React lets you use whatever style of data management you want, including mutation. However, if you can use immutable data in performance-critical parts of your application

getDOMNode DOMElement getDOMNode() If this component

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

ReactDOM.render render( ReactElement element, DOMElement container, [function callback]

JSX looks like HTML but there are some important differences you may run into. For DOM differences, such as the inline style

Form components such as <input>, <textarea>, and <option> differ from other native components because they can be mutated

After building your component, you may find yourself wanting to "reach out" and invoke methods on component instances returned from render(). In most cases, this

CDN-hosted React We provide CDN-hosted versions of React on our download page. These pre-built files use the UMD

Specifying the value prop on a controlled component prevents the user from changing the input unless

React.Children React.Children provides utilities for dealing with the this.props.children opaque data structure.