Angular Interview Practice

What best describes a component directive in Angular?

1. A directive that can only modify existing elements

2. A directive with a template defining part of the UI

3. A directive used solely for structural changes

4. A directive that does not use a template

The correct answer is: A directive with a template defining part of the UI

A component directive in Angular is defined as a directive that includes a template to define a part of the user interface. This characteristic distinguishes it from other types of directives, which may not necessarily involve a template. In Angular, component directives serve as the fundamental building blocks of the application structure, encapsulating both the logic and the view associated with a specific part of the interface. Each component directive has its own HTML template and styles, along with a class that contains the business logic to drive the component's behavior. This encapsulation allows for better reusability, maintainability, and separation of concerns within the application. While other options touch upon aspects of directives, they do not accurately capture the essence of component directives. For instance, modifying existing elements pertains more to attribute or structural directives rather than the comprehensive nature of a component directive that encompasses a template and its associated functionality. Thus, the inclusion of a template is what fundamentally defines a component directive in Angular.