Node.js Hello World with Express.js

gistfile1.js

/**
 * Module Dependencies
 */
var express = require('express');

var app = express();

/**
 * Configuration
 */

/**
 * Routes
 */
app.get('/', function(req, res) {
    res.send('Hello World!\n');
});

/**
 * Start Server
 */
app.listen(3000);
console.log('Express listening on port 3000...');