没有 HTML 的两个组件之间的角度共享

Question

I HAVE, 1.topbar folder - contains html(1) and ts(1) for topbar 2.page folder - contains html(2) and ts(2) for page

Now i have a BUTTON in html(1)

<button (click)="refresh()" class="navbar-btn btn btn-success btn-md refresh">
    <span class="glyphicon glyphicon-refresh"></span> Refresh
</button>

Now i have a function in ts(1)

refresh()
{
console.log("this is topbar html and ts");
}

NOW i have a function in html(2)

Here ,i dont want to do anything!

NOW,i have a function in ts(2)

refreshEvent(){
console.log("i want use this function in html(1) BUT HOW??")
}

So,As I click button it should call refreshEvent()

Answer 1

You can use Subject from rxjs,

import { Observable, Subject } from 'rxjs';

@Injectable({ providedIn: 'root' })
export class MyService {
    private subject = new Subject<any>();
    refresh() {
        this.subject.next();
    }
    onRefresh(): Observable<any> {
        return this.subject.asObservable();
    }
}

Component B:

  constractor(private myService: MyService){}
  this.$subscription = this.myService.onRefresh().subscribe(() => this.refreshEvent() );
  ngOnDestroy() {
        this.$subscription .unsubscribe();
    }

Component A:

constractor(private myService: MyService){}

refresh()
{
  //console.log("this is topbar html and ts");
 this.myService.refresh();
}

If they have a child-parent relationship you can use output event, see the documentation for more info: https://angular.io/guide/component-interaction