Node.js: How to Create an HTTP Server

Globalization in React (2025 Trends & Best Practices)

Use react-i18next to add multilingual support:

npm install i18next react-i18next i18next-browser-languagedetector

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

With i18next and react-i18next, you can:

Translate your app without performance loss
Format dates, numbers, currencies natively
Scale your translations across large React apps

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

Install dependencies for Webpack configuration:

npm install -D webpack webpack-cli webpack-dev-server html-webpack-plugin

State Management Beyond Redux: Using Zustand for Scalable React Apps

Getting started with Zustand is straightforward. Here's how you can integrate it into your React application:

   npm install zustand

May 03, 2025 Tutorial

Mastering React Rendering Performance with Memoization and Context

import React from 'react';

const Greeting = React.memo(function Greeting({ name }) {
  console.log("Greeting rendered");
  return <h3>Hello{name && ', '}{name}!</h3>;
});

In this example, Greeting will only re-render when the name prop changes. This optimization is particularly beneficial for components that render frequently with the same props.([React][4], [Content That Scales][5])

May 03, 2025 Tutorial

How to Create a New MySQL User with Full Privileges

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May 01, 2025 Code

Comparison and Logical Operators

The user must be logged in (isLoggedIn is true).
The user's account must not be suspended (isSuspended is false).

let number = 12;
if (number > 10 && number % 2 === 0) {
  console.log("The number is greater than 10 and even.");
}

let isLoggedIn = true;
let isSuspended = false;

if (isLoggedIn && !isSuspended) {
  console.log("User can log in.");
} else {
  console.log("Access denied.");
}

Arithmetic Operators

  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:

Non-Primitive Data Types (Objects, Arrays, and Functions)

In JavaScript, non-primitive data types, such as objects, arrays, and functions, allow for more complex data structures and behaviors. Unlike primitives, non-primitive types are mutable and can hold multiple values or properties.

Objects are key-value pairs that can represent more complex data.

Primitive Data Types

Syntax: Strings can be enclosed in single ('), double ("), or backticks (` ``).
Examples:

  let name = "Alice";
  let greeting = 'Hello';
  let message = `Welcome, ${name}!`; // Template literal
  console.log(message); // "Welcome, Alice!"

Variables and Constants

let greeting;
console.log(greeting); // undefined

Use let for variables whose value may change.
Example:

Hello World and Comments

     console.log(Hello, World!);

Correct:

Using Node.js to Run JavaScript

Open the terminal and type node to enter the Node.js interactive mode.
Type JavaScript directly:

     > console.log("Hello, Node.js!");
     Hello, Node.js!

Running JavaScript in the Browser Console

Use the console like a calculator:

     5 + 10 * 2;

Installing a Code Editor (e.g., VS Code)

     node test.js

Sublime Text: Lightweight and fast.
Atom: Customizable and open-source.
WebStorm: Paid but feature-rich, ideal for large projects.

JavaScript in Modern Web Development

Frameworks and libraries like React, Angular, and Vue.js make it easier to build Single Page Applications (SPAs).
Examples: Gmail, Netflix, Trello.

With Node.js, JavaScript powers the back-end to handle databases, APIs, and server logic.
Examples: REST APIs, real-time collaboration tools like Google Docs.

History and Evolution

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How to Create a Chrome Extension for Automating Tweets on X (Twitter)

{
  "manifest_version": 3,
  "name": "X.com Tweet Automation",
  "version": "1.0",
  "description": "Automate tweets on X.com.",
  "permissions": ["activeTab", "scripting"],
  "host_permissions": ["https://x.com/*"],
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": ["https://x.com/*"],
      "js": ["content.js"]
    }
  ]
}

manifest_version: Specifies the version of the manifest. Chrome requires version 3 for newer extensions.
permissions: Grants the extension access to scripting and the active tab.
host_permissions: Restricts the extension to only work on X.com.