收集成功的承诺

任何帮助将不胜感激. 解决方案我现在看到我需要一个新功能: https://gist.github.com/dtartaglia/2b19e59beaf480535596 /**Waits on all provided promises.`any` waits on all provided promises, it rejects only if all of the promises rejected, otherwise it fulfills with values from the fulfilled promises.- Returns: A new promise that resolves once all the provided promises resolve.*/public func any<T>(promises: [Promise<T>]) -> Promise<[T]> { guard !promises.isEmpty else { return Promise<[T]>([]) } return Promise<[T]> { fulfill, reject in var values = [T]() var countdown = promises.count for promise in promises { promise.then { value in values.append(value) } .always { --countdown if countdown == 0 { if values.isEmpty { reject(AnyError.Any) } else { fulfill(values) } } } } }}public enum AnyError: ErrorType { case Any}I'm using PromiseKit 3.0 in Swift and I have an array of promises [Promise<Int>]. I want to gather up all the promises that succeed into a single promise. Promise<[Int]>.Both when and join reject if even one contained promise rejects. According to the docs, I'm supposed to be able to use join and the error will contain an array of the fulfilled values, but in Swift the error contains all the promises that were passed in, not the fulfilled values.Any help would be appreciated. 解决方案 I see now I need a new function:https://gist.github.com/dtartaglia/2b19e59beaf480535596/**Waits on all provided promises.`any` waits on all provided promises, it rejects only if all of the promises rejected, otherwise it fulfills with values from the fulfilled promises.- Returns: A new promise that resolves once all the provided promises resolve.*/public func any<T>(promises: [Promise<T>]) -> Promise<[T]> { guard !promises.isEmpty else { return Promise<[T]>([]) } return Promise<[T]> { fulfill, reject in var values = [T]() var countdown = promises.count for promise in promises { promise.then { value in values.append(value) } .always { --countdown if countdown == 0 { if values.isEmpty { reject(AnyError.Any) } else { fulfill(values) } } } } }}public enum AnyError: ErrorType { case Any} 这篇关于收集成功的承诺的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！