RegexPattern.Options.isStrictSuperset(of:)

Set *A* is a strict superset of another set *B* if every member of *B* is also a member of *A* and *A* contains at least one element that is *not* a member of *B*.

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

// A set is never a strict superset of itself: print(employees.isStrictSuperset(of: employees)) // Prints "false"

• Parameter other: A set of the same type as the current set.
• Returns: true if the set is a strict superset of other; otherwise, false.