AngularJs 在控制器中过滤

<html>
<head>
<title>Simple app</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.6/angular.js"></script>
</head>
<body>

<div ng-app="myApp">
  <input ng-model="name" type="text" placeholder="Your name">
  <h1>Hello {{ name }}</h1>
  <div ng-controller="CustomScopeController">
   {{userSlug}}
  </div>
</div>
<script>
var app = angular.module('myApp', []);

function ctrl($scope, $filter) {
    $scope.images = [{
        orgName: 'B',
        sortOrder: 111
    }, {
        orgName: 'A',
        sortOrder: 12
    }, {
        orgName: 'D',
        sortOrder: 13
    }, {
        orgName: 'C',
        sortOrder: 14
    }];

    $scope.order = function (order) {
        if (order == '0') {
            $scope.images = $filter('orderBy')($scope.images, 'orgName');
        } else {
            $scope.images = $filter('orderBy')($scope.images, 'sortOrder');
        }
    }
}
</script>
</body>
</html>