text: 'use strict';
  
  const express = require('express');
  
  // Constants
  const PORT = 3000;
  const HOST = '0.0.0.0';
  
  // App
  const app = express();
  app.get('/', (req, res) => {
    res.send('Hello Node.js Sample!\n');
  });
  
  var port = process.env.PORT||PORT;
  app.listen(port);
  console.log(`Running on http://${HOST}:${PORT}`);
  console.log("demo")
  