test262/test/built-ins/Number/S9.3_A1_T1.js
Leo Balter e49d2661a8 Improve assertions comparing values to NaN (#690)
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.
2016-07-01 11:22:55 -07:00

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JavaScript

// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: Result of number conversion from undefined value is NaN
es5id: 9.3_A1_T1
description: Undefined convert to Number by explicit transformation
---*/
assert.sameValue(Number(undefined), NaN);