Function updateCssClasses

src/directive/ngModel.js:131–134

* Decorates element with proper CSS classes.

()

         * Decorates element with proper CSS classes.
         */
        function updateCssClasses () {
          $animate.addClass($element, (modelCtrl.modified ? config.modifiedClassName : config.notModifiedClassName));
          $animate.removeClass($element, (modelCtrl.modified ? config.notModifiedClassName : config.modifiedClassName));
        }

        /**
         * Overloading original set-pristine method.