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Tutorial

ما هو حقن التبعيات (Dependency Injection)؟

$this->app->bind(UserRepository::class, EloquentUserRepository::class);

وبمجرد التسجيل، يقوم Laravel تلقائياً بحقن التبعية عند الحاجة.

Dec 01, 2025
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Tutorial

How to Stop SSH From Timing Out

sudo systemctl restart sshd

On your local machine, edit or create:

Aug 21, 2025
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Tutorial

How to Translate URLs in React (2025 Guide)

  • Translate URLs/slugs (e.g., /about-us/fr/a-propos)
  • Maintain SEO with hreflang for each language
  • Improve UX by aligning URLs with user language
  • Ensure route accessibility via browser language or manual switching
  • How to structure language-specific routes
  • How to integrate URL translation with react-router-dom
  • How to switch routes with language changes
  • Bonus: how to integrate with react-i18next

May 04, 2025
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Tutorial

Globalization in React (2025 Trends & Best Practices)

  • Avoid idioms/slang in content

They don’t always translate well.

May 04, 2025
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Tutorial

Implementing Internationalization (i18n) in a Large React Application (2025 Guide)

In large apps, structure your translation files modularly:

/locales
  /en
    home.json
    dashboard.json
  /fr
    home.json
    dashboard.json

May 04, 2025
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Tutorial

Building Micro-Frontends with Webpack Module Federation (2025 Guide)

Use a design system or tokens for consistent UI/UX across micro-apps.

Use a centralized approach for auth tokens and route management — or pass them via shared context if needed.

May 04, 2025
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Tutorial

State Management Beyond Redux: Using Zustand for Scalable React Apps

  • Project Size: For small to medium-sized projects, Zustand's simplicity can accelerate development.
  • Team Experience: Teams new to state management may find Zustand's learning curve more approachable.
  • Boilerplate Reduction: If minimizing boilerplate is a priority, Zustand offers a cleaner setup.
  • Performance Needs: Zustand's selective rendering can enhance performance in applications with frequent state updates.

However, for large-scale applications requiring complex state interactions, middleware, and extensive tooling, Redux might still be the preferred choice.

May 03, 2025
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Tutorial

Mastering React Rendering Performance with Memoization and Context

Best Practices:

   const ThemeContext = React.createContext();
   const UserContext = React.createContext();

May 03, 2025
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Tutorial

How to Disable MySQL Password Validation on Ubuntu 25.04

If you want to bring back strong password policies:

INSTALL COMPONENT 'file://component_validate_password';

May 01, 2025
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Tutorial

How to Move the MySQL Data Directory to a New Location on Ubuntu 25.04

You should see:

+---------------+------------------+
| Variable_name | Value            |
+---------------+------------------+
| datadir       | /mnt/data/mysql/ |
+---------------+------------------+

May 01, 2025
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Tutorial

How to Install PHP, MySQL, and phpMyAdmin on Ubuntu 25.04 (LAMP Stack Setup Guide)

Install phpMyAdmin along with necessary PHP extensions:

sudo apt install phpmyadmin php-mbstring php-zip php-gd php-json php-curl

May 01, 2025
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Tutorial

How to Fix NVIDIA Driver Issues on Ubuntu (Dell Vostro 3521)

Then update:

sudo apt update

Apr 14, 2025
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Tutorial

Avoiding Memory Leaks in C++ Without Smart Pointers

  • How memory leaks happen.
  • How to structure your code to avoid them.
  • A design pattern to manage dynamic memory safely (RAII without smart pointers).
  • A reusable ScopedPointer class to emulate unique_ptr in old C++.

Consider this code:

Apr 11, 2025
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Tutorial

Deep Copy in C++: How to Avoid Shallow Copy Pitfalls

A shallow copy copies the values of member variables as-is. If your class has a pointer member, both the original and copy point to the same memory.

class Shallow {
public:
    int* data;

    Shallow(int val) {
        data = new int(val);
    }

    ~Shallow() {
        delete data;
    }
};

Apr 11, 2025
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Tutorial

Protect Your Forms Like a Pro: Anti-Spam Techniques That Actually Work

Before we dive in, it's important to know: most spammers use scripts, not humans. These bots scan for forms, autofill fields, and send POST requests rapidly—sometimes thousands per hour.

So your goal isn’t to annoy humans, it’s to trip up bots.

Apr 04, 2025
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Tutorial

Build a Custom Rate Limiter in Node.js with Redis

  • Implement sliding windows
  • Use Redis tokens (token bucket)
  • Add real-time dashboards or admin controls

If you're building any kind of real API, this knowledge will serve you well.

Apr 04, 2025
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Tutorial

Arduino Basics: A Step-by-Step Tutorial

  • Sensors and Actuators: Learn how to interface with various sensors (e.g., temperature, distance) and control motors or servos.
  • Serial Communication: Understand how to send and receive data between the Arduino and your computer.
  • Advanced Projects: Dive into projects that combine multiple components for more interactive applications.

Feb 12, 2025
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Tutorial
javascript

Building a Real-Time Object Detection Web App with TensorFlow.js and p5.js

Create a new file called sketch.js in your project folder. We’ll use p5.js to access the webcam and display the video on a canvas:

let video;
let detector;
let detections = [];

function setup() {
  // Create the canvas to match the video dimensions
  createCanvas(640, 480);
  // Capture video from the webcam
  video = createCapture(VIDEO);
  video.size(640, 480);
  video.hide();

  // Load the pre-trained COCO-SSD model
  cocoSsd.load().then(model => {
    detector = model;
    console.log("Model Loaded!");
    // Begin detecting objects every frame
    detectObjects();
  });
}

function detectObjects() {
  detector.detect(video.elt).then(results => {
    detections = results;
    // Continue detection in a loop
    detectObjects();
  });
}

function draw() {
  // Draw the video
  image(video, 0, 0);

  // Draw detection boxes and labels if available
  if (detections) {
    for (let i = 0; i < detections.length; i++) {
      let object = detections[i];
      stroke(0, 255, 0);
      strokeWeight(2);
      noFill();
      rect(object.bbox[0], object.bbox[1], object.bbox[2], object.bbox[3]);
      noStroke();
      fill(0, 255, 0);
      textSize(16);
      text(object.class, object.bbox[0] + 4, object.bbox[1] + 16);
    }
  }
}

Feb 12, 2025
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Tutorial

Building a Cross-Platform Desktop App with Tauri and Svelte: A Step-by-Step Tutorial

npx degit sveltejs/template tauri-svelte-app
cd tauri-svelte-app
npm install

This command creates a fresh Svelte application in the tauri-svelte-app directory and installs all required dependencies.

Feb 12, 2025
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Tutorial

Implementing a Domain-Specific Language (DSL) with LLVM and C++

#ifndef DSL_LEXER_H
#define DSL_LEXER_H

#include <string>
#include <vector>

enum class TokenType {
    Number,
    Plus,
    Minus,
    Asterisk,
    Slash,
    LParen,
    RParen,
    EndOfFile,
    Invalid
};

struct Token {
    TokenType type;
    std::string text;
    double value; // Only valid for Number tokens.
};

class Lexer {
public:
    Lexer(const std::string& input);
    Token getNextToken();

private:
    const std::string input;
    size_t pos = 0;
    char currentChar();

    void advance();
    void skipWhitespace();
    Token number();
};

#endif // DSL_LEXER_H

Implementation: Lexer.cpp

Feb 12, 2025
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