Compares the receiving set to another set.
- iOS 2.0+
- macOS 10.0+
- tvOS 9.0+
- watchOS 2.0+
The set with which to compare the receiving set.
YES if the contents of
other are equal to the contents of the receiving set, otherwise
Two sets have equal contents if they each have the same number of members and if each member of one set is present in the other. Object equality is tested using isEqual:.