Instance Method (Default implementation)swift 6.0.3Swift

subtracting(_:)

Returns a new set containing the elements of this set that do not occur in the given set.

func subtracting(_ other: Self) -> Self

Parameters

other

A set of the same type as the current set.

Returns

A new set.

In the following example, the nonNeighbors set is made up of the elements of the employees set that are not elements of neighbors:

let employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"]
let neighbors: Set = ["Bethany", "Eric", "Forlani", "Greta"]
let nonNeighbors = employees.subtracting(neighbors)
print(nonNeighbors)
// Prints "["Diana", "Chris", "Alicia"]"