Removes and returns the last element of the collection.
mutating func popLast() -> Self.Element? sSmsSKRz11SubSequenceSlQzRszrlE7popLast7ElementSTQzSgyF What are these?253JBwhere Self:BidirectionalCollection, Self == Self.SubSequenceThe last element of the collection if the collection is not empty; otherwise, nil.
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.
import Swiftprotocol RangeReplaceableCollection<Element> : Collection where Self.SubSequence : RangeReplaceableCollectionA collection that supports replacement of an arbitrary subrange of elements with the elements of another collection.
associatedtype Element where Self.Element == Self.Iterator.ElementA type representing the sequence’s elements.
protocol BidirectionalCollection<Element> : Collection where Self.Indices : BidirectionalCollection, Self.SubSequence : BidirectionalCollectionA collection that supports backward as well as forward traversal.
@discardableResult mutating func removeLast() -> Self.Element Removes and returns the last element of the collection.
mutating func removeLast(_ k: Int) Removes the specified number of elements from the end of the collection.