12 lines
		
	
	
		
			214 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			214 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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var $isNaN = require('./isNaN');
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/** @type {import('./sign')} */
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module.exports = function sign(number) {
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	if ($isNaN(number) || number === 0) {
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		return number;
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	}
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	return number < 0 ? -1 : +1;
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};
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