import toDate from "../toDate/index.js"; import endOfDay from "../endOfDay/index.js"; import endOfMonth from "../endOfMonth/index.js"; import requiredArgs from "../_lib/requiredArgs/index.js"; /** * @name isLastDayOfMonth * @category Month Helpers * @summary Is the given date the last day of a month? * * @description * Is the given date the last day of a month? * * @param {Date|Number} date - the date to check * @returns {Boolean} the date is the last day of a month * @throws {TypeError} 1 argument required * * @example * // Is 28 February 2014 the last day of a month? * const result = isLastDayOfMonth(new Date(2014, 1, 28)) * //=> true */ export default function isLastDayOfMonth(dirtyDate) { requiredArgs(1, arguments); var date = toDate(dirtyDate); return endOfDay(date).getTime() === endOfMonth(date).getTime(); }