實例方法
append(_:)
使用指定元素附加發布者的輸出。
聲明
func append(_ elements: Self.Output...) -> Publishers.Concatenate<Self, Publishers.Sequence<[Self.Output], Self.Failure>>
返回值
在此發布者的元素之後附加指定元素的發布者。
參數
elements
在此發布者的元素之後發布的元素。
詳述
當您需要在發布者的輸出之後添加特定元素時,請使用 Publisher/append(_:)-1qb8d
。
在下麵的示例中,Publisher/append(_:)-1qb8d
運算符在重新發布 dataElements
中的所有元素後發布提供的元素:
let dataElements = (0...10)
cancellable = dataElements.publisher
.append(0, 1, 255)
.sink { print("\($0)", terminator: " ") }
// Prints: "0 1 2 3 4 5 6 7 8 9 10 0 1 255"
可用版本
iOS 13.0+, iPadOS 13.0+, macOS 10.15+, Mac Catalyst 13.0+, tvOS 13.0+, watchOS 6.0+
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注:本文由純淨天空篩選整理自apple.com大神的英文原創作品 Optional.Publisher append(_:)。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。