Posted in react
215
4:12 am, October 11, 2021

react hello world with time and date updating

here is a react hello world with the date and time updating on setInterval 1000 miliseconds. 

Again with react it has to be compiled from JSX for it to work, so i have included the original and the compiled version here. Babel to Pure

This shows the compiled version if you want to see the JSX version i have a working one here with babel.

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);

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