1
存储响应所以我有这样的服务在Angular2Angular 2 HTTP。在阵列
fetchData(){
return this.http.get('https://ng-workout.firebaseio.com/Workouts/.json').map(
(res) => res.json()
);
}
然后将此组件
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,当我控制台登录“this.workouts”则返回0,一个空阵列。不应该有json文件中的所有记录吗?
好的,但是如果我想在另一个页面上使用锻炼数组,每当我想从数组中获取信息时,我都会调用该订阅? – raulnoob
也许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。 –