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819 BTypeScriptView Raw
1/**
2 * @name addQuarters
3 * @category Quarter Helpers
4 * @summary Add the specified number of year quarters to the given date.
5 *
6 * @description
7 * Add the specified number of year quarters to the given date.
8 *
9 * @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).
10 *
11 * @param date - The date to be changed
12 * @param amount - The amount of quarters to be added.
13 *
14 * @returns The new date with the quarters added
15 *
16 * @example
17 * // Add 1 quarter to 1 September 2014:
18 * const result = addQuarters(new Date(2014, 8, 1), 1)
19 * //=> Mon Dec 01 2014 00:00:00
20 */
21export declare function addQuarters<DateType extends Date>(
22 date: DateType | number | string,
23 amount: number,
24): DateType;