实例方法
remove
removeAll(where:)
删除所有满足给定谓词的元素。
声明
mutating func removeAll(where shouldBeRemoved: (Self.Element) throws -> Bool) rethrows
参数
shouldBeRemoved
一个闭包,它将序列的一个元素作为其参数,并返回一个布尔值,指示是否应从集合中删除该元素。
详述
使用此方法删除集合中满足特定条件的每个元素。保留其余元素的顺序。此示例从字符串中删除所有元音:
var phrase = "The rain in Spain stays mainly in the plain."
let vowels: Set<Character> = ["a", "e", "i", "o", "u"]
phrase.removeAll(where: { vowels.contains($0) })
// phrase == "Th rn n Spn stys mnly n th pln."
可用版本
iOS 8.0+, iPadOS 8.0+, macOS 10.10+, Mac Catalyst 13.0+, tvOS 9.0+, watchOS 2.0+
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注:本文由纯净天空筛选整理自apple.com大神的英文原创作品 Substring.UnicodeScalarView removeAll(where:)。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。