// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.14-2-4
description: Object.keys returns the standard built-in Array that is extensible
---*/

  var o = { x: 1, y: 2};

  var a = Object.keys(o);

assert.sameValue(Object.isExtensible(a), true, 'Object.isExtensible(a)');