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	* Automated assertion message update: Array.from * Automated assertion message update: Array.isArray * Automated assertion message update: Array length property * Automated assertion message update: Array.of * Automated assertion message update: Array * Automated assertion message update: Array.prototype.at * Automated assertion message update: Array.prototype.concat * Automated assertion message update: compareArray -> assert.compareArray
		
			
				
	
	
		
			23 lines
		
	
	
		
			581 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			581 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright 2015 Microsoft Corporation. All rights reserved.
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// This code is governed by the license found in the LICENSE file.
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/*---
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description: Source is an object with missing values
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esid: sec-array.from
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es6id: 22.1.2.1
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---*/
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var array = [2, 4, , 16];
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var obj = {
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  length: 4,
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  0: 2,
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  1: 4,
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  3: 16
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};
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var a = Array.from.call(Object, obj);
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assert.sameValue(typeof a, "object", 'The value of `typeof a` is expected to be "object"');
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for (var j = 0; j < a.length; j++) {
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  assert.sameValue(a[j], array[j], 'The value of a[j] is expected to equal the value of array[j]');
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}
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