Contents

isSubset(of:)

Returns a Boolean value that indicates whether this set is a subset of the given set.

Declaration

func isSubset(of other: Set<Element>) -> Bool

Parameters

  • other:

    Another set.

Return Value

true if the set is a subset of other; otherwise, false.

Discussion

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

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

See Also

Comparing Sets