Instance Method

removeLast(_:)

Removes the specified number of elements from the end of the collection.

Declaration

mutating func removeLast(_ k: Int)
Available when Self conforms to BidirectionalCollection.

Parameters

k

The number of elements to remove from the collection. k must be greater than or equal to zero and must not exceed the number of elements in the collection.

Discussion

Attempting to remove more elements than exist in the collection triggers a runtime error.

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.

Complexity: O(k), where k is the specified number of elements.