// 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
es5id: 15.4.4.21-8-b-iii-1-4
description: >
    Array.prototype.reduce - element to be retrieved is own data
    property that overrides an inherited data property on an Array
---*/

var testResult = false;

function callbackfn(prevVal, curVal, idx, obj) {
  if (idx === 1) {
    testResult = (prevVal === 0);
  }
}

Array.prototype[0] = "9";
[0, 1, 2].reduce(callbackfn);

assert(testResult, 'testResult !== true');
