message: types(@vant/use): useScrollParent el can be undefined
diff: @@ -38,7 +38,7 @@ function getScrollParent(el: Element, root: ScrollElement = window) {
  return root;
  }
  -export function useScrollParent(el: Ref<Element>) {
  +export function useScrollParent(el: Ref<Element | undefined>) {
  const scrollParent = ref();
  onMounted(() => {
  