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node_modules/date-fns/differenceInCalendarQuarters.js

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+import { normalizeDates } from "./_lib/normalizeDates.js";
+import { getQuarter } from "./getQuarter.js";
+
+/**
+ * The {@link differenceInCalendarQuarters} function options.
+ */
+
+/**
+ * @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.
+ *
+ * @param laterDate - The later date
+ * @param earlierDate - The earlier date
+ * @param options - An object with options
+ *
+ * @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
+ */
+export function differenceInCalendarQuarters(laterDate, earlierDate, options) {
+  const [laterDate_, earlierDate_] = normalizeDates(
+    options?.in,
+    laterDate,
+    earlierDate,
+  );
+
+  const yearsDiff = laterDate_.getFullYear() - earlierDate_.getFullYear();
+  const quartersDiff = getQuarter(laterDate_) - getQuarter(earlierDate_);
+
+  return yearsDiff * 4 + quartersDiff;
+}
+
+// Fallback for modularized imports:
+export default differenceInCalendarQuarters;