How to implement object selection on click in angular js?

Question

Angular

How to use the ui.router module to implement selection (visually change the color, for example) of an object (text in the a tag) on ​​click?
Please provide an easy example :)

Answer 1

It is not entirely clear what is meant by selection, and what is meant by an object. Is the object an HTML element or a word in text? Well, here's the preview.
In template.
In code

$scope.select = function($event) {
      angular.element($event.target).addClass('badge');
}