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              /*      ↑ Resultで実行結果が見られます */
/** @jsx React.DOM */

App = React.createClass({
  /* stateの初期化 */
  getInitialState: function() { 
    return {
      switch1: true
  handleSwitch1: function() {
      switch1: !this.state.switch1 /* トグル処理 */
  /* 画面を生成 */
  render: function() {
    return <div>
      <button onClick={this.handleSwitch1}>
        {this.state.switch1 ? "On" : "Off"}

React.render(<App/>, document.body);
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