Welcome to the Node.js Basics Tutorial! If you're new to Node.js or looking to enhance your skills, this guide will help you get started. Below, you'll find a list of topics that will cover the fundamentals of Node.js.

Introduction to Node.js

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows you to run JavaScript outside of a browser, enabling you to build server-side applications. Node.js is single-threaded, but it uses non-blocking I/O operations to stay responsive.

Setting Up Your Environment

Before you start, make sure you have Node.js installed on your system. You can download and install it from the official Node.js website. Once installed, open your terminal or command prompt and type node -v to verify the installation.

Core Node.js Modules

Node.js comes with a set of core modules that you can use in your applications. Some of the most commonly used modules include:

  • http: To create HTTP servers and clients.
  • fs: To interact with the file system.
  • path: To handle file paths.

For more information on the core modules, you can refer to the Node.js documentation.

Building Your First Node.js Application

Let's build a simple HTTP server using the http module. Open your favorite text editor and create a file named server.js. Add the following code:

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello, World!\n');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});

Save the file and run it using the command node server.js. Open your web browser and navigate to http://127.0.0.1:3000/ to see the output.

Further Reading

If you want to dive deeper into Node.js, here are some resources to help you:

Happy coding! 🌟

Node.js