@jsbits/add-months/index.d.ts

Adds or subtracts N months to any JavaScript Date, local or UTC.

/**
 * Returns a date occurring `count` months after `startdate` or, if `count` is
 * negative, the date occurring `count` months before `startdate`.
 *
 * - If `startdate` is not a Date or number that can be converted to a
 *    valid date, returns a new Date instance with an invalid date.
 *
 * - If `count` is evaluated as zero, returns a new Date instance with the
 *    the same value as `startdate`.
 *
 * - If there is an overflow in the day, the date is adjusted to the last
 *    valid day of the expected month.
 *
 * The third parameter is optional and indicates if the date is UTC. It is
 * necessary to differentiate UTC dates from locals and avoid errors due to the
 * [Daylight Saving Time](https://en.wikipedia.org/wiki/Daylight_saving_time)
 * (DST).
 *
 * This function does not change the original date.
 *
 * @param {Date|number} startdate A value parseable as a JavaScript Date
 * @param {number} count Number of months to add or subtract
 * @param {boolean} [asUTC=false] If `true`, handle the date as UTC
 * @returns {Date} A new, adjusted Date instance.
 * @since 1.0.0
 */
declare const addMonths: (startdate: number | Date, count: number, asUTC?: boolean | undefined) => Date;
export = addMonths;
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