# lastRange(of:) Returns the last found range of the type’s data buffer. ``` func lastRange(of data: D) -> Range? where D : DataProtocol ``` ## Parameters `data` The data sequence to find. ## Return Value The range, if found, of the last match of the provided data sequence. ## Discussion An example of searching a data buffer for the last match: ```swift let data: [UInt8] = [0, 1, 2, 3, 0, 1, 2, 3] let pattern: [UInt8] = [2, 3] let match = data.lastRange(of: pattern) // match == 6..<8 ``` --- 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)