---
title: BidirectionalCollection Implementations
framework: swift
role: collectionGroup
role_heading: API Collection
path: swift/lazysequence/bidirectionalcollection-implementations
---

# BidirectionalCollection Implementations

## Topics

### Instance Properties

- [last](swift/lazysequence/last.md)

### Instance Methods

- [difference(from:)](swift/lazysequence/difference(from:).md)
- [difference(from:by:)](swift/lazysequence/difference(from:by:).md)
- [distance(from:to:)](swift/lazysequence/distance(from:to:)-5ong5.md)
- [formIndex(before:)](swift/lazysequence/formindex(before:).md)
- [index(_:offsetBy:)](swift/lazysequence/index(_:offsetby:)-9c2fj.md)
- [index(_:offsetBy:limitedBy:)](swift/lazysequence/index(_:offsetby:limitedby:)-9juzm.md)
- [index(before:)](swift/lazysequence/index(before:).md)
- [joined(separator:)](swift/lazysequence/joined(separator:)-5e92i.md)
- [last(where:)](swift/lazysequence/last(where:).md)
- [lastIndex(of:)](swift/lazysequence/lastindex(of:).md)
- [lastIndex(where:)](swift/lazysequence/lastindex(where:).md)