18 lines
		
	
	
		
			422 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			422 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
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| 
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| var toStr = Object.prototype.toString;
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| 
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| module.exports = function isArguments(value) {
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| 	var str = toStr.call(value);
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| 	var isArgs = str === '[object Arguments]';
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| 	if (!isArgs) {
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| 		isArgs = str !== '[object Array]' &&
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| 			value !== null &&
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| 			typeof value === 'object' &&
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| 			typeof value.length === 'number' &&
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| 			value.length >= 0 &&
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| 			toStr.call(value.callee) === '[object Function]';
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| 	}
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| 	return isArgs;
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| };
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