Function useIsMounted

web/pgadmin/static/js/custom_hooks.js:109–117

()

}

export function useIsMounted() {
  const ref = useRef(true);
  useEffect(() => {
    return () => {
      ref.current = false;
    };
  }, []);
  return useCallback(() => ref.current, []);
}

export function useStopwatch() {
  const prevTime = useRef(new Date());