1 var $ = require('../internals/export');
2 var fails = require('../internals/fails');
3 var isObject = require('../internals/is-object');
4 var classof = require('../internals/classof-raw');
5 var ARRAY_BUFFER_NON_EXTENSIBLE = require('../internals/array-buffer-non-extensible');
7 // eslint-disable-next-line es/no-object-issealed -- safe
8 var $isSealed = Object.isSealed;
9 var FAILS_ON_PRIMITIVES = fails(function () { $isSealed(1); });
11 // `Object.isSealed` method
12 // https://tc39.es/ecma262/#sec-object.issealed
13 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES || ARRAY_BUFFER_NON_EXTENSIBLE }, {
14 isSealed: function isSealed(it) {
15 if (!isObject(it)) return true;
16 if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) == 'ArrayBuffer') return true;
17 return $isSealed ? $isSealed(it) : false;