# isSubset(of:) Returns a Boolean value that indicates whether every object in the receiving ordered set is also present in another given set. ``` func isSubset(of set: Set) -> Bool ``` ## Parameters `set` The set with which to compare the receiving ordered set. ## Return Value if every object in the receiving ordered set is also present in `set`, otherwise . --- 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)