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

# Sequence Implementations

## Topics

### Instance Properties

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

### Instance Methods

- [allSatisfy(_:)](swift/enumeratedsequence/iterator/allsatisfy(_:).md)
- [compactMap(_:)](swift/enumeratedsequence/iterator/compactmap(_:).md)
- [contains(where:)](swift/enumeratedsequence/iterator/contains(where:).md)
- [count(where:)](swift/enumeratedsequence/iterator/count(where:).md)
- [drop(while:)](swift/enumeratedsequence/iterator/drop(while:).md)
- [dropFirst(_:)](swift/enumeratedsequence/iterator/dropfirst(_:).md)
- [dropLast(_:)](swift/enumeratedsequence/iterator/droplast(_:).md)
- [elementsEqual(_:by:)](swift/enumeratedsequence/iterator/elementsequal(_:by:).md)
- [enumerated()](swift/enumeratedsequence/iterator/enumerated().md)
- [filter(_:)](swift/enumeratedsequence/iterator/filter(_:).md)
- [first(where:)](swift/enumeratedsequence/iterator/first(where:).md)
- [flatMap(_:)](swift/enumeratedsequence/iterator/flatmap(_:)-50wvd.md)
- [flatMap(_:)](swift/enumeratedsequence/iterator/flatmap(_:)-98frp.md)
- [forEach(_:)](swift/enumeratedsequence/iterator/foreach(_:).md)
- [lexicographicallyPrecedes(_:by:)](swift/enumeratedsequence/iterator/lexicographicallyprecedes(_:by:).md)
- [makeIterator()](swift/enumeratedsequence/iterator/makeiterator().md)
- [map(_:)](swift/enumeratedsequence/iterator/map(_:).md)
- [max(by:)](swift/enumeratedsequence/iterator/max(by:).md)
- [min(by:)](swift/enumeratedsequence/iterator/min(by:).md)
- [prefix(_:)](swift/enumeratedsequence/iterator/prefix(_:).md)
- [prefix(while:)](swift/enumeratedsequence/iterator/prefix(while:).md)
- [reduce(_:_:)](swift/enumeratedsequence/iterator/reduce(_:_:).md)
- [reduce(into:_:)](swift/enumeratedsequence/iterator/reduce(into:_:).md)
- [reversed()](swift/enumeratedsequence/iterator/reversed().md)
- [shuffled()](swift/enumeratedsequence/iterator/shuffled().md)
- [shuffled(using:)](swift/enumeratedsequence/iterator/shuffled(using:).md)
- [sorted(by:)](swift/enumeratedsequence/iterator/sorted(by:).md)
- [split(maxSplits:omittingEmptySubsequences:whereSeparator:)](swift/enumeratedsequence/iterator/split(maxsplits:omittingemptysubsequences:whereseparator:).md)
- [starts(with:by:)](swift/enumeratedsequence/iterator/starts(with:by:).md)
- [suffix(_:)](swift/enumeratedsequence/iterator/suffix(_:).md)
- [withContiguousStorageIfAvailable(_:)](swift/enumeratedsequence/iterator/withcontiguousstorageifavailable(_:).md)

### Type Aliases

- [EnumeratedSequence.Iterator.Iterator](swift/enumeratedsequence/iterator/iterator.md)