# init(utf16Offset:in:) Creates a new index at the specified UTF-16 code unit offset ``` init(utf16Offset offset: Int, in s: S) where S : StringProtocol ``` ## Parameters `offset` An offset in UTF-16 code units. `s` The string. --- 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)