A set of the same type as the current set. 現在の集合と同じ型の集合。
Instance Method
インスタンスメソッド
subtract(_:)
Removes the elements of the given set from this set.
与えられた集合の要素をこの集合から除去します。
Availability 有効性
- iOS 13.0+
- iPadOS 13.0+
- macOS 10.15+
- Mac Catalyst 13.0+
- tvOS 13.0+
- watchOS 6.0+
Technology
- Swift
UI
Declaration 宣言
mutating func subtract(_ other: Self)Parameters パラメータ
other
Discussion 議論
In the following example, the elements of the employees set that are also members of the neighbors set are removed. In particular, the names "Bethany" and "Eric" are removed from employees.
次の例において、employees集合の要素でまたneighbors集合のメンバでもあるものは除去されます。個別的には、"Bethany"と"Eric"がemployeesから除去されます。
var employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"]
let neighbors: Set = ["Bethany", "Eric", "Forlani", "Greta"]
employees.subtract(neighbors)
print(employees)
// Prints "["Diana", "Chris", "Alicia"]"