Current File : //var/www/html/node_modules/date-fns/differenceInCalendarMonths/index.js
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = differenceInCalendarMonths;
var _index = _interopRequireDefault(require("../toDate/index.js"));
var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* @name differenceInCalendarMonths
* @category Month Helpers
* @summary Get the number of calendar months between the given dates.
*
* @description
* Get the number of calendar months 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 calendar months
* @throws {TypeError} 2 arguments required
*
* @example
* // How many calendar months are between 31 January 2014 and 1 September 2014?
* var result = differenceInCalendarMonths(
* new Date(2014, 8, 1),
* new Date(2014, 0, 31)
* )
* //=> 8
*/
function differenceInCalendarMonths(dirtyDateLeft, dirtyDateRight) {
(0, _index2.default)(2, arguments);
var dateLeft = (0, _index.default)(dirtyDateLeft);
var dateRight = (0, _index.default)(dirtyDateRight);
var yearDiff = dateLeft.getFullYear() - dateRight.getFullYear();
var monthDiff = dateLeft.getMonth() - dateRight.getMonth();
return yearDiff * 12 + monthDiff;
}
module.exports = exports.default;
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