
- **Comprehensive Suite of Tools**: Includes components like Test Runner, Coverage Parser, Prompt Builder, and AI Caller to ensure high-quality software development.
With Cover-Agent, you can focus on developing features while it takes care of generating and enhancing your tests, ensuring your APIs remain reliable and maintainable.
You can easily get started from their [GitHub repository](https://github.com/Codium-ai/cover-agent)
### What is Unit Testing?
Unit testing is a software testing technique where individual components or units of a program are tested in isolation from the rest of the system. A "unit" refers to the smallest testable part of any software, which could be a function, method, procedure, module, or object. The goal of unit testing is to validate that each unit of the software performs as expected.
#### Purpose and Benefits of Unit Testing
Unit testing serves several important purposes and offers numerous benefits:
1. **Ensures Code Correctness**: By testing each part of the code independently, you can verify that the logic within individual units is correct.
2. **Early Detection of Bugs**: Unit tests can catch bugs at an early stage, which is often easier and less expensive to fix compared to issues found later in the development cycle.
3. **Facilitates Refactoring**: With a comprehensive suite of unit tests, developers can refactor or update code with confidence, knowing that the tests will catch any regressions or errors introduced.
4. **Simplifies Integration**: By ensuring that each unit works correctly in isolation, the integration of various parts of the system becomes smoother and less error-prone.
5. **Documentation**: Unit tests act as documentation for the code. They describe how the code is supposed to behave, making it easier for new developers to understand the system.
6. **Improves Code Quality**: Writing unit tests encourages developers to write better-structured, more maintainable, and testable code.
7. **Supports Continuous Integration/Continuous Deployment (CI/CD)**: Automated unit tests can be run as part of the CI/CD pipeline, ensuring that any new code changes do not break existing functionality.
#### Differentiating Unit Testing from Other Types of Testing
1. **Unit Testing vs. Integration Testing**
- **Unit Testing**: Focuses on testing individual units or components in isolation.
- **Integration Testing**: Focuses on testing the interaction between different units or components to ensure they work together as expected.
2. **Unit Testing vs. System Testing**
- **Unit Testing**: Tests the smallest parts of an application independently.
- **System Testing**: Tests the entire system as a whole to ensure that it meets the specified requirements.
3. **Unit Testing vs. End-to-End (E2E) Testing**
- **Unit Testing**: Ensures that each individual part of the application functions correctly.
- **End-to-End Testing**: Simulates real user scenarios to ensure that the entire application flow, from start to finish, works as expected.
By understanding these differences, you can see that unit testing forms the foundation of a comprehensive testing strategy, ensuring that the building blocks of your application are solid and reliable before moving on to more complex integration, system, and end-to-end tests.
Now that we understand what REST APIs are and why unit testing is crucial for maintaining reliable and maintainable APIs, let's get our hands dirty with a step-by-step approach. Don't worry if you've never written a test before; we'll guide you through the entire process from scratch. By the end of this guide, you'll have a solid grasp of how to set up and write unit tests for your REST APIs using Node.js, TypeScript, and Jest. Let's dive in!
### Setting Up the Environment
- **Node.js and TypeScript:** Provide installation steps and basic configuration.
- **Jest:** Guide on installing Jest and setting it up with TypeScript.
```bash
npm init -y
npm install typescript ts-jest @types/jest jest --save-dev
npx ts-jest config:init
```
- **Basic TypeScript Configuration:** Include a sample `tsconfig.json`.
```json
{
"compilerOptions": {
"target": "ES6",
"module": "commonjs",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true
}
}
```
### Writing Unit Tests for REST APIs
1. **Identify Test Cases**
- List common scenarios to test (e.g., successful responses, error responses, edge cases).
2. **Mocking Dependencies**
- Explain the concept of mocking with Jest.
- Demonstrate how to mock external dependencies using `jest.mock`.
3. **Creating Test Data**
- Discuss strategies for creating reliable and reusable test data.
4. **Writing the Tests**
- Show examples of unit test cases for various endpoints (GET, POST, PUT, DELETE).
- Cover both positive and negative test cases.
### Example: Unit Testing a Sample REST API
Provide a simple REST API example, such as a CRUD API for managing users.
**Sample Project Structure:**
```
/src
/controllers
userController.ts
/services
userService.ts
/models
user.ts
/routes
userRoutes.ts
app.ts
/server
server.ts
/tests
userController.test.ts
userService.test.ts
```
**Sample Code:**
- **app.ts:**
```js
import express from 'express';
import userRoutes from './routes/userRoutes';
const app = express();
app.use(express.json());
app.use('/users', userRoutes);
export default app;
```
- **server.ts:**
```js
import app from '../src/app';
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});
```
- **userController.ts:**
```js
import { Request, Response } from 'express';
import { getUsers, createUser } from '../services/userService';
export const getAllUsers = async (req: Request, res: Response) => {
const users = await getUsers();
res.json(users);
};
export const addUser = async (req: Request, res: Response) => {
const user = req.body;
const newUser = await createUser(user);
res.status(201).json(newUser);
};
```
- **userService.ts:**
```js
import { User } from '../models/user';
const users: User[] = [];
export const getUsers = async (): Promise<User[]> => {
return users;
};
export const createUser = async (user: User): Promise<User> => {
users.push(user);
return user;
};
```
- **user.ts:**
```js
export interface User {
id: number;
name: string;
email: string;
}
```
- **userRoutes.ts:**
```js
import { Router } from 'express';
import { getAllUsers, addUser } from '../controllers/userController';
const router = Router();
router.get('/', getAllUsers);
router.post('/', addUser);
export default router;
```
### Writing Tests with Jest
- **userController.test.ts:**
```js
import request from 'supertest';
import app from '../src/app';
import * as userService from '../src/services/userService';
import { User } from '../src/models/user';
jest.mock('../src/services/userService');
describe('User Controller', () => {
describe('GET /users', () => {
it('should return a list of users', async () => {
const mockUsers: User[] = [{ id: 1, name: 'John Doe', email: 'john@example.com' }];
(userService.getUsers as jest.Mock).mockResolvedValue(mockUsers);
const response = await request(app).get('/users');
expect(response.status).toBe(200);
expect(response.body).toEqual(mockUsers);
});
});
describe('POST /users', () => {
it('should create a new user', async () => {
const newUser: User = { id: 2, name: 'Jane Doe', email: 'jane@example.com' };
(userService.createUser as jest.Mock).mockResolvedValue(newUser);
const response = await request(app)
.post('/users')
.send(newUser);
expect(response.status).toBe(201);
expect(response.body).toEqual(newUser);
});
});
});
```
### Best Practices for Unit Testing REST APIs
- Keep tests isolated and independent.
- Use descriptive test names.
- Aim for high test coverage but focus on quality over quantity.
- Regularly review and update tests.
- Integrate tests into the CI/CD pipeline.
### Conclusion
In this article, I explored the importance of unit testing for REST APIs, emphasizing its role in ensuring reliable and maintainable applications. I covered the basics of unit testing, its benefits, and how it differs from other types of testing.
Using Node.js, TypeScript, and Jest, I provided a step-by-step guide on setting up and writing unit tests for REST APIs. Thorough unit testing helps catch bugs early, simplifies refactoring, and improves code quality.
I encourage you to implement unit tests in your projects to achieve these benefits. Additionally, consider using Codium AI's Cover-Agent to automate and enhance your test generation process, making it easier to maintain high test coverage and code quality.
Happy testing!
### Additional Resources
- [Jest Documentation](https://jestjs.io/docs/en/getting-started)
- [TypeScript Handbook](https://www.typescriptlang.org/docs/)
- [Express Documentation](https://expressjs.com/en/starter/installing.html)
- [Codium AI's Cover-Agent](https://www.codium.ai/products/cover-agent/)
Bentil here🚀
Are you familiar with writing unit tests using jest? Which other frameworks or approach have you been using? Kindly share your experience with them in the comments. This will help others yet to use them.
| qbentil |
1,864,688 | The Ultimate Guide to Backlink Generators: Boost Your SEO Effortlessly | https://ovdss.com/apps/backlink-generator In the ever-evolving world of SEO, backlinks remain one... | 0 | 2024-05-25T08:30:36 | https://dev.to/johnalbort12/the-ultimate-guide-to-backlink-generators-boost-your-seo-effortlessly-4pjd |
https://ovdss.com/apps/backlink-generator
In the ever-evolving world of SEO, backlinks remain one of the most critical factors in achieving high search engine rankings. But building quality backlinks can be a daunting and time-consuming task. Enter free backlink generators – tools designed to simplify and accelerate the process of acquiring backlinks. In this comprehensive guide, we’ll explore what free backlink generators are, how they work, and their benefits and limitations. Plus, we'll provide tips on using them effectively to boost your SEO.
What is a Backlink Generator?
A free backlink generator is an online tool or software designed to help you create backlinks to your website quickly and efficiently. These tools can generate a variety of backlinks, ranging from social bookmarks and forum postings to web directory listings and blog comments. The primary goal is to enhance your website’s authority and improve its search engine rankings by increasing the number and quality of inbound links.
How Do Backlink Generators Work?
Free Backlink generators automate the process of link building by:
Identifying Opportunities: They search the web for potential sites where you can get backlinks.
Creating Links: Some tools can automatically submit your site to directories, create profiles on forums, and post comments on blogs.
Monitoring Links: Many backlink generators offer features to track the status and quality of the created backlinks.
Benefits of Using a Backlink Generator
Time-Saving: Automates the tedious task of manually searching for and creating backlinks.
Scalability: Generates a large number of backlinks quickly, which can be especially useful for new websites.
Improved SEO: Helps improve your website’s search engine rankings by increasing the quantity of inbound links.
Accessibility: Many backlink generators are user-friendly and require minimal technical knowledge.
Limitations and Risks
While backlink generators offer numerous benefits, they also come with potential drawbacks:
Quality Concerns: Not all generated backlinks are of high quality. Low-quality or spammy backlinks can harm your site’s SEO.
Risk of Penalties: Search engines like Google penalise websites that use black hat SEO techniques, including the creation of artificial backlinks.
Lack of Control: Automated tools may create backlinks on irrelevant or low-authority sites, which can be counterproductive.
Best Practices for Using Backlink Generators
To maximise the benefits of backlink generators while minimising risks, follow these best practices:
1. Choose a Reputable Tool
Not all free backlink generators are created equal. Research and choose tools with good reviews and a solid reputation in the SEO community. Some popular options include:
SEMrush: Offers a comprehensive suite of SEO tools, including a backlink generator.
Ahrefs: Known for its extensive backlink database and powerful analysis tools.
Ubersuggest: A user-friendly tool that provides backlink opportunities and analysis.
2. Focus on Quality Over Quantity
Prioritise generating high-quality backlinks from authoritative and relevant sites. A few high-quality backlinks are more valuable than numerous low-quality ones.
3. Monitor and Audit Backlinks
Regularly check the backlinks generated by the tool to ensure they are beneficial to your SEO. Use tools like Google Search Console and Ahrefs to audit your backlink profile and disavow any harmful links.
4. Integrate with Other SEO Strategies
Combine the use of backlink generators with other SEO strategies, such as content marketing, social media engagement, and guest blogging, to create a robust and sustainable SEO plan.
5. Avoid Overreliance on Automation
While backlink generators can save time, they should not be your sole method for acquiring backlinks. Manual link-building efforts and building relationships within your industry are equally important for a well-rounded SEO strategy.
Conclusion
Backlink generators can be a valuable asset in your SEO toolkit, helping you quickly and efficiently build a strong backlink profile. However, it’s crucial to use these tools wisely and complement them with manual efforts and other SEO strategies. By focusing on quality, monitoring your backlinks, and integrating various SEO techniques, you can significantly improve your website’s search engine rankings and online visibility.
| johnalbort12 | |
1,864,687 | F# For Dummys - Day 14 Collections Map | Today we learn Map, an immutable collection that stores key-value pairs Map is immutable, it cannot... | 0 | 2024-05-25T08:25:32 | https://dev.to/pythonzhu/f-for-dummys-day-14-collections-map-big | fsharp | Today we learn Map, an immutable collection that stores key-value pairs</br>
Map is immutable, it cannot be changed after created. Adding or removing elements return a new Map instead of modifying the existing one
#### Create Map
- Explicitly specifying elements
```f#
let notEmptyMap = Map [ (1, "a"); (2, "b") ]
printfn "%A" notEmptyMap // map [(1, a); (2, b)]
```
- Map.ofList
```f#
let map =
Map.ofList [
(3, "three")
(1, "one")
(2, "two")
]
printfn "map: %A" map // map [(1, one); (2, two); (3, three)]
```
we can see the key is sorted from 3,1,2 to 1,2,3</br>
what if the key is dulpicate
```f#
let map =
Map.ofList [
(3, "three")
(1, "one")
(2, "two") // first key 2
(2, "overwrite") // second key 2
]
printfn "%A" map // map [(1, one); (2, overwrite); (3, three)]
```
the value of the same key 2 is the last one, it overwrite the first one
- Map.empty
create an empty map with int keys and string values
```f#
let emptyMap = Map.empty<int, string>
printfn "%A" emptyMap // map []
```
#### Access element
- ContainsKey
Tests if an element is in the domain of the map
```f#
let sample = Map [ (1, "a"); (2, "b") ]
printfn "sample contain key 1: %b" (sample.ContainsKey 1) // sample contain key 1: true
printfn "sample contain key 3: %b" (sample.ContainsKey 3) // sample contain key 3: false
```
- map.[key]
access by key in the domain will return the value, raise Exception if key not exists
```f#
let sample = Map [ (1, "a"); (2, "b") ]
printfn "access by key 1: %s" sample.[1] // access by key 1: a
printfn "access by key 3: %s" sample.[3] // Unhandled exception. System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary
```
if you use browser environment, you may not see this Exception
- TryFind
Lookup an element in the map, returning a `Some` value if the element is in the domain of the map and `None` if not
```f#
let sample = Map [ (1, "a"); (2, "b") ]
printfn "TryFind key 1: %A" (sample.TryFind 1) // evaluates to Some "a"
printfn "TryFind key 3: %A" (sample.TryFind 3) // evaluates to None
```
- TryGetValue
Lookup an element in the map, assigning to `value` if the element is in the domain of the map and returning `false` if not
```f#
let sample = Map [ (1, "a"); (2, "b") ]
printfn "access by key 1: %A" (sample.TryGetValue 1) // evaluates to (true, "a")
printfn "access by key 3: %A" (sample.TryGetValue 3) // evaluates to (false, null)
```
`TryGetValue` is added in F# 6.0</br>
Conclusion: `TryFind` `TryGetValueThe` provide a safer way to access elements, and `option` type returned by `TryFind` `TryGetValueThe` fits naturally with F#'s pattern matching
#### Pattern Matching with Map
- TryFind match
```f#
let mp = Map.ofList [("doot", 1); ("beef", 2); ("hoopty", 3)]
match Map.tryFind "doot" mp with
| Some value -> printfn "Value: %A" value
| None -> printfn "No value found!"
match Map.tryFind "goot" mp with
| Some value -> printfn "Value: %A" value
| None -> printfn "No value found!"
```
- TryGetValue match
```f#
let mp = Map.ofList [("doot", 1); ("beef", 2); ("hoopty", 3)]
match mp.TryGetValue "doot" with
| (true, value) -> printfn "Value: %A" value
| (false, _) -> printfn "No value found!" // Value: 1
match mp.TryGetValue "goot" with
| (true, value) -> printfn "Value: %A" value
| (false, _) -> printfn "No value found!" // No value found!
```
#### Loop Map
- for KeyValue(key, value) in
```f#
let map = Map.ofList [("doot", 1); ("beef", 2); ("hoopty", 3)]
for KeyValue(key, value) in map do
printfn "Key: %s, Value: %d" key value
```
- Map.iter
```f#
let map = Map.ofList [("doot", 1); ("beef", 2); ("hoopty", 3)]
map |> Map.iter (fun key value -> printfn "Key: %s, Value: %d" key value)
```
#### Modify element of Map
- Add & Remove
```f#
let map = Map.ofList [("doot", 1); ("beef", 2); ("hoopty", 3)]
let mapWithAddedElement = map.Add("pork", 4)
printfn "Map after adding (4, \"four\"): %A" mapWithAddedElement
let mapWithRemovedElement = mapWithAddedElement.Remove("beef")
printfn "Map after removing key 2: %A" mapWithRemovedElement
```
#### Practice
Counting Words in text: "hello world hello map in F#"
```f#
let text = "hello world hello map in F#"
let words = text.Split(' ') // ["hello", "world", "hello", "map", "in", "F#"]
let wordCountMap =
words
|> Array.fold (fun acc word ->
if Map.containsKey word acc then // Static Member Function
let count = acc.[word]
acc.Add(word, count + 1)
else
acc.Add(word, 1)
) Map.empty
printfn "Word count map: %A" wordCountMap // Word count map: map [(F#, 1); (hello, 2); (in, 1); (map, 1); (world, 1)]
```
the solution use Map.containsKey which is *Static Member Function*, we can use acc *Instance Member Function* like this:
```f#
let text = "hello world hello map in F#"
let words = text.Split(' ')
printfn "words: %A" words
let wordCountMap =
words
|> Array.fold (fun (acc: Map<string, int>) word ->
if acc.ContainsKey word then // Instance Member Function
let count = acc.[word]
acc.Add(word, count + 1)
else
acc.Add(word, 1)
) Map.empty
printfn "Word count map: %A" wordCountMap
```
*Static Member Function* and *Instance Member Function* will be introduced in OOP | pythonzhu |
1,864,686 | What are Content Delivery Networks (CDNs)? | Imagine running an application that serve latest news in the form of 100-words articles. News in the... | 0 | 2024-05-25T08:23:54 | https://dev.to/the_infinity/what-is-content-delivery-networks-cdns-3abd | webdev, beginners, cloud, architecture | Imagine running an application that serve latest news in the form of 100-words articles. News in the form of such short articles allowed your application’s users to consume lot more news in a short time.
With growing popularity of your application, the load on your application server started growing exponentially. Initially you increased your server’s capability to serve more requests, but you soon realised that this was not sustainable. You dig deep to find a better solution for this problem. You found the following usage pattern for your application ~
* Users that were geographically closer to each other almost consumed the same set of news articles
* While the number of users were large at any point in time, the news articles that they consumed in-together wasn’t that large. In other words, people read almost the same set of articles during a given interval.
All this made you to think of caching news articles. However, this cache needs to be different for different geographical locations. You researched further and found a perfect solution called Content Delivery Networks (CDNs).
This is how Cloudflare defines CDN ~
> **_A content delivery network (CDN) is a geographically distributed group of servers that caches content close to end users. A CDN allows for the quick transfer of assets needed for loading Internet content, including HTML pages, JavaScript files, stylesheets, images, and videos._**
So how does CDN works? There are the following three crucial components to it.
➙ **_Origin Server_**: This is the application server that contains the source of truth. Any updates are made to the contents of the origin server.
➙ **_Edge Servers_**: These servers are located in multiple geographical locations that are called “**_Points-of-Presence_**” or “**_PoP_**”. Content from the origin server is cached here and is served to the clients. In case of missing data, origin server is used to respond to the client’s query and for simultaneously updating edge server’s cache.
➙ **_DNS Servers_**: Domain Name Systems (DNS) servers keep track of the origin and edge server. On a DNS lookup, IPs of both the origin and the edge server.
While caching is one of the biggest advantages of CDNs, it is not the only one. There are several other advantages like decreased server loads, improved site performance, and protection against cyber-attacks. All these benefits are the reason why most of the internet today is being served up by CDNs.
### Types of CDNs
Based on how the cache in edge servers is updated, two types of CDNs exists: **_push_** and **_pull_**.
**Push CDNs** push contents from origin server to the edge servers. Updated content is pushed periodically which is then served up by the CDNs. The cache data from edge server is not removed until the data is explicitly deleted or overridden by the updated data.
**Pull CDNs** is the complete opposite of push CDNs. Here, the edge servers are responsible for pulling in data from the origin server. The process works like this: as the website owner, you maintain the content on the origin server and adjust the URLs to point to the CDN. Subsequently, when a request is made for a web page, the CDN fetches the necessary elements and files from the origin server and presents them to the visitor.
### Popular CDNs
Almost always you would use services of a CDN provider instead of setting up your own CDN. There are some very good options out there, some of them being ~
* _Akamai_
* _Cloudfront_
* _Azure CDN_
* _Cloudflare_
---
With this we reach the end of this blog. Give yourself a pat on the back if you make it this far! | the_infinity |
1,864,685 | We Overcame Design Challenges in the Crypto Space | As a designer working on various crypto projects, I constantly faced a frustrating problem: the lack... | 0 | 2024-05-25T08:22:09 | https://dev.to/designwizardstudio/we-overcame-design-challenges-in-the-crypto-space-1bb0 | webdev, web3, cryptocurrency, ui | As a designer working on various crypto projects, I constantly faced a frustrating problem: the lack of quality UI elements and inspiration for crypto projects. Every time I started working on tokenomics, roadmaps, NFT cards, or dashboards, I found myself spending hours searching for the right elements and often coming up short.
I knew there had to be a better way.
That's why I decided to build Design Wizard. My goal was simple: create a platform where crypto developers and designers like myself could find beautiful, ready-made UI kits and templates designed specifically for the crypto space.
[Design Wizard](https://www.designwizard.io/) | designwizardstudio |
1,864,708 | #112 How to Use Python Libraries for Audio Data Analysis | Audio data and analysis are changing how computers help us. They are behind digital assistants and... | 0 | 2024-06-04T16:49:22 | https://dev.to/genedarocha/112-how-to-use-python-libraries-for-audio-data-analysis-1al3 | ---
title: #112 How to Use Python Libraries for Audio Data Analysis
published: true
date: 2024-05-25 08:20:44 UTC
tags:
canonical_url:
---
Audio data and analysis are changing how computers help us. They are behind digital assistants and detecting problems. In this guide, we'll look at how Python helps in analyzing sound data.
[
](https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6907d806-4039-4f82-8d17-926879f9eb15_1344x768.jpeg)
### Key Takeaways
- Python libraries are great for understanding audio data.
- Numpy, Scipy, Matplotlib, and pydub are top tools for this.
- You must import and **download audio files** to start an analysis.
- Seeing the audio signal can teach us about its details.
- For some techniques, you need to change stereo audio to mono.
Next, we will learn how to work with audio files in Python. This includes downloading them, looking at the audio signal, and more. Let's see what Python can do for audio data!
Thanks for reading Voxstar’s Substack! Subscribe for free to receive new posts and support my work.
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## Importing Audio Libraries
Before you start having fun with audio data, you need to bring in some Python libraries. These tools help a lot by offering many features for working with and looking at audio data. Now, let's see some key libraries for your audio journey:
> > _Numpy_: Numpy is a key library that handles big, complex arrays and matrices with ease. It's great for doing math and logic in your audio studies.
>
> > _Scipy_: Scipy takes what Numpy can do and adds more. It helps with signal processing, stats, and other stuff for more complex audio jobs.
>
> > _Matplotlib_: Matplotlib lets you make cool graphs and charts. It helps you see your audio data in clear ways, showing sound features and trends.
Along with these, you might want pydub, which you can get with pip. Pydub helps with tasks like changing stereo sound into mono. It fits right in when you need your audio analysis work to be smooth and work well together.
By getting these important libraries, you lay a good base for exploring audio data. They'll help you find interesting info in the sounds around us.
## Downloading and Importing Audio Files
To start looking at audio data, first download and bring in audio files. For this guide, we'll work with a drone audio called "Drone1.wav." You can get it with the supplied script or another way you like.
After you grab the audio file, import it into your Python program. You'll use the wavfile part from the scipy.io library. Then, you're set to look through and study the audio data.
> > _Pro Tip:_ Pick audio files that work well with Python. Different kinds might need extra work to fit, like changing the format or adding codecs.
The audio file you bring in becomes like a NumPy array. This type is very good for managing and studying the audio. It lets you look at things like how high or low it sounds, how loud, and for how long.
By getting and bringing in audio files, you open a door to study real-life sounds. This is the start of more deep dives and studies with Python tools for audio.
## Visualizing the Audio Signal
Seeing the audio signal helps us in **Python audio analysis**. By showing the waveform of the left and right channels, we learn a lot. This lets us see the whole shape of the audio. We can find any patterns or strange things that might change our analysis.
The _Matplotlib_ library is great for making plots and graphs for audio. It shows the loudness of the original sound nicely and clearly.
> > "Visualizing the audio signal lets us see the waveform. It shows changes in loudness and time. This helps us learn more about the sound. It also helps to find any weird things that might affect our study."
To start, we need to import libraries and load the audio data. After that, we can get the left and right channels and use Matplotlib to plot them.
### Example Code:
Here's an example code snippet for plotting audio signals using Matplotlib:
```
import numpy as np
import matplotlib.pyplot as plt
# Load audio data
left_channel = audio_data[:, 0] # Get left channel
right_channel = audio_data[:, 1] # Get right channel
# Plot left channel waveform
plt.plot(left_channel)
plt.xlabel('Time')
plt.ylabel('Amplitude')
plt.title('Left Channel Waveform')
plt.show()
# Plot right channel waveform
plt.plot(right_channel)
plt.xlabel('Time')
plt.ylabel('Amplitude')
plt.title('Right Channel Waveform')
plt.show()
```
The code above shows how to plot the left and right channels. This way, we learn about the loudness and time changes in the audio.
### Visualizing Audio Signal
Techniques Description Waveform Plot Plots how the audio signal's loudness changes over time. Time-domain Analysis Helps spot patterns or strange things in the sound by looking at the waveform. Amplitude Variation Detects any big changes in the audio's loudness. Identifying Noise or Distortion Shows if there's any weird noise or distortion in the audio.
By looking at the audio signal, we understand it better. This helps us make smarter choices when studying audio.
## Converting Stereo to Mono
Sometimes we need to turn stereo audio into mono. This is useful for certain analyses. In Python, the _pydub library_ makes this task simple.
With pydub, changing a stereo file to mono is a couple of steps. First, we set the channels to one. This gives us a new file that's in mono. We can then keep working on this file for our analysis.
Below is a quick guide on how to change stereo to mono:
```
# Import the necessary libraries
from pydub import AudioSegment
# Load the stereo audio file
audio = AudioSegment.from_file("stereo_audio.wav", format="wav")
# Convert stereo to mono
mono_audio = audio.set_channels(1)
# Export the mono audio file
mono_audio.export("mono_audio.wav", format="wav")
```
This method allows us to convert stereo files easily. It plays a key role in maintaining consistency in our audio data analysis. The _pydub library_ is great for this task.
## Frequency Analysis
**Frequency analysis** is important in understanding sound. The Fast Fourier Transform (FFT) is a key method. It helps us see what frequencies are in a sound.
This way, we learn about the sounds' main frequencies. These insights are right down to one file's frequencies.
### Understanding the Fast Fourier Transform (FFT)
The FFT turns sounds into patterns of different frequencies. It shows each frequency's size and position. This makes it easy to understand a sound's building blocks.
> > _"The FFT is a powerful tool for analyzing audio signals. It breaks down complex waveforms into simple frequency components, allowing us to explore the underlying structure of the audio data."_
An FFT shows the sound's parts clearly. We find the most important frequencies this way. It helps us know what makes up a sound.
### Visualizing the Frequency Spectrum
Matplotlib helps make sense of FFT results. This tool lets us see sound frequencies on a graph. We spot the main frequencies and any trends easily.
### Key Takeaways
- FFT lets us see a sound's different frequencies.
- It's important to understand how sound works.
- Using Matplotlib helps us see the sound spectrum visually.
Analyzing frequencies tells us a lot about sounds. It's a key step in understanding and working with sounds.
## Frequency Analysis Libraries
Library Features Documentation NumPy FFT functions and array manipulation [Link](https://numpy.org/doc/) SciPy Signal processing, FFT, and spectrogram generation [Link](https://docs.scipy.org/doc/) Matplotlib Plotting and visualization of frequency spectra [Link](https://matplotlib.org/stable/contents.html)
Here are some great Python libraries for working with sound. NumPy has FFT tools and array help. SciPi works with signals and makes spectrograms. Matplotlib is good for making graphs.
## Spectrogram Analysis
A spectrogram is great for studying sound. It shows us how loud each pitch is over time. We can watch the sound waves change over time. With the Scipy library, we can quickly make a spectrogram from any sound file.
After making a spectrogram, we can make it easier to see. We can use a special scale that highlights certain pitch areas. This helps us spot secret patterns in the sound. It makes finding and studying different pitches easier. This is known as logarithmic transformation.
Looking at the spectrogram, we learn about the sound's timing. It helps us see things like sound waves rhythm and other patterns. These findings are very useful. They help in music exams, telling sounds apart, and understanding speeches better.
To make a spectrogram with Python, do these steps:
1. Start by adding needed libraries, like Scipy and Numpy.
2. Open the sound file with scipy.io.wavfile.read().
3. If needed, turn the sound into one channel.
4. Find the frequencies in the sound with Fast Fourier Transform (FFT).
5. Make the spectrogram with the signal.spectrogram().
6. Show the spectrogram with your favourite graph library, like matplotlib.
In the spectrogram, up and down is the pitch, left to right is time and brightness shows how loud each pitch is. This chart tells us a lot about the sound's pitch and its timing.
To wrap up, studying sound with spectrograms is super helpful. Using Python and special tools, we can dive into sound details. Understanding sounds better helps us use audio data in smarter ways.
## Feature Extraction for Machine Learning
Machine learning often uses audio data. To start, we have to pull out some key features from the audio. This gives us key details about the sound. Then, we can use it in machine learning setups.
Libraries like Librosa help a lot with this in Python. They come filled with tools for getting audio data ready. This improves how well our machine-learning setups work.
### Commonly Extracted Audio Features:
We look at many parts of the sound to pick out features. Here are some popular ones:
- _Centroid:_ Shows where the sound's most energy is, its main pitch.
- _Spectral Rolloff:_ Gives the frequency where most of the sound's energy is below.
- _Spectral Bandwidth:_ Tells us the spread of sound frequencies.
- [Keyword: Python Audio Analysis] _MFCC (Mel-frequency cepstral coefficients):_ Focuses on sounds using the Mel scale. It looks at how frequencies and their loudness change over time.
- [Keyword: Python Audio Analysis] _Chroma feature:_ It measures the energy of musical notes. This helps understand the sound's tone.
- [Keyword: Feature Extraction for Machine Learning] _Zero-crossing rate:_ Looks at how often the sound's waveform changes sign. This spotlights big changes or noisy parts.
These features help us grasp what makes each sound unique. They are the building blocks for letting machines understand sounds.
> > "Getting the right audio features is key for machine learning to work well on sound. They tell us a lot about the sound and help us make good models."
>
> > - [Name Surname], [Title/Expertise]
Thanks to Librosa and Python, it's easy to work with these features. They let people doing data science and machine learning do more with sound data. This includes things like understanding speech, sorting music by type, and spotting different sounds.
## Measuring Audio Clarity
**Measuring audio clarity** is key in **Python audio analysis**. We look at things like frequency, range, and loudness. Python helps us see how clear audio files are.
We use Python to find out how clear the audio is. We change sound waves and use filters. This lets us see what makes the sound good or bad to listen to.
> > "Audio clarity is more than just getting rid of noise. It’s about how clear and real the sound is. Python helps us really understand audio signals."
In Python, we start by checking the audio's frequency. This tells us about the sounds in the audio. We look for any odd sounds that might not sound right.
The range from quiet to loud also matters. This shows the contrast in the audio. It helps us understand the sound's quality.
The signal-to-noise ratio (SNR) shows how clear the audio is. A higher SNR means a clear sound. Low SNR means there's too much noise.
Loudness affects how clearly we hear audio. We check if some parts are too quiet or too loud. This can make the sound hard to understand.
Python helps us see audio clarity with charts and data. We understand audio quality better this way. It helps us make audio sound its best.
### Example Table: Comparing Audio Clarity Metrics
Metric Definition Range Frequency Spectrum The distribution of frequencies in the audio signal 20 Hz - 20,000 Hz (human audible range) Dynamic Range The difference between the quietest and loudest parts of the signal Varies depending on audio content and compression Signal-to-Noise Ratio (SNR) The level of the desired signal compared to background noise Measured in decibels (dB) Loudness The perceived audio volume Measured in decibels (dB)
We use these ways and Python to find how clear the audio is. This helps us know how to make audio better. We can make audio sound great for everyone.
## Conclusion
With **Python Audio Analysis** , we get powerful tools for looking into audio data. We can use Python libraries to work with different audio file types and data easily.
By seeing things like waveform plots, frequency looks, and spectrograms, we learn more about an audio's sound. These visuals help us spot key tones, check time patterns, and understand how clear the sound is. This makes it easier to do more with the sound we hear.
We're also able to pick out details from audio data. This lets us use machine learning for things like sorting sounds or predicting sound qualities. Librosa helps pull out many sound features to better our machine learning work.
Overall, Python's tools for audio make looking into sound data easy and exciting. We can use them for all kinds of sound tasks, like reading speeches or studying music. This helps us learn more from what we hear and use that information wisely.
## FAQ
### What are some standard libraries for audio analysis in Python?
In Python, some common libraries for audio analysis are Numpy, Scipy, and Matplotlib.
### How can I import audio files into Python for analysis?
To bring audio files into Python, use "wavfile" from the scipy.io library. This turns the audio into a NumPy array.
### How can I visualize the characteristics of an audio signal?
You can see an audio signal's features by plotting its waveform with Matplotlib. Plot the data from each stereo channel.
### How can I convert a stereo audio file to mono in Python?
Changing a stereo audio file to mono in Python is easy. Use the "pydub" library and change the channels to 1.
### What is the Fast Fourier Transform (FFT) and how is it used in audio analysis?
FFT is used to analyze audio frequencies. By applying it, you get the frequency details and see the main amplitudes.
### How can I generate a spectrogram for an audio file in Python?
Generate a spectrogram with Python by using the "signal" module from Scipy. It shows the audio's time-based changes visually.
### What is feature extraction for machine learning in audio analysis?
Feature extraction picks out key aspects from sound. This includes the wave's centroid, roll off, and bandwidth for machine learning.
### How can I measure the audio clarity of an audio file in Python?
To check clarity in Python, look at the frequency, range, SNR, and loudness. Python has what you need to examine this data.
### What is the advantage of using Python libraries for audio data analysis?
Python's tools make analyzing sound easy. They open up new options for exploring audio content.
## Source Links
- [https://medium.com/@bhagat\_16083/exploring-audio-data-with-python-an-introduction-to-working-with-audio-files-a259f9f5027f](https://medium.com/@bhagat_16083/exploring-audio-data-with-python-an-introduction-to-working-with-audio-files-a259f9f5027f)
- [https://apmonitor.com/dde/index.php/Main/AudioAnalysis](https://apmonitor.com/dde/index.php/Main/AudioAnalysis)
- [https://www.topcoder.com/thrive/articles/audio-data-analysis-using-python](https://www.topcoder.com/thrive/articles/audio-data-analysis-using-python)
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1,864,679 | Bola Tangkas: Permainan Kartu Indonesia yang Menarik | Salah satu keunikan bola tangkas adalah penggunaan mesin bola tangkas, yaitu sejenis perangkat... | 0 | 2024-05-25T08:12:15 | https://dev.to/softwareindustrie24334/bola-tangkas-permainan-kartu-indonesia-yang-menarik-2eig | Salah satu keunikan bola tangkas adalah penggunaan mesin bola tangkas, yaitu sejenis perangkat elektronik yang mirip dengan mesin slot. Pemain memasukkan koin atau kredit ke dalam mesin dan dibagikan satu set kartu secara elektronik. Mereka kemudian dapat memilih kartu mana yang akan disimpan dan mana yang akan dibuang, dengan tujuan membentuk kartu dengan peringkat tertinggi.
Mesin bola tangkas sering ditemukan di kasino darat, serta di platform perjudian online tertentu yang diperuntukkan bagi pemain Indonesia. Game ini telah mendapatkan pengikut setia selama bertahun-tahun, berkat gameplaynya yang serba cepat dan potensi kemenangan besar.
Seperti bentuk perjudian apa pun, bola tangkas memiliki risiko tertentu, dan pemain harus selalu bertaruh secara bertanggung jawab. Penting untuk menetapkan batasan berapa banyak uang dan waktu yang ingin Anda habiskan untuk bermain game, dan untuk menghindari kerugian.
Dalam beberapa tahun terakhir, terdapat upaya untuk mengatur dan memantau industri bola tangkas di Indonesia untuk memastikan permainan yang adil dan melindungi pemain dari penipuan dan eksploitasi. Hal ini mencakup langkah-langkah seperti persyaratan perizinan bagi operator dan pembatasan iklan dan promosi.
https://www.mersinindex.com/ | softwareindustrie24334 | |
1,864,676 | Create a React project from scratch | I want to share the steps I do when I create a new React project from scratch. First, I choose Next... | 0 | 2024-05-25T08:07:24 | https://dev.to/shehzadhussain/create-a-react-project-from-scratch-3fn8 | webdev, javascript, react, programming | I want to share the steps I do when I create a new React project from scratch.
First, I choose Next js as React framework because nowadays is the best practice recommended by React team in the new documentation released recently. Moreover, it is better than starting a new React project with Create React App because Next js provides you with many tools and features integrated out of the box, and it is the best approach if you want good SEO for your website.
We will cover the steps for creating a Next js project on the local machine and uploading the project to GitHub.
## Steps
Placed in the folder where you want to create the project, execute the following command:
npx create-next-app@latest --typescript
I like adding 'typescript' in my projects because of better bug detection prematurely and self-code documentation.
I like to make a file named '.npmrc' in the root of the project with the following content:
save-exact=true
It helps install packages in the future with a specific version set in the package.json. Thanks to that, we control the versions we install on our project.
If you are using the src folder and you want to use Tailwind CSS for styles (per default with Next.js installation), you must put this on the 'tailwind.config.js' file for proper installation of Tailwind CSS:
content: ["./src/**/*.{js,ts,jsx,tsx,mdx}"],
You can add the '.npmrc' file and 'tailwind.config.js' file with the modification to the git stage and do a git commit on the main branch to save these initial configurations.
Go to https://github.com/new. We log in to GitHub.
Fill the Repository name with the same word we have named the project in our local machine to keep consistency.
If you want to create a project without sharing the code online, mark the 'Private' option.
Click 'Create repository'
We come back to the project on the local machine and run the following command:
git remote add origin https://github.com/github_username/project_name
We execute this command to upload our main git branch to GitHub remote repository:
git push -u origin main
Following these steps, we get a React project initial setup ready to build excellent applications.
I hope you enjoyed the article.
Join my weekly newsletter, where I share articles to help you become a better front-end developer. You'll receive them directly to your inbox.
See you in the next post.
Have a great day! | shehzadhussain |
1,864,674 | Function Composition in JavaScript! 🛠️ | Function composition is a powerful technique to build clean, readable code by combining simple... | 0 | 2024-05-25T07:59:50 | https://dev.to/adii/function-composition-in-javascript-1306 | javascript | Function composition is a powerful technique to build clean, readable code by combining simple functions. Here’s a practical example:
1. Trim whitespace from a username
2. Convert the name to uppercase
3. Generate a greeting message
4. Check out this code snippet:
```jsx
let username = " Harley ";
const trim = (name) => name.trim();
const convertToUpper = (name) => name.toUpperCase();
const generateMessage = (name) => `Hello ${name}, Good Morning!`;
const result = generateMessage(convertToUpper(trim(username))); // it goes right to left
console.log(result); // "Hello HARLEY, Good Morning!"
```
By composing these functions, you can transform data step-by-step in a clear and efficient manner. This approach is not only elegant but also helps in maintaining and scaling your code.
Try it out and let me know what you think! 😊👇 | adii |
1,864,673 | 5 Powerful TypeScript Tricks | Unlock the full potential of TypeScript with these five powerful tricks that will improve your coding... | 0 | 2024-05-25T07:55:37 | https://dev.to/sachinchaurasiya/5-powerful-typescript-tricks-11lg | typescript, javascript, learning | Unlock the full potential of TypeScript with these five powerful tricks that will improve your coding skills. From securing your types with const assertions to mastering the keyof operator, these tips will help you write cleaner, more efficient code.
## Locking Down Your Types with `const` Assertions
Ever wanted to make sure your types stay the same throughout your code? That's where const assertions come in handy! Think of them as superglue for your types. When you use `as const`, TypeScript ensures nothing changes your types later on. It's like putting a "Do Not Touch" sign on your variables to keep them safe.
```typescript
const user = {
id: 1,
name: 'John Doe',
email: 'john.doe@example.com'
} as const;
type User = typeof user;
// This will cause a TypeScript error
// user.id = 2;
```
## Creating Custom Types with Pick
Imagine you have a large type, but you only need a few parts of it. No problem! With the `Pick` trick, you can create a new type that selects only what you need. It's like customizing your order at a restaurant – you get exactly what you want, without any extra stuff.
```typescript
interface User {
id: number;
name: string;
email: string;
}
type UserSummary = Pick<User, 'name' | 'email'>;
const user: User = {
id: 1,
name: 'John Doe',
email: 'john.doe@example.com'
};
const summary: UserSummary = {
name: user.name,
email: user.email
};
```
## Narrowing Down Your Options with Extract
Ever had a lot of choices but only needed a few specific ones? That's where `Extract` helps! It's like a magic wand that picks out exactly what you need from a list of options. Say goodbye to guesswork and hello to precision!
```typescript
type Fruit = 'apple' | 'banana' | 'cherry' | 'date';
type TropicalFruit = Extract<Fruit, 'banana' | 'date'>;
const myFruit: TropicalFruit = 'banana'; // Valid
// This will cause a TypeScript error
// const myFruit: TropicalFruit = 'apple';
```
## Keeping Things Safe and Sound with `Readonly`
Imagine you have some important data that should never change. That's where `Readonly` comes in! It's like putting your data in a secure vault with a strong lock. Once you make something `Readonly`, no one can change it.
```typescript
const fruits: ReadonlyArray<string> = ['apple', 'banana', 'cherry'];
// This will cause a TypeScript error
// fruits.push('date');
// This will also cause a TypeScript error
// fruits[1] = 'blueberry';
```
## Mastering the `keyof` Operator
Ever wanted to find out what keys are in an object? Meet `keyof` – your helpful tool! It shows you all the keys in an object, making it easier to work with your data.
```typescript
interface User {
id: number;
name: string;
email: string;
}
type UserKey = keyof User;
const key: UserKey = 'name'; // Valid
// This will cause a TypeScript error
// const invalidKey: UserKey = 'age';
```
## Conclusion
Unlock the full power of TypeScript with five simple tricks: use const assertions to lock your types, create custom types with Pick, narrow down choices with Extract, protect data with Readonly, and use the keyof operator to easily work with object keys. These tips will help you write cleaner and more efficient code.
That's all for this topic. Thank you for reading! If you found this article helpful, please consider liking, commenting, and sharing it with others.
## **Connect with me**
* [**LinkedIn**](https://www.linkedin.com/in/sachin-chaurasiya)
* [**Twitter**](https://twitter.com/sachindotcom)
* [**GitHub**](https://github.com/Sachin-chaurasiya) | sachinchaurasiya |
1,864,669 | How to upgrade Openshift 4.x | A tutorial on upgrading OpenShift | 0 | 2024-05-25T07:50:14 | https://dev.to/mkdev/how-to-upgrade-openshift-4x-5baa | openshift, gcp | ---
title: How to upgrade Openshift 4.x
published: true
description: A tutorial on upgrading OpenShift
tags: openshift, gcp
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/w35axfs3y5g5beu030sd.png
# Use a ratio of 100:42 for best results.
# published_at: 2024-05-25 07:47 +0000
---
You might remember our video showing [how to install OpenShift on GCP](https://www.youtube.com/watch?v=MPKhfrWzEKc). Today, we're going to learn how to update OpenShift in GCP as well, though the process is applicable to other platforms too.
First, we need to install our cluster. I recommend revisiting our previous video for that. Ultimately, you should have an `install-config.yaml` with your setup ready, and then execute:
```
./openshift-install create cluster --dir install --log-level=debug
```
As you recall from our video, we used OKD, which is the open-source version of OpenShift and matches the same version as OpenShift. We are currently on version 4.13, awaiting version 4.14. The primary difference is the version, but we'll manage that.
We'll start with version 4.10, aiming to upgrade to 4.13. First, we need to prepare our cluster:
* Perform all operations as a kubeadmin. If you're not, use RBAC to grant yourself the necessary permissions.
* Create an etc backup using one of the master nodes:
```
oc get nodes
```
Then connect to the node terminal:
```
oc debug --as-root node
```
Next, execute the command to backup your etc database:
```
/usr/local/bin/cluster-backup.sh /home/core/assets/backup
```
After a while, the backup completes, and you can list the backup files with an `ls` command.
* Since we're moving to 4.13, support for Red Hat 7 in worker nodes has been removed; Red Hat 8 is the minimum requirement.
* All your operators need to be updated before any system updates.
* Ensure no machine config pool is paused.
* With the installation of Kubernetes 1.26 in 4.13, some APIs will be deprecated. To check usage of these APIs, execute:
```
oc get apirequestcounts
```
Identify workloads using these APIs and update them according to the documentation.
Lastly, before starting the update, pause the machine healthcheck resource:
```
oc get machinehealthcheck -n openshift-machine-api
```
Then annotate it to pause:
```
oc -n openshift-machine-api annotate mhc cluster.x-k8s.io/paused=""
```
Remember to reactivate it after the update:
```
oc -n openshift-machine-api annotate mhc cluster.x-k8s.io/paused-
```
Checking with `oc version`, we see we are at version 4.10, specifically the OKD version. In Red Hat, there is a tool called Red Hat OpenShift Container Platform Update Graph that shows the upgrade path we need to follow.
For instance, if we start with the current channel at 4.10 stable, begin with OpenShift version 4.10.3, and target the latest version 4.13.14, the steps are as follows:
From 4.10.3 to 4.10.56, then 4.11.50, 4.12.36, and finally 4.13.14.
Here’s the plan: execute the `oc patch clusterversion` command to set the channel, followed by `oc adm upgrade` for each step.
There is also a GUI option that updates each minor version step by step as shown in the video.
I hope you've understood all the steps, and see you next time!
***
*Here' the same article in video form for your convenience:*
{% embed https://www.youtube.com/watch?v=HWmW5DxTr5Q %}
*This article was written [by Pablo Inigo Sanchez for mkdev.me](https://mkdev.me/posts/how-to-upgrade-openshift-4-x)* | mkdev_me |
1,857,341 | TIL: What is a Balint group? | Yesterday, my wife casually mentioned a term I wasn't familiar with - Balint group. A Balint group is... | 0 | 2024-05-25T07:49:10 | https://dev.to/shaharke/til-what-is-a-balint-group-4hok | downleft, psychology, todayilearned, tech | Yesterday, my wife casually mentioned a term I wasn't familiar with - [_Balint group_](https://www.americanbalintsociety.org/what_is_a_balint_group.php). A Balint group is a method of clinical supervision for doctors, started by the psychoanalysts Michael and Enid Balint in the 1950s in London. The aim is to help doctors better understand the psychological and emotional aspects of the doctor-patient relationship. In a Balint group session, a doctor presents a case involving a challenging patient. The group discusses the emotional dynamics and tries to understand the patient's inner experience and motivations, rather than focusing just on medical solutions.
It wouldn't be the first time I learned something new from my wife. What was surprising to me was that, without really knowing, I had participated in a form of a Balint group for two years and led one myself for the past year as part of an initiative called Downleft. I just never realized there was a professional term for what we were doing.
In Downleft, we form peer groups (e.g., tech leads) from different tech companies that meet on a monthly basis and share dilemmas from their work. Each session, a different participant presents a dilemma or a challenge they have, and a lot of what's happening next is not discussing solutions (which is something tech people love to do), but rather surfacing the organizational and personal dynamics that underpin the situation.
The meeting format is as follows: the presenter gives a 5-10 minute overview of their dilemma, then we go around the table and do a "questions round". During this round, participants are allowed only to ask questions and not give any other input. Once the round is over, we do another round where participants can give their input, share their experiences, or offer tips.
I've noticed two kinds of dynamics that are super interesting to see. Firstly, the questions round is no less useful than the second round. I've seen presenters starting to deeply reflect on their situation and come up with meaningful insights only by answering questions. Secondly, other members of the group often share their own similar dilemmas, validating many of the feelings and frustrations the presenter is having. I'm always amazed by how powerful this peer-validation process is.
I'm pretty sure that when Downleft was conceptualized by [Oren Ellenbogen](https://www.linkedin.com/in/orenellenbogen/), he was not aware of Balint groups, but the similarity is so striking that I would have to ask him if he was inspired by it. Surprisingly, Downleft is pretty unique in the tech industry. One would expect that such a simple and powerful format would be more widely adopted, but I'm pretty sure that is not the case. If you're reading this and familiar with similar types of groups, please leave a comment!
| shaharke |
1,863,964 | Solving Issues with og: Meta Tags: A Comprehensive Guide | Meta tags are snippets of text that describe a page's content; the og: meta tags, in particular, are... | 0 | 2024-05-25T07:46:47 | https://dev.to/riyanegi/solving-issues-with-og-meta-tags-a-comprehensive-guide-22c2 | webdev, javascript, metatags, ruby | Meta tags are snippets of text that describe a page's content; the og: meta tags, in particular, are essential for social media sharing. They control how your content appears when shared on platforms like Facebook, LinkedIn or Twitter, playing a crucial role in attracting clicks and engagement for your website.
##The Issue
Despite setting up my og: meta tags correctly, I faced a frustrating problem: the shared links on Facebook or linkedin were not displaying the correct thumbnail of the post. It showed the general thumbnail of my website, but not the specific post thumbnail I wanted from within the website. This inconsistency not only marred the appearance of my website's link but also potentially reducing traffic and engagement.
**Ruby version**
```ruby
set_meta_tags :og => {
:title => template.name,
:description => template.description,
:site_name => 'XYZ',
:image => template.cover_image_url
}
end
```
**JavaScript version**
```js
<head>
<meta property="og:title" content="${template.name}" />
<meta property="og:description" content="${template.description}" />
<meta property="og:site_name" content="XYZ" />
<meta property="og:image" content="${template.cover_image_url}" />
<title>My App</title>
</head>
```
##Troubleshooting Steps
When troubleshooting issues with og: meta tags, it's essential to follow a systematic approach to identify and resolve the problem. Here are the steps I took:
**1. Initial Checks**
First, ensure that the meta tags are correctly placed within the `<head>` section of your HTML document. Incorrect syntax, placement or indentation can cause social media platforms to misinterpret the tags.
```javascript
<!DOCTYPE html>
<html lang="en">
<head>
<meta property="og:title" content="Sample Title" />
<meta property="og:description" content="Sample Description" />
<meta property="og:site_name" content="XYZ" />
<meta property="og:image" content="https://example.com/image.jpg" />
<title>My App</title>
</head>
<body>
<h1>Hello, world!</h1>
</body>
</html>
```
**2. Check the URL**
Ensure that the URLs used in your meta tags are absolute and correct. Relative URLs might not be interpreted correctly by social media platforms.
<meta property="og:image" content="https://example.com/image.jpg" />
**3. Use Debugging Tools**
Each major social media platform provides tools to help debug and validate your meta tags. These tools can be immensely helpful in identifying issues.
- **Facebook Debugging Tool**: Sharing Debugger
- **Twitter Debugging Tool**: Card Validator
- **LinkedIn Debugging Tool**: Post Inspector
Enter your URL in these debugger tools. Review the link preview and make necessary adjustments based on the feedback.
**4. Common Pitfalls**
Ensure that your images meet the size and format requirements of each platform. For example:
**Facebook**: Minimum 200x200 pixels. Recommended size is 1200x630 pixels.
**Twitter**: Minimum 120x120 pixels. Recommended size is 1200x628 pixels.
**LinkedIn**: Minimum 1200x627 pixels. Recommended size is 1200x627 pixels.
Ensure the images are in the correct format (JPEG, PNG, etc.) and are accessible via the URL provided.
**5.Cache Issues**
Sometimes, even after fixing the meta tags, social media platforms might still show old data due to caching. Use the debugging tools mentioned above to refresh the cache. For Facebook, you can force a rescrape using the Sharing Debugger.
##The Solution
After extensive testing, I discovered that the issue was due to the absence of the `og:url ` meta tag. Social media platforms sometimes rely on this tag to properly link the meta information to the specific page. Here's how I fixed it:
**Adding the og:url Meta Tag**
**Ruby Version**
```ruby
def apply_meta_tag(template)
set_meta_tags og: {
title: template.name,
url: request.original_url, ##Add url explicitly
description: template.description,
site_name: 'XYZ',
image: template.cover_image_url
}
end
```
**JavaScript version**
```javascript
<head>
<meta property="og:url" content="${currentUrl}" /> // Add url explicitly
<meta property="og:title" content="${template.name}" />
<meta property="og:description" content="${template.description}" />
<meta property="og:site_name" content="XYZ" />
<meta property="og:image" content="${template.cover_image_url}" />
<title>${template.name}</title>
</head>
```
After making these changes, I verified the updated link preview on all platforms. The link previews now displayed the correct image consistently across Facebook, Twitter, and LinkedIn.
If you've encountered similar issues with og: meta tags, share your experiences and solutions in the comments below!
| riyanegi |
1,864,668 | Top Kubernetes Commands for Developers | Kubernetes, an open-source platform for automating the deployment, scaling, and operation of... | 27,507 | 2024-05-25T07:46:40 | https://dev.to/idsulik/top-kubernetes-commands-for-developers-g20 | kubernetes, kubectl, developer, container | [Kubernetes](https://kubernetes.io/), an open-source platform for automating the deployment, scaling, and operation of application containers, has become a fundamental tool for modern software development.
Here are some of the top Kubernetes commands every developer should know, along with comments explaining their usage:
### 1. `kubectl get`
The `kubectl get` command is essential for retrieving information about Kubernetes resources. It allows you to list various resources such as **pods**, **nodes**, **services**, **deployments**, etc.
- **Examples:**
```sh
# List all pods in the current namespace
kubectl get pods
# List all services in the current namespace
kubectl get services
# List all nodes in the cluster
kubectl get nodes
# List all deployments in the current namespace
kubectl get deployments
```
### 2. `kubectl describe`
The `kubectl describe` command provides detailed information about a specific resource. This is useful for debugging and understanding the state and events of a resource.
- **Examples:**
```sh
# Show detailed information about a specific pod
kubectl describe pod <pod-name>
# Show detailed information about a specific service
kubectl describe service <service-name>
# Show detailed information about a specific node
kubectl describe node <node-name>
# Show detailed information about a specific deployment
kubectl describe deployment <deployment-name>
```
### 3. `kubectl logs`
The `kubectl logs` command fetches the logs of a specific pod or container. This is crucial for debugging application issues.
- **Examples:**
```sh
# Retrieve the logs from a specific pod
kubectl logs <pod-name>
# Retrieve the logs from a specific container in a pod
kubectl logs <pod-name> -c <container-name>
# Retrieve the logs from the previous instance of a container in a pod
kubectl logs <pod-name> -c <container-name> --previous
# Retrieve logs from the last 5 minutes
kubectl logs <pod-name> --since=5m
```
### 4. `kubectl exec`
The `kubectl exec` command allows you to execute commands inside a container. This is particularly useful for debugging and inspecting the state of your application from within the container.
- **Examples:**
```sh
# Start an interactive shell session in a specific pod
kubectl exec -it <pod-name> -- /bin/bash
# Execute a specific command in a specific pod
kubectl exec -it <pod-name> -- <command>
```
### 5. `kubectl apply`
The `kubectl apply` command applies changes to a resource by filename or stdin. It's commonly used to create or update resources defined in YAML or JSON files.
- **Examples:**
```sh
# Apply changes from a specific YAML file
kubectl apply -f <filename.yaml>
# Apply changes from all YAML files in a directory
kubectl apply -f <directory-with-yaml-files>
```
### 6. `kubectl delete`
The `kubectl delete` command removes resources from your cluster. It's essential for cleaning up resources that are no longer needed.
- **Examples:**
```sh
# Delete a specific pod
kubectl delete pod <pod-name>
# Delete a specific service
kubectl delete service <service-name>
# Delete a specific deployment
kubectl delete deployment <deployment-name>
# Delete resources defined in a specific YAML file
kubectl delete -f <filename.yaml>
```
### 7. `kubectl scale`
The `kubectl scale` command adjusts the number of replicas for a deployment, replication controller, or replica set. This is useful for scaling your application up or down.
- **Examples:**
```sh
# Scale a deployment to a specific number of replicas
kubectl scale --replicas=<number> deployment/<deployment-name>
```
### 8. `kubectl rollout`
The `kubectl rollout` command manages the rollout of a resource. It can be used to **view**, **pause**, **resume**, and **undo** deployments.
- **Examples:**
```sh
# Check the status of a deployment rollout
kubectl rollout status deployment/<deployment-name>
# View the rollout history of a deployment
kubectl rollout history deployment/<deployment-name>
# Undo the last rollout of a deployment
kubectl rollout undo deployment/<deployment-name>
```
### 9. `kubectl port-forward`
The `kubectl port-forward` command forwards one or more local ports to a pod. This is helpful for accessing a service running in a pod from your local machine.
- **Examples:**
```sh
# Forward a local port to a port on a specific pod
kubectl port-forward pod/<pod-name> <local-port>:<pod-port>
```
### 10. `kubectl config`
The `kubectl config` command manages `kubeconfig` files. It can set context, display the current context, and modify configuration settings.
- **Examples:**
```sh
# View the current kubeconfig settings
kubectl config view
# List all contexts in the kubeconfig file
kubectl config get-contexts
# Switch to a specific context
kubectl config use-context <context-name>
```
### Conclusion
Mastering these Kubernetes commands will significantly improve your efficiency and effectiveness as a developer. Whether you're managing deployments, debugging issues, or scaling applications, these commands provide the foundation you need to work confidently with Kubernetes. | idsulik |
1,864,665 | Figma Designs into Web & Mobile Apps | For front-end developers, streamlining the process from design to deployment is crucial. If you use... | 0 | 2024-05-25T07:31:42 | https://dev.to/aakarshsahu15/figma-designs-into-web-mobile-apps-3oh5 | figma, webdev, figmatomobailapp | For front-end developers, streamlining the process from design to deployment is crucial. If you use Figma for your UI designs, DronaHQ can take your designs and convert them into functional web and mobile apps seamlessly. Here’s how you can leverage DronaHQ to enhance your workflow.
**Step 1: Designing in Figma**
Figma is ideal for creating detailed UI designs, including cards, buttons, calendars, and more. It offers an intuitive interface for creating these elements without worrying about the underlying code. Once your design is complete, you’re ready to move to the next step.
**Step 2: Exporting with Anima**
Traditionally, converting designs into functional web apps required manual coding, which can be tedious and error-prone. Anima simplifies this process. By installing the Anima plugin in Figma, you can export your designs directly into clean HTML and CSS code with a few clicks. This eliminates the need for manual coding, saving you time and reducing the risk of errors.
**Step 3: Customizing in DronaHQ**
With your HTML and CSS code ready, you can now use DronaHQ’s [Control Designer](https://docs.dronahq.com/control-designer/). This feature allows you to create and customize non-input controls without writing code. Copy and paste the HTML code from Anima into the Control Designer. Make any necessary adjustments to ensure your design functions as intended. Once everything is set, save and publish your component.
**Now what is DronaHQ?**
DronaHQ is a low-code app development platform to build comprehensive internal tools, admin panels, dashboards, customer portals, AI-enabled apps, public forms, or any custom business apps. With a user-friendly drag-and-drop interface, ready UI controls and a set of ready connectors teams can build both web and mobile (iOS & Android) apps.
You can sign up [here](https://www.dronahq.com/signup/)
**Key Features of DronaHQ**
Cross-Device Compatibility: DronaHQ ensures that your designs work seamlessly across both web and mobile devices. This allows you to create once and deploy anywhere without compatibility issues.
Extensive UI Control Marketplace: DronaHQ offers a marketplace with over 100 pre-built UI controls. This library can significantly speed up your development process, providing a variety of controls that are ready to integrate into your projects.
Data Integration: With DronaHQ, binding data to your UI controls is straightforward. You can use ready connectors and APIs to integrate data into your designs, ensuring your applications are dynamic and functional.
In summary, DronaHQ is a practical tool for front-end developers looking to streamline their workflow from Figma designs to functional web and mobile apps. By combining Figma’s design capabilities with DronaHQ’s development tools, you can eliminate the tedious steps of manual coding and focus on building effective, responsive applications. Try DronaHQ today to see how it can enhance your front-end development process. | aakarshsahu15 |
1,864,664 | Java Tidbits: Compare your Strings wisely! | Welcome to the first installment of Java Tidbits, a series where I share small and simple Java tips... | 0 | 2024-05-25T07:29:54 | https://dev.to/abhinav_nath/java-tidbits-compare-your-strings-wisely-2g2 | java, coding, programming, cleancode | Welcome to the first installment of **Java Tidbits**, a series where I share small and simple Java tips to help with day-to-day development and help developers avoid common mistakes.
### Let's begin
In Java, string comparison is a fundamental task, yet it often leads to subtle bugs if not done correctly. A common mistake among both new and experienced Java developers is using the `.equals()` method improperly during String comparisons.
In this blog, we'll explore why `"SOME_STRING".equals(someObj.getText())` is a safer and more reliable way of comparing strings than `someObj.getText().equals("SOME_STRING")`.
### Understanding `.equals()` in Java
The `equals()` method in Java is used to compare the content of two strings for equality. Unlike the `==` operator, which checks if two references point to the same object, `.equals()` compares the actual characters in the strings.
```java
String str1 = new String("hello");
String str2 = new String("hello");
System.out.println(str1 == str2); // false
System.out.println(str1.equals(str2)); // true
```
### The Common Pitfall
A common pattern you might see is:
```java
if (someObj.getText().equals("SOME_STRING")) {
// do something
}
```
At first glance, this seems perfectly fine. However, this approach has a hidden danger: if `someObj.getText()` returns `null`, it will throw a `NullPointerException`!
To avoid the risk of a `NullPointerException`, it is better to write the comparison as:
```java
if ("SOME_STRING".equals(someObj.getText())) {
// do something
}
```
Here's why this is better:
1. **Null Safety:** When `"SOME_STRING"` is a string literal, it is guaranteed to be non-null. Therefore, calling `.equals()` on it ensures that the method is always invoked on a valid object, even if `someObj.getText()` returns `null`. This prevents the dreaded `NullPointerException`.
2. **Readability and Intent:** Writing `"SOME_STRING".equals(someObj.getText())` makes it immediately clear that you are comparing a constant value against a variable value. This enhances readability and intent of the code.
3. **Consistency:** Adopting this pattern consistently across your codebase helps in maintaining uniformity and reduces the chances of null-related bugs.
### Conclusion
Both new and experienced developers can overlook this simple yet crucial detail. It's an easy mistake to make, especially when you're confident that the method (like `someObj.getText()`) won't return `null`.
Facing a `NullPointerException` because of this mistake can lead to the coding equivalent of slipping on a banana peel. It is an embarrassing stumble that can be easily avoided with a bit of defensive programming!
---
[](https://buymeacoffee.com/abhinav_nath)
| abhinav_nath |
1,864,663 | Enhance Your Fruit Juice Production with Modern Machinery | Enhance Your Fruit Juice Production with Modern Machinery Fruit juice is a prominent beverage for... | 0 | 2024-05-25T07:28:53 | https://dev.to/safiyaaa/enhance-your-fruit-juice-production-with-modern-machinery-102c | fruit, juice | Enhance Your Fruit Juice Production with Modern Machinery
Fruit juice is a prominent beverage for everybody, from children to grownups. Consuming healthy fruit juice benefits your health and wellness as well as offers a delicious method to obtain the power as well as vitamins you require. Today, with modern machinery, the juice production procedure has ended up being much a lot extra effective, risk-free, as well as simpler compared to ever. We'll check out the benefits of utilizing modern machinery in fruit juice production, development in the market, ways to utilize the machinery, solutions, as well as high top premium, as well as different requests.
Benefits of Utilizing Modern Machinery
One benefit of utilizing modern Juicing Series machinery is actually that it can easily manage a lot of extra fruits at once, making the procedure much a lot extra effective. Furthermore, modern machinery can easily produce fruits quicker as well as much a lot extra regularly, making the production procedure quicker as well as a lot extra affordable. The machinery likewise creates top-quality juice with very little waste. In recap, modern machinery can easily:
- Manage a lot of extra fruits
- Procedure fruits quicker
- Create top-quality juice with very little waste
- Increase efficiency as well as effectiveness
Development in the Market
The Small Fruit Juice Production Line market has viewed a great deal of development previously a couple of years. The emphasis has moved from handbook handling towards a much more automated as well as accurate procedure. Automation has allowed devices to manage a lot of extra functions with higher accuracy. With the assistance of robotics, fruit arranging, peeling off, as well as reducing has ended up being much a lot extra accurate, effective, as well as quicker. This has produced constant preference, structure, as well as high top premium of juice. The development in the juice market has produced:
- Enhanced uniformity of preference, structure, as well as high-top premium
- Much a lot more accurate as well as effective arranging, peeling off, as well as reducing
- Much more secure production techniques
- Higher efficiency as well as effectiveness
Security
Modern machinery is developed to become risk-free for the driver as well as the customer. The devices are developed to avoid contamination as well as guarantee health throughout as well as after the production procedure. Furthermore, they are created with security functions such as sensing units that spot any type of problem or even contamination in the fruits. Such functions maintain the procedure risk-free as well as ensure the higher requirements of the end product. For that reason, using modern machinery assurances:
- A risk-free production procedure
- A sanitary atmosphere
- Discovery as well as avoidance of contamination
- Top quality as well as risk-free end product
Utilize
Modern Filtering Series machinery is available in various dimensions, designs, as well as setups, depending upon the fruit kinds, production amounts, as well as various other particular demands. Before buying any type of machinery, you have to think about the complying with elements:
- The kind of fruits you wish to procedure
- The amount of the fruits you wish to procedure
- The particular handling methods you need
- The product packing demands
Various machinery is developed to manage different fruits as well as their particular handling demands. Guarantee that you obtain a device particularly developed for your fruits as well as production amount requirements.
Ways to Utilize
Modern machinery is easy to use as well as simple to run. Before running any type of device, it is necessary to check out the individual handbook thoroughly as well as go through education towards comprehending its procedure as well as security functions. Furthermore, you have to preserve the machinery routinely to always keep it in great functioning problem, prolong the life expectancy, as well as decrease unexpected breakdowns.
The solution as well as High premium
Modern machinery is developed to become effective as well as final lengthy with appropriate upkeep. The producer ought to offer an appropriate screening of the machinery before acquisition, direction handbooks, as well as after-sales sustain, consisting of maintenance as well as upkeep. Furthermore, the machinery ought to have a guarantee for any type of manufacturing facility problems as well as breakdowns.
Request
Modern machinery is certainly not just restricted to massive production but also small-scale production, also. The devices can easily likewise be utilized towards the procedure of a selection of fruits right into various juice kinds, smoothies, as well as various other items.
Source: https://www.enkeweijx.com/Small-fruit-juice-production-line | safiyaaa |
1,864,662 | Are you still using getYear method in Javascript?? | I've worked as a frontend developer for 4 years. I mean, I've used getYear method a lot. But I have... | 0 | 2024-05-25T07:25:59 | https://dev.to/kupumaru21/are-you-still-using-getyear-method-264e | javascript, typescript | I've worked as a frontend developer for 4 years.
I mean, I've used [`getYear`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getYear) method a lot.
But I have to say good bye to it. 😭
Because it's no longer recomended because of "year 2000 problem".
So let's use [`getFullYear`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear) method!!
| kupumaru21 |
1,864,660 | Don't use Typescript if your project is small | TypeScript is a super-charged version of JavaScript that adds static typing. This means you define... | 0 | 2024-05-25T07:24:12 | https://dev.to/homayunmmdy/dont-use-typescript-if-your-project-is-small-4fmp | typescript | TypeScript is a super-charged version of JavaScript that adds static typing. This means you define what kind of data your variables can hold (like numbers or text) before you even write the code. While TypeScript is awesome for big projects, it can sometimes feel like overkill for smaller ones. Let's explore why you might be okay sticking with plain JavaScript for your next mini-project.
1. Speed and Simplicity:
For quick experiments or throwaway scripts, setting up TypeScript might add unnecessary steps. You can jump right into coding with JavaScript, whereas TypeScript needs configuration and compilation.
2. Less Code to Write:
TypeScript adds type annotations, which are basically labels for your variables. While helpful, they can add extra lines of code, especially for simple projects.
3. Debugging Might Feel Familiar:
If you're already comfortable with JavaScript errors, you might not need the extra help TypeScript provides in catching type mismatches.
But Here's the Catch:
Even small projects can benefit from some TypeScript love! Here's why you might reconsider ditching it entirely:
Early Bug Catching: TypeScript can identify errors during development, saving you debugging headaches later.
Improved Readability: Types make your code clearer, especially when working with others or coming back to your project later.
Future-Proofing: If your small project has the potential to grow bigger, having TypeScript from the start can make scaling smoother.
The Verdict?
There's no right or wrong answer. If you're prioritizing speed and simplicity for a small, contained project, JavaScript might be perfect. But if you value catching errors early, improving code clarity, or building a project with potential to grow, TypeScript is still a great choice, even for small projects.
| homayunmmdy |
1,864,641 | Reliable Coconut Meat Processing Solutions for Your Business | Are you looking for a new and reliable way to process coconut meat for your business? Look no further... | 0 | 2024-05-25T07:16:59 | https://dev.to/safiyaaa/reliable-coconut-meat-processing-solutions-for-your-business-f0p | equipment | Are you looking for a new and reliable way to process coconut meat for your business? Look no further than our coconut meat processing solutions!
Features of Our Coconut Meat Processing Systems:
Our solutions are innovative, safe, and an task like easy utilize, making them probably the most option like ideal any company that wants to create high-quality items.
With your solutions, it is possible to produce a deal like excellent of meat with just work like minimal freeing up time and resources for just about any the areas of one's internet business.
Innovation and protection:
All of us of specialists spent Coconut Meat Processing Equipment some time working difficult to produce meat like coconut solutions that are cutting-edge and safe.
We make use of the technology like most like advanced ensure which our equipment is efficient and effective, while also taking measures to ensure that everyone else utilizing our gear stays safe.
Use and Ways To Use Our Solutions:
Our coconut meat processing Crushing Series solutions are really easy to use, even for people who have never ever caused coconut meat before.
Simply proceed with the directions supplied with our gear and you shall rapidly start processing your coconut meat for use in lots of products that are very different.
Provider and Quality:
At our business, we believe in providing our clients with all the solution like most beneficial and quality feasible.
This is exactly why we work hard to guarantee our equipment is often in top condition like working and that most of us is certainly available to answer any questions you've probably.
Application of Our Solutions:
Our coconut meat processing solutions are of help for a multitude of applications.
Whether you need to create coconut oil, Coconut milk, or just prepare your coconut meat for use in cooking and baking, our gear is the solution like ideal.
In conclusion, if you are in need of a reliable and efficient way to process coconut meat for your business, look no further than our coconut meat processing solutions. With our innovative equipment, easy-to-use process, and commitment to quality and safety, you can be sure that you are making the best choice for your business.
Source: https://www.enkeweijx.com/Coconut-meat-processing-equipment | safiyaaa |
1,852,772 | Running I2C on Pro Micro (2) - Connecting with I2C | It seems that I2C is often used to connect multiple ICs and perform processing in custom keyboards and sensor modules. In this series, we will use the I2C port on the Pro Micro to operate an IO expander. In this second article of the series, we will look at the basics of I2C and its use on the Pro Micro. | 27,363 | 2024-05-25T07:09:27 | https://dev.to/esplo/running-i2c-on-pro-micro-2-connecting-with-i2c-1l44 | i2c, arduino, keyboard | ---
title: Running I2C on Pro Micro (2) - Connecting with I2C
published: true
description: It seems that I2C is often used to connect multiple ICs and perform processing in custom keyboards and sensor modules. In this series, we will use the I2C port on the Pro Micro to operate an IO expander. In this second article of the series, we will look at the basics of I2C and its use on the Pro Micro.
tags: I2C, arduino, keyboard
series: Running I2C on Pro Micro
---
In this second article of the series, we will look at the basics of I2C and its use on the Pro Micro.
## Basics of I2C
Although it is actually I²C (I-squared-C), it is commonly referred to as I2C for convenience.
Using two lines, the clock signal (SCL) and the data signal (SDA), communication can be established by simply connecting each IC. It seems to be a good standard for systems that require scalability. There is also a [compatible higher version called I3C](https://eetimes.itmedia.co.jp/ee/articles/1411/17/news058.html).
<figure><img src="https://res.cloudinary.com/purucloud/image/upload/v1713003829/wp_assets/n77c6ff740c6b_1711340522518-O7SvM1kGng.png" alt=""><figcaption>Citation: https://www.rohm.co.jp/electronics-basics/micon/mi_what7</figcaption></figure>
The IC that operates the connected devices is called the master, and the connected devices are called slaves. It is common to process in a 1:many configuration.
For more details on the standard: [https://www.nxp.com/docs/ja/user-guide/UM10204.pdf](https://www.nxp.com/docs/ja/user-guide/UM10204.pdf)
### Communication Speed and Standards
The communication speed depends on which I2C standard the connected devices support and the design of the circuit.
<figure><img src="https://res.cloudinary.com/purucloud/image/upload/v1712903930/wp_assets/image.png" alt=""><figcaption>Citation: https://en.wikipedia.org/wiki/I%C2%B2C</figcaption></figure>
Among the I2C standards, there are significant differences depending on the standard. The slower the communication speed, the more relaxed the constraints, but they become stricter gradually, and in the case of Ultra-fast mode, it becomes unidirectional communication.
The Pro Micro (ATmega32U4) seems to support Fast mode at 400kbit/s and 1Mbit/s (citation needed). For custom keyboard applications, 400kbit/s is likely sufficient, so we will consider using the less restrictive Fast mode.
### Connection Method
Communication can be established by simply connecting SCL and SDA. It is also possible to [daisy chain](https://ja.wikipedia.org/wiki/%E3%83%87%E3%82%A4%E3%82%B8%E3%83%BC%E3%83%81%E3%82%A7%E3%83%BC%E3%83%B3), i.e., extending the cable from one IC to another. The important thing here is to **insert a pull-up resistor of appropriate size**.
In Fast mode, the rise time (time to change from low to high) is a maximum of `300ns` ([reference](https://www.nxp.com/docs/ja/user-guide/UM10204.pdf)). The resistor is placed to meet this requirement, but the calculation is quite difficult. In short, it should not be too large or too small. It also depends on the cable and devices. The maximum capacitance is `400pF`, which corresponds to about 3-4 meters of (typical) cable ([reference](https://vabc.hatenadiary.jp/entry/2022/09/04/173253)). It is difficult, so I used a calculation site. Convenient.
[I2C Bus Pull-up Resistor Calculation keisan.casio.jp](https://keisan.casio.jp/exec/user/1649986426)
When calculating as a test, it turns out that 1kΩ is just right for a large estimate of 350pF. If you are assuming long cables, it is good to place 1kΩ. If the cable is short, a larger resistor is fine (requires calculation).
<figure><img src="https://res.cloudinary.com/purucloud/image/upload/v1712903924/wp_assets/image-1.png" alt=""><figcaption>https://keisan.casio.jp/exec/user/1649986426</figcaption></figure>
### Communication Method
The master specifies the address for sending and receiving. Therefore, it is necessary to know the address of the slave device in advance. You can also write a program to scan the addresses of connected devices, so it is good to handle it properly during initialization. We will look at this in detail when creating the program.
According to the standard, 7 bits are used for the address. Therefore, theoretically, it supports 2^7=128 devices. However, it is limited or increased by various methods. This will be discussed later.
## I2C Module Used This Time
There are various I2C-compatible modules in the world, but this time we will use an **IO expander** to increase the number of pins.
An IO expander is an IC for expanding IO pins. The Pro Micro has about 18 general-purpose pins, but it is useful when you want more.
This time we will use the [**MCP23017**](https://akizukidenshi.com/goodsaffix/mcp23017_mcp23s17.pdf) ([190 yen at Akizuki](https://akizukidenshi.com/catalog/g/g109486/)), which can increase by 16 bits (16 pins). However, only 3 bits of the address can be set, and the upper 4 bits are fixed (0x20-0x27). Therefore, it is limited to 8 devices when connected normally.
The MCP23017 can use internal pull-up resistors for the I/O pins. It is convenient because you do not have to prepare them yourself, but since they are weak at 100kΩ, it is often necessary to add your own.
## Parts to Prepare
Let's actually try to operate it on a breadboard. First, let's connect one and see if it works. To confirm operation, we will connect a switch to an appropriate pin and see if it responds when pressed.
This time, we will use I2C communication with a 1kΩ pull-up resistor to confirm the operation of the MCP23017.
The parts used in the first session are assumed to be already available. We will briefly overview the necessary parts.
- MCP23017 x1
- 1kΩ resistors x2
- Breadboard ([BB-801](https://akizukidenshi.com/catalog/g/g105294/) etc.) x1
- If you want to separate the breadboard. If it fits on one, that is fine too.
### Items Used in the First Session
- Breadboard ([BB-801](https://akizukidenshi.com/catalog/g/g105294/) etc.) x1
- [Pro Micro + Pin Header](https://shop.yushakobo.jp/products/3905) x1
- Reset switch x1
- [Jumper wires](https://akizukidenshi.com/catalog/g/g105159/) x many
- Cable to connect Pro Micro to PC
## Wiring
Check the pin assignment of the Pro Micro, which you will see many times, and check the positions of SCL/SDA.
<figure><img src="https://res.cloudinary.com/purucloud/image/upload/v1712903964/wp_assets/Screenshot_2024-03-26_at_15.44.44.png" alt=""><figcaption>Citation: https://cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/ProMicro16MHzv1.pdf</figcaption></figure>
While looking at the [MCP23017 datasheet](https://akizukidenshi.com/goodsaffix/mcp23017_mcp23s17.pdf), decide which pin to insert what. Be careful not to mix up the positions of SCL and SDA. Also, connect a test switch to GPB0 (pin 1) of the MCP23017, connect VCC and GND, and connect #RST to VCC. This completes the standard work. This time, set all addresses to low and make it `0x20`.
<figure><img src="https://res.cloudinary.com/purucloud/image/upload/v1713879109/wp_assets/i2c_bb_sw.png" alt=""><figcaption>Actual: Connected one I2C device</figcaption></figure>
We will look at the details of the datasheet in the next article.
## Program Creation (I2C Scanner Edition)
When using I2C, check which devices are connected at the setup stage and process them accordingly.
First, let's simply check if the connection is successful. There is a convenient program called **I2C Scanner** for such occasions. Copy and paste it and try running it.
[Arduino Playground - I2cScanner playground.arduino.cc](https://playground.arduino.cc/Main/I2cScanner/)
If successful, the following display will appear on the Serial Monitor. Change the address wiring and check if the display changes.
| esplo |
1,864,640 | AWESOME AI TOOLS YOU DID NOT KNOW EXIST 😲 | Literally taking over the world. But let's just keep that traumatic chatGPT aside and talk about 3... | 0 | 2024-05-25T07:07:08 | https://dev.to/mince/generate-3d-models-from-text-3ida | javascript, webdev, beginners, tutorial | Literally taking over the world. But let's just keep that traumatic chatGPT aside and talk about 3 awesome AI tools, you never heard. The last own is a BANGER ! keep reading to find out the awesome new cutting edge generative AI tools
## Pika
Ever, thought of making a movie completely by yourself. NO cameras or lighting just ACTION ! Well well, your dream just came true. PIKA allows you to generate videos from text or images. It starts completely free. However you will have to pay for tokens. To get started go to their official website and just enter the prompt or drag and drop the image. You will be good to go. It has advanced features like your video comes along with perfect sound effects. You can stylize your video an so on. It has enormous possibilities. I will give link to all website in the end. You can generate awesome movies when you combine Pika and other video generation tools like Haiper and RunwayML
## MusicFX
MusicFX is an AI experiment from google. It allows you to generate awesome music completely from text. I did not face any token issue with it so far. I guess It's completely free like gemini default version. I made thrilling music with it. However, there is training slope for MusicFX. The prompt should be really well formatted and explained in order to get the perfect music you are expecting to get. Sometimes you get really trash music, but come on you can make a music video in minutes when you combine both these tools.
_MusicFX is not yet available in some countries_
## DEMO
Here is a short movie I made with the above mentioned. The music from MusicFX and videos from RunwayML, Haiper and PIKA
{% embed https://player.vimeo.com/video/950186184?badge=0&autopause=0&player_id=0&app_id=58479 %}
## LUMA LABS
The final thing I want to tell you about is LUMA LABS. this allows you to create 3D MODELS ! Yeah enter the prompt and you get a complete 3d model that can be downloaded. As of now, it's not that good but is improving. Then 3d model comes with a texture also
## END
Thank you guys for reading. Please do give a reaction and comment how the post was. Now the shoutout time:
SHOUTOUT TO:
@nikhivishwa
@cyberbuck_07da329074be7ff
@alrope
| mince |
1,864,639 | Leading Technology in Industrial Juicers for Juice Manufacturers | The Leading Technology in Industrial Juicers for Juice Manufacturers Industrial juicers play a... | 0 | 2024-05-25T07:06:52 | https://dev.to/safiyaaa/leading-technology-in-industrial-juicers-for-juice-manufacturers-dk | juicers | The Leading Technology in Industrial Juicers for Juice Manufacturers
Industrial juicers play a crucial role in the production of fresh and nutritious juices by manufacturers. With the advancement of technology, the juicing process has become more efficient and effective. We will explore the advantages of leading technology in industrial juicers for manufacturers and how it has changed the game for the juicing industry.
Features of Leading Technology in Industrial Juicers
The technology like key industrial juicers was created to provide maximum benefits to juice manufacturers.
These advantages include:
Higher Juice Yield: Juicing Series Advanced technology in commercial juicers helps make certain that maximum juice is removed from vegetables and fruits, causing an yield like increased of.
Faster Juicing Process: the technology like key industrial juicers has made the process like juicing plus much more efficient, decreasing the time taken fully to create juice.
Economical: the use of higher level technology in commercial juicers has resulted in reduced costs which can be functional juice manufacturers.
Simply because the machines can extract more from the degree like exact is same of, causing less waste.
Improved Quality: the technology like better in industrial juicers produces high-quality juice like more nourishing and flavorful, hence fulfilling customer demands for healthy and delicious beverages.
Reduced repair: the effective use of advanced technology in commercial juicers has resulted in machines that can easily be safer to maintain and need less downtime for repairs.
Innovation in Industrial Juicers
Innovation happens to function as the force like driving the growth of leading technology in industrial juicers.
Manufacturers are constantly searching for brand new and techniques are enhanced juice like extract veggies and fruit.
A number of the latest innovations in commercial juicers consist of:
Cold-Press Juicing: Cold-press juicing is an innovative new technology that extracts juice using a press like hydraulic.
This technique is believed to carry more nutrients, enzymes, and minerals once you look at the juice, producing a drink like healthiest.
Pulp modification: Pulp modification is an take into account a juicers that are few commercial permits manufacturers to modify the amount of pulp into the juice.
This particular feature is especially beneficial in creating juices with various textures.
Small Fruit Juice Production Line: Smart sensors in commercial juicers can identify and adapt to the hardness of different produce, ultimately causing an increased yield of juice.
Security in Industrial Juicers
Security is actually a concern like high manufacturers whenever using juicers that are commercial.
The technology like leading commercial juicers has integrated safety features that protect employees making sure that the machines are safe to utilize.
A few of these safety features consist of:
Crisis Stop: The emergency end key is a safety function that instantly stops the juicer in case of a crisis.
Safety Locks: Security locks prevent the equipment from starting if the security address is not in place or in the event that feed chute will not be fully closed.
Automated Shut-Off: Automatic shut-off is really a safety function that switches from the juicer whenever it overheats or if your blockage is had by you inside the machine.
Utilization of Industrial Juicers
One of the keys technology in commercial juicers has made the devices much easier to utilize, even though you are not familiar with the procedure like juicing.
Here are some guidelines on the best way to make use of juicers which are commercial
Wash and Prepare Produce: Wash and prepare the produce by eliminating any debris or dust before inserting it to the juicer.
Begin the Juicer: start the juicer and slowly feed the create in to the feed chute.
Collect the Juice: Gather the juice inside a container and discard the pulp.
Clean the Juicer: After use, clean the juicer thoroughly to avoid any buildup that will cause problems for the device.
Service and Quality of Industrial Juicers
Manufacturers must ensure that their industrial juicers are of good quality and enjoy upkeep like regular prolong their lifespan.
The technology like key juicers that are commercial made it easier for manufacturers to service their machines by incorporating features such as for example:
Quick-Release Mechanisms: Quick-release mechanisms ensure it is simpler to eliminate and change components, reducing downtime for repairs.
Self-Cleaning: Some industrial juicers have function like self-cleaning means it is advisable to completely clean the gear after usage.
Durability: Industrial juicers made with the technology like best are made to final, making certain manufacturers have the obtain the most from their investment.
Application of Industrial Juicers
Industrial juicers can be used in a quantity like real of such as for instance juice bars, restaurants, and supermarkets. They are used by manufacturers to create juice in large amounts for circulation.
The technology like leading commercial juicers has managed to get possible to create juice for a sizable scale without compromising on quality.
Conclusion
The leading technology in Juicing Series has revolutionized the juicing industry by offering maximum benefits to juice manufacturers. The advantages of leading technology include higher juice yield, faster juicing process, cost-effectiveness, improved quality, and reduced maintenance. Innovations in industrial juicers have made the machines more efficient and effective, resulting in better juicing outcomes. Safety features ensure that workers are protected while using the machine, and the machines are easy to use, service, and maintain, with a high level of durability. The application of industrial juicers in a variety of settings makes them a valuable investment for manufacturers seeking to produce high-quality juice on a large scale.
Source: https://www.enkeweijx.com/Juicing-series | safiyaaa |
1,864,638 | JavaScript Data Types Primitive vs Non-Primitive | Good day Everyone! Today we will discuss the Data Types of JavaScript Primitive and Non-Primitive.... | 0 | 2024-05-25T07:05:41 | https://dev.to/sromelrey/javascript-data-types-primitive-vs-non-primitive-1920 | java, beginners, programming, tutorial | Good day Everyone! Today we will discuss the Data Types of JavaScript Primitive and Non-Primitive. Learn alongside me, and share your own insights. Enjoy the read!
## Goals and Objectives in this topic:
- Understand the concept of Data Types:
- Grasp the fundamental idea of data types in JavaScript.
- Differentiate Between Primitive and Non-Primitive Data Types:
- Clearly distinguish between primitive and non-primitive types.
- Understand the immutability of primitive and mutability of non-primitive types
#### In JavaScript, data types define the kind of data a _variable can hold and how that data is stored and manipulated_.
There are two main categories of data types:
### 1. Primitive Data Types:
Primitive data types represent simple, fundamental values. They are immutable, meaning their values cannot be changed directly after they are assigned. When you reassign a new value to a primitive variable, a new memory location is created to store the new value.
### Here's a simple example to illustrate the immutability of primitive types:
```
var age = 12;
age = 2;
```
#### 1. Memory Allocation and Assignment:
- Initially, age is declared with var. It gets assigned undefined (default for var).
- Then, age is assigned the value 12.
- Memory is allocated in the Heap to store this value.
#### 2. Reassignment:
- When you write age = 2;, a new memory location is allocated in the Heap to store the value 2.
- The variable age now references this new memory location.
### 3. Garbage Collection:
- JavaScript has a garbage collector that automatically cleans up unused memory.
- Since there are no more references to the memory location that held 12 (the original value), it becomes a candidate for garbage collection.
#### Summary:
- The value `12` is no longer accessible through the variable age after the reassignment.
- It might eventually be removed from the Heap by the garbage collector when it determines it's no longer needed.
Here are the common `primitive `data types in JavaScript:
1. **Number:** Represents numeric values, including integers (whole numbers) and decimals. (e.g., 12, 3.14, -100)
2. **String:** Represents sequences of characters, used for text. (e.g., "Hello", 'World')
3. **Boolean:** Represents logical values, either true or false.
4. **Undefined:** Indicates that a variable has been declared but not yet assigned a value.
5. **Null:** Represents the intentional absence of a value. (different from undefined)
6. **Symbol (ES6+):** A unique and immutable identifier (rarely used).
7. **BigInt (ES 2020):** A type which is the built-in object that can represent whole numbers larger than `253 – 1`.
### 2. Non-Primitive Data Types:
Non-primitive data types, also called reference types, are more complex and store collections of data. They are mutable, meaning their content can be modified after they are created. When you assign a non-primitive data type to a variable, you're storing a reference (memory address) to the actual data location in the Heap (unstructured storage area). Any changes made through the variable reference will affect the original data.
### Here's a simple example to illustrate the mutability of Non-primitive
```javascript
// * Object Creation
// ? We create an object person with properties name ("Alice") and age (30):
const person = {
name: "Alice",
age: 30
};
// * Initial Output:
console.log(person);
// ? Output: { name: "Alice", age: 30 }
// * Object Mutation:
person.age = 31;
// ? Modifying a property of the object
// * Final Output:
console.log(person);
//? Output: { name: "Alice", age: 31 }
```
### Key Points:
- `const` prevents reassignment of the object but allows property modification.
- person.age = 31; changes the age property, showing object mutability.
- You can modify or add properties using dot notation (e.g., person.city = "New York";).
Here are some common non-primitive data types in JavaScript:
1. **Object:** A collection of key-value pairs used to store structured data.
(e.g., `{ name: "Alice", age: 30 }`)
2. **Array:** An ordered collection of items, which can hold different data types.
(e.g., `[1, "apple", true]`)
3. **Function:** A reusable block of code that performs a specific task.
## Key Differences:
## Conclusion:
Understanding primitive and non-primitive data types is crucial for writing efficient and predictable JavaScript code. You need to choose the appropriate data type based on the kind of data you want to store and manipulate.
This understanding enables you to write more efficient and predictable JavaScript code.
Thanks for reading ❤️❤️❤️!
| sromelrey |
1,864,637 | Fine Tune CodeT5+ | {'pass@1': 0.01798780487804878, 'pass@10': 0.0544369264353407} Salesforce/codet5p-770m-py {'pass@1':... | 0 | 2024-05-25T07:04:55 | https://dev.to/dtruong46me/fine-tune-codet5-1gpo | {'pass@1': 0.01798780487804878, 'pass@10': 0.0544369264353407}
Salesforce/codet5p-770m-py
{'pass@1': 0.10403963414634146, 'pass@10': 0.2681213603469701}
| dtruong46me | |
1,864,636 | Creating Spring Data Repositories for JPA: A Detailed Guide | Spring Data JPA is a powerful framework that makes it easy to work with relational databases in... | 0 | 2024-05-25T07:04:35 | https://dev.to/nikhilxd/creating-spring-data-repositories-for-jpa-a-detailed-guide-23p5 | webdev, javascript, programming, java | Spring Data JPA is a powerful framework that makes it easy to work with relational databases in Spring applications. It simplifies data access layers by providing an abstraction over common CRUD operations, enabling developers to focus more on business logic. In this blog, we'll delve into how to create Spring Data repositories for JPA, exploring key concepts and providing practical examples.
## Table of Contents
1. [Introduction to Spring Data JPA](#introduction-to-spring-data-jpa)
2. [Setting Up Your Spring Boot Project](#setting-up-your-spring-boot-project)
3. [Defining the Entity Class](#defining-the-entity-class)
4. [Creating the Repository Interface](#creating-the-repository-interface)
5. [Custom Queries in Spring Data JPA](#custom-queries-in-spring-data-jpa)
6. [Pagination and Sorting](#pagination-and-sorting)
7. [Auditing with Spring Data JPA](#auditing-with-spring-data-jpa)
8. [Conclusion](#conclusion)
## Introduction to Spring Data JPA
Spring Data JPA is part of the larger Spring Data family, which provides easy-to-use data access abstractions. It builds on top of the Java Persistence API (JPA), leveraging the power of Spring Framework to facilitate repository implementation. Key benefits include:
- Simplified data access layers with less boilerplate code.
- Built-in CRUD operations.
- Support for custom queries using JPQL, SQL, and method names.
- Integration with Spring Boot for streamlined setup.
## Setting Up Your Spring Boot Project
To get started with Spring Data JPA, we need to set up a Spring Boot project. You can create a new project using Spring Initializr or your preferred IDE.
### Dependencies
Ensure your `pom.xml` (for Maven) or `build.gradle` (for Gradle) includes the necessary dependencies:
**Maven:**
```xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
```
**Gradle:**
```groovy
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-web'
runtimeOnly 'com.h2database:h2'
}
```
## Defining the Entity Class
The first step in using Spring Data JPA is to define your entity class. An entity represents a table in your database.
### Example Entity
Let's create an entity class `User`:
```java
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String firstName;
private String lastName;
private String email;
// Getters and Setters
}
```
In this example, the `@Entity` annotation marks the class as a JPA entity. The `@Id` annotation specifies the primary key, and `@GeneratedValue` defines the primary key generation strategy.
## Creating the Repository Interface
Spring Data JPA provides a `CrudRepository` interface with CRUD methods. To create a repository, define an interface that extends `CrudRepository` or `JpaRepository`.
### Example Repository
```java
import org.springframework.data.jpa.repository.JpaRepository;
public interface UserRepository extends JpaRepository<User, Long> {
}
```
By extending `JpaRepository`, we inherit several methods for working with `User` persistence, including saving, deleting, and finding `User` entities.
## Custom Queries in Spring Data JPA
In addition to the built-in methods, you can define custom queries using method names, JPQL, or native SQL.
### Method Name Queries
Spring Data JPA can derive queries from method names:
```java
import java.util.List;
public interface UserRepository extends JpaRepository<User, Long> {
List<User> findByLastName(String lastName);
}
```
### JPQL Queries
Use the `@Query` annotation for JPQL queries:
```java
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
public interface UserRepository extends JpaRepository<User, Long> {
@Query("SELECT u FROM User u WHERE u.email = :email")
User findByEmail(@Param("email") String email);
}
```
### Native Queries
For complex queries, you might use native SQL:
```java
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
public interface UserRepository extends JpaRepository<User, Long> {
@Query(value = "SELECT * FROM User u WHERE u.email = :email", nativeQuery = true)
User findByEmailNative(@Param("email") String email);
}
```
## Pagination and Sorting
Spring Data JPA supports pagination and sorting out of the box. Use the `Pageable` and `Sort` parameters in repository methods.
### Pagination Example
```java
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
public interface UserRepository extends JpaRepository<User, Long> {
Page<User> findByLastName(String lastName, Pageable pageable);
}
```
### Sorting Example
```java
import java.util.List;
import org.springframework.data.domain.Sort;
public interface UserRepository extends JpaRepository<User, Long> {
List<User> findByFirstName(String firstName, Sort sort);
}
```
## Auditing with Spring Data JPA
Spring Data JPA supports auditing to automatically populate auditing fields like createdBy, createdDate, lastModifiedBy, and lastModifiedDate.
### Enable Auditing
First, enable auditing in your configuration class:
```java
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
@Configuration
@EnableJpaAuditing
public class JpaConfig {
}
```
### Auditing Fields in Entity
Next, add auditing fields to your entity:
```java
import javax.persistence.*;
import java.time.LocalDateTime;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;
@Entity
@EntityListeners(AuditingEntityListener.class)
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String firstName;
private String lastName;
private String email;
@CreatedDate
@Column(updatable = false)
private LocalDateTime createdDate;
@LastModifiedDate
private LocalDateTime lastModifiedDate;
// Getters and Setters
}
```
Spring Data JPA simplifies data access in Spring applications, providing powerful abstractions and reducing boilerplate code. By following this guide, you can set up and use Spring Data JPA repositories to manage your entities efficiently. The framework’s support for custom queries, pagination, sorting, and auditing further enhances its utility, making it a versatile tool for any Spring-based project.
With these basics, you're well-equipped to start leveraging Spring Data JPA in your projects. Experiment with different features and dive deeper into the documentation to explore more advanced capabilities. Happy coding! | nikhilxd |
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