# subtracting(_:) Returns a new set containing the elements of this set that do not occur in the given sequence. ``` func subtracting(_ other: S) -> Set where Element == S.Element, S : Sequence ``` ## Parameters `other` A sequence of elements. `other` must be finite. ## Return Value A new set. ## Discussion In the following example, the `nonNeighbors` set is made up of the elements of the `employees` set that are not elements of `neighbors`: ``` let employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"] let neighbors = ["Bethany", "Eric", "Forlani", "Greta"] let nonNeighbors = employees.subtracting(neighbors) print(nonNeighbors) // Prints "["Chris", "Diana", "Alicia"]" ``` --- 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)