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65 lines
1.9 KiB
65 lines
1.9 KiB
"use strict"; |
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports.default = compareAsc; |
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var _index = _interopRequireDefault(require("../toDate/index.js")); |
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var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js")); |
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
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/** |
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* @name compareAsc |
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* @category Common Helpers |
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* @summary Compare the two dates and return -1, 0 or 1. |
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* |
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* @description |
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* Compare the two dates and return 1 if the first date is after the second, |
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* -1 if the first date is before the second or 0 if dates are equal. |
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* |
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* ### v2.0.0 breaking changes: |
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* |
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). |
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* |
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* @param {Date|Number} dateLeft - the first date to compare |
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* @param {Date|Number} dateRight - the second date to compare |
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* @returns {Number} the result of the comparison |
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* @throws {TypeError} 2 arguments required |
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* |
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* @example |
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* // Compare 11 February 1987 and 10 July 1989: |
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* var result = compareAsc(new Date(1987, 1, 11), new Date(1989, 6, 10)) |
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* //=> -1 |
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* |
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* @example |
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* // Sort the array of dates: |
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* var result = [ |
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* new Date(1995, 6, 2), |
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* new Date(1987, 1, 11), |
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* new Date(1989, 6, 10) |
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* ].sort(compareAsc) |
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* //=> [ |
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* // Wed Feb 11 1987 00:00:00, |
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* // Mon Jul 10 1989 00:00:00, |
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* // Sun Jul 02 1995 00:00:00 |
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* // ] |
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*/ |
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function compareAsc(dirtyDateLeft, dirtyDateRight) { |
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(0, _index2.default)(2, arguments); |
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var dateLeft = (0, _index.default)(dirtyDateLeft); |
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var dateRight = (0, _index.default)(dirtyDateRight); |
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var diff = dateLeft.getTime() - dateRight.getTime(); |
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if (diff < 0) { |
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return -1; |
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} else if (diff > 0) { |
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return 1; // Return 0 if diff is 0; return NaN if diff is NaN |
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} else { |
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return diff; |
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} |
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} |
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module.exports = exports.default; |