Function last

packages/react-aria/src/grid/useGridCell.ts:395–405

(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;
}