Features of Directives
- Reusability: Directives combine specific functionalities that allows you to reuse them across different parts of the application. This promotes code maintainability and reduces duplication.
- Attribute Modification: Attribute directives can dynamically add, remove, or modify attributes of HTML elements based on data or expressions. This allows for flexible styling and behavior control.
- Template Manipulation: Structural directives like *ngIf and *ngFor manipulate the template itself, that allows to conditionally display or iterate over elements based on data.
- Encapsulation: Directives encapsulate logic and behaviour within a class, that provides separation of concerns and making our code more maintainable.
- Access to Host Elements : Directives have access to host elements they are applied to, allowing them to interact with the element and its properties.
Purpose of the @Directive decorator.
In Angular, Directives are defined as classes that can add new behavior to the elements in the template or modify existing behavior. The `@Directive` decorator in Angular is used to create a directive, which is a class that allows us to attach behavior to elements in the DOM. Directives are a way to extend the functionality of HTML elements and attributes in Angular applications.