title: map vs switchMap in RxJS
body: <p>I read the documentation of <a href="https://rxjs.dev/api/operators/switchMap" rel="noreferrer">switchMap</a> and <a href="https://rxjs.dev/api/operators/map" rel="noreferrer">map</a>, but I still don't completely understand the difference. Are there some cases where it does not make a difference at all?</p>