Foundation / NSKeyValueSetMutationKind / NSKeyValueSetMutationKind.union

NSKeyValueSetMutationKind.union

Declaration

case union

FoundationCase

iOS 2.0+iPadOS 2.0+Mac Catalyst 13.0+macOS 10.0+tvOS 9.0+visionOS 1.0+watchOS 2.0+

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