| 1234567891011121314151617181920 | 'use strict';var $TypeError = require('es-errors/type');var isNaN = require('../../helpers/isNaN');// https://262.ecma-international.org/11.0/#sec-numeric-types-number-sameValueZeromodule.exports = function NumberSameValueZero(x, y) {	if (typeof x !== 'number' || typeof y !== 'number') {		throw new $TypeError('Assertion failed: `x` and `y` arguments must be Numbers');	}	var xNaN = isNaN(x);	var yNaN = isNaN(y);	if (xNaN || yNaN) {		return xNaN === yNaN;	}	return x === y;};
 |