---
title: BidirectionalCollection Implementations
framework: paperkit
role: collectionGroup
role_heading: API Collection
path: paperkit/markuporderedset/bidirectionalcollection-implementations
---

# BidirectionalCollection Implementations

## Topics

### Instance Properties

- [endIndex](paperkit/markuporderedset/endindex.md)
- [startIndex](paperkit/markuporderedset/startindex.md)

### Instance Methods

- [index(after:)](paperkit/markuporderedset/index(after:).md)

### Subscripts

- [subscript(_:)](paperkit/markuporderedset/subscript(_:)-3x3ly.md)