Removes and returns the last element of the collection.
SDK
Framework
mutating func popLast() -> Character?
The 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.
Complexity: O(1)
func remove(at: StringRemoves and returns the character at the specified position.
func removeReplaces this string with the empty string.
func removeRemoves all the elements that satisfy the given predicate.
func removeRemoves and returns the first element of the collection.
func removeRemoves the specified number of elements from the beginning of the collection.
func removeRemoves and returns the last element of the collection.
func removeRemoves the specified number of elements from the end of the collection.
func removeRemoves the characters in the given range.
func removeRemoves the elements in the specified subrange from the collection.
func filter((Character) -> Bool) -> StringReturns a new collection of the same type containing, in order, the elements of the original collection that satisfy the given predicate.
func drop(while: (Character) -> Bool) -> SubstringReturns a subsequence by skipping elements while predicate returns true and returning the remaining elements.
func dropReturns a subsequence containing all but the given number of initial elements.
func dropReturns a subsequence containing all but the specified number of final elements.