code snippet for "Who Needs Classes Anyway?" post

s1.js

var MyNameSpace = MyNameSpace || {};
 
MyNameSpace.jsondateformatter = (function () {
    var that = this;
 
    var toDate = function (jsonDateString) {
        var time = jsonDateString.replace(/\/Date\(([0-9]*)\)\//, '$1');
        var date = new Date();
        date.setTime(time);
        return date;
    };
 
    var prefixWithZeroIfNecessary = function (number) {
        return number < 10 ? '0' + number : number;
    };
 
    var dayAsDoubleDigitDayString = function (date) {
        return prefixWithZeroIfNecessary(date.getDate());
    };
 
    var monthAsDoubleDigitMonthString = function (date) {
        // for some reason, the result of getMonth is zero-based
        return prefixWithZeroIfNecessary(date.getMonth() + 1);
    };
 
    var hourAsDoubleDigitHourString = function (date) {
        return prefixWithZeroIfNecessary(date.getHours());
    };
 
    var minutesAsDoubleDigitMinuteString = function (date) {
        return prefixWithZeroIfNecessary(date.getMinutes());
    }
 
    return {
        toDate: function (jsonDateString) {
            return that.toDate(jsonDateString);
        },
 
        toShortDateString: function (jsonDateString) {
            var date = toDate(jsonDateString);
            return dayAsDoubleDigitDayString(date) + '/' +
                   monthAsDoubleDigitMonthString(date) + '/' +
                   date.getFullYear();
        },
 
        toShortDateTimeString: function (jsonDateString) {
            var date = toDate(jsonDateString);
            return dayAsDoubleDigitDayString(date) + '/' +
                   monthAsDoubleDigitMonthString(date) + '/' +
                   date.getFullYear() + ' ' +
                   hourAsDoubleDigitHourString(date) + ':' +
                   minutesAsDoubleDigitMinuteString(date);
        }
    }
})();