React Base Fiddle (JSX)

Starting point for creating JSFiddles with React.

by aybalasubramanian

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

Babel + JSX

class Hello extends React.Component {
	constructor(props) {
  	super(props)
		  this.state = {
        tasks: [{value:'foo'}, {value:' bar'}]
      }
   	  this.addTask = this.addTask.bind(this)
  }
  
  addTask() {
  	this.setState({tasks: this.state.tasks.concat(" new value")})
  }

  render() {
    return (
    	<div>
      Hello {this.props.name}
      <button onClick={this.addTask}>add task</button>
      <br></br>
      {this.state.tasks}
    </div>
    )
    
  }
}

ReactDOM.render(
  <Hello name="World" />,
  document.getElementById('container')
);