ngrx - chain two store.select slices

Question

In my Todo Cmp I have this code

this.todoListGroup$ = this.ngrx.select(fromRoot.getTodos)
    .flatMap((todos: Todo[]) => {
        console.log(todos)
                


        

Answer 1

This is an approach for RxJs v6+ using the combineLatest operator.

First import the operators and Observable function like this:

import { Observable, combineLatest } from 'rxjs';
import { tap } from 'rxjs/operators';

Then you can use them like this:

combineLatest([
  this.store.pipe(select('users', 'userList')),
  this.store.pipe(select('users', 'accountsList')),
]).pipe(tap(([userList, accountsList]) => console.log(userList, accountsList)))