text: /**
   * Simple Express application which response 'Hello World!' to requests on '/'
   */
  var express = require('express');
  var app = express();
  
  app.get('/', function (req, res) {
    res.send('Hello World!');
  });
  
  app.listen(3000, function () {
    console.log('Example app listening on port 3000!');
  });
  