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

# BidirectionalCollection Implementations

## Topics

### Instance Properties

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

### Instance Methods

- [difference(from:)](swift/unsafemutablebufferpointer/difference(from:).md)
- [difference(from:by:)](swift/unsafemutablebufferpointer/difference(from:by:).md)
- [dropLast(_:)](swift/unsafemutablebufferpointer/droplast(_:)-7846m.md)
- [formIndex(before:)](swift/unsafemutablebufferpointer/formindex(before:).md)
- [index(before:)](swift/unsafemutablebufferpointer/index(before:).md)
- [joined(separator:)](swift/unsafemutablebufferpointer/joined(separator:)-5do13.md)
- [last(where:)](swift/unsafemutablebufferpointer/last(where:).md)
- [lastIndex(of:)](swift/unsafemutablebufferpointer/lastindex(of:).md)
- [lastIndex(where:)](swift/unsafemutablebufferpointer/lastindex(where:).md)
- [reversed()](swift/unsafemutablebufferpointer/reversed()-3wn5k.md)
- [suffix(_:)](swift/unsafemutablebufferpointer/suffix(_:)-3w6rj.md)