typescript - Angular 2 typescript 中json对象列表的返回类型是什么？

Question

这里 getFiles() 的返回类型可能是什么(除了任何)具体的返回类型可能是什么？

   @Injectable()
    export class NodeService {

        constructor(private http: Http) {}

        getFiles() {
            return this.http.get('./resources/data/cars-medium.json')
                        .map((res: any) => res.json().data);
        }
    }

汽车-medium.json

{
    "data":[
        {"vin":"a1653d4d","brand":"VW","year":1998,"color":"White"},
        {"vin":"ddeb9b10","brand":"Mercedes","year":1985,"color":"Green"},
        {"vin":"d8ebe413","brand":"Jaguar","year":1979,"color":"Silver"},
        {"vin":"aab227b7","brand":"Audi","year":1970,"color":"Black"},
        {"vin":"631f7412","brand":"Volvo","year":1992,"color":"Red"},
        {"vin":"7d2d22b0","brand":"VW","year":1993,"color":"Maroon"}
           ]
}

Answer 1

getFiles():Observable<Object[]> {

如果你有这样的界面

interface Car {
  vin:string;
  brand: string;
  year:number;
  color:string;
}

你也可以用

getFiles():Observable<Car[]> {