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