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var $ = require('../internals/export'); var isObject = require('../internals/is-object'); var onFreeze = require('../internals/internal-metadata').onFreeze; var FREEZING = require('../internals/freezing'); var fails = require('../internals/fails');
// eslint-disable-next-line es/no-object-preventextensions -- safe
var $preventExtensions = Object.preventExtensions; var FAILS_ON_PRIMITIVES = fails(function () { $preventExtensions(1); });
// `Object.preventExtensions` method
// https://tc39.es/ecma262/#sec-object.preventextensions
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, { preventExtensions: function preventExtensions(it) { return $preventExtensions && isObject(it) ? $preventExtensions(onFreeze(it)) : it; } });
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