如何修复角度中可观察到的错误

Question

I want to remove the current user that login thats why I used filter to. but I get an error which is:

Type 'Subscription' is missing the following properties from type 'Observable[]>': _isScalar, source, operator, lift, and 6 more.

Here's the code:

@Select(UserPageState.get('collection')) users$: Observable<Array<Partial<User>>>;
async ngOnInit() {
  const USER = this.creds.credentials['id'];
  this.users$.subscribe(param => param.filter(x => x.id !== USER));
  await this.store.dispatch(new UserPageList({ start: 1, length: this.pageSize })).toPromise();
}

HTML

<ag-grid-angular
      style="width: 100%; height: 100%;"
      [class]="(darkMode$ | async) ? 'ag-theme-balham-dark' : 'ag-theme-balham'"
      [gridOptions]="gridOptions"
      [rowData]="users$ | async"
      [columnDefs]="columnDefs"
      [frameworkComponents]="frameworkComponents"
      (gridReady)="onGridReady($event)"
      (firstDataRendered)="onFirstDataRendered($event)"
    >
    </ag-grid-angular>

Answer 1

The issue is in below statement, subscribing to an observable returns an Subscription instance and you are again assigning it to observable.

this.users$ = this.users$.subscribe(param => param.filter(x => x.id !== USER));

Just don't assign it to observable again, it will resolve the issue.

this.users$.subscribe(param => param.filter(x => x.id !== USER));