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The global isNaN is not precise at all, and Number.isNaN is an ES6 feature that makes it preferrable to use assert's sameValue for NaN values, as it handles it internally using the comparison.
11 lines
280 B
JavaScript
11 lines
280 B
JavaScript
// Copyright (c) 2014 Ryan Lewis. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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es6id: 20.2.2.35
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author: Ryan Lewis
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description: Math.trunc should return NaN when called with NaN.
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---*/
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assert.sameValue(Math.trunc(NaN), NaN);
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