internet-programming/lab3/node_modules/es-abstract/2020/IsExtensible.js

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2023-11-02 02:38:40 +04:00
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $preventExtensions = GetIntrinsic('%Object.preventExtensions%', true);
var $isExtensible = GetIntrinsic('%Object.isExtensible%', true);
var isPrimitive = require('../helpers/isPrimitive');
// https://262.ecma-international.org/6.0/#sec-isextensible-o
module.exports = $preventExtensions
? function IsExtensible(obj) {
return !isPrimitive(obj) && $isExtensible(obj);
}
: function IsExtensible(obj) {
return !isPrimitive(obj);
};