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Diffstat (limited to 'node_modules/date-fns/esm/getWeekOfMonth/index.js')
| -rw-r--r-- | node_modules/date-fns/esm/getWeekOfMonth/index.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/node_modules/date-fns/esm/getWeekOfMonth/index.js b/node_modules/date-fns/esm/getWeekOfMonth/index.js new file mode 100644 index 0000000..7e9f228 --- /dev/null +++ b/node_modules/date-fns/esm/getWeekOfMonth/index.js @@ -0,0 +1,43 @@ +import { getDefaultOptions } from "../_lib/defaultOptions/index.js"; +import getDate from "../getDate/index.js"; +import getDay from "../getDay/index.js"; +import startOfMonth from "../startOfMonth/index.js"; +import requiredArgs from "../_lib/requiredArgs/index.js"; +import toInteger from "../_lib/toInteger/index.js"; +/** + * @name getWeekOfMonth + * @category Week Helpers + * @summary Get the week of the month of the given date. + * + * @description + * Get the week of the month of the given date. + * + * @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) + * @returns {Number} the week of month + * @throws {TypeError} 1 argument required + * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6 inclusively + * + * @example + * // Which week of the month is 9 November 2017? + * const result = getWeekOfMonth(new Date(2017, 10, 9)) + * //=> 2 + */ +export default function getWeekOfMonth(date, options) { + var _ref, _ref2, _ref3, _options$weekStartsOn, _options$locale, _options$locale$optio, _defaultOptions$local, _defaultOptions$local2; + requiredArgs(1, arguments); + var defaultOptions = getDefaultOptions(); + var weekStartsOn = toInteger((_ref = (_ref2 = (_ref3 = (_options$weekStartsOn = options === null || options === void 0 ? void 0 : options.weekStartsOn) !== null && _options$weekStartsOn !== void 0 ? _options$weekStartsOn : options === null || options === void 0 ? void 0 : (_options$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.weekStartsOn) !== null && _ref3 !== void 0 ? _ref3 : defaultOptions.weekStartsOn) !== 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.weekStartsOn) !== null && _ref !== void 0 ? _ref : 0); + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + var currentDayOfMonth = getDate(date); + if (isNaN(currentDayOfMonth)) return NaN; + var startWeekDay = getDay(startOfMonth(date)); + var lastDayOfFirstWeek = weekStartsOn - startWeekDay; + if (lastDayOfFirstWeek <= 0) lastDayOfFirstWeek += 7; + var remainingDaysAfterFirstWeek = currentDayOfMonth - lastDayOfFirstWeek; + return Math.ceil(remainingDaysAfterFirstWeek / 7) + 1; +}
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