From Node.js v0.10.31 Manual & Documentation I copied example, like:
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.end('Hello World\n');
}).listen(8124);
console.log('Server running at http://127.0.0.1:8124/');
If you save example like "example.js" and after starting server in command prompt with:
node example.js
in your browser go to the address:
http://localhost:8124/
and you should see "Hello World"