Node.js for Beginners Part 2: Build Powerful Backend Apps with JavaScript – Complete Guide for 2025 2025-05-20

Node.js For Beginners Part 2: Build Powerful Backend Apps with JavaScript – Complete Guide for 2025 In Part 1 of this Node.js tutorial series, you learned what Node.js is and how to set up your development environment. Now, in Part 2, we’ll dive deeper and build practical backend components that power real-world web applications. Whether you're preparing for a backend developer role or leveling up your JavaScript skills, this guide will help you understand Node.js beyond the basics. 🔹 What You'll Learn in This Part Core modules in Node.js Creating a simple HTTP server Handling requests and responses Working with the File System (fs module) JSON data and routing basics 🔹 1. Understanding Node.js Core Modules Node.js has several built-in modules that simplify server-side development. One of the most commonly used is the http module, which allows you to create a basic web server without any external libraries. Example: javascript Copy Edit const http = require('http'); const server = http.createServer((req, res) => { res.write('Welcome to Node.js Part 2!') ; res.end(); });