Suggest an editImprove this articleRefine the answer for “What is state management (state management) in Angular?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**State management** in Angular is a way to store, track, and update data used across different parts of the application. **Key point:** state management is not just about where to store variables, but about making the whole application aware of what is happening and react predictably.Shown above the full answer for quick recall.Answer (EN)Image**State management** in Angular is a way to **store, track, and update data** that is used across different parts of the application. --- ### Why it's needed: - Components often **need to know about the same data** (for example, authentication, the cart, settings). - In large applications without centralized management, everything turns into chaos: data gets lost, updated in the wrong place. --- ### How you can manage state: 1. **Simply through services** - The most basic approach: create a `DataService` with variables and methods, shared between components through DI. 2. **RxJS and BehaviorSubject** - A more reactive approach: subscriptions to data streams, automatic updates for everyone who is listening. - Example: `cart$ = new BehaviorSubject([]);` 3. **NgRx, Akita, NGXS** - Libraries for **centralized** state management: like Redux, but for Angular. - The approach: everything is stored in a single store, all changes go through actions and reducers. --- ### What counts as "state": - The user and their permissions - Settings - Data loaded from the server - Temporary flags (loading, errors, and so on) --- **Conclusion:** State management is **not just about where to store variables**, but about making the whole application aware of what is happening, and having it react predictably.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.