How can I pass a parameter to a @ngrx/component-store selector?

Question

Is there a way (or is it even appropriate) to pass a parameter to @ngrx/component-store selector? I was excited about component-store because effects and updaters can take an Observable as a parameter. This means that that Observable does not have to be subscribed to in a component. But there is not appeared to be a way to use an Observable as a parameter to a selector.

Answer 1

 selectMovie(movieId: string) {
    return this.select((state) => state.movies.find(m => m.id === movieId));
 }

I still wonder how to pass movieId as an Observable and return values from selector when movieId or state was modified.

Answer 2

Judging by one of the signatures:

  select<R, S1>(
    s1: Observable<S1>,
    projector: (s1: S1) => R,
    config?: SelectConfig
  ): Observable<R>;

I think you can achieve what you're looking for by doing:

select(observable1$, () => {})

You can have use more than one observable, as long as the last arguments are (in this order) either the projectioFn and configObject or only the projectionFn.