Here's how false renders in different situations: Renders as id="false":

setState void setState( function|object nextState, [function callback] )

Unmounting: componentWillUnmount void componentWillUnmount()

ReactDOMServer.renderToString string renderToString(ReactElement element)

Beside DOM differences, React offers some attributes that simply don't exist in DOM.

ReactTestUtils makes it easy to test React components in the testing framework of your choice (we use

Updating: componentWillUpdate void componentWillUpdate( object nextProps, object nextState

You can't access the children of your component through this.props.children. this.props.children designates the children being passed onto

React React is the entry point to the React library. If you're using one of the prebuilt packages it's available

Currently, in a component's render, you can only return one node; if you have, say, a list of divs to return, you must wrap your components within