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import differenceInMonths from '../differenceInMonths/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name differenceInQuarters * @category Quarter Helpers * @summary Get the number of full quarters between the given dates. * * @description * Get the number of full quarters between the given dates. * * ### 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} dateLeft - the later date * @param {Date|Number} dateRight - the earlier date * @returns {Number} the number of full quarters * @throws {TypeError} 2 arguments required * * @example * // How many full quarters are between 31 December 2013 and 2 July 2014? * var result = differenceInQuarters(new Date(2014, 6, 2), new Date(2013, 11, 31)) * //=> 2 */export default function differenceInQuarters( dirtyDateLeft: Date | number, dirtyDateRight: Date | number): number { requiredArgs(2, arguments)
const diff = differenceInMonths(dirtyDateLeft, dirtyDateRight) / 3 return diff > 0 ? Math.floor(diff) : Math.ceil(diff)}