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frontend/node_modules/date-fns/esm/getISODay/index.js

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+import toDate from "../toDate/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name getISODay
+ * @category Weekday Helpers
+ * @summary Get the day of the ISO week of the given date.
+ *
+ * @description
+ * Get the day of the ISO week of the given date,
+ * which is 7 for Sunday, 1 for Monday etc.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @param {Date|Number} date - the given date
+ * @returns {Number} the day of ISO week
+ * @throws {TypeError} 1 argument required
+ *
+ * @example
+ * // Which day of the ISO week is 26 February 2012?
+ * const result = getISODay(new Date(2012, 1, 26))
+ * //=> 7
+ */
+export default function getISODay(dirtyDate) {
+  requiredArgs(1, arguments);
+  var date = toDate(dirtyDate);
+  var day = date.getDay();
+  if (day === 0) {
+    day = 7;
+  }
+  return day;
+}