---
title: Sequence Implementations
framework: swift
role: collectionGroup
role_heading: API Collection
path: swift/iteratorsequence/sequence-implementations
---

# Sequence Implementations

## Topics

### Instance Properties

- [lazy](swift/iteratorsequence/lazy.md)
- [underestimatedCount](swift/iteratorsequence/underestimatedcount.md)

### Instance Methods

- [allSatisfy(_:)](swift/iteratorsequence/allsatisfy(_:).md)
- [compactMap(_:)](swift/iteratorsequence/compactmap(_:).md)
- [contains(_:)](swift/iteratorsequence/contains(_:).md)
- [contains(where:)](swift/iteratorsequence/contains(where:).md)
- [count(where:)](swift/iteratorsequence/count(where:).md)
- [drop(while:)](swift/iteratorsequence/drop(while:).md)
- [dropFirst(_:)](swift/iteratorsequence/dropfirst(_:).md)
- [dropLast(_:)](swift/iteratorsequence/droplast(_:).md)
- [elementsEqual(_:)](swift/iteratorsequence/elementsequal(_:).md)
- [elementsEqual(_:by:)](swift/iteratorsequence/elementsequal(_:by:).md)
- [enumerated()](swift/iteratorsequence/enumerated().md)
- [filter(_:)](swift/iteratorsequence/filter(_:).md)
- [first(where:)](swift/iteratorsequence/first(where:).md)
- [flatMap(_:)](swift/iteratorsequence/flatmap(_:)-1o4bm.md)
- [flatMap(_:)](swift/iteratorsequence/flatmap(_:)-2tee.md)
- [forEach(_:)](swift/iteratorsequence/foreach(_:).md)
- [joined()](swift/iteratorsequence/joined().md)
- [joined(separator:)](swift/iteratorsequence/joined(separator:)-2g7pm.md)
- [joined(separator:)](swift/iteratorsequence/joined(separator:)-4ve6o.md)
- [lexicographicallyPrecedes(_:)](swift/iteratorsequence/lexicographicallyprecedes(_:).md)
- [lexicographicallyPrecedes(_:by:)](swift/iteratorsequence/lexicographicallyprecedes(_:by:).md)
- [makeIterator()](swift/iteratorsequence/makeiterator().md)
- [map(_:)](swift/iteratorsequence/map(_:).md)
- [max()](swift/iteratorsequence/max().md)
- [max(by:)](swift/iteratorsequence/max(by:).md)
- [min()](swift/iteratorsequence/min().md)
- [min(by:)](swift/iteratorsequence/min(by:).md)
- [prefix(_:)](swift/iteratorsequence/prefix(_:).md)
- [prefix(while:)](swift/iteratorsequence/prefix(while:).md)
- [reduce(_:_:)](swift/iteratorsequence/reduce(_:_:).md)
- [reduce(into:_:)](swift/iteratorsequence/reduce(into:_:).md)
- [reversed()](swift/iteratorsequence/reversed().md)
- [shuffled()](swift/iteratorsequence/shuffled().md)
- [shuffled(using:)](swift/iteratorsequence/shuffled(using:).md)
- [sorted()](swift/iteratorsequence/sorted().md)
- [sorted(by:)](swift/iteratorsequence/sorted(by:).md)
- [split(maxSplits:omittingEmptySubsequences:whereSeparator:)](swift/iteratorsequence/split(maxsplits:omittingemptysubsequences:whereseparator:).md)
- [split(separator:maxSplits:omittingEmptySubsequences:)](swift/iteratorsequence/split(separator:maxsplits:omittingemptysubsequences:).md)
- [starts(with:)](swift/iteratorsequence/starts(with:).md)
- [starts(with:by:)](swift/iteratorsequence/starts(with:by:).md)
- [suffix(_:)](swift/iteratorsequence/suffix(_:).md)
- [withContiguousStorageIfAvailable(_:)](swift/iteratorsequence/withcontiguousstorageifavailable(_:).md)

### Type Aliases

- [IteratorSequence.Iterator](swift/iteratorsequence/iterator.md)