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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
If your SSH session closes after a minute of inactivity, it’s usually caused by idle timeouts. You can fix this with keep-alive settings on both the server and client.
Edit the SSH daemon config:
How to Translate URLs in React (2025 Guide)
Sample fr.json:
{
"routes": {
"home": "accueil",
"about": "a-propos"
},
"title": "Bienvenue sur notre site !"
}Globalization in React (2025 Trends & Best Practices)
Make this dynamic in React:
const formatCurrency = (value, lng) => {
const currency = lng === 'ar' ? 'EGP' : 'USD';
return new Intl.NumberFormat(lng, {
style: 'currency',
currency
}).format(value);
};Implementing Internationalization (i18n) in a Large React Application (2025 Guide)
As businesses go global, your frontend must cater to users from different regions, languages, and cultures. A well-implemented internationalization (i18n) strategy in your React app ensures:
- Seamless language switching
- Proper formatting of dates, numbers, and currencies
- Better accessibility and user retention
- Improved SEO in multilingual search queries
Building Micro-Frontends with Webpack Module Federation (2025 Guide)
Visit http://localhost:8080 — you’ll see the React dashboard with the Vue analytics module seamlessly loaded via Module Federation.
Here are some crucial tips to future-proof your micro-frontend architecture in 2025:
State Management Beyond Redux: Using Zustand for Scalable React Apps
import create from 'zustand';
import { persist } from 'zustand/middleware';
const useStore = create(persist(
(set) => ({
count: 0,
increase: () => set((state) => ({ count: state.count + 1 })),
}),
{
name: 'counter-storage',
}
));Zustand allows you to select specific parts of the state to prevent unnecessary re-renders:
Mastering React Rendering Performance with Memoization and Context
By wrapping increment and decrement with useCallback, their references remain stable across renders, preventing unnecessary re-renders in child components that receive these functions as props.([GeeksforGeeks][2])
For components that perform heavy computations, useMemo can cache the result of a calculation, recomputing it only when its dependencies change.([Content That Scales][5])
How to Disable MySQL Password Validation on Ubuntu 25.04
Then you'll need to restart MySQL:
sudo systemctl restart mysqlHow to Move the MySQL Data Directory to a New Location on Ubuntu 25.04
Save and exit.
AppArmor may block MySQL from accessing the new path.
How to Install PHP, MySQL, and phpMyAdmin on Ubuntu 25.04 (LAMP Stack Setup Guide)
php -vInstall the MySQL server package:
How to Fix NVIDIA Driver Issues on Ubuntu (Dell Vostro 3521)
You’ll see a list like:
driver : nvidia-driver-550 - distro non-free recommended
...
driver : xserver-xorg-video-nouveau - distro free builtinAvoiding 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
ScopedPointerclass to emulateunique_ptrin old C++.
Consider this code:
Deep Copy in C++: How to Avoid Shallow Copy Pitfalls
You must implement all three. This is called the Rule of Three.
class String {
private:
char* buffer;
public:
String(const char* str) {
buffer = new char[strlen(str) + 1];
strcpy(buffer, str);
}
// Copy constructor
String(const String& other) {
buffer = new char[strlen(other.buffer) + 1];
strcpy(buffer, other.buffer);
}
// Assignment operator
String& operator=(const String& other) {
if (this != &other) {
delete[] buffer;
buffer = new char[strlen(other.buffer) + 1];
strcpy(buffer, other.buffer);
}
return *this;
}
~String() {
delete[] buffer;
}
void print() const {
std::cout << buffer << std::endl;
}
};Protect Your Forms Like a Pro: Anti-Spam Techniques That Actually Work
Check for suspicious content:
- Links (
http,.ru,.xyz) - Duplicate messages
- Nonsense or gibberish
Build a Custom Rate Limiter in Node.js with Redis
You can now:
- Offer different limits for free vs paid users
- Log or monitor usage per user
Arduino Basics: A Step-by-Step Tutorial
Key features include:
- Open-source hardware and software
- User-friendly programming environment
- A large community with plenty of tutorials and libraries
Building a Real-Time Object Detection Web App with TensorFlow.js and p5.js
Now that you have a basic real-time object detection app, consider extending its functionality:
- Filtering Detections: Display only specific classes (e.g., only people or vehicles).
- Custom UI Elements: Use p5.js to add buttons or controls that modify detection settings in real time.
- Performance Optimization: Experiment with frame rate adjustments or model parameters for faster detection.
Building a Cross-Platform Desktop App with Tauri and Svelte: A Step-by-Step Tutorial
This command opens your Svelte app inside a native window powered by Tauri. Changes you make to your Svelte code will update in real time.
Once you’re ready to distribute your app, build it using:
Implementing a Domain-Specific Language (DSL) with LLVM and C++
Later, you can extend it to include variables, functions, or even control flow constructs.
Example DSL Code: