rxjs mergeMap

[dusty stump]

    this.cartographies$ = this.buildindStoreys$.pipe(
      map((buildindStorey: BuildingStorey[]) => from(buildindStorey)),
      switchMap((val: Observable<BuildingStorey>) => val),
      mergeMap((val: BuildingStorey) => this._cartographyMainService.getCartographies(val.id))
    ).subscribe((r) => console.log('this.cartographies$: ', r));;

result:

this.cartographies$:  (2) [{…}, {…}]
this.cartographies$:  (5) [{…}, {…}, {…}, {…}, {…}]

I get 2 results, I would like to have a single result grouped in a table for example.
I tried with mergeAll or concatAll, without success

i want :

this.cartographies$:  (2) [[{…}, {…}],  [{…}, {…}, {…}, {…}, {…}]]

[hardy ivy]

So your question is: I have an abservable emitting 2 events, and I'd like to have these 2 events in an array? Is that correct?
If so: https://rxjs.dev/api/operators/toArray

[dusty stump]

yeeeah is so easy