1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.10-3-5
description: >
Object.preventExtensions - indexed properties cannot be added into
a String object
---*/
var strObj = new String();
var preCheck = Object.isExtensible(strObj);
Object.preventExtensions(strObj);
assert.throws(TypeError, function() {
Object.defineProperty(strObj, "0", {
value: "c"
});
});
assert(preCheck, 'preCheck !== true');
assert.sameValue(strObj.hasOwnProperty("0"), false, 'strObj.hasOwnProperty("0")');
assert.sameValue(typeof strObj[0], "undefined", 'typeof strObj[0]');
|
