异步打字稿函数返回jQuery的承诺 [英] Async TypeScript function return jQuery promise

问题描述

我试图建立一个MVC像打字稿控制器和我有困难，让我的异步方法返回一个延迟的承诺。

I'm trying to build an MVC like controller in TypeScript and I'm having difficulty getting my async method to return a deferred promise.

下面是我的函数签名：

static async GetMatches(input: string, loc?: LatLng):JQueryPromise<any> {

编译器告诉我一个'JQueryPromise'不是一个有效的异步函数的返回类型。

The compiler tells me that a 'JQueryPromise' is not a valid async function return type.

我本来以为这样的事情是最常见的用例异步功能，但我找不到任何的例子。

I would have thought that something like this would be the most common use case for an async function but I can't find any examples.

任何帮助吗？

推荐答案

JQueryPromise不满足通过异步/的await，他们应该inplement以下接口作出的承诺的要求：

JQueryPromise does not satisfy the requirements for the promises made by async/await, they should inplement the following interfaces:

interface IPromiseConstructor<T> {  
    new (init: (resolve: (value: T | IPromise<T>) => void, reject: (reason: any) => void) => void): IPromise<T>;  
}  

interface IPromise<T> {  
    then<TResult>(onfulfilled: (value: T) => TResult | IPromise<TResult>, onrejected: (reason: any) => TResult | IPromise<TResult>): IPromise<TResult>;  
}

有关详细信息，在这里见第4节承诺：链接

For more details see section 4 Promise here: link

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