實例方法
remove(_:)
從集合中移除指定的元素。
聲明
@discardableResult mutating func remove(_ member: Element) -> Element?
當
Element
符合 Hashable
時可用。返回值
member
參數的值(如果它是集合的成員);否則,nil
。
參數
member
要從集合中移除的元素。
詳述
此示例從一組成分中刪除元素 "sugar"
。
var ingredients: Set = ["cocoa beans", "sugar", "cocoa butter", "salt"]
let toRemove = "sugar"
if let removed = ingredients.remove(toRemove) {
print("The recipe is now \(removed)-free.")
}
// Prints "The recipe is now sugar-free."
可用版本
iOS 8.0+, iPadOS 8.0+, macOS 10.10+, Mac Catalyst 13.0+, tvOS 9.0+, watchOS 2.0+
相關用法
- Swift Set reduce(_:_:)用法及代碼示例
- Swift Set reduce(into:_:)用法及代碼示例
- Swift Set randomElement(using:)用法及代碼示例
- Swift Set randomElement()用法及代碼示例
- Swift Set subtracting(_:)用法及代碼示例
- Swift Set prefix(upTo:)用法及代碼示例
- Swift Set subscript(_:)用法及代碼示例
- Swift Set update(with:)用法及代碼示例
- Swift Set formIntersection(_:)用法及代碼示例
- Swift Set dropFirst(_:)用法及代碼示例
- Swift Set joined(separator:)用法及代碼示例
- Swift Set min()用法及代碼示例
- Swift Set elementsEqual(_:)用法及代碼示例
- Swift Set init(arrayLiteral:)用法及代碼示例
- Swift Set min(by:)用法及代碼示例
- Swift Set symmetricDifference(_:)用法及代碼示例
- Swift Set joined()用法及代碼示例
- Swift Set isDisjoint(with:)用法及代碼示例
- Swift Set shuffled()用法及代碼示例
- Swift Set contains(_:)用法及代碼示例
- Swift Set isStrictSubset(of:)用法及代碼示例
- Swift Set max(by:)用法及代碼示例
- Swift Set first(where:)用法及代碼示例
- Swift Set intersection(_:)用法及代碼示例
- Swift Set suffix(from:)用法及代碼示例
注:本文由純淨天空篩選整理自apple.com大神的英文原創作品 Set remove(_:)。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。