39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
|
"use strict";
|
||
|
|
exports.differenceInCalendarQuarters = differenceInCalendarQuarters;
|
||
|
|
var _index = require("./getQuarter.js");
|
||
|
|
var _index2 = require("./toDate.js");
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @name differenceInCalendarQuarters
|
||
|
|
* @category Quarter Helpers
|
||
|
|
* @summary Get the number of calendar quarters between the given dates.
|
||
|
|
*
|
||
|
|
* @description
|
||
|
|
* Get the number of calendar quarters between the given dates.
|
||
|
|
*
|
||
|
|
* @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 dateLeft - The later date
|
||
|
|
* @param dateRight - The earlier date
|
||
|
|
|
||
|
|
* @returns The number of calendar quarters
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* // How many calendar quarters are between 31 December 2013 and 2 July 2014?
|
||
|
|
* const result = differenceInCalendarQuarters(
|
||
|
|
* new Date(2014, 6, 2),
|
||
|
|
* new Date(2013, 11, 31)
|
||
|
|
* )
|
||
|
|
* //=> 3
|
||
|
|
*/
|
||
|
|
function differenceInCalendarQuarters(dateLeft, dateRight) {
|
||
|
|
const _dateLeft = (0, _index2.toDate)(dateLeft);
|
||
|
|
const _dateRight = (0, _index2.toDate)(dateRight);
|
||
|
|
|
||
|
|
const yearDiff = _dateLeft.getFullYear() - _dateRight.getFullYear();
|
||
|
|
const quarterDiff =
|
||
|
|
(0, _index.getQuarter)(_dateLeft) - (0, _index.getQuarter)(_dateRight);
|
||
|
|
|
||
|
|
return yearDiff * 4 + quarterDiff;
|
||
|
|
}
|