code: function(constructor, props, container) {
      var element = ReactElement.createElement(constructor, props);
      return ReactMount.render(element, container);
    }
docs: Constructs a component instance of `constructor` with `initialProps` and
  renders it into the supplied `container`.
  
  @param {function} constructor React component constructor.
  @param {?object} props Initial props of the component instance.
  @param {DOMElement} container DOM element to render into.
  @return {ReactComponent} Component instance rendered in `container`.