registration

frontend/style/node_modules/date-fns/differenceInCalendarWeeks.js

@@ -1,9 +1,7 @@
-"use strict";
-exports.differenceInCalendarWeeks = differenceInCalendarWeeks;
-var _index = require("./constants.js");
-var _index2 = require("./startOfWeek.js");
-
-var _index3 = require("./_lib/getTimezoneOffsetInMilliseconds.js");
+import { getTimezoneOffsetInMilliseconds } from "./_lib/getTimezoneOffsetInMilliseconds.js";
+import { normalizeDates } from "./_lib/normalizeDates.js";
+import { millisecondsInWeek } from "./constants.js";
+import { startOfWeek } from "./startOfWeek.js";
 
 /**
  * The {@link differenceInCalendarWeeks} function options.
@@ -17,10 +15,8 @@ var _index3 = require("./_lib/getTimezoneOffsetInMilliseconds.js");
  * @description
  * Get the number of calendar weeks between the given dates.
  *
- * @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 dateLeft - The later date
- * @param dateRight - The earlier date
+ * @param laterDate - The later date
+ * @param earlierDate - The earlier date
  * @param options - An object with options.
  *
  * @returns The number of calendar weeks
@@ -43,21 +39,23 @@ var _index3 = require("./_lib/getTimezoneOffsetInMilliseconds.js");
  * )
  * //=> 2
  */
-function differenceInCalendarWeeks(dateLeft, dateRight, options) {
-  const startOfWeekLeft = (0, _index2.startOfWeek)(dateLeft, options);
-  const startOfWeekRight = (0, _index2.startOfWeek)(dateRight, options);
-
-  const timestampLeft =
-    +startOfWeekLeft -
-    (0, _index3.getTimezoneOffsetInMilliseconds)(startOfWeekLeft);
-  const timestampRight =
-    +startOfWeekRight -
-    (0, _index3.getTimezoneOffsetInMilliseconds)(startOfWeekRight);
-
-  // Round the number of days to the nearest integer because the number of
-  // milliseconds in a days is not constant (e.g. it's different in the week of
-  // the daylight saving time clock shift).
-  return Math.round(
-    (timestampLeft - timestampRight) / _index.millisecondsInWeek,
+export function differenceInCalendarWeeks(laterDate, earlierDate, options) {
+  const [laterDate_, earlierDate_] = normalizeDates(
+    options?.in,
+    laterDate,
+    earlierDate,
   );
+
+  const laterStartOfWeek = startOfWeek(laterDate_, options);
+  const earlierStartOfWeek = startOfWeek(earlierDate_, options);
+
+  const laterTimestamp =
+    +laterStartOfWeek - getTimezoneOffsetInMilliseconds(laterStartOfWeek);
+  const earlierTimestamp =
+    +earlierStartOfWeek - getTimezoneOffsetInMilliseconds(earlierStartOfWeek);
+
+  return Math.round((laterTimestamp - earlierTimestamp) / millisecondsInWeek);
 }
+
+// Fallback for modularized imports:
+export default differenceInCalendarWeeks;