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://fb.me/react-with-addons-0.14.0.js"></script>
<script src="https://fb.me/react-dom-0.14.0.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration-babel.js"></script>

<div id="container">
</div>

JavaScript 1.7

var Example = React.createClass({
    getInitialState: function() {
        return {
            showCounter: false,
            counter: 0
        };
    },

    tick: function() {
        this.setState({ counter: this.state.counter + 1 });
    },

    componentDidMount: function() {
        this.interval = setInterval(this.tick, 1000);
    },

    componentWillUnmount: function() {
        clearInterval(this.interval);
    },

    render: function() {
        console.log('render');

        return <div>{this.state.showCounter ? this.state.counter : 'counter is hidden'}</div>;
    }
});
 
ReactDOM.render(
	<Example />,
    document.getElementById('container')
);