# suffix(from:) Returns a subsequence from the specified position to the end of the collection. ``` func suffix(from start: Self.Index) -> Self.SubSequence ``` ## Parameters `start` The index at which to start the resulting subsequence. `start` must be a valid index of the collection. ## Return Value A subsequence starting at the `start` position. ## Discussion The following example searches for the index of the number `40` in an array of integers, and then prints the suffix of the array starting at that index: ``` let numbers = [10, 20, 30, 40, 50, 60] if let i = numbers.firstIndex(of: 40) { print(numbers.suffix(from: i)) } // Prints "[40, 50, 60]" ``` Passing the collection’s `endIndex` as the `start` parameter results in an empty subsequence. ``` print(numbers.suffix(from: numbers.endIndex)) // Prints "[]" ``` Using the `suffix(from:)` method is equivalent to using a partial range from the index as the collection’s subscript. The subscript notation is preferred over `suffix(from:)`. ``` if let i = numbers.firstIndex(of: 40) { print(numbers[i...]) } // Prints "[40, 50, 60]" ``` > Complexity: O(1) --- 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)