// 26.1.12 Reflect.preventExtensions(target) var $export = require('./_export'); var anObject = require('./_an-object'); var $preventExtensions = Object.preventExtensions; $export($export.S, 'Reflect', { preventExtensions: function preventExtensions(target) { anObject(target); try { if ($preventExtensions) $preventExtensions(target); return true; } catch (e) { return false; } } });