14 lines
		
	
	
		
			313 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
		
			313 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| "use strict";
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| 
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| var floor = Math.floor;
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| 
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| module.exports = function (value) {
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| 	if (isNaN(value)) return NaN;
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| 	value = Number(value);
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| 	if (value === 0) return value;
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| 	if (value === Infinity) return Infinity;
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| 	if (value === -Infinity) return -Infinity;
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| 	if (value > 0) return floor(value);
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| 	return -floor(-value);
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| };
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