SQL: How to Select Top N Records

/src
  /locales
    en.json
    fr.json
  /pages
    Home.js
    About.js
  i18n.js
  App.js
  routes.js

Create i18n.js:

Use IP detection (via backend or service like IPinfo):

if (userCountry === 'EG') {
  showEGPPrices();
} else {
  showUSDPrices();
}

{
  "welcome": "Bienvenue sur notre plateforme !",
  "language": "Langue",
  "date_example": "La date d'aujourd'hui est {{date, datetime}}",
  "price_example": "Prix : {{price, currency}}"
}

Edit src/index.js:

• Use SSR (Server-Side Rendering) for public pages
• Add <meta> tags and Open Graph data dynamically
• Ensure Lighthouse scores are optimized (especially for CLS, LCP)
• Avoid client-only routing for key landing pages

In 2025, micro-frontends are not just a buzzword — they are a proven way to scale modern frontend architectures. With Webpack Module Federation, teams can deliver independently developed features without sacrificing user experience or performance.

   import create from 'zustand';

   const useStore = create((set) => ({
     count: 0,
     increase: () => set((state) => ({ count: state.count + 1 })),
     decrease: () => set((state) => ({ count: state.count - 1 })),
   }));

   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;

Implementing these practices ensures that only components dependent on specific context values re-render when those values change.([Medium][7])

React Developer Tools provides a Profiler tab to analyze component rendering behavior. Use it to identify components that re-render frequently and assess the impact of optimization strategies.([tenxdeveloper.com][8])

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Comparison operators compare two values and return a boolean (true or false).

console.log(5 == "5"); // true (type coercion)
console.log(5 === "5"); // false (no type coercion)
console.log(10 > 7); // true
console.log(4 <= 4); // true

  console.log(5 + "5"); // "55"
  console.log(5 - "2"); // 3 (string "2" is coerced to number)

• Attempts to convert the operand to a number.
• Example:

• Accessing Elements:

  console.log(fruits[0]); // "apple"

Symbols are unique identifiers.

  let id = Symbol("id");
  console.log(id); // Symbol(id)

• Use let for variables whose value may change.
• Example:

     let score = 10;
     score += 5; // score is now 15

Comments are notes in the code that are ignored by the JavaScript engine. They are useful for explaining what the code does or for temporarily disabling parts of the code.

• Begin with //.
• Example:

• Use the clear() function or click the "Clear Console" button.

• Arrow keys: Navigate through previous commands.
• Shift+Enter: Write multi-line code.

• Open the Extensions view (Ctrl+Shift+X or Cmd+Shift+X on macOS).
• Recommended extensions for JavaScript:
• ESLint: Linting and error-checking.
• Prettier: Code formatting.
• JavaScript (ES6) Code Snippets: Useful code snippets.
• Live Server: Preview your code in the browser.

• Customize the editor's look by choosing a theme:
• Navigate to File > Preferences > Color Theme.
• Popular themes: Dark+, Dracula, Monokai.

JavaScript is the engine behind the dynamic behavior of modern websites. It works alongside HTML (structure) and CSS (style) to create a complete web experience.

• JavaScript enables features like dropdown menus, modal windows, sliders, and real-time updates.
• Examples: Search suggestions, form validations, chat applications.

No preview available for this content.

setInterval(() => {
  // Posting logic
}, 300000); // Adjust this value as needed

You can reduce or increase the frequency by changing this value.

• Step-by-step guide to optimize large applications.
• Real-world examples of dynamically adding reducers.

• How selectors work and why memoization is important.
• Advanced use cases for normalized data.