1
存儲響應所以我有這樣的服務在Angular2Angular 2 HTTP。在陣列
fetchData(){
return this.http.get('https://ng-workout.firebaseio.com/Workouts/.json').map(
(res) => res.json()
);
}
然後將此組件
export class HomeComponent {
workouts = [];
constructor(private dataService: DataService){
}
ngOnInit(){
this.dataService.fetchData().subscribe(
data=> this.workouts =data
);
console.log(this.workouts);
}
}
所以事情是,當我控制檯登錄「this.workouts」則返回0,一個空陣列。不應該有json文件中的所有記錄嗎?
好的,但是如果我想在另一個頁面上使用鍛鍊數組,每當我想從數組中獲取信息時,我都會調用該訂閱? – raulnoob
也許http://stackoverflow.com/questions/36271899/what-is-the-correct-way-to-share-the-result-of-an-angular-2-http-network-call-in/36291681# 36291681是你想要的。 –