實例方法
filter(_:)
返回一個數組,該數組按順序包含滿足給定謂詞的序列元素。
聲明
func filter(_ isIncluded: (Self.Element) throws -> Bool) rethrows -> [Self.Element]
返回值
isIncluded
允許的元素數組。
參數
isIncluded
一個閉包,它將序列的一個元素作為其參數,並返回一個布爾值,指示該元素是否應包含在返回的數組中。
詳述
在此示例中,filter(_:)
僅用於包含少於五個字符的名稱。
let cast = ["Vivien", "Marlon", "Kim", "Karl"]
let shortNames = cast.filter { $0.count < 5 }
print(shortNames)
// Prints "["Kim", "Karl"]"
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 UnsafeRawBufferPointer.Iterator first(where:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator forEach(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator flatMap(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator dropFirst(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator max()用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator drop(while:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator min()用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator contains(where:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator contains(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator reduce(into:_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator map(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator sorted(by:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator compactMap(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator prefix(while:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator enumerated()用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator prefix(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator min(by:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator max(by:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator allSatisfy(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator split(maxSplits:omittingEmptySubsequences:whereSeparator:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator split(separator:maxSplits:omittingEmptySubsequences:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator shuffled()用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator suffix(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator lexicographicallyPrecedes(_:)用法及代碼示例
- Swift UnsafeRawBufferPointer.Iterator elementsEqual(_:)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 UnsafeRawBufferPointer.Iterator filter(_:)。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。