node.js : handling url parameters

server.js

// Include http module, 
var http = require("http"), 
// And url module, which is very helpful in parsing request parameters. 
   url = require("url"); 
 
// Create the server. 
http.createServer(function (request, response) { 
   // Attach listener on end event. 
   request.on('end', function () { 
      // Parse the request for arguments and store them in _get variable. 
      // This function parses the url from request and returns object representation. 
      var _get = url.parse(request.url, true).query; 
      // Write headers to the response. 
      response.writeHead(200, { 
         'Content-Type': 'text/plain'
      }); 
      // Send data and end response. 
      response.end('Here is your data: ' + _get['data']); 
   }); 
// Listen on the 8080 port. 
}).listen(8080);