In this article, we describe the example of hello world in node.js.If you want to learn how to install and setup node.js first, then you can read my previous article using below link:

http://www.mindstick.com/Articles/6936b641-b351-481c-900c-7741a5b42fd7/Install%20and%20Setup%20Node%20js

We open the command prompt with administrator and change the location where you want to keep your js file as like this:

C:\node;

Let we go to create a simple program for Hello world in node.js. Here, where we want to store our file we create a test.js file and select through command prompt but here we select c:\node folder and code into test.js file:

var http = require('http');
http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Hello World\n');
}).listen(1337, "127.0.0.1");
console.log('Server running at http://127.0.0.1:1337/'); 

To run this program command prompt type the node filename.js

And run on the browser:

The output of the test.js file by node.js. I hope that this article is helpful for you.