Instance Method

popLast()

Removes and returns the last element of the collection.

Declaration

mutating func popLast() -> UInt8?

Return Value

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

Discussion

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)

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