useMountedState

检查组件的挂载状态

Usage

实时编辑器

function Demo() {
  const isMounted = useMountedState();

  const [, update] = useState(0);
  useEffect(() => {
    update(1);
  }, []);
  return <div>This component is {isMounted() ? "MOUNTED" : "NOT MOUNTED"}</div>;
};

结果

Loading...

API

useMountedState

Returns

() => boolean: 组件的挂载状态

Arguments