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- 'use strict';
- var $ = require('../internals/export');
- 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/no-object-issealed -- safe
- var $isSealed = Object.isSealed;
- var FORCED = ARRAY_BUFFER_NON_EXTENSIBLE || fails(function () { $isSealed(1); });
- // `Object.isSealed` method
- // https://tc39.es/ecma262/#sec-object.issealed
- $({ target: 'Object', stat: true, forced: FORCED }, {
- isSealed: function isSealed(it) {
- if (!isObject(it)) return true;
- if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) === 'ArrayBuffer') return true;
- return $isSealed ? $isSealed(it) : false;
- }
- });
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