Manage Angular UI state with Signals, computed signals, and effects.
npx skills add https://github.com/cristal-ise/cristal-ise --skill reactive-state
Please help me install this Agent Skill. Skill: reactive-state Source: https://github.com/cristal-ise/cristal-ise/tree/main/vibeui/.agents/skills/reactive-state Command: npx skills add https://github.com/cristal-ise/cristal-ise --skill reactive-state
Guidelines for managing state using Angular Signals, computed signals, effects, services, dependency injection, and modern reactive patterns.
Create a small Angular component using signal() for local state, computed() for derived state, and effect() to manage side effects.
High-intent search queries and answers about installing and using this skill.
Manage local Angular component state by initializing the signal() function with a default value. This creates a reactive primitive that updates the UI automatically when its value changes.
Calculate derived state in Angular by using the computed() function. It memoizes the computation based on dependent signals, ensuring efficient updates only when underlying signal values change.
Use effects in Angular reactive programming sparingly, specifically for handling side effects like logging or data synchronization. They execute when their dependent signals change, but should not be overused.
Inject services into Angular components by using the inject() function within your component or service properties. This replaces constructor injection and aligns with modern Angular dependency injection patterns.
Yes, you can use Angular signals for singleton service state management. Define your services with providedIn: 'root' and use signal() internally to maintain reactive state across the application.
Angular signal state management works natively without external state libraries. You can handle component-local state, derived state, and side effects entirely using built-in Angular Signals APIs and dependency injection.
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