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| author | Pinapelz <yukais@pinapelz.com> | 2025-06-28 17:26:46 -0700 |
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| committer | Pinapelz <yukais@pinapelz.com> | 2025-06-28 17:43:56 -0700 |
| commit | e4fa1e69e7ebfb627c7198fd1a9881e9327ec4d4 (patch) | |
| tree | 06284a538a6008eca75051399e47db4e5d50301c /node_modules/date-fns/esm/setWeekYear/index.js | |
initial commit: scaffolding
Diffstat (limited to 'node_modules/date-fns/esm/setWeekYear/index.js')
| -rw-r--r-- | node_modules/date-fns/esm/setWeekYear/index.js | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/node_modules/date-fns/esm/setWeekYear/index.js b/node_modules/date-fns/esm/setWeekYear/index.js new file mode 100644 index 0000000..1e56c20 --- /dev/null +++ b/node_modules/date-fns/esm/setWeekYear/index.js @@ -0,0 +1,62 @@ +import differenceInCalendarDays from "../differenceInCalendarDays/index.js"; +import startOfWeekYear from "../startOfWeekYear/index.js"; +import toDate from "../toDate/index.js"; +import toInteger from "../_lib/toInteger/index.js"; +import requiredArgs from "../_lib/requiredArgs/index.js"; +import { getDefaultOptions } from "../_lib/defaultOptions/index.js"; +/** + * @name setWeekYear + * @category Week-Numbering Year Helpers + * @summary Set the local week-numbering year to the given date. + * + * @description + * Set the local week-numbering year to the given date, + * saving the week number and the weekday number. + * 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 date to be changed + * @param {Number} weekYear - the local week-numbering year of the new 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 {Date} the new date with the local week-numbering year set + * @throws {TypeError} 2 arguments required + * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6 + * @throws {RangeError} `options.firstWeekContainsDate` must be between 1 and 7 + * + * @example + * // Set the local week-numbering year 2004 to 2 January 2010 with default options: + * const result = setWeekYear(new Date(2010, 0, 2), 2004) + * //=> Sat Jan 03 2004 00:00:00 + * + * @example + * // Set the local week-numbering year 2004 to 2 January 2010, + * // if Monday is the first day of week + * // and 4 January is always in the first week of the year: + * const result = setWeekYear(new Date(2010, 0, 2), 2004, { + * weekStartsOn: 1, + * firstWeekContainsDate: 4 + * }) + * //=> Sat Jan 01 2005 00:00:00 + */ +export default function setWeekYear(dirtyDate, dirtyWeekYear, options) { + var _ref, _ref2, _ref3, _options$firstWeekCon, _options$locale, _options$locale$optio, _defaultOptions$local, _defaultOptions$local2; + requiredArgs(2, arguments); + var defaultOptions = getDefaultOptions(); + var firstWeekContainsDate = toInteger((_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); + var date = toDate(dirtyDate); + var weekYear = toInteger(dirtyWeekYear); + var diff = differenceInCalendarDays(date, startOfWeekYear(date, options)); + var firstWeek = new Date(0); + firstWeek.setFullYear(weekYear, 0, firstWeekContainsDate); + firstWeek.setHours(0, 0, 0, 0); + date = startOfWeekYear(firstWeek, options); + date.setDate(date.getDate() + diff); + return date; +}
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