v1.0 with SW PWA enabled

frontend/node_modules/date-fns/getISOWeek.js

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+"use strict";
+exports.getISOWeek = getISOWeek;
+var _index = require("./constants.js");
+var _index2 = require("./startOfISOWeek.js");
+var _index3 = require("./startOfISOWeekYear.js");
+var _index4 = require("./toDate.js");
+
+/**
+ * @name getISOWeek
+ * @category ISO Week Helpers
+ * @summary Get the ISO week of the given date.
+ *
+ * @description
+ * Get the ISO week of the given date.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
+ *
+ * @param date - The given date
+ *
+ * @returns The ISO week
+ *
+ * @example
+ * // Which week of the ISO-week numbering year is 2 January 2005?
+ * const result = getISOWeek(new Date(2005, 0, 2))
+ * //=> 53
+ */
+function getISOWeek(date) {
+  const _date = (0, _index4.toDate)(date);
+  const diff =
+    +(0, _index2.startOfISOWeek)(_date) -
+    +(0, _index3.startOfISOWeekYear)(_date);
+
+  // Round the number of weeks to the nearest integer because the number of
+  // milliseconds in a week is not constant (e.g. it's different in the week of
+  // the daylight saving time clock shift).
+  return Math.round(diff / _index.millisecondsInWeek) + 1;
+}