Backend half

SerpentRace_Backend/node_modules/date-fns/esm/isMonday/index.js

@@ -0,0 +1,23 @@
+import toDate from "../toDate/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name isMonday
+ * @category Weekday Helpers
+ * @summary Is the given date Monday?
+ *
+ * @description
+ * Is the given date Monday?
+ *
+ * @param {Date|Number} date - the date to check
+ * @returns {Boolean} the date is Monday
+ * @throws {TypeError} 1 argument required
+ *
+ * @example
+ * // Is 22 September 2014 Monday?
+ * const result = isMonday(new Date(2014, 8, 22))
+ * //=> true
+ */
+export default function isMonday(date) {
+  requiredArgs(1, arguments);
+  return toDate(date).getDay() === 1;
+}