angularjs – 如何在rxjs中使用Observable.interval多个http请求(forkjoin)

// interval every 10 seconds
Observable.interval(1000)
  // we probably only need one set of AJAX calls running at a time,// so use switchMap here.
  .switchMap(() =>
    // wait for both of these to complete before emitTing
    Observable.forkJoin(
      // get posts
      this.searchservice.getPosts()
        // if that GET fails handle it somehow (returning an observablE)
        .catch(handlePostsErrors),// get comment in parallel to posts
      this.searchservice.getPostComment(1)
        // if that GET fails,handle it like above
        .catch(handlePostCommentErrors)
    )
  )
  // posts and comment will come through in an array because of forkJoin
  .subscribe(([posts,comment]) => doSomething(posts,comment))