text: import toInteger from '../_lib/toInteger/index.js';
  import toDate from '../toDate/index.js';
  import getDaysInMonth from '../getDaysInMonth/index.js';
  /**
   * @name addMonths
   * @category Month Helpers
   * @summary Add the specified number of months to the given date.
   *
   * @description
   * Add the specified number of months to the given date.
   *
   * ### v2.0.0 breaking changes:
   *
   * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
   *
   * @param {Date|Number} date - the date to be changed
   * @param {Number} amount - the amount of months to be added
   * @returns {Date} the new date with the months added
   * @throws {TypeError} 2 arguments required
   *
   * @example
   * // Add 5 months to 1 September 2014:
   * var result = addMonths(new Date(2014, 8, 1), 5)
   * //=> Sun Feb 01 2015 00:00:00
   */
  
  export default function addMonths(dirtyDate, dirtyAmount) {
    if (arguments.length < 2) {
      throw new TypeError('2 arguments required, but only ' + arguments.length + ' present');
    }
  
    var date = toDate(dirtyDate);
    var amount = toInteger(dirtyAmount);
    var desiredMonth = date.getMonth() + amount;
    var dateWithDesiredMonth = new Date(0);
    dateWithDesiredMonth.setFullYear(date.getFullYear(), desiredMonth, 1);
    dateWithDesiredMonth.setHours(0, 0, 0, 0);
    var daysInMonth = getDaysInMonth(dateWithDesiredMonth); // Set the last day of the new month
    // if the original date was the last day of the longer month
  
    date.setMonth(desiredMonth, Math.min(daysInMonth, date.getDate()));
    return date;
  }