React Base Fiddle (JSX)

Starting point for creating JSFiddles with React.

HTML

<script src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/4.0.5/redux.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/4.0.5/redux.min.js"></script>
<div id="container">
    <!-- This element's contents will be replaced with your component. -->
</div>

Babel + JSX

class Redux extends React.Component  {
  constructor(props){
     super(props)
  }
  
  render() {
    const reducer = (state = 5) => {
        return state;
    }
    const store =Redux.createStore(reducer);
    return (
       <div>
         
       </div>
    );
  }
}

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