相关疑难解决方法(0)

<script type='text/javascript' src="https://unpkg.com/react@0.11.0/dist/JSXTransformer.js"></script>
<script type='text/javascript' src="https://unpkg.com/react@0.11.0/dist/react-with-addons.js"></script>

<script type="text/jsx">
/** @jsx React.DOM */
    
var If = React.createClass({
  displayName: 'If',

  render: function()
  {
    if (this.props.condition)
      return <span>{this.props.children}</span>
    return null;
  }
});

var Main = React.createClass({
    render: function() {
        return (
           <div>
             <If condition={false}>
                <div>Never showing false item</div>
             </If>
             <If condition={true}>
                <div>Showing true item</div>
             </If>
          </div>
        );
    }
});

React.renderComponent(<Main/>, document.body);
</script>