Suggest an editImprove this articleRefine the answer for “How can you manage state using services?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)Managing state through services is a simple and powerful way to keep data under control without complex libraries: the service stores variables, provides methods to change them, and gives values to components directly or through a stream. **Key point:** the service becomes a single store and dispatcher, where everything is transparent, reactive, and under control.Shown above the full answer for quick recall.Answer (EN)ImageManaging state through services is a **simple and powerful way to keep data under control** without complex libraries. --- ### What makes a service "manage state": It: - stores variables (for example, `user`, `cart`, `isLoading`) - provides methods to change those variables - gives values to components - directly or through a stream (`BehaviorSubject`) --- ### Example: ```ts @Injectable({ providedIn: 'root' }) export class CartService { private cartItems = new BehaviorSubject<Product[]>([]); cart$ = this.cartItems.asObservable(); add(item: Product) { const current = this.cartItems.value; this.cartItems.next([...current, item]); } clear() { this.cartItems.next([]); } } ``` The component simply subscribes: ```ts this.cartService.cart$.subscribe(items => this.cart = items); ``` --- ### The end result: - Components **don't hold logic and data themselves** - they just display it - All changes go through one central place - State lives on even if the component is destroyed - Subscribers automatically receive updates --- **Conclusion:** The service becomes a **single store and dispatcher**, where everything is transparent, reactive, and under control. For 90% of tasks, that's already enough.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.