Angular 1: ng-repeat 抛出 infdig 错误

Question

控制器：

(function(angular) {

    var app = angular.module('t2w');

    app.factory('httpq', function($http, $q) {
        return {
            get: function() {
                var deferred = $q.defer();
                $http.get.apply(null, arguments).success(deferred.resolve).error(deferred.resolve);
                return deferred.promise;
            }
        }
    });

    app.controller('JobsCtrl', ['$scope','httpq','baseUrl', function($scope, httpq, baseUrl) {

        httpq.get(baseUrl + '/jobs/json').then(function(data) {
            $scope.jobs = data;
        }).catch(function(data, status) {
            console.error('Error', response.status, response.data);
        }).finally(function() {
        });

        $scope.random = function() {
            return 0.5 - Math.random();
        };
    }]);

})(window.angular);

查看：

...

<tbody>
    <tr ng-repeat="job in jobs | orderBy:random">
        <td class="jobtitle">
            <a href="#jobs/{{job._id}}">
                {{job.title}} m/w
            </a>
            <p>
                {{job.introText | limitTo: 150}}...
            </p>
        </td>
        <td>
            {{job.area}}
        </td>
    </tr>
</tbody>

...

JSON 响应：

{
    "_id": "5880ae65ff62b610h4de2740",
    "updatedAt": "2017-01-19T12:17:37.027Z",
    "createdAt": "2017-01-19T12:17:37.027Z",
    "title": "Job Title",
    "area": "City",
    "introText": "Lorem Ipsum Sit Dolor",
    ...
}

错误：

angular.js:13920 Error: [$rootScope:infdig]

有人可以提示我为什么会出现此错误吗？已经检查了文档，我没有在我的 ng-repeat 中调用函数，也没有在每次调用时生成一个新数组。

Answer 1

如果您希望 ng-repeat 对数据进行随机排序，您必须像这样应用您自己的过滤器：

.filter('shuffle', function() {
    return function(ary) {
        return _.shuffle(ary);
    }
});

接下来像这样在视图中使用它：

<tr ng-repeat='job in job | shuffle'>

Answer 2

我解决问题的方法是在控制器中而不是在视图中对数组进行随机排序：

function shuffle(array) {
    var currentIndex = array.length, temporaryValue, randomIndex;
    while (0 !== currentIndex) {
        randomIndex = Math.floor(Math.random() * currentIndex);
        currentIndex -= 1;
        temporaryValue = array[currentIndex];
        array[currentIndex] = array[randomIndex];
        array[randomIndex] = temporaryValue;
    }
    return array;
}

$scope.jobs = shuffle($scope.jobs);

Angular 1: ng-repeat 抛出 infdig 错误

Angular 1: ng-repeat throws infdig error

httprequest

angularjs

ng-repeat

angularjs-ng-repeat

angularjs-infdig