https://coderwall.com/p/zve9vq

AngularJS Blur directive

Module.directive('ng-blur', function() {
        return {
            restrict: 'A',
            link: function postLink(scope, element, attrs) {
                element.bind('blur', function () {
                    scope.$apply(attrs.ngBlur);
                });
            }
        };
    });

And use it in html template:

<input type="text" ng-blur="handleInputBlur()"></input>

And handle it in controller:

$scope.handleInputBlur = function(){
   // do some action here
}