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