Instance MethodSwift

popLast()

Removes and returns the last element of the collection.

Available because Self conforms to RangeReplaceableCollection.
Available when Self conforms to BidirectionalCollection

mutating func popLast() -> Self.Element?

Returns

The last element of the collection if the collection is not empty; otherwise, nil.

Overview

Calling this method may invalidate all saved indices of this collection. Do not rely on a previously stored index value after altering a collection with any operation that can change its length.