Skip to main content

Apple Developer Docs

Foundation / PredicateExpressions / PredicateExpressions.OptionalFlatMap / variable

variable

Declaration

let variable: PredicateExpressions.Variable<Wrapped>

Open on developer.apple.com

FoundationInstance Property

iOS 17.0+iPadOS 17.0+Mac Catalyst 17.0+macOS 14.0+tvOS 17.0+visionOS 1.0+watchOS 10.0+

Built on 2026-06-12 · Snapshot snapshot-20260612-beta.1 (macOS 27.0) · Commit fba13e1 · by @g-cqd · based on Apple Developer Documentation