Contents

isSuperset(of:)

Returns a Boolean value that indicates whether the set is a superset of the given sequence.

Declaration

func isSuperset<S>(of possibleSubset: S) -> Bool where Element == S.Element, S : Sequence

Parameters

  • possibleSubset:

    A sequence of elements. possibleSubset must be finite.

Return Value

true if the set is a superset of possibleSubset; otherwise, false.

Discussion

Set A is a superset of another set B if every member of B is also a member of A.

let employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"]
let attendees = ["Alicia", "Bethany", "Diana"]
print(employees.isSuperset(of: attendees))
// Prints "true"

See Also

Comparing Sets