# clone(capacity:) Copy the contents of this array into a newly allocated unique array instance with the specified capacity. ``` func clone(capacity: Int) -> UniqueArray ``` ## Parameters `capacity` The desired capacity of the resulting unique array. `capacity` must be greater than or equal to `count`. ## Discussion> Complexity: O(`count`) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)