如何使用AngularJS设置页面标题

Question

我使用以下代码显示每个AngularJS应用程序模板的页面标题,但每当我尝试输入无效的URL来测试.otherwise时,我会收到以下错误:

TypeError: Cannot read property 'title' of undefined
    at http://localhost/app/js/app.js:34:43

以下是使用的app.js,index.html代码:

app.js:

var myApp = angular.module('myApp', ['ngRoute', 'ngSanitize']);
myApp.config(['$routeProvider', function($routeProvider) {

       $routeProvider.when('/home', 
                {     templateUrl: 'templates/index.html', 
                      controller: 'MainController',
                      title: 'Welcome to Home Page'
                });
        $routeProvider.otherwise({
                                    redirectTo: '/home'

                                 });

}]);


myApp.run(['$location', '$rootScope', function($location, $rootScope) {
    $rootScope.$on('$routeChangeSuccess', function (event, current, previous) {
        $rootScope.title = current.$$route.title;
    });
}]);

index.html的:

<title ng-bind="title +' - MyAPP Home'"> - MyApp</title>

请建议

Answer 1

该$routeChangeSuccess事件将被不管是什么引发的,所以通过测试路线的存在避免了错误:

myApp.run(['$location', '$rootScope', function($location, $rootScope) {
    $rootScope.$on('$routeChangeSuccess', function (event, current, previous) {

        if (current.hasOwnProperty('$$route')) {

            $rootScope.title = current.$$route.title;
        }
    });
}]);