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ما هو حقن التبعيات (Dependency Injection)؟
وهي الطريقة الأكثر شيوعاً، حيث تُمرَّر التبعيات للكائن عبر المُنشئ.
مثال بسيط بلغة PHP:
How to Stop SSH From Timing Out
Restart SSH:
sudo systemctl restart sshdHow to Translate URLs in React (2025 Guide)
Add <html lang="en"> and <link rel="alternate" hreflang="fr"> tags
Translate meta tags using react-helmet or next/head
Globalization in React (2025 Trends & Best Practices)
In 2025, users expect more than just language translation — they want your app to feel native to their region, culture, and behavior.
By implementing full globalization in your React application, you gain:
Implementing Internationalization (i18n) in a Large React Application (2025 Guide)
import i18n from 'i18next';
import { initReactI18next } from 'react-i18next';
import LanguageDetector from 'i18next-browser-languagedetector';
// Import translation files
import en from './locales/en.json';
import fr from './locales/fr.json';
i18n
.use(LanguageDetector) // Detects user language
.use(initReactI18next)
.init({
resources: {
en: { translation: en },
fr: { translation: fr },
},
fallbackLng: 'en',
interpolation: {
escapeValue: false, // React already escapes
},
detection: {
order: ['localStorage', 'navigator', 'htmlTag'],
caches: ['localStorage'],
},
});
export default i18n;Create folder structure:
Building Micro-Frontends with Webpack Module Federation (2025 Guide)
/app-shell (React)
webpack.config.js
src/
bootstrap.js
/analytics-app (Vue)
webpack.config.js
src/
main.jsInstall Vue + Webpack in the analytics-app:
State Management Beyond Redux: Using Zustand for Scalable React Apps
import React from 'react';
import useStore from './store';
function Counter() {
const { count, increase, decrease } = useStore();
return (
<div>
<h1>{count}</h1>
<button onClick={increase}>Increase</button>
<button onClick={decrease}>Decrease</button>
</div>
);
}
export default Counter;With these steps, you've set up a basic state management system using Zustand without the need for additional boilerplate or context providers.
Mastering React Rendering Performance with Memoization and Context
import React, { useState, useMemo } from 'react';
function ExpensiveComponent({ data }) {
const processedData = useMemo(() => {
// Expensive computation
return data.map(item => /* processing */ item);
}, [data]);
return <div>{/* render processedData */}</div>;
}This approach ensures that the expensive computation runs only when data changes, improving performance.
How to Disable MySQL Password Validation on Ubuntu 25.04
SHOW VARIABLES LIKE 'validate_password%';If disabled, this will return an empty result set.
How to Move the MySQL Data Directory to a New Location on Ubuntu 25.04
sudo systemctl start mysqlCheck that MySQL is using the new path:
How to Install PHP, MySQL, and phpMyAdmin on Ubuntu 25.04 (LAMP Stack Setup Guide)
export PATH="$HOME/.config/composer/vendor/bin:$PATH"Then reload your shell configuration:
How to Fix NVIDIA Driver Issues on Ubuntu (Dell Vostro 3521)
sudo apt install mesa-utils
glxinfo | grep "OpenGL renderer"You’ll likely see:
Avoiding Memory Leaks in C++ Without Smart Pointers
Let’s build a small ScopedPointer class.
template <typename T>
class ScopedPointer {
private:
T* ptr;
public:
explicit ScopedPointer(T* p = nullptr) : ptr(p) {}
~ScopedPointer() {
delete ptr;
}
T& operator*() const { return *ptr; }
T* operator->() const { return ptr; }
T* get() const { return ptr; }
void reset(T* p = nullptr) {
if (ptr != p) {
delete ptr;
ptr = p;
}
}
// Prevent copy
ScopedPointer(const ScopedPointer&) = delete;
ScopedPointer& operator=(const ScopedPointer&) = delete;
};Deep Copy in C++: How to Avoid Shallow Copy Pitfalls
This is the Rule of Five. Add move semantics if your class is performance-sensitive and uses resource ownership.
When your class uses raw pointers:
Protect Your Forms Like a Pro: Anti-Spam Techniques That Actually Work
Use regex or simple logic:
if (preg_match('/http|\.ru|\.xyz/i', $message)) {
die("Spam detected");
}Build a Custom Rate Limiter in Node.js with Redis
If you're building any kind of real API, this knowledge will serve you well.
Have questions or want a follow-up tutorial? Leave a comment or reach out—we’d love to help.
Arduino Basics: A Step-by-Step Tutorial
Table 3: Key pin configurations on the Arduino Uno.
Now that you’ve built your first Arduino project, consider exploring these topics:
Building a Real-Time Object Detection Web App with TensorFlow.js and p5.js
This HTML file loads p5.js, TensorFlow.js, and the COCO-SSD model library. We also reference our custom script file (sketch.js), which will contain our application logic.
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:
Building a Cross-Platform Desktop App with Tauri and Svelte: A Step-by-Step Tutorial
We’ll start by creating a new Svelte project. You can use a template via degit:
npx degit sveltejs/template tauri-svelte-app
cd tauri-svelte-app
npm installImplementing a Domain-Specific Language (DSL) with LLVM and C++
To compile the IR to machine code, consider using LLVM’s JIT (via LLVM’s ORC JIT APIs) or emitting an object file that can be linked into a larger application.
Main Entry Point: main.cpp