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

# Collection Implementations

## Topics

### Instance Properties

- [count](swift/lazysequence/count.md)
- [count](swift/lazysequence/count-1cggd.md)
- [endIndex](swift/lazysequence/endindex.md)
- [indices](swift/lazysequence/indices-swift.property.md)
- [isEmpty](swift/lazysequence/isempty.md)
- [isEmpty](swift/lazysequence/isempty-1upms.md)
- [startIndex](swift/lazysequence/startindex.md)

### Instance Methods

- [distance(from:to:)](swift/lazysequence/distance(from:to:).md)
- [distance(from:to:)](swift/lazysequence/distance(from:to:)-396sb.md)
- [firstIndex(of:)](swift/lazysequence/firstindex(of:).md)
- [firstIndex(where:)](swift/lazysequence/firstindex(where:).md)
- [formIndex(_:offsetBy:)](swift/lazysequence/formindex(_:offsetby:).md)
- [formIndex(_:offsetBy:limitedBy:)](swift/lazysequence/formindex(_:offsetby:limitedby:).md)
- [formIndex(after:)](swift/lazysequence/formindex(after:).md)
- [index(_:offsetBy:)](swift/lazysequence/index(_:offsetby:).md)
- [index(_:offsetBy:)](swift/lazysequence/index(_:offsetby:)-t8sl.md)
- [index(_:offsetBy:limitedBy:)](swift/lazysequence/index(_:offsetby:limitedby:).md)
- [index(_:offsetBy:limitedBy:)](swift/lazysequence/index(_:offsetby:limitedby:)-62vws.md)
- [index(after:)](swift/lazysequence/index(after:).md)
- [index(of:)](swift/lazysequence/index(of:).md)
- [indices(of:)](swift/lazysequence/indices(of:).md)
- [indices(where:)](swift/lazysequence/indices(where:).md)
- [makeIterator()](swift/lazysequence/makeiterator().md)
- [map(_:)](swift/lazysequence/map(_:)-7wx5z.md)
- [prefix(through:)](swift/lazysequence/prefix(through:).md)
- [prefix(upTo:)](swift/lazysequence/prefix(upto:).md)
- [randomElement()](swift/lazysequence/randomelement().md)
- [randomElement(using:)](swift/lazysequence/randomelement(using:).md)
- [removingSubranges(_:)](swift/lazysequence/removingsubranges(_:).md)
- [split(separator:maxSplits:omittingEmptySubsequences:)](swift/lazysequence/split(separator:maxsplits:omittingemptysubsequences:)-ki1c.md)
- [suffix(from:)](swift/lazysequence/suffix(from:).md)

### Subscripts

- [subscript(_:)](swift/lazysequence/subscript(_:).md)
- [subscript(_:)](swift/lazysequence/subscript(_:)-1iwxl.md)
- [subscript(_:)](swift/lazysequence/subscript(_:)-1rlj.md)
- [subscript(_:)](swift/lazysequence/subscript(_:)-8iflg.md)
- [subscript(_:)](swift/lazysequence/subscript(_:)-9kt1v.md)

### Type Aliases

- [LazySequence.Index](swift/lazysequence/index.md)
- [LazySequence.Indices](swift/lazysequence/indices-swift.typealias.md)
- [LazySequence.Iterator](swift/lazysequence/iterator.md)
- [LazySequence.SubSequence](swift/lazysequence/subsequence.md)