| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | 'use strict'; |
| 2 | |
| 3 | var getDay = Date.prototype.getDay; |
| 4 | var tryDateObject = function tryDateGetDayCall(value) { |
| 5 | try { |
| 6 | getDay.call(value); |
| 7 | return true; |
| 8 | } catch (e) { |
| 9 | return false; |
| 10 | } |
| 11 | }; |
| 12 | |
| 13 | var toStr = Object.prototype.toString; |
| 14 | var dateClass = '[object Date]'; |
| 15 | var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol'; |
| 16 | |
| 17 | module.exports = function isDateObject(value) { |
| 18 | if (typeof value !== 'object' || value === null) { |
| 19 | return false; |
| 20 | } |
| 21 | return hasToStringTag ? tryDateObject(value) : toStr.call(value) === dateClass; |
| 22 | }; |