import { Headers, Http } from '@angular/http';
@Injectable()
export class PublisherService{
private publishersUrl = 'app/publisher';
constructor(private http: Http) { }
getPublishers(): Promise<Publisher[]>{
return this.http.get(this.publishersUrl)
.toPromise()
.then(response => response.json().data)
.catch(this.handleError);
}
}
我收到此错误:住宅 'toPromise' 上键入 '可观测<Response>' 不存在
Property 'toPromise' does not exist on type 'Observable'.any
通常通过更新您的打字稿的版本解决这个问题,它不是观测转换成承诺一个好主意。 Observable is more more powerful – Dinistro