Typescript use in React2019-08-20Θ

class App extends React.Component<AppProps, AppState> {
  private InputRef = React.RefObject<HTMLInputElement>;
  constructor(props) {
    super(props);
    this.InputRef = React.createRef();
  }
  render() {
    return <input type="text" ref={this.InputRef} />;
  }
}

const App = (props: AppProps) => {
  const InputRef = React.useRef<HTMLDivElement>(null);
  return <input type="text" ref={this.InputRef} />;
}