| // Copyright (c) 2012 Ecma International. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| es5id: 15.2.3.14-5-a-4 |
| description: > |
| Object.keys - Verify that 'configurable' attribute of element of |
| returned array is correct |
| ---*/ |
| |
| var obj = { |
| prop1: 100 |
| }; |
| |
| var array = Object.keys(obj); |
| var desc = Object.getOwnPropertyDescriptor(array, "0"); |
| |
| delete array[0]; |
| |
| assert.sameValue(typeof array[0], "undefined", 'typeof array[0]'); |
| assert(desc.hasOwnProperty("configurable"), 'desc.hasOwnProperty("configurable") !== true'); |
| assert.sameValue(desc.configurable, true, 'desc.configurable'); |