[英]Error when subscribing to time observable in Angular 2
I have a clock on my app that uses an observable
to update every second: 我的应用程序上有一个时钟,该时钟使用
observable
每秒更新一次:
clock.service: clock.service:
import { Injectable } from '@angular/core';
import {Observable} from 'rxjs/observable';
@Injectable()
export class ClockService {
mydate: Date;
constructor() {}
getClock(): Observable<any> {
return new Observable(observer => {
setInterval(()=>{
this.mydate = new Date();
observer.next(this.mydate);
}, 1000);
});
}
}
header.component: header.component:
...
private mydate: Date;
...
constructor(private clockService: ClockService, private alertService: AlertsService) { }
ngOnInit() {
this.mydate = this.clockService.getClock().subscribe(res => this.mydate = res);;
}
I'm getting an error: error TS2322: Type 'Subscription' is not assignable to type 'Date'. Property 'toDateString' is missing in type 'Subscription'
我收到错误消息:
error TS2322: Type 'Subscription' is not assignable to type 'Date'. Property 'toDateString' is missing in type 'Subscription'
error TS2322: Type 'Subscription' is not assignable to type 'Date'. Property 'toDateString' is missing in type 'Subscription'
ngOnInit() {
this.mydate = this.clockService.getClock().subscribe(res => this.mydate = res);;
}
This is wrong. 错了 You're binding
subscription
to Date
, as the error says. 如错误所示,您将
subscription
绑定到Date
。 Change to this: 更改为此:
ngOnInit() {
this.clockService.getClock().subscribe(res => this.mydate = res);;
}
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