text: // Program: server.js
  // Purpose: NodeJS startup scripts
  // Author:  Ray Lai
  // Updated: Sep 7, 2016
  // License: MIT license
  //
  var express = require('express');
  
  var server = express();
  server.use(express.static(__dirname + '/'));
  
  var port = 3000 || process.env.PORT;
  server.get('/', function (req, res) {
     res.send('Welcome to Express Web Server!\n');
  });
  server.listen(port, function() {
     console.log('Express Web server listening on port ' + port);
  });
  
  