12 lines
		
	
	
		
			283 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			283 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| "use strict";
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| 
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| var isArray = Array.isArray, getPrototypeOf = Object.getPrototypeOf;
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| 
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| module.exports = function (obj) {
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| 	var proto;
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| 	if (!obj || !isArray(obj)) return false;
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| 	proto = getPrototypeOf(obj);
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| 	if (!isArray(proto)) return false;
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| 	return !isArray(getPrototypeOf(proto));
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| };
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