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Diffstat (limited to 'node_modules/date-fns/differenceInMonths/index.js')
| -rw-r--r-- | node_modules/date-fns/differenceInMonths/index.js | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/node_modules/date-fns/differenceInMonths/index.js b/node_modules/date-fns/differenceInMonths/index.js deleted file mode 100644 index 1422900..0000000 --- a/node_modules/date-fns/differenceInMonths/index.js +++ /dev/null @@ -1,64 +0,0 @@ -"use strict"; - -var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default; -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = differenceInMonths; -var _index = _interopRequireDefault(require("../toDate/index.js")); -var _index2 = _interopRequireDefault(require("../differenceInCalendarMonths/index.js")); -var _index3 = _interopRequireDefault(require("../compareAsc/index.js")); -var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js")); -var _index5 = _interopRequireDefault(require("../isLastDayOfMonth/index.js")); -/** - * @name differenceInMonths - * @category Month Helpers - * @summary Get the number of full months between the given dates. - * - * @description - * Get the number of full months between the given dates using trunc as a default rounding method. - * - * @param {Date|Number} dateLeft - the later date - * @param {Date|Number} dateRight - the earlier date - * @returns {Number} the number of full months - * @throws {TypeError} 2 arguments required - * - * @example - * // How many full months are between 31 January 2014 and 1 September 2014? - * const result = differenceInMonths(new Date(2014, 8, 1), new Date(2014, 0, 31)) - * //=> 7 - */ -function differenceInMonths(dirtyDateLeft, dirtyDateRight) { - (0, _index4.default)(2, arguments); - var dateLeft = (0, _index.default)(dirtyDateLeft); - var dateRight = (0, _index.default)(dirtyDateRight); - var sign = (0, _index3.default)(dateLeft, dateRight); - var difference = Math.abs((0, _index2.default)(dateLeft, dateRight)); - var result; - - // Check for the difference of less than month - if (difference < 1) { - result = 0; - } else { - if (dateLeft.getMonth() === 1 && dateLeft.getDate() > 27) { - // This will check if the date is end of Feb and assign a higher end of month date - // to compare it with Jan - dateLeft.setDate(30); - } - dateLeft.setMonth(dateLeft.getMonth() - sign * difference); - - // Math.abs(diff in full months - diff in calendar months) === 1 if last calendar month is not full - // If so, result must be decreased by 1 in absolute value - var isLastMonthNotFull = (0, _index3.default)(dateLeft, dateRight) === -sign; - - // Check for cases of one full calendar month - if ((0, _index5.default)((0, _index.default)(dirtyDateLeft)) && difference === 1 && (0, _index3.default)(dirtyDateLeft, dateRight) === 1) { - isLastMonthNotFull = false; - } - result = sign * (difference - Number(isLastMonthNotFull)); - } - - // Prevent negative zero - return result === 0 ? 0 : result; -} -module.exports = exports.default;
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