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- 'use strict';
- var $isNaN = require('../helpers/isNaN');
- // http://262.ecma-international.org/5.1/#sec-9.12
- module.exports = function SameValue(x, y) {
- if (x === y) { // 0 === -0, but they are not identical.
- if (x === 0) { return 1 / x === 1 / y; }
- return true;
- }
- return $isNaN(x) && $isNaN(y);
- };
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