1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-117
description: >
Object.defineProperty - 'O' is an Array, test the length property
of 'O' is own data property that overrides an inherited data
property (15.4.5.1 step 1)
---*/
var arrObj = [0, 1, 2];
var arrProtoLen;
assert.throws(TypeError, function() {
arrProtoLen = Array.prototype.length;
Array.prototype.length = 0;
Object.defineProperty(arrObj, "2", {
configurable: false
});
Object.defineProperty(arrObj, "length", {
value: 1
});
});
assert.sameValue(arrObj.length, 3, 'arrObj.length');
assert.sameValue(Array.prototype.length, 0, 'Array.prototype.length');
|
