Constnium/node_modules/es-abstract/2021/IsExtensible.js
2022-06-23 02:27:43 +02:00

18 lines
509 B
JavaScript

'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://ecma-international.org/ecma-262/6.0/#sec-isextensible-o
module.exports = $preventExtensions
? function IsExtensible(obj) {
return !isPrimitive(obj) && $isExtensible(obj);
}
: function IsExtensible(obj) {
return !isPrimitive(obj);
};