'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); | |
}; |