React Base Fiddle (JSX)

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

by koba04

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.24/browser.js"></script>
<script src="https://fb.me/react-with-addons-15.0.1.js"></script>
<script src="https://fb.me/react-dom-15.0.1.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>

JavaScript 1.7

let renderCount = 0;
let el
class Foo extends React.Component {
	constructor(props) {
		super(props);
    this.state = {
    	count: 0,
    };
    this.onClick = this.onClick.bind(this);
  }
  onClick() {
    this.setState({ count: this.state.count + 1 });
    this.setState({ count: this.state.count + 1 });
  }
  render() {
    ++renderCount;
    return (
      <a ref={c => el = c} onClick={this.onClick}>{this.state.count}</a>
	  );
  }
}

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

React.addons.TestUtils.Simulate.click(el);

console.assert(el.textContent === '1');
console.assert(renderCount === 2);