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

class Test extends React.Component {
  constructor (props) {
    super(props);
    
    this.state = {
      events: ''
    }
    this.inputRef = React.createRef();
    this.handleEvent = this.handleEvent.bind(this);
  }
  
  handleEvent(evt) {
    const value = this.inputRef.current.value;
    this.setState({
      events: this.state.events + `${evt.type}-${value}\n`
    });
  }

  render() {
    return (
    	<div>
        <input type="text" ref={this.inputRef}
          onChange={this.handleEvent}
          onCompositionEnd={this.handleEvent} />
        <pre>{this.state.events}</pre>
      </div>
    );
  }
}

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