Instance Method

isSubsetOfSet:

Returns a Boolean value that indicates whether every object in the receiving set is also present in another given set.

Declaration

- (BOOL)isSubsetOfSet:(NSSet<ObjectType> *)otherSet;

Parameters

otherSet

The set with which to compare the receiving set.

Return Value

YES if every object in the receiving set is also present in otherSet, otherwise NO.

Discussion

Object equality is tested using isEqual:.

See Also

Comparing Sets

- intersectsSet:

Returns a Boolean value that indicates whether at least one object in the receiving set is also present in another given set.

- isEqualToSet:

Compares the receiving set to another set.

- valueForKey:

Return a set containing the results of invoking valueForKey: on each of the receiving set's members.

- setValue:forKey:

Invokes setValue:forKey: on each of the set’s members.