text: const express = require('express');
  const path = require('path');
  const app = express();
  
  app.use('/static', express.static(path.join(__dirname, 'public')));
  
  app.get('/', function (req, res) {
      res.sendFile('index.html', { root: '.' });
  });
  
  app.listen(3000, function () {
      const port = this.address().port;
      console.log('server listening at port %s', port);
  });
  