React Base Fiddle (JSX)

Starting point for creating JSFiddles with React. This uses React with Addons.

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.24/browser.js"></script>
<script src="https://npmcdn.com/react@latest/dist/react-with-addons.js"></script>
<script src="https://npmcdn.com/react-dom@latest/dist/react-dom.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration-babel.js"></script>

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

CSS

.current {
  width: 50px;
  margin-bottom: 10px;
}

JavaScript 1.7

class Select extends React.Component {
	constructor(props) {
  	super(props);
    this.state = { currentValue: this.props.defaultValue };
  }
  
	updateValue() {
  	this.setState({ currentValue: this.refs.myselect.value });
  }

	render () {
  	return (
      <div>
      	<div>
	      	<button className="current" onClick={this.updateValue.bind(this)}>{this.state.currentValue}</button>
        </div>
        
        <select ref="myselect" defaultValue={this.props.defaultValue}>
          <option value="a">A</option>
          <option value="b">B</option>
          <option value="c">C</option>
        </select>
      </div>
    );
  }
}


ReactDOM.render(
  <Select defaultValue="c" />,
  document.getElementById('container')
);