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swift-mirror/stdlib/stdlib.docc/Optional.md
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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>
Co-authored-by: Susan Conant <susan_c@apple.com>
2026-04-10 10:04:56 -04:00

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Swift/Optional

Topics

Creating an Optional Value

  • Swift/Optional/some(_:)
  • Swift/Optional/init(_:)-46x3s
  • Swift/Optional/init(_:)-1j774

Creating a Nil Value

  • Swift/Optional/none
  • Swift/Optional/init(nilLiteral:)

Transforming an Optional Value

  • Swift/Optional/map(_:)
  • Swift/Optional/flatMap(_:)

Coalescing Nil Values

  • Swift/??(_:_:)-9xjze
  • Swift/??(_:_:)-1fjjj

Comparing Optional Values

  • Swift/Optional/==(_:_:)-(Wrapped?,Wrapped?)
  • Swift/Optional/==(_:_:)-(_OptionalNilComparisonType,_)
  • Swift/Optional/==(_:_:)-(_,_OptionalNilComparisonType)
  • Swift/Optional/!=(_:_:)-(Self,_)
  • Swift/Optional/!=(_:_:)-(_,Wrapped?)
  • Swift/Optional/!=(_:_:)-(Wrapped?,_)
  • Swift/Optional/~=(_:_:)

Encoding and Decoding

  • Swift/Optional/encode(to:)
  • Swift/Optional/init(from:)

Inspecting an Optional

  • Swift/Optional/hash(into:)
  • Swift/Optional/unsafelyUnwrapped
  • Swift/Optional/debugDescription
  • Swift/Optional/customMirror
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