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

# Sequence Implementations

## Topics

### Structures

- [FlattenSequence.Iterator](swift/flattensequence/iterator.md)

### Instance Properties

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

### Instance Methods

- [allSatisfy(_:)](swift/flattensequence/allsatisfy(_:).md)
- [compactMap(_:)](swift/flattensequence/compactmap(_:).md)
- [contains(_:)](swift/flattensequence/contains(_:).md)
- [contains(where:)](swift/flattensequence/contains(where:).md)
- [count(where:)](swift/flattensequence/count(where:).md)
- [drop(while:)](swift/flattensequence/drop(while:).md)
- [dropFirst(_:)](swift/flattensequence/dropfirst(_:).md)
- [dropLast(_:)](swift/flattensequence/droplast(_:).md)
- [elementsEqual(_:)](swift/flattensequence/elementsequal(_:).md)
- [elementsEqual(_:by:)](swift/flattensequence/elementsequal(_:by:).md)
- [enumerated()](swift/flattensequence/enumerated().md)
- [filter(_:)](swift/flattensequence/filter(_:).md)
- [first(where:)](swift/flattensequence/first(where:).md)
- [flatMap(_:)](swift/flattensequence/flatmap(_:)-43e2u.md)
- [flatMap(_:)](swift/flattensequence/flatmap(_:)-731v7.md)
- [forEach(_:)](swift/flattensequence/foreach(_:).md)
- [joined()](swift/flattensequence/joined().md)
- [joined(separator:)](swift/flattensequence/joined(separator:)-53e90.md)
- [joined(separator:)](swift/flattensequence/joined(separator:)-8az16.md)
- [lexicographicallyPrecedes(_:)](swift/flattensequence/lexicographicallyprecedes(_:).md)
- [lexicographicallyPrecedes(_:by:)](swift/flattensequence/lexicographicallyprecedes(_:by:).md)
- [makeIterator()](swift/flattensequence/makeiterator().md)
- [map(_:)](swift/flattensequence/map(_:)-7kusu.md)
- [max()](swift/flattensequence/max().md)
- [max(by:)](swift/flattensequence/max(by:).md)
- [min()](swift/flattensequence/min().md)
- [min(by:)](swift/flattensequence/min(by:).md)
- [prefix(_:)](swift/flattensequence/prefix(_:).md)
- [prefix(while:)](swift/flattensequence/prefix(while:).md)
- [reduce(_:_:)](swift/flattensequence/reduce(_:_:).md)
- [reduce(into:_:)](swift/flattensequence/reduce(into:_:).md)
- [reversed()](swift/flattensequence/reversed().md)
- [shuffled()](swift/flattensequence/shuffled().md)
- [shuffled(using:)](swift/flattensequence/shuffled(using:).md)
- [sorted()](swift/flattensequence/sorted().md)
- [sorted(by:)](swift/flattensequence/sorted(by:).md)
- [split(maxSplits:omittingEmptySubsequences:whereSeparator:)](swift/flattensequence/split(maxsplits:omittingemptysubsequences:whereseparator:).md)
- [split(separator:maxSplits:omittingEmptySubsequences:)](swift/flattensequence/split(separator:maxsplits:omittingemptysubsequences:)-20oji.md)
- [starts(with:)](swift/flattensequence/starts(with:).md)
- [starts(with:by:)](swift/flattensequence/starts(with:by:).md)
- [suffix(_:)](swift/flattensequence/suffix(_:).md)
- [withContiguousStorageIfAvailable(_:)](swift/flattensequence/withcontiguousstorageifavailable(_:).md)

### Type Aliases

- [FlattenSequence.Element](swift/flattensequence/element.md)