react hello world with time and date updating

HTML

<div id="root"></div>

Scripts

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/18.0.0-alpha-5fa4d79b0-20211008/umd/react.production.min.js" integrity="sha512-5PVmWGoNJocWPdQJmJd1aRbz3cFcFgXctWKLWcitqtgX64jF+ttfg9g2oLltmeQ1HUo3gT6QchaMK3h+S+JG4Q==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.0.0-alpha-5fa4d79b0-20211008/umd/react-dom.production.min.js" integrity="sha512-pUsjUv+9XgkTn+UbLyNIT4YNZPF2p0E45FBKmDL7Ti8iovYwp2CUkQs6Q7J9y5scLxWaOM+T5jJc0ls+WHUcmQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Javascript

/*
JSX Version 
function tick() {
  const element = (
    <div>
      <h1>Hello, world!</h1>
      <h2>It is {new Date().toLocaleTimeString()}.</h2>
    </div>
  );
  // highlight-next-line
  ReactDOM.render(element, document.getElementById('root'));
}

setInterval(tick, 1000);
*/

/* Compiled Version */
function tick() {
  const element = /*#__PURE__*/
  React.createElement("div", null, /*#__PURE__*/
  React.createElement("h1", null, "Hello, world!"), /*#__PURE__*/
  React.createElement("h2", null, "It is ", new Date().toLocaleTimeString(), "."));


  // highlight-next-line
  ReactDOM.render(element, document.getElementById('root'));
}

setInterval(tick, 1000);