WizardStep1Ex2.es6

class Step1 extends React.Component {
  constructor(props) {
    super(props);
    // Bindings for form fields would go here,
    // and state would keep track of field input
  }
  _validate() {
    // a sanitized version of state can be passed instead
    this.props.afterValid(this.state)
  }
  render() {
    if (this.props.currentStep !== 1) {
      return null;
    }
    
    return(
      <form>
        // Form fields would go here
        <button onClick={this._validate} />
      </form>
    );
  }
}