text: const express = require('express');
  const app = express();
  
  
  
  const port = 80;
  
  app.get('/', (req, res) => {
      res.send("Hello World")
  });
  app.get('/:val', (req, res) => {
      let html = "<html><head><title>Home!</title></head><body>";
      html += `Bye ${req.params.val}`;
      html += "</body></html>";
      res.send(html);
  });
  
  app.listen(port, () => { console.log(`Listening on port ${port}`) });