Method format

src/common/format/JSON.js:208–211

(number)

             */
            'date': function (date) {
                function format(number) {
                    // Format integers to have at least two digits.
                    return (number < 10) ? '0' + number : number;
                }

                return '"' + date.getFullYear() + '-' +
                    format(date.getMonth() + 1) + '-' +