# remove(_:) Removes the given element and any elements subsumed by the given element. ``` @discardableResult mutating func remove(_ member: Self.Element) -> Self.Element? ``` ## Parameters `member` The element of the set to remove. ## Return Value For ordinary sets, an element equal to `member` if `member` is contained in the set; otherwise, `nil`. In some cases, a returned element may be distinguishable from `member` by identity comparison or some other means. For sets where the set type and element type are the same, like `OptionSet` types, this method returns any intersection between the set and `[member]` , or `nil` if the intersection is empty. --- 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)