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 Hello = React.createClass({
  render: function() {
    return <div>
    	<p>
    		Hello <span>{this.props.name}</span>
      </p>
    </div>;
  }
});

var HighlightXpath = React.createClass({
	componentDidMount() {
     let el = document.evaluate(this.props.xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
     el.singleNodeValue.style.background = 'pink';
  },
  render: function() {
    return this.props.children;
  }
});

ReactDOM.render(
  <HighlightXpath xpath="html//body//div/p/span">
  	<Hello name="World" />
  </HighlightXpath>,
  document.getElementById('container')
);