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- "use strict";
- var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.default = differenceInCalendarMonths;
- var _index = _interopRequireDefault(require("../toDate/index.js"));
- var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
- /**
- * @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.
- *
- * @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?
- * const 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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