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

# BidirectionalCollection Implementations

## Topics

### Instance Properties

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

### Instance Methods

- [difference(from:)](swift/lazymapsequence/difference(from:).md)
- [difference(from:by:)](swift/lazymapsequence/difference(from:by:).md)
- [distance(from:to:)](swift/lazymapsequence/distance(from:to:)-3cd1e.md)
- [formIndex(before:)](swift/lazymapsequence/formindex(before:).md)
- [formIndex(before:)](swift/lazymapsequence/formindex(before:)-8rmvx.md)
- [index(_:offsetBy:)](swift/lazymapsequence/index(_:offsetby:)-ldgv.md)
- [index(_:offsetBy:limitedBy:)](swift/lazymapsequence/index(_:offsetby:limitedby:)-niw7.md)
- [index(before:)](swift/lazymapsequence/index(before:).md)
- [joined(separator:)](swift/lazymapsequence/joined(separator:)-4i6uz.md)
- [last(where:)](swift/lazymapsequence/last(where:).md)
- [lastIndex(of:)](swift/lazymapsequence/lastindex(of:).md)
- [lastIndex(where:)](swift/lazymapsequence/lastindex(where:).md)