您可以执行以下操作:

this.client["pendingRequests"].forEach(request => {
   request.abort();
});

我必须做["pendingRequests"]，因为我正在使用TypeScript，并且数组似乎不在定义之内.

I am having to do ["pendingRequests"] as I'm using TypeScript and the array does not seem to be within the definition.

注意:我还针对每个自动完成功能使用了范围限定的HttpClient，因此，当它取消所有先前的请求时，不会意外取消该应用程序正在请求的其他内容.

Note: I am also using a scoped HttpClient per autocomplete, so that when it cancels all previous requests it will not accidentally cancel something else that the app is requesting.