Angular 2 - forkJoin不能绑定正确的黑客

Question

我正在尝试一起执行多个Ajax调用。 我找不出这些线路有什么问题。好像订阅功能的第二输入作为处理组[]，而不是授权[]

Observable.forkJoin(
      [this.userService.getAllGroups(),this.userService.getAllAuthorizations()] 
     ) 
     .subscribe(
      ([groups,authorizations]) => { 
       this.groups = groups; 
       this.authorizations = authorizations; //error: Type 'Group[]' is not assignable to type 'Authorization[]' 
       this.loaderService.hideLoader(); 
      }, 
      (err)=>{ 
       this.loaderService.hideLoader(); 
      } 
     ); 

接口包括：

(method) UserService.getAllGroups(): Observable<Group[]> 
(method) UserService.getAllAuthorizations(): Observable<Authorization[]> 

任何人都可以帮助我了解什么是问题呢？

Answer 1

试试这样说：

Observable.forkJoin<Group[], Authorization[]>(
     this.userService.getAllGroups(), 
     this.userService.getAllAuthorizations() 
    ).subscribe(results => { 
     this.groups = results[0]; 
     this.authorizations = results[1]; 
    ); 

或

Observable.forkJoin<Group[], Authorization[]>(
     this.userService.getAllGroups(), 
     this.userService.getAllAuthorizations() 
    ).subscribe((groups, authorizations) => { 
     this.groups = groups; 
     this.authorizations = authorizations; 
    );