| 'use strict'; | |
| var $TypeError = require('es-errors/type'); | |
| var isNaN = require('../../helpers/isNaN'); | |
| // https://262.ecma-international.org/11.0/#sec-numeric-types-number-equal | |
| module.exports = function NumberEqual(x, y) { | |
| if (typeof x !== 'number' || typeof y !== 'number') { | |
| throw new $TypeError('Assertion failed: `x` and `y` arguments must be Numbers'); | |
| } | |
| if (isNaN(x) || isNaN(y)) { | |
| return false; | |
| } | |
| // shortcut for the actual spec mechanics | |
| return x === y; | |
| }; |