---
title: BidirectionalCollection Implementations
framework: swift-package-manager
role: collectionGroup
role_heading: API Collection
path: swift-package-manager/documentation/packageplugin/filelist/bidirectionalcollection-implementations
---

# BidirectionalCollection Implementations

## Topics

### Instance Properties

- [last](swift-package-manager/documentation/packageplugin/filelist/last.md)

### Instance Methods

- [difference(from:by:)](swift-package-manager/documentation/packageplugin/filelist/difference(from:by:).md)
- [formIndex(before:)](swift-package-manager/documentation/packageplugin/filelist/formindex(before:).md)
- [last(where:)](swift-package-manager/documentation/packageplugin/filelist/last(where:).md)
- [lastIndex(where:)](swift-package-manager/documentation/packageplugin/filelist/lastindex(where:).md)