go integration and wikipedia

frontend/node_modules/date-fns/addQuarters.d.ts

@@ -0,0 +1,24 @@
+/**
+ * @name addQuarters
+ * @category Quarter Helpers
+ * @summary Add the specified number of year quarters to the given date.
+ *
+ * @description
+ * Add the specified number of year quarters to the given date.
+ *
+ * @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).
+ *
+ * @param date - The date to be changed
+ * @param amount - The amount of quarters to be added.
+ *
+ * @returns The new date with the quarters added
+ *
+ * @example
+ * // Add 1 quarter to 1 September 2014:
+ * const result = addQuarters(new Date(2014, 8, 1), 1)
+ * //=> Mon Dec 01 2014 00:00:00
+ */
+export declare function addQuarters<DateType extends Date>(
+  date: DateType | number | string,
+  amount: number,
+): DateType;