gabor-paholics-benestudio/usePrevous_2.js

## usePrevous_2.js
function usePrevious<T>(value: T): T | undefined {
   const ref = useRef<T>();
   useEffect(() => {
       ref.current = value;
   });
   return ref.current;
}
	function usePrevious<T>(value: T): T \| undefined {
	const ref = useRef<T>();
	useEffect(() => {
	ref.current = value;
	});
	return ref.current;
	}