angular-signals

To migrate Angular state management to signals, replace imperative Subjects and Observables with signal() for state, computed() for derived state, linkedSignal() for dependent state, and effect() for side effects, reducing boilerplate and enabling fine-grained synchronous reactivity in Angular 20+.

computed() creates derived state from other signals, while linkedSignal() manages dependent state that reacts to changes in upstream signals. Both enable fine-grained reactivity, but linkedSignal() handles more complex dependent state orchestration within Angular components.

Yes, Angular signals work for local component state management in Angular 20+. You can use signal() for state, computed() for derived values, and effect() to run side effects, simplifying reactive UI updates with minimal boilerplate.

The best way to build reactive forms and dashboards using signals is to structure state with signal(), derive values with computed(), manage dependencies with linkedSignal(), and orchestrate side effects with effect(), creating a unified and predictable reactivity model.

No, you do not need RxJS to use signals. Signals provide a synchronous reactivity model using signal(), computed(), linkedSignal(), and effect() that replaces traditional Observables and Subjects, reducing scattered state updates and boilerplate.

You should avoid using Angular signals if your project is not on Angular 20+ or if your application relies heavily on asynchronous data streams that require complex RxJS operators, as signals target fine-grained synchronous reactivity and derived state.