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我试图找到工厂退货的剩余部分。即使 obj 返回一个数字，我也会不断得到 null 。有没有办法将返回值转换为真实数字？

使用路由提供者设置模块

            var emanuel = angular.module('emanuel', []).config(function($routeProvider){
                $routeProvider.when('/weekday-morning', {
                    templateUrl: 'content/weekday-morning.html',
                    controller: 'WeekdayMorning'
                });
                $routeProvider.otherwise ({redirectTo: '/home' });
            });

接收日期 (mm/dd/yyyy) 字符串并根据 JSON 日历对其进行解析的工厂

            emanuel.factory('DayService', function($http, $q, $window){
                var obj = {};
                obj.oscWeek = function(d){
                    //receives a date format mm/dd/yyyy
                    var promise = $q.defer();
                    $http.get('content/calendar.json').success(function(data) {
                        var temp ='';
                        for (var i=0; i<data.calendar.seasons.season.length; i++){
                            //iterates through the end dates of all seasons to find current season
                            var day = new Date(d).getTime();
                            var end = new Date(data.calendar.seasons.season[i].end);
                            end.setHours(23,59);
                            //$window.alert(end);
                            end = end.getTime();
                            var diff = end - day;
                            diff = diff /(1000*60*60*24);
                            //$window.alert(diff);

                            if (parseFloat(diff) > 0){
                                // upon finding current season, find the time lapse since the start of the season
                                var start = new Date(data.calendar.seasons.season[i].start);
                                //$window.alert(start);
                                start = start.getTime();
                                var startDiff = day - start;
                                // converts time lapse into whole weeks
                                var week = parseInt(startDiff /(1000*60*60*24*7))+1;
                                promise.resolve(week);
                                break;
                            } 
                        }
                    });
                    return promise.promise;
                }
            return obj;
            });

接收 obj 返回的控制器。temp 返回 1 但 temp%2 返回 Null。

            emanuel.controller('WeekdayMorning', function($scope, DayService){
                    $scope.display = function(d) {
                        var date;
                        if(d=='today'){
                            date = new Date();
                        } else {
                            date = $scope.date;
                        }

                        var temp = DayService.oscWeek(date);
                        $scope.week = temp;
                        $scope.modulo = temp%2;
                    }
            });
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1 回答 1

2

您的服务方法返回一个承诺。模运算符不适用于 Promise。你应该在你的控制器中有这个：

temp.then(function(week) {
    $scope.week = week;
    $scope.modulo = week % 2;
});
于 2013-12-07T09:15:12.313 回答