You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16 lines
776 B
16 lines
776 B
var fails = require('../internals/fails'); |
|
var isObject = require('../internals/is-object'); |
|
var classof = require('../internals/classof-raw'); |
|
var ARRAY_BUFFER_NON_EXTENSIBLE = require('../internals/array-buffer-non-extensible'); |
|
|
|
// eslint-disable-next-line es-x/no-object-isextensible -- safe |
|
var $isExtensible = Object.isExtensible; |
|
var FAILS_ON_PRIMITIVES = fails(function () { $isExtensible(1); }); |
|
|
|
// `Object.isExtensible` method |
|
// https://tc39.es/ecma262/#sec-object.isextensible |
|
module.exports = (FAILS_ON_PRIMITIVES || ARRAY_BUFFER_NON_EXTENSIBLE) ? function isExtensible(it) { |
|
if (!isObject(it)) return false; |
|
if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) == 'ArrayBuffer') return false; |
|
return $isExtensible ? $isExtensible(it) : true; |
|
} : $isExtensible;
|
|
|