typescript type for ref code example

Example 1: Cannot find name 'RefObject'

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

Example 2: react forwardref typescript

type MyProps = {
  name: string;
}

const CustomInput = forwardRef<HTMLInputElement, MyProps>(props) => {
  // access your props and ref here
}