Angular Directives: Extending HTML Elements for Reusable Components and Behaviors
Directives are one of the core building blocks of Angular applications. They are used to extend the functionality of HTML elements and allow developers to create reusable components and behaviors.
In Angular, there are two types of directives: structural and attribute directives. Structural directives change the structure of the DOM by adding, removing, or manipulating elements. Attribute directives modify the behavior or appearance of existing elements.
Directives are defined using the @Directive decorator and can be attached to elements using a variety of syntaxes, including attribute syntax, class syntax, and structural syntax.
Some examples of built-in directives in Angular include *ngIf, *ngFor, and ngStyle, which are used to conditionally render elements, iterate over collections, and apply CSS styles, respectively. Developers can also create their own custom directives to encapsulate specific functionality and make it reusable throughout their application.
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