React Base Fiddle (JSX)

Starting point for creating JSFiddles with React.

HTML

<script src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<div id="container">
</div>

Babel + JSX

const name = undefined;
const myFunc = () => undefined;
let template = (
  <div>
    {myFunc()}
    {name}
    {undefined}
    Hello world
  </div>
);

ReactDOM.render(template, document.getElementById("container"));