Return JavaScript code from the server

server.js

app.get('/js-code', (req, res) => {
  res.send(`
    console.log(
      'Hi there! A script <script src="js-code"></script> will run me'
    );
    function iCanDoAnything() {
      // i can add an element
      const body = document.getElementsByTagName('body')[0];
      const h1 = document.createElement('h1');
      h1.innerText = 'Daayum! I really can do anything.';
      body.appendChild(h1);
    }
    iCanDoAnything();
  `);
});