old_contents: var http = require("http");
  
  var server = http.createServer(function(request, response) {
    response.writeHead(200, {"Content-Type": "text/html"});
    response.write("<!DOCTYPE \"html\">");
    response.write("<html>");
    response.write("<head>");
    response.write("<title>Hello World Page</title>");
    response.write("</head>");
    response.write("<body>");
    response.write("Hello World! 5000");
    response.write("</body>");
    response.write("</html>");
    response.end();
  });
   
  server.listen(8080);
  console.log("Server is listening");
new_contents: var express = require('express'),
      app = express(),
      request_lib = require('request'),
      cheerio = require('cheerio');
  app.set('port', (process.env.PORT || 5000));
  // var server = http.createServer(function(request, response) {
  //   response.writeHead(200, {"Content-Type": "text/html"});
  //   response.write("<!DOCTYPE \"html\">");
  //   response.write("<html>");
  //   response.write("<head>");
  //   response.write("<title>Hello World Page</title>");
  //   response.write("</head>");
  //   response.write("<body>");
  //   response.write("Hello World! 5000");
  //   response.write("</body>");
  //   response.write("</html>");
  //   response.end();
  // });
  // var sendComments = function(response) {
  //   response.writeHead(200, {"Content-Type": "text/html"});
  //   response.write("<!DOCTYPE \"html\">");
  //   response.write("<html>");
  //   response.write("<head>");
  //   response.write("<title>Hello World Page</title>");
  //   response.write("</head>");
  //   response.write("<body>");
  //   response.write("Hello World! 5000");
  //   response.write("</body>");
  //   response.write("</html>");
  //   response.end();
  // });
  
  app.get('/', function(request, response) {
    response.writeHead(200, {"Content-Type": "text/html"});
    response.write("<!DOCTYPE \"html\">");
    response.write("<html>");
    response.write("<head>");
    response.write("<title>Hello World Page</title>");
    response.write("</head>");
    response.write("<body>");
    response.write("Hello World! 5000");
    response.write("</body>");
    response.write("</html>");
    response.end();
  });
  
  app.listen(app.get('port'), function() {
      console.log("Node app is running at localhost:" + app.get('port'));
  });
subject: update 3