angular-directives

Create a reusable Angular directive by encapsulating DOM behavior using core APIs like Directive, TemplateRef, and ViewContainerRef. This approach modifies element appearance or behavior, avoiding code duplication and ensuring consistent UI behavior across components.

Directive composition in Angular combines multiple behaviors across components and modules. Use it when you need to build reusable UI patterns, apply host bindings, or compose structural and host directives to manage element lifecycles without duplicating logic.

Yes, building custom directives works with Angular 20+ applications. It supports modern Angular core APIs including Directive, TemplateRef, ViewContainerRef, and dependency injection, allowing you to implement inputs, outputs, and host bindings effectively.

Yes, you can manage dependency injection and ViewContainerRef within structural directives. The implementation uses Angular core APIs to handle template rendering and composed behaviors, allowing you to build complex UI overlays and portal behaviors dynamically.

The best way to avoid code duplication for UI enhancements is building custom attribute directives. They encapsulate reusable DOM behaviors locally, ensuring consistent appearance and behavior changes across your application components without repeating logic.

Custom directives fail to apply composed behaviors when Angular core APIs like TemplateRef, ViewContainerRef, or dependency injection are misconfigured. Ensure your directive properly implements inputs, outputs, and host bindings to manage the DOM lifecycle correctly.