# locale(_:) Modifies the format style to use the specified locale. ``` func locale(_ locale: Locale) -> Measurement.AttributedStyle.ByteCount ``` ## Parameters `locale` The locale to apply to the format style. ## Return Value A format style that uses the specified locale. --- 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)