| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | 'use strict'; |
| 2 | |||||
| 3 | var $isNaN = require('../helpers/isNaN'); | ||||
| 4 | |||||
| 5 | // http://262.ecma-international.org/5.1/#sec-9.12 | ||||
| 6 | |||||
| 7 | module.exports = function SameValue(x, y) { | ||||
| 8 | if (x === y) { // 0 === -0, but they are not identical. | ||||
| 9 | if (x === 0) { return 1 / x === 1 / y; } | ||||
| 10 | return true; | ||||
| 11 | } | ||||
| 12 | return $isNaN(x) && $isNaN(y); | ||||
| 13 | }; | ||||