---
title: KeyValuePairs.SubSequence
framework: swift
role: symbol
role_heading: Type Alias
path: swift/keyvaluepairs/subsequence
---

# KeyValuePairs.SubSequence

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

## Declaration

```swift
typealias SubSequence = Slice<KeyValuePairs<Key, Value>>
```

## Discussion

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