js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-c-4.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

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

/*---
esid: sec-array.prototype.reduce
description: >
    Array.prototype.reduce doesn't throw error when array has no own
    properties but prototype contains a single property
---*/

var arr = [, , , ];

try {
  Array.prototype[1] = "prototype";
  arr.reduce(function() {});
} finally {
  delete Array.prototype[1];
}

reportCompare(0, 0);