getMeta(date) {
        return {
            year: date.getFullYear(),
            monthIndex: date.getMonth(),
            month: date.getMonth() + 1,
            monthStr: this._twoDigits(date.getMonth() + 1),
            day: date.getDate(),
            dayStr: this._twoDigits(date.getDate())
        }
    }
Get Date object meta object for custom methods and algorithms

@param {Date} date
@returns {Object}