Category: AngularJS

Register app services with .service() for shared business logic.

Create services with .factory() returning an object or function.

Create reusable components with directive definitions.

Handle user interactions with ng-click and related event directives.

Run expressions on click — usually call a controller method.

React when an ng-model value changes.

Handle form submit without a full page reload.

Use ng-mouseenter, ng-mouseleave, ng-keyup, and similar directives.

Transform display values in templates with | filter syntax.

Apply CSS classes conditionally with maps, strings, or arrays.