Function last

packages/react-aria/src/gridlist/useGridListItem.ts:468–478

(walker: TreeWalker)

}

function last(walker: TreeWalker) {
  let next: FocusableElement | null = null;
  let last: FocusableElement | null = null;
  do {
    last = walker.lastChild() as FocusableElement | null;
    if (last) {
      next = last;
    }
  } while (last);
  return next;
}

function getDirectChildren<T>(parent: RSNode<T>, collection: Collection<RSNode<T>>) {
  // We can't assume that we can use firstChildKey because if a person builds a tree using hooks, they would not have access to that property (using type Node vs CollectionNode)