Returns a Boolean value that indicates whether every element in the receiving hash table is also present in another given hash table.
- iOS 6.0+
- macOS 10.5+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The hash table with which to compare the receiving hash table.
YES if every element in the receiving hash table is also present in
The equality test used for members depends on the personality option selected. For instance, choosing the
NSPointer option will use
is to determine equality. See
NSPointer for more information on personality options and their corresponding equality tests.