---
title: String.UTF16View.SubSequence
framework: swift
role: symbol
role_heading: Type Alias
path: swift/string/utf16view/subsequence
---

# String.UTF16View.SubSequence

A collection representing a contiguous subrange of this collection’s elements. The subsequence shares indices with the original collection.

## Declaration

```swift
typealias SubSequence = Substring.UTF16View
```

## Discussion

Discussion The default subsequence type for collections that don’t define their own is Slice.