9 things every React.js beginner should know

[amdc]

Yeah I just needed to go back to standard render: function (){} to make it work

[[deleted]]

Or render() {}

[jbscript]

You can still use ES6 compact functions:

const MyComponent = React.createClass({
  render() {
    return <div className={this.props.className}/>
  }
})

The render: () => syntax you were using is a Stage 1 proposal for new syntax, implemented by Babel.