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Graham Lee 9ead8781d4 Add .docc catalog to publish stdlib docs on swift.org

Co-authored-by: Alex Martini <amartini@apple.com>
Co-authored-by: Graham Lee <glee23@apple.com>
Co-authored-by: Chris Adamson <cadamson@apple.com>
Co-authored-by: Kirby Turner <kirby_turner@apple.com>
Co-authored-by: Paris Pinkney <ppinkney@apple.com>
Co-authored-by: Dave Spector <dspector@apple.com>
Co-authored-by: Sofia Rodriguez Morales <sofia_rodriguez@apple.com>
Co-authored-by: Ethan Kusters <ekusters@apple.com>
Co-authored-by: Goli Mohammadi <g_mohammadi@apple.com>
Co-authored-by: Adora Vaz <a_vaz@apple.com>
Co-authored-by: David Rönnqvist <ronnqvist@apple.com>
Co-authored-by: Nate Merseth Cook <natecook@apple.com>
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2026-04-10 10:04:56 -04:00

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`Swift/Set`

Topics

Creating a Set

In addition to using an array literal, you can also create a set using these initializers.

Swift/Set/init()
Swift/Set/init(minimumCapacity:)
Swift/Set/init(_:)-9cgks
Swift/Set/init(_:)-15hys

Inspecting a Set

Swift/Set/isEmpty-207wt
Swift/Set/count-8ze93
Swift/Set/capacity

Testing for Membership

Swift/Set/contains(_:)

Adding Elements

Swift/Set/insert(_:)-nads
Swift/Set/insert(_:)-yar4
Swift/Set/update(with:)-2n6tk
Swift/Set/update(with:)-7r2g
Swift/Set/reserveCapacity(_:)

Removing Elements

Swift/Set/filter(_:)
Swift/Set/remove(_:)-8p2tv
Swift/Set/remove(_:)-4d3i1
Swift/Set/removeFirst()
Swift/Set/remove(at:)
Swift/Set/removeAll(keepingCapacity:)

Combining Sets

Swift/Set/union(_:)
Swift/Set/formUnion(_:)
Swift/Set/intersection(_:)-1zh8f
Swift/Set/intersection(_:)-6uts9
Swift/Set/formIntersection(_:)
Swift/Set/symmetricDifference(_:)
Swift/Set/formSymmetricDifference(_:)-22p0m
Swift/Set/formSymmetricDifference(_:)-5u38b
Swift/Set/subtract(_:)-8gc48
Swift/Set/subtract(_:)-7cd3y
Swift/Set/subtracting(_:)-3n4lc
Swift/Set/subtracting(_:)-2qge3

Comparing Sets

Swift/Set/==(_:_:)
Swift/Set/!=(_:_:)
Swift/Set/isSubset(of:)-1d7pp
Swift/Set/isSubset(of:)-6qyo5
Swift/Set/isStrictSubset(of:)-96vc3
Swift/Set/isStrictSubset(of:)-787sx
Swift/Set/isSuperset(of:)-9iz62
Swift/Set/isSuperset(of:)-90hri
Swift/Set/isStrictSuperset(of:)-4d27m
Swift/Set/isStrictSuperset(of:)-58ejg
Swift/Set/isDisjoint(with:)-8ngmk
Swift/Set/isDisjoint(with:)-2onid

Accessing Individual Elements

Swift/Set/first
Swift/Set/randomElement()
Swift/Set/randomElement(using:)

Finding Elements

Swift/Set/subscript(_:)
Swift/Set/contains(where:)
Swift/Set/allSatisfy(_:)
Swift/Set/first(where:)
Swift/Set/firstIndex(of:)
Swift/Set/firstIndex(where:)
Swift/Set/index(of:)
Swift/Set/min()
Swift/Set/min(by:)
Swift/Set/max()
Swift/Set/max(by:)

Transforming a Set

Swift/Set/compactMap(_:)
Swift/Set/flatMap(_:)-i3my
Swift/Set/flatMap(_:)-6chuh
Swift/Set/reduce(_:_:)
Swift/Set/reduce(into:_:)
Swift/Set/sorted()
Swift/Set/sorted(by:)
Swift/Set/shuffled()
Swift/Set/shuffled(using:)
Swift/Set/lazy

Iterating over a Set

Swift/Set/enumerated()
Swift/Set/forEach(_:)
Swift/Set/makeIterator()
Swift/Set/underestimatedCount-4ggqw

Performing Collection Operations

doc:order-dependent-operations-on-set

Encoding and Decoding

Swift/Set/encode(to:)
Swift/Set/init(from:)

Describing a Set

Swift/Set/hash(into:)
Swift/Set/description
Swift/Set/debugDescription
Swift/Set/customMirror

Supporting Types

Swift/Set/Index
Swift/Set/Iterator

Infrequently Used Functionality

Swift/Set/init(arrayLiteral:)-3uja4
Swift/Set/withContiguousStorageIfAvailable(_:)

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Swift/Set