# distinct() Generates a discontiguous slice that contains unique elements. ``` func distinct() -> DiscontiguousColumnSlice ``` ## Return Value A discontiguous column slice. ## Discussion The method only adds the first of multiple elements with the same value — the element with the smallest index — to the slice. --- 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)