21 lines
		
	
	
		
			509 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			509 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
 | |
| 
 | |
| var $TypeError = require('es-errors/type');
 | |
| 
 | |
| var hasOwn = require('hasown');
 | |
| 
 | |
| var IsPropertyKey = require('./IsPropertyKey');
 | |
| var Type = require('./Type');
 | |
| 
 | |
| // https://262.ecma-international.org/6.0/#sec-hasownproperty
 | |
| 
 | |
| module.exports = function HasOwnProperty(O, P) {
 | |
| 	if (Type(O) !== 'Object') {
 | |
| 		throw new $TypeError('Assertion failed: `O` must be an Object');
 | |
| 	}
 | |
| 	if (!IsPropertyKey(P)) {
 | |
| 		throw new $TypeError('Assertion failed: `P` must be a Property Key');
 | |
| 	}
 | |
| 	return hasOwn(O, P);
 | |
| };
 | 
