Node.js Tutorials 💻

Welcome to the Node.js tutorial section! Node.js is a powerful runtime environment that allows you to build scalable network applications using JavaScript. Let's dive into the essentials.

What is Node.js? 🌐

Node.js is built on Chrome's V8 JavaScript engine, enabling server-side scripting. It's ideal for real-time applications like chat apps, APIs, and more.

Key Features

• Asynchronous and Non-blocking I/O: Handles multiple requests efficiently
• Event-driven Architecture: Reacts to events without waiting for responses
• Single Language Ecosystem: JavaScript on both frontend and backend
• NPM (Node Package Manager): Access to thousands of libraries

Getting Started 🚀

1. Install Node.js
   Download from nodejs.org and follow the installation guide.

   

2. Verify Installation
   Run these commands in your terminal:

   node -v
   npm -v
   

3. Create a Project
   Initialize a new project with:

   npm init -y
   

Basic Example: HTTP Server 📡

const http = require('http');

http.createServer((req, res) => {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello, Node.js!\n');
}).listen(3000, '127.0.0.1');

console.log('Server running at http://127.0.0.1:3000/');

Advanced Concepts 🔍

• Event Loop: The core of Node.js concurrency
• Modules: Use require() to import functionality
• Streams: Efficient data handling for large files
• Child Processes: Spawn external programs with child_process

Explore more in our Node.js Documentation or JavaScript Tutorials section!