ComponentStore: Allow combining more than 4 selectors

[jaufgang]

Please support combining of more than 4 selectors

@ngrx/store allows selecting up to 8 pieces of state with with the createSelector function. If Component Store supported 8 as well, it would be a huge improvement.

https://ngrx.io/guide/store/selectors#using-selectors-for-multiple-pieces-of-state

The createSelector function can take up to 8 selector functions for more complete state selections.

Describe any alternatives/workarounds you're currently using

Tediously nested selectors:

this.store
    .select(
      this.store.select(
        this.a$,
        this.b$,
        this.c$,
        this.d$,
        (a, b, c, d) => ({a, b, c, d}),
      ),
      this.store.select(
        this.e$,
        this.f$,
        this.g$,
        this.h$,
        (e, f, g, h) => ({e, f, g, h}),
      ),
      (abcd, efgh) => ({ ...abcd, ...efgh })
    ) //😢

If accepted, I would be willing to submit a PR for this feature

• Yes (Assistance is provided if you need help submitting a pull request)
• No