Forked from jamesreggio/react-forwardref-simple-example.js
Created
April 28, 2020 18:53
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Simple example usage of React.forwardRef()
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| // EmailInput wraps an HTML `input` and adds some app-specific styling. | |
| const EmailInput = React.forwardRef((props, ref) => ( | |
| <input ref={ref} {...props} type="email" className="appEmailInput" /> | |
| )); | |
| class App extends Component { | |
| constructor(props) { | |
| super(props); | |
| this.emailRef = React.createRef(); | |
| } | |
| render() { | |
| return ( | |
| <div> | |
| <EmailInput ref={this.emailRef} /> | |
| <button onPress={() => this.emailRef.current.focus()}> | |
| Click me to focus email | |
| </button> | |
| </div> | |
| ); | |
| } | |
| } | |
| // `this.emailRef.current` points to the `input` component inside of EmailInput | |
| // (instead of EmailInput itself), because EmailInput is using React.forwardRef | |
| // to 'forward' its ref onward. This makes it possible to call `focus`. |
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