Node.js hello world.

helloWorld.js

// Node.js HelloWorld

// Add the HTTP module - https://nodejs.org/api/http.html
var http = require('http');

// Create a server
// It always expects to work with a request and response
var myServer = http.createServer(function(request, response)    {
    response.writeHead(200, {"Content-Type" : "text/plain"});
    response.end('Hello world');
});

myServer.listen(5000);