# RangeExpression A type that can be used to slice a collection. ``` protocol RangeExpression ``` ## Overview A type that conforms to `RangeExpression` can convert itself to a `Range` of indices within a given collection. --- 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)