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emiljuchnikowski
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angular-patterns

Guide Angular 20 developers to implement standalone components, signals, and control flow syntax.

1|Updated Sep 15, 2023
Search Tags:#angular#migration#patterns#signals#best-practices#dependency-injection#standalone
One-click install
npx skills add https://github.com/emiljuchnikowski/smartsoft001 --skill angular-patterns-emiljuchnikowski
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: angular-patterns
Source: https://github.com/emiljuchnikowski/smartsoft001/tree/main/.claude/skills/angular-patterns
Command: npx skills add https://github.com/emiljuchnikowski/smartsoft001 --skill angular-patterns-emiljuchnikowski

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Angular 20 modern patterns provide a structured approach to building scalable, maintainable applications by standardizing component architecture, state handling, and template practices.

Core Features & Use Cases

  • Control Flow Syntax ( @if, @for, @switch ) to simplify templates and reduce boilerplate
  • Signals and Dependency Injection via inject() to manage local state and dependencies cleanly
  • Standalone Components and migration guidance to enable gradual upgrades and library sharing
  • Performance guidelines and consistent import order to improve reliability and maintainability

Quick Start

Refactor a component to use @if/@for with signals-based state and inject() DI where appropriate.

Frequently Asked Questions about angular-patterns

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

FAQPage Schema
How do I migrate Angular templates to the new control flow syntax?▼

Migrate Angular templates by replacing structural directives like *ngIf and *ngFor with the new @if, @for, and @switch syntax to simplify templates and reduce boilerplate.

What is the best way to manage local state in Angular 20 components?▼

The best way to manage local state in Angular 20 is using signals. Signals provide a structured approach to state handling, allowing you to track changes cleanly and optimize change detection without manual lifecycle subscriptions.

How do I use inject() for dependency injection in standalone components?▼

Use the inject() function instead of constructor parameters to manage dependencies cleanly in standalone components. This modern dependency injection pattern simplifies inheritance and improves reliability when refactoring legacy components.

Can I gradually migrate legacy Angular components to standalone components?▼

Yes, you can gradually migrate legacy Angular components to standalone components. Migration guidance allows for incremental upgrades, enabling library sharing and reducing the risk of breaking existing module-based architectures.

Does Angular 20 support input(), output(), and model() functions for component communication?▼

Yes, Angular 20 supports input(), output(), and model() functions. These signal-based functions replace traditional decorators, providing a cleaner API for component communication and state binding in modern architectures.

When should I not use signals for state management in Angular?▼

Avoid using signals for state management when migrating complex, deeply nested legacy components that heavily rely on Rx observables, unless you are prepared to refactor change detection comprehensively. Evaluate performance guidelines before converting critical paths.

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