This story was originally published on HackerNoon at: https://hackernoon.com/from-rxjs-to-signals-the-future-of-state-management-in-angular.
Angular 19+ makes Signals the default for local state. This guide shows how to balance Signals, RxJS, and NgRx and refactor legacy patterns safely.
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Angular Signals are not a replacement for RxJS or NgRx. Use Signals for local, synchronous UI state, RxJS for async and time-based workflows, and NgRx for shared, long-lived domain state. Migrate incrementally by moving component-level BehaviorSubject stores to Signals while keeping HTTP, debouncing, and side effects in RxJS.

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