NgRx ngOnInit

books.component.ts

ngOnInit(): void{
  this.loadBooks();
  this.store.select(Selector.books).subscribe(books => this.books$ = books);
  this.store.select(Selector.selectedBook).subscribe(book => {
    this.selectedBook = book;
  });
  this.store.select(Selector.showDetail).subscribe(showDetail => {
    this.showDetail = showDetail;
    showDetail ? this.showPopup() : this.hidePopup();
  });
}