"use strict"; var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = endOfISOWeekYear; var _index = _interopRequireDefault(require("../getISOWeekYear/index.js")); var _index2 = _interopRequireDefault(require("../startOfISOWeek/index.js")); var _index3 = _interopRequireDefault(require("../_lib/requiredArgs/index.js")); /** * @name endOfISOWeekYear * @category ISO Week-Numbering Year Helpers * @summary Return the end of an ISO week-numbering year for the given date. * * @description * Return the end of an ISO week-numbering year, * which always starts 3 days before the year's first Thursday. * The result will be in the local timezone. * * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date * * @param {Date|Number} date - the original date * @returns {Date} the end of an ISO week-numbering year * @throws {TypeError} 1 argument required * * @example * // The end of an ISO week-numbering year for 2 July 2005: * const result = endOfISOWeekYear(new Date(2005, 6, 2)) * //=> Sun Jan 01 2006 23:59:59.999 */ function endOfISOWeekYear(dirtyDate) { (0, _index3.default)(1, arguments); var year = (0, _index.default)(dirtyDate); var fourthOfJanuaryOfNextYear = new Date(0); fourthOfJanuaryOfNextYear.setFullYear(year + 1, 0, 4); fourthOfJanuaryOfNextYear.setHours(0, 0, 0, 0); var date = (0, _index2.default)(fourthOfJanuaryOfNextYear); date.setMilliseconds(date.getMilliseconds() - 1); return date; } module.exports = exports.default;