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削除します。
Availability
- iOS 8.0+
- iPadOS 8.0+
- macOS 10.10+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
- Xcode 10.0+
Technology
- Swift Standard Library Swift標準ライブラリ
Declaration 宣言
mutating func subtract(_ other: Self)Parameters パラメータ
other
Discussion 解説
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削除されます。個別的には、"Bethany"と"Eric"がemployeesから削除されます。
var employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"]
let neighbors: Set = ["Bethany", "Eric", "Forlani", "Greta"]
employees.subtract(neighbors)
print(employees)
// Prints "["Diana", "Chris", "Alicia"]"