React Hello World Example with ES6+JSX

A basic Hello World widget with in browser JSX transformed + ES6 support

by janjarfalk

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="app"></div>

JavaScript 1.7

class UserListItem extends React.Component {
  render(){
    return <li onClick={this.props.onClick}>{this.props.user}</li>;
  }
}


class UserList extends React.Component {
	constructor(props){
  	super(props);
    this.state = {
    	users: ['Jan','Daniel','Patrick']
    }
  }
  handleOnClick(userToRemove){
  	this.setState((prevState) => ({users: prevState.users.filter(user => user !== userToRemove)}))
  }
  render(){
    return (
    	<ul>
      	{this.state.users.map(user => <UserListItem key={user} user={user} onClick={() => this.handleOnClick(user)} />)}
      </ul>
      );
  }
}



React.render(<UserList />, document.getElementById('app'));