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backend/node_modules/date-fns/differenceInCalendarISOWeekYears/index.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = differenceInCalendarISOWeekYears;
+var _index = _interopRequireDefault(require("../getISOWeekYear/index.js"));
+var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+/**
+ * @name differenceInCalendarISOWeekYears
+ * @category ISO Week-Numbering Year Helpers
+ * @summary Get the number of calendar ISO week-numbering years between the given dates.
+ *
+ * @description
+ * Get the number of calendar ISO week-numbering years between the given dates.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @param {Date|Number} dateLeft - the later date
+ * @param {Date|Number} dateRight - the earlier date
+ * @returns {Number} the number of calendar ISO week-numbering years
+ * @throws {TypeError} 2 arguments required
+ *
+ * @example
+ * // How many calendar ISO week-numbering years are 1 January 2010 and 1 January 2012?
+ * const result = differenceInCalendarISOWeekYears(
+ *   new Date(2012, 0, 1),
+ *   new Date(2010, 0, 1)
+ * )
+ * //=> 2
+ */
+function differenceInCalendarISOWeekYears(dirtyDateLeft, dirtyDateRight) {
+  (0, _index2.default)(2, arguments);
+  return (0, _index.default)(dirtyDateLeft) - (0, _index.default)(dirtyDateRight);
+}
+module.exports = exports.default;