test262/test/built-ins/Object/defineProperty/15.2.3.6-4-261.js

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JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-261
description: >
Object.defineProperty - 'O' is an Array, 'name' is an array index
named property, name is data property and 'desc' is data
descriptor, test updating the [[Writable]] attribute value of
'name' (15.4.5.1 step 4.c)
includes: [propertyHelper.js]
---*/
var arrObj = [100];
Object.defineProperty(arrObj, "0", {
writable: false
});
verifyEqualTo(arrObj, "0", 100);
verifyNotWritable(arrObj, "0");
verifyEnumerable(arrObj, "0");
verifyConfigurable(arrObj, "0");