18 lines
		
	
	
		
			370 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			370 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
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| 
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| var Type = require('./Type');
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| 
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| // https://www.ecma-international.org/ecma-262/5.1/#sec-11.9.6
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| 
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| module.exports = function StrictEqualityComparison(x, y) {
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| 	var xType = Type(x);
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| 	var yType = Type(y);
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| 	if (xType !== yType) {
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| 		return false;
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| 	}
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| 	if (xType === 'Undefined' || xType === 'Null') {
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| 		return true;
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| 	}
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| 	return x === y; // shortcut for steps 4-7
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| };
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