AngularJS 分页类型错误：无法读取未定义的属性'slice'

Question

我在尝试使用引导分页时收到TypeError: Cannot read property 'slice' of undefined错误消息。我相信错误是由于尝试在ng-repeat items上应用.slice()方法时的范围问题而发生的。

我已经包含了我认为出现问题的代码。我一直在使用这篇文章 - AngularJS 分页和无法读取未定义的属性"切片"作为解决我遇到的问题的指南。

控制器.js：

defaultPage = angular.module('DefaultPage', ['ui.bootstrap']);
defaultPage.controller('DefaultController', ['$scope', '$http', function ($scope, $http) {
    $scope.data = {};
    $scope.totalItems = $scope.ctrl.info.length;
            //console.log($scope.ctrl.info.length)
            $scope.itemsPerPage = 25;
            $scope.currentPage = 1;
            $scope.max = "3";
            $scope.pageCount = function () {
                var begin = (($scope.currentPage - 1) * $scope.itemsPerPage);
                //console.log(begin)
                var end = begin + $scope.itemsPerPage;
                //console.log(end)
                $scope.totalItems = $scope.items.slice(begin, end);
                console.log($scope.items)
            };
}]);

.HTML：

<div class="main" ng-controller="DefaultController as ctrl">
    <div class="search">
        <h1 class="shadow"></h1>
        <div class="searchbox">
            <i class="fa fa-search"></i>
            <input ng-model="query" placeholder="Search Issue Title or Case #" autofocus>
        </div>
    </div>
    <ul class="channellist">
        <li ng-repeat="items in ctrl.info | filter: query | filter: issue" class="channel cf">
            <a ng-href="#/issues/{{ctrl.info.indexOf(items)}}">
                <img ng-src="{{items.user.avatar_url}}" alt="channel logo for {{items.user.avatar_url}}" />
                <div class="info">
                    <h2 class="userName">{{items.user.login}}</h2>
                    <h4 class="case">case: #{{items.number}}</h4>
                    <h4 class="case">issue status: {{items.state}}</h4>
                    <div class="main">
                        <h3 class="title">{{items.title}}</h3>
                        <p class="body">{{items.body}}</p>
                    </div>
                    <div class="label_info">
                        <ul>
                            <li class="mark">Created:</li>
                            <li class="mark"> {{items.created_at}}
                            </li>
                            <li class="mark">Updated:</li>
                            <li class="mark"> {{items.updated_at}}</li>
                        </ul>
                    </div>
                </div>
            </a>
        </li>
        <uib-pagination boundary-links="true" max-size="max" items-per-page="itemsPerPage" total-items="totalItems" ng-model="currentPage" ng-change="pageChanged()"></uib-pagination>
    </ul>
</div>

Answer 1

你不能切片

不存在的东西，试着先定义项目。