onLast
Returns a lazy handle to the last match, in depth-first pre-order. The handle re-resolves against the live tree on each use, so it tracks the current last match across recomposition; it fails on use when nothing matches.
Returns a lazy handle to the last match, in depth-first pre-order. The handle re-resolves against the live tree on each use, so it tracks the current last match across recomposition; it fails on use when nothing matches.