Removes all elements from the collection.
SDK
- Xcode 9.0+
Framework
- Swift Standard Library
Declaration
mutating func removeAll(keepingCapacity keepCapacity: Bool = false)
Parameters
keepCapacityPass
trueto request that the collection avoid releasing its storage. Retaining the collection’s storage can be a useful optimization when you’re planning to grow the collection again. The default value isfalse.
Discussion
Calling this method may invalidate any existing indices for use with this collection.
Complexity: O(n), where n is the length of the collection.