angular-signals

Review Angular Signals code for effect and computed usage.

9|Updated Jan 18, 2025

Search Tags:#state management #angular #signals #reactive programming #effects #computed

Ready to run

npx skills add https://github.com/TheNordicOne/ngx-formbar --skill angular-signals-thenordicone

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: angular-signals
Source: https://github.com/TheNordicOne/ngx-formbar/tree/main/.claude/skills/angular-signals
Command: npx skills add https://github.com/TheNordicOne/ngx-formbar --skill angular-signals-thenordicone

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It helps prevent common Angular Signals misuse that causes infinite loops, circular dependencies, and subtle state bugs, especially when combining signals, computed values, and effects.

Core Features & Use Cases

Signal usage guidance: Apply signal() for local mutable state and use computed() for derived values that depend on other signals.
Effect safety rules: Ensure effect() is used only for side effects and never to update signal state.
Loop prevention patterns: Recommend using computed() for state derivations instead of calling set() or update() inside an effect.

Quick Start

Ask an AI to review your Angular component or service code for improper effect() usage by checking whether any signal updates occur inside effects and whether derived values are implemented with computed().

Frequently Asked Questions about angular-signals

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

FAQPage Schema

What is the best way to prevent infinite loops and circular dependencies when using Angular Signals?▼

To prevent infinite loops when using Angular Signals, ensure signal updates never occur inside effect() blocks and use computed() for derived values instead of calling set() or update() within effects.

How do I manage derived state in Angular Signals without causing circular dependencies?▼

Manage derived state in Angular Signals by using computed() to calculate values based on other signals, keeping side effects strictly separated from signal state updates to avoid circular dependencies.

When should I use computed() versus effect() for reactive programming in Angular?▼

Use computed() for deriving values from other signals and use effect() only for triggering side effects. Never update signal state inside an effect to maintain strict separation and prevent reactive programming bugs.

Can I update a signal value inside an effect() in Angular components?▼

No, you should not update a signal value inside an effect() in Angular components or services. Signal updates inside effects cause infinite loops; use computed() for state derivations instead.

How do I review Angular code for improper effect() usage and signal state bugs?▼

Review Angular code for improper effect() usage by checking whether any signal.set or signal.update calls occur inside effects and verifying that derived values are implemented using computed().