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Node.js Tutorial

Node.js is an open source server environment.

Node.js allows you to run JavaScript on the server.

Start learning Node.js now »

Learning by Examples

Our "Show Node.js" tool makes it easy to learn Node.js, it shows both the code and the result.

Example

var http = require('http');

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World!');
}).listen(8080);
Run example »

Click on the "Run example" button to see how it works.


Examples Running in the Command Line Interface

In this tutorial there will be some examples that are better explained by displaying the result in the command line interface.

When this happens, The "Show Node.js" tool will show the result in a black screen on the right:

Example

console.log('This example is different!');
console.log('The result is displayed in the Command Line Interface');
Run example »

Click on the "Run example" button to see how it works.


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Node.js Reference

Node.js has a set of built-in modules.

Built-in Modules


Download Node.js

Download Node.js from the official Node.js web site: https://nodejs.org