📝 Commit Details:

backend/node_modules/date-fns/lastDayOfMonth.js

@@ -0,0 +1,38 @@
+import { toDate } from "./toDate.js";
+
+/**
+ * The {@link lastDayOfMonth} function options.
+ */
+
+/**
+ * @name lastDayOfMonth
+ * @category Month Helpers
+ * @summary Return the last day of a month for the given date.
+ *
+ * @description
+ * Return the last day of a month for the given date.
+ * The result will be in the local timezone.
+ *
+ * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
+ * @typeParam ResultDate - The result `Date` type, it is the type returned from the context function if it is passed, or inferred from the arguments.
+ *
+ * @param date - The original date
+ * @param options - An object with options
+ *
+ * @returns The last day of a month
+ *
+ * @example
+ * // The last day of a month for 2 September 2014 11:55:00:
+ * const result = lastDayOfMonth(new Date(2014, 8, 2, 11, 55, 0))
+ * //=> Tue Sep 30 2014 00:00:00
+ */
+export function lastDayOfMonth(date, options) {
+  const _date = toDate(date, options?.in);
+  const month = _date.getMonth();
+  _date.setFullYear(_date.getFullYear(), month + 1, 0);
+  _date.setHours(0, 0, 0, 0);
+  return toDate(_date, options?.in);
+}
+
+// Fallback for modularized imports:
+export default lastDayOfMonth;