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node_modules/date-fns/differenceInCalendarQuarters.js

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+"use strict";
+exports.differenceInCalendarQuarters = differenceInCalendarQuarters;
+var _index = require("./getQuarter.js");
+var _index2 = require("./toDate.js");
+
+/**
+ * @name differenceInCalendarQuarters
+ * @category Quarter Helpers
+ * @summary Get the number of calendar quarters between the given dates.
+ *
+ * @description
+ * Get the number of calendar quarters 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
+
+ * @returns The number of calendar quarters
+ *
+ * @example
+ * // How many calendar quarters are between 31 December 2013 and 2 July 2014?
+ * const result = differenceInCalendarQuarters(
+ *   new Date(2014, 6, 2),
+ *   new Date(2013, 11, 31)
+ * )
+ * //=> 3
+ */
+function differenceInCalendarQuarters(dateLeft, dateRight) {
+  const _dateLeft = (0, _index2.toDate)(dateLeft);
+  const _dateRight = (0, _index2.toDate)(dateRight);
+
+  const yearDiff = _dateLeft.getFullYear() - _dateRight.getFullYear();
+  const quarterDiff =
+    (0, _index.getQuarter)(_dateLeft) - (0, _index.getQuarter)(_dateRight);
+
+  return yearDiff * 4 + quarterDiff;
+}