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/react/0.13.1/JSXTransformer.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/0.13.1/react-with-addons.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration.js"></script>

<div id="container" />

CSS

[data-icon]:before {
    content: attr(data-icon);
}

JavaScript 1.7

var Icon = React.createClass(
{
    render: function()
    {
        //var amp = '\u0026',
        var amp = String.fromCharCode( 38 ),
            code = amp + '#x' + 'f00f' + ';';

        return <i data-icon={code} />;
        // return <i data-icon="&#xf00f;" />
    }
} );
 
React.render( <Icon />, document.getElementById( 'container' ) );