# filter(_:) Generates a slice that contains the elements that satisfy the predicate. ``` func filter(_ isIncluded: (DiscontiguousColumnSlice.Element) throws -> Bool) rethrows -> DiscontiguousColumnSlice ``` ## Parameters `isIncluded` A predicate closure that returns a Boolean. The method uses the closure to determine whether it includes an element in 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)