hugoWebsite/node_modules/date-fns/getWeekYear/index.js

90 lines
4.5 KiB
JavaScript
Raw Normal View History

2022-10-29 00:20:35 +02:00
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = getWeekYear;
var _index = _interopRequireDefault(require("../startOfWeek/index.js"));
var _index2 = _interopRequireDefault(require("../toDate/index.js"));
var _index3 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
var _index5 = require("../_lib/defaultOptions/index.js");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* @name getWeekYear
* @category Week-Numbering Year Helpers
* @summary Get the local week-numbering year of the given date.
*
* @description
* Get the local week-numbering year of the given date.
* The exact calculation depends on the values of
* `options.weekStartsOn` (which is the index of the first day of the week)
* and `options.firstWeekContainsDate` (which is the day of January, which is always in
* the first week of the week-numbering year)
*
* Week numbering: https://en.wikipedia.org/wiki/Week#Week_numbering
*
* @param {Date|Number} date - the given date
* @param {Object} [options] - an object with options.
* @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
* @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday)
* @param {1|2|3|4|5|6|7} [options.firstWeekContainsDate=1] - the day of January, which is always in the first week of the year
* @returns {Number} the local week-numbering year
* @throws {TypeError} 1 argument required
* @throws {RangeError} `options.weekStartsOn` must be between 0 and 6
* @throws {RangeError} `options.firstWeekContainsDate` must be between 1 and 7
*
* @example
* // Which week numbering year is 26 December 2004 with the default settings?
* const result = getWeekYear(new Date(2004, 11, 26))
* //=> 2005
*
* @example
* // Which week numbering year is 26 December 2004 if week starts on Saturday?
* const result = getWeekYear(new Date(2004, 11, 26), { weekStartsOn: 6 })
* //=> 2004
*
* @example
* // Which week numbering year is 26 December 2004 if the first week contains 4 January?
* const result = getWeekYear(new Date(2004, 11, 26), { firstWeekContainsDate: 4 })
* //=> 2004
*/
function getWeekYear(dirtyDate, options) {
var _ref, _ref2, _ref3, _options$firstWeekCon, _options$locale, _options$locale$optio, _defaultOptions$local, _defaultOptions$local2;
(0, _index4.default)(1, arguments);
var date = (0, _index2.default)(dirtyDate);
var year = date.getFullYear();
var defaultOptions = (0, _index5.getDefaultOptions)();
var firstWeekContainsDate = (0, _index3.default)((_ref = (_ref2 = (_ref3 = (_options$firstWeekCon = options === null || options === void 0 ? void 0 : options.firstWeekContainsDate) !== null && _options$firstWeekCon !== void 0 ? _options$firstWeekCon : options === null || options === void 0 ? void 0 : (_options$locale = options.locale) === null || _options$locale === void 0 ? void 0 : (_options$locale$optio = _options$locale.options) === null || _options$locale$optio === void 0 ? void 0 : _options$locale$optio.firstWeekContainsDate) !== null && _ref3 !== void 0 ? _ref3 : defaultOptions.firstWeekContainsDate) !== null && _ref2 !== void 0 ? _ref2 : (_defaultOptions$local = defaultOptions.locale) === null || _defaultOptions$local === void 0 ? void 0 : (_defaultOptions$local2 = _defaultOptions$local.options) === null || _defaultOptions$local2 === void 0 ? void 0 : _defaultOptions$local2.firstWeekContainsDate) !== null && _ref !== void 0 ? _ref : 1); // Test if weekStartsOn is between 1 and 7 _and_ is not NaN
if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) {
throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively');
}
var firstWeekOfNextYear = new Date(0);
firstWeekOfNextYear.setFullYear(year + 1, 0, firstWeekContainsDate);
firstWeekOfNextYear.setHours(0, 0, 0, 0);
var startOfNextYear = (0, _index.default)(firstWeekOfNextYear, options);
var firstWeekOfThisYear = new Date(0);
firstWeekOfThisYear.setFullYear(year, 0, firstWeekContainsDate);
firstWeekOfThisYear.setHours(0, 0, 0, 0);
var startOfThisYear = (0, _index.default)(firstWeekOfThisYear, options);
if (date.getTime() >= startOfNextYear.getTime()) {
return year + 1;
} else if (date.getTime() >= startOfThisYear.getTime()) {
return year;
} else {
return year - 1;
}
}
module.exports = exports.default;