angular-signals

Implement signal-based reactive state management in Angular v20+.

Updated Feb 4, 2026

Search Tags:#typescript #state management #angular #signals #reactive programming #rxjs

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npx skills add https://github.com/quantruong158/angular-chat-template --skill angular-signals-quantruong158

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Please help me install this Agent Skill.
Skill: angular-signals
Source: https://github.com/quantruong158/angular-chat-template/tree/main/.opencode/skills/angular-signals
Command: npx skills add https://github.com/quantruong158/angular-chat-template --skill angular-signals-quantruong158

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers implement and understand Angular's modern, signal-based reactive state management, moving away from RxJS for simpler, more performant state updates.

Core Features & Use Cases

Signal Primitives: Learn to use signal(), computed(), linkedSignal(), and effect() for managing state.
RxJS Interop: Seamlessly convert between Observables and Signals using toSignal() and toObservable().
Use Case: Refactor an existing Angular component that heavily relies on BehaviorSubject to use signals for improved performance and simpler code, especially for UI state.

Quick Start

Implement a writable signal named 'counter' initialized to 0 and demonstrate updating its value.

Frequently Asked Questions about angular-signals

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

FAQPage Schema

How do I migrate Angular state management from BehaviorSubject to signals?▼

To migrate Angular state management from BehaviorSubject to signals, you refactor writable state using signal() and derive values with computed(). This approach replaces RxJS streams for simpler, more performant UI state updates.

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

In Angular signals, computed() creates a read-only signal derived from other signals, while linkedSignal() manages state transitions by linking to new sources. Both handle reactive data flow without manual subscription management.

Can I use RxJS Observables and Angular signals in the same component?▼

Yes, you can use RxJS Observables and Angular signals together using interop functions. The toSignal() function converts Observables to signals, and toObservable() converts signals back to streams for seamless reactive integration.

When should I use effect() for reactive state management in Angular?▼

Use the effect() function in Angular signals for side effects that need to run when signal values change, such as logging or syncing data. It executes automatically whenever its dependent signals are updated.

How do I create and update a writable signal in Angular?▼

To create a writable signal in Angular, call signal() with an initial value like signal(0). Update the value using the set() method to replace it, or update() to modify it based on its current state.

Does Angular v20 support signal-based state management natively?▼

Yes, Angular v20+ supports signal-based state management natively, providing core APIs like signal(), computed(), and effect(). This built-in support enables performant fine-grained reactivity without requiring external state management libraries.