---
title: ArraySlice.SubSequence
framework: swift
role: symbol
role_heading: Type Alias
path: swift/arrayslice/subsequence
---

# ArraySlice.SubSequence

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

## Declaration

```swift
typealias SubSequence = ArraySlice<Element>
```

## Discussion

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