angular-signals

Develops Angular v20+ apps using signal(), computed(), linkedSignal() and effect() for state management.

1|Updated Oct 12, 2022

Search Tags:#frontend #angular #signals #effect #computed #linkedSignal #reactive-state

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npx skills add https://github.com/plastikaweb/plastikspace --skill angular-signals-plastikaweb

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: angular-signals
Source: https://github.com/plastikaweb/plastikspace/tree/main/.agents/skills/angular-signals
Command: npx skills add https://github.com/plastikaweb/plastikspace --skill angular-signals-plastikaweb

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Angular signals provide a lightweight, synchronous approach to state management, replacing verbose Observable/BehaviorSubject patterns and reducing boilerplate.

Core Features & Use Cases

Writable state with signal()
Derived state with computed()
Dependent state with linkedSignal()
Side effects with effect()
RxJS interop via toSignal/toObservable (optional)

Quick Start

Create a writable signal named count initialized to 0 and a derived signal named double that automatically reflects count * 2.

Frequently Asked Questions about angular-signals

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I replace BehaviorSubject with Angular signals for component state?▼

You can replace BehaviorSubject with Angular signals by using the writable signal() API for synchronous state management. This reduces boilerplate and provides a lightweight approach to handling reactive component state.

What is the difference between computed and linkedSignal in Angular?▼

The computed() function creates derived state that automatically updates when its dependencies change. linkedSignal() manages dependent state, allowing you to link signals together for more complex reactive state scenarios across your application.

How do I trigger side effects when an Angular signal changes?▼

You trigger side effects in Angular signals by using the effect() API. This allows you to execute synchronous logic whenever the value of a dependent signal changes, replacing traditional Observable subscription side effects.

Do I need Angular v20 to use signal-based state management?▼

Yes, signal-based state management using built-in APIs like signal(), computed(), linkedSignal(), and effect() requires Angular v20+. These APIs are imported directly from @angular/core to manage reactive state.

Can I convert RxJS Observables to Angular signals?▼

Yes, Angular signals support RxJS interop via the optional toSignal and toObservable functions. This allows you to bridge traditional Observable workflows with the new synchronous signal-based state management approach.

Best way to create derived state in Angular without manual subscriptions?▼

The best way to create derived state without manual subscriptions is using the computed() function from Angular signals. It automatically tracks dependencies and recalculates synchronously whenever an underlying writable signal changes.