# popLast() Removes and returns the last element of the collection. ``` mutating func popLast() -> Self.Element? ``` ## Return Value The last element of the collection if the collection has one or more elements; otherwise, `nil`. ## Discussion You can use `popLast()` to remove the last element of a collection that might be empty. The `removeLast()` method must be used only on a nonempty collection. > Complexity: O(1) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)