12 lines
		
	
	
		
			264 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			264 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
"use strict";
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var objToString = Object.prototype.toString, id = objToString.call(1);
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module.exports = function (value) {
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	return (
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		typeof value === "number" ||
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		value instanceof Number ||
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		(typeof value === "object" && objToString.call(value) === id)
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	);
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};
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