AngularJS lifecycle app manager

appNamespace.appManager.js

(function () {
    "use strict";

    window.appNamespace = window.appNamespace || {};

    appNamespace.appManager = appNamespace.appManager || new AppManager();

    function AppManager() {
        this.currentAppName = '';
        this.currentApp = null;
    }

    AppManager.prototype.startApp = function (appContainer, appName) {
        if (this.currentApp) {
            this.destroyApp();
        }
        var $appContainer = $(appContainer);
        if (appContainer) {
            this.currentAppName = appName;
            this.currentApp = angular.bootstrap($appContainer[0], [appName]);
            appNamespace.load();
        }
    };

    AppManager.prototype.destroyApp = function () {
        var $rootScope = this.currentApp.get('$rootScope');
        $rootScope.$destroy();
        this.currentAppName = '';
        this.currentApp = null;
    };

})();