Instance Method

removeLast(_:)

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

Declaration

mutating func removeLast(_ k: Int)

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.

See Also

Removing Elements

func remove(at: Int) -> Element

Removes and returns the element at the specified position.

func removeFirst() -> Element

Removes and returns the first element of the collection.

func removeFirst(Int)

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

func removeLast() -> Element

Removes and returns the last element of the collection.

func removeSubrange(Range<Int>)

Removes the elements in the specified subrange from the collection.

func removeSubrange<R>(R)

Removes the elements in the specified subrange from the collection.

func removeAll(where: (Element) -> Bool)

Removes all the elements that satisfy the given predicate.

func removeAll(keepingCapacity: Bool)

Removes all elements from the array.

func popLast() -> Element?

Removes and returns the last element of the collection.