pop
Removes and returns the last item in this deque or returns null if this deque is empty.
Example
val deque = dequeOf(1)
assert(deque.popLastOrNull() == 1)
assert(deque.popLastOrNull() == null)Content copied to clipboard
Return
Either the value that was previously the last item in this deque, if this deque was non-empty, or null if this deque was empty.