Architecting Angular Applications with Redux, RxJS, and NgRx

Register our reducers

We do need to add and implement all the files in bold, but we also need to update the counter.module.ts file so we are able to handle the added state:

// counter/counter.module.tsimport { NgModule } from "@angular/core";import { CommonModule } from "@angular/common";import { CounterComponent } from "./counter.component";import { StoreModule, ActionReducerMap } from "@ngrx/store";import { counterReducer } from "./counter.reducer";import { CounterListComponent } from "./counter-list/counter-list.component";import { Counter } from "./counter-list/counter.model";import { counterListReducer } from "./counter-list/counter-list.reducer";import { FormsModule } from "@angular/forms";export interface CounterState {  data: number; ...