title: How to subscribe to observable multiple times?
body: <p>I have a table that needs to be refreshed each time a user delete a row, or edit data with a designate function called reloadUsersData();
  I've created a BehaviorSubject that gets the table's data from a service - once the table is loaded - but i'm not sure that my implementation of reloadUsersData is good since i repeat the same code and resubscribe to the same observable ....</p>
  <pre><code>    export class TableBasicExample implements OnDestroy, OnInit{
             dataSource$ = new BehaviorSubject&lt;any&gt;([]);
             private subs: Subscription[] = [];
  
             constructor(private apiService: ApiService) {}
                                  
      
       ngOnInit() {
  
      this.subs.push(
        this.apiService.getUsers().subscribe((res: any) =&gt; {
    
          this.dataSource$.next(res);
  
        }));
       }
  
       reloadUsersData(){
        // how can i subscribe to the same api more effectively ?
        this.subs.push(
        this.apiService.getUsers().subscribe((res: any) =&gt; {
    
          this.dataSource$.next(res);
  
        }));
  
       }
  
       ngOnDestroy(): void {
         this.subs.forEach((us) =&gt; us.unsubscribe());
       }
  
    }
  </code></pre>