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node_modules/date-fns/esm/getDay/index.js

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+import toDate from "../toDate/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name getDay
+ * @category Weekday Helpers
+ * @summary Get the day of the week of the given date.
+ *
+ * @description
+ * Get the day of the week of the given date.
+ *
+ * @param {Date|Number} date - the given date
+ * @returns {0|1|2|3|4|5|6} the day of week, 0 represents Sunday
+ * @throws {TypeError} 1 argument required
+ *
+ * @example
+ * // Which day of the week is 29 February 2012?
+ * const result = getDay(new Date(2012, 1, 29))
+ * //=> 3
+ */
+export default function getDay(dirtyDate) {
+  requiredArgs(1, arguments);
+  var date = toDate(dirtyDate);
+  var day = date.getDay();
+  return day;
+}