20 lines
		
	
	
		
			556 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			20 lines
		
	
	
		
			556 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
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| 
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| var isNegativeZero = require('is-negative-zero');
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| 
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| var $TypeError = require('es-errors/type');
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| 
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| var NumberSameValueZero = require('./sameValueZero');
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| 
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| // https://262.ecma-international.org/11.0/#sec-numeric-types-number-sameValue
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| 
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| module.exports = function NumberSameValue(x, y) {
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| 	if (typeof x !== 'number' || typeof y !== 'number') {
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| 		throw new $TypeError('Assertion failed: `x` and `y` arguments must be Numbers');
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| 	}
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| 	if (x === 0 && y === 0) {
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| 		return !(isNegativeZero(x) ^ isNegativeZero(y));
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| 	}
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| 	return NumberSameValueZero(x, y);
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| };
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