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>

JavaScript 1.7

var Child1 = React.createClass({
  render: function() {
    return <div>
    	Child 1
      {React.cloneElement(this.props.children, this.props)}
    </div>;
  }
});

var Main = React.createClass({
  render: function() {
    return <div>Main{React.cloneElement(this.props.children, this.props)}</div>;
  }
});

var Child2 = React.createClass({
  render: function() {
    return <div>{React.cloneElement(this.props.children, this.props)}</div>;
  }
});


ReactDOM.render(
  <Main><Child1><Child2></Child2></Child1></Main>,
  document.getElementById('container')
);