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

# Collection Implementations

## Topics

### Instance Properties

- [count](swift/contiguousarray/count.md)
- [first](swift/contiguousarray/first.md)
- [isEmpty](swift/contiguousarray/isempty.md)
- [underestimatedCount](swift/contiguousarray/underestimatedcount.md)

### Instance Methods

- [drop(while:)](swift/contiguousarray/drop(while:).md)
- [dropFirst(_:)](swift/contiguousarray/dropfirst(_:).md)
- [firstIndex(of:)](swift/contiguousarray/firstindex(of:).md)
- [firstIndex(where:)](swift/contiguousarray/firstindex(where:).md)
- [formIndex(_:offsetBy:)](swift/contiguousarray/formindex(_:offsetby:).md)
- [formIndex(_:offsetBy:limitedBy:)](swift/contiguousarray/formindex(_:offsetby:limitedby:).md)
- [index(of:)](swift/contiguousarray/index(of:).md)
- [indices(of:)](swift/contiguousarray/indices(of:).md)
- [indices(where:)](swift/contiguousarray/indices(where:).md)
- [makeIterator()](swift/contiguousarray/makeiterator().md)
- [map(_:)](swift/contiguousarray/map(_:)-8zwtw.md)
- [prefix(_:)](swift/contiguousarray/prefix(_:).md)
- [prefix(through:)](swift/contiguousarray/prefix(through:).md)
- [prefix(upTo:)](swift/contiguousarray/prefix(upto:).md)
- [prefix(while:)](swift/contiguousarray/prefix(while:).md)
- [randomElement()](swift/contiguousarray/randomelement().md)
- [randomElement(using:)](swift/contiguousarray/randomelement(using:).md)
- [removingSubranges(_:)](swift/contiguousarray/removingsubranges(_:).md)
- [split(maxSplits:omittingEmptySubsequences:whereSeparator:)](swift/contiguousarray/split(maxsplits:omittingemptysubsequences:whereseparator:).md)
- [split(separator:maxSplits:omittingEmptySubsequences:)](swift/contiguousarray/split(separator:maxsplits:omittingemptysubsequences:)-3y2q6.md)
- [suffix(from:)](swift/contiguousarray/suffix(from:).md)

### Subscripts

- [subscript(_:)](swift/contiguousarray/subscript(_:)-57hw.md)
- [subscript(_:)](swift/contiguousarray/subscript(_:)-997ec.md)
- [subscript(_:)](swift/contiguousarray/subscript(_:)-9rwz8.md)

### Type Aliases

- [ContiguousArray.Iterator](swift/contiguousarray/iterator.md)
- [ContiguousArray.SubSequence](swift/contiguousarray/subsequence.md)