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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
		
	
	
		
			335 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			11 lines
		
	
	
		
			335 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright 2009 the Sputnik authors.  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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info: Result of number conversion from undefined value is NaN
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es5id: 9.3_A1_T1
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description: Undefined convert to Number by explicit transformation
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---*/
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assert.sameValue(Number(undefined), NaN);
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