text: var http = require('http');
   
    //step 2) start the server
    http.createServer(function (req, res) {
   
    //set an HTTP header of 200 and the meta type
    res.writeHead(200, {'Content-Type': 'text/plain'});
   
    //write something to the request and end it
    res.end('Your node.js server is running on localhost:3000');
   
  }).listen(3000);//step 3) listen for a request on port 3000
  
  