angular 过滤器（日期转换，时间转换，数据转换等）

(function() {
    'use strict';

    /**
     * myApp Module
     *
     * Description
     */
    angular.module('myApp')
        .filter('is_null', function() {
            return function(input) {
                return input || '/';
            }
        })
        .filter('star', function() {
            return function(input) {
                return Math.floor(input) || 0;
            }
        })
        .filter('unstar', function() {
            return function(input) {
                return 5 - Math.ceil(input) || 0;
            }
        })
        .filter('percent', function() {
            return function(input) {
                return (input * 100).toFixed(2) || 0;
            }
        })
        // 毫秒转天时分
        .filter('formatDuring', function() {
            return function(mss) {
                var days = parseInt(mss / (1000 * 60 * 60 * 24));
                var hours = parseInt((mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
                var minutes = parseInt((mss % (1000 * 60 * 60)) / (1000 * 60));
                var seconds = (mss % (1000 * 60)) / 1000;
                return days + " 天 " + hours + " 小时 " + minutes + " 分钟 " + seconds + " 秒 ";
            }
        })
        //时间戳转换
        .filter('getWeek', function() {
            return function(input) {
                var date = new Date(input * 1000);
                var week = date.getDay();
                switch (week) {
                    case 0:
                        return "星期天";
                        break;
                    case 1:
                        return "星期一";
                        break;
                    case 2:
                        return "星期二";
                        break;
                    case 3:
                        return "星期三";
                        break;
                    case 4:
                        return "星期四";
                        break;
                    case 5:
                        return "星期五";
                        break;
                    case 6:
                        return "星期六";
                        break;
                }
            }

        })
        .filter('snapshot', function() {
            return function(input) {
                input = input || '';
                var output = input.split('|')[0];
                return output;
            }
        })
})();