Function Child

packages/react-reconciler/src/__tests__/Activity-test.js:199–207

({text})

  // @gate enableActivity
  it('mounts without layout effects when hidden', async () => {
    function Child({text}) {
      useLayoutEffect(() => {
        Scheduler.log('Mount layout');
        return () => {
          Scheduler.log('Unmount layout');
        };
      }, []);
      return <Text text="Child" />;
    }

    const root = ReactNoop.createRoot();