How to initialize a simple node server with express.

server.js

/* First all you need too install express as a dependency
 * $ npm i express --save
 * For more information about express visit http://expressjs.com/
 */

var express = require('express');
var app = express();

// __dirname + '/' refers to the folder you have created index.html
app.use('/', express.static(__dirname + '/'));

// Define the port your server is listening
app.listen('3000', function(){
  console.log('Server running in http://localhost:3000');
});