AngularJS filter to format ASP.NET JSON Date

angular-jsonDate.js

// Format a /Date(XXXXXXXXXXXXXXXX)/ into a JSON date object. 
angular.module('jsonDate', []).filter('jsonDate', function () {
    return function (input, format) {

        if (angular.isUndefined(input))
            return;

        // first 6 character is the date
        var date = new Date(parseInt(input.substr(6)));

        // default date format
        if (angular.isUndefined(format))
            format = "MM/DD/YYYY";
            
        format = format.replace("DD", (date.getDate() < 10 ? '0' : '') + date.getDate()); // Pad with '0' if needed
        format = format.replace("MM", (date.getMonth() < 9 ? '0' : '') + (date.getMonth() + 1)); // Months are zero-based
        format = format.replace("YYYY", date.getFullYear());
        
        return format;
    };
});

Thank you very much!