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">
    <!-- This element's contents will be replaced with your component. -->
</div>

Babel + JSX

const withDoubled = Comp => props => (
  <Comp {...props} value={props.value * 2}  />
);

const SomeInput = ({ onChange, value, disabled }) => (
  <input value={value} disabled={disabled} onChange={e => onChange(e.target.value)}/>
);

const Doubled = withDoubled(SomeInput);

const MyCal = () => {
  const [val, setVal] = React.useState(0);

  return (
    <React.Fragment>
    <SomeInput value={val} onChange={setVal} />
    <Doubled value={val} disabled />
    </React.Fragment>
  );
}

ReactDOM.render(
  <MyCal />,
  document.getElementById('container')
);