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Diffstat (limited to 'node_modules/date-fns/differenceInYears/index.js')
| -rw-r--r-- | node_modules/date-fns/differenceInYears/index.js | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/node_modules/date-fns/differenceInYears/index.js b/node_modules/date-fns/differenceInYears/index.js deleted file mode 100644 index bd08c5b..0000000 --- a/node_modules/date-fns/differenceInYears/index.js +++ /dev/null @@ -1,49 +0,0 @@ -"use strict"; - -var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default; -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = differenceInYears; -var _index = _interopRequireDefault(require("../toDate/index.js")); -var _index2 = _interopRequireDefault(require("../differenceInCalendarYears/index.js")); -var _index3 = _interopRequireDefault(require("../compareAsc/index.js")); -var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js")); -/** - * @name differenceInYears - * @category Year Helpers - * @summary Get the number of full years between the given dates. - * - * @description - * Get the number of full years between the given dates. - * - * @param {Date|Number} dateLeft - the later date - * @param {Date|Number} dateRight - the earlier date - * @returns {Number} the number of full years - * @throws {TypeError} 2 arguments required - * - * @example - * // How many full years are between 31 December 2013 and 11 February 2015? - * const result = differenceInYears(new Date(2015, 1, 11), new Date(2013, 11, 31)) - * //=> 1 - */ -function differenceInYears(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)); - - // Set both dates to a valid leap year for accurate comparison when dealing - // with leap days - dateLeft.setFullYear(1584); - dateRight.setFullYear(1584); - - // Math.abs(diff in full years - diff in calendar years) === 1 if last calendar year is not full - // If so, result must be decreased by 1 in absolute value - var isLastYearNotFull = (0, _index3.default)(dateLeft, dateRight) === -sign; - var result = sign * (difference - Number(isLastYearNotFull)); - // Prevent negative zero - return result === 0 ? 0 : result; -} -module.exports = exports.default;
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