💡 What is Node.js?

Node.js lets you execute JavaScript on the server, handle HTTP requests, and serve files—all with code you already know.

📄 Example: Simple HTTP Server

const http = require('http');

const server = http.createServer((req, res) => {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello, TheCodingJourney!');
});

server.listen(8080, () => {
  console.log('Server running at http://localhost:8080/');
});

🤔 Why Use Node.js?

• ✅ Full‑stack JS: one language everywhere
• ✅ Asynchronous I/O: handles many requests efficiently
• ✅ Rich Modules: leverage thousands of npm packages
• ✅ Real‑time Apps: perfect for chats, notifications, games