Function update

packages/react-aria/src/focus/useHasTabbableChild.ts:41–46

()

  useLayoutEffect(() => {
    if (ref?.current && !isDisabled) {
      let update = () => {
        if (ref.current) {
          let walker = getFocusableTreeWalker(ref.current, {tabbable: true});
          setHasTabbableChild(!!walker.nextNode());
        }
      };

      update();