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24 lines
575 B
24 lines
575 B
'use strict'; |
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var GetIntrinsic = require('get-intrinsic'); |
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var $TypeError = GetIntrinsic('%TypeError%'); |
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var isNaN = require('../../helpers/isNaN'); |
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var Type = require('../Type'); |
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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 (Type(x) !== 'Number' || Type(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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