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://cdnjs.cloudflare.com/ajax/libs/react-dom/16.2.0/umd/react-dom.production.min.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration-babel.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.3.2/react-dom.min.js"></script> 


<div id="container">
  <!-- This element's contents will be replaced with your component. -->
</div>

Babel + JSX

class App extends React.Component {
  constructor() {
    super();
    this.publish = this.publish.bind(this);
  }
  
  publish(topicBox, payloadBox) {
    alert(this.refs.topic.value);
    alert(this.refs.payload.value);
  }
  
  render() {
  	return <div>
      <input 
        ref="topic"
        type="text"
        name="topicBox"
        placeholder="Enter topic here..."/>

      <input 
        ref="payload"
        type="text"
        name="payloadBox"
        placeholder="Enter payload here..."/>

      <button 
      	value="Send"
        onClick={this.publish}> 
      	Publish
      </button>
    </div>
  }
}

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