Effective Signals in Angular 19 and above: Rules and Helpers
summary
Demos show a searchable “desserts” app built with Signals, computed signals deriving filtered results, and the new resource API loading data with built‑in switchMap semantics and an abort signal to avoid race conditions; linked signals provide a writable working copy for input binding. Rule claims: derive state via computed/resource to prevent writes and inconsistencies, and avoid using effects to trigger business logic (effects stay for rendering/toasts/console). Reactive helpers like rx method and ngrx signal store streamline this and work as shown.
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chapters (7)
- 0:00Introduction to signals
- 2:05Computed signals
- 7:55Resource API
- 15:43Linked signals
- 17:18Effects and reactive helpers
- 25:45Reactive methods
- 30:52Conclusion and wrap-up
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