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// 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: 15.4.4.21-9-b-11
description: >
Array.prototype.reduce - deleting property of prototype in step 8
causes deleted index property not to be visited on an Array
---*/
var accessed = false;
var testResult = true;
function callbackfn(accum, val, idx, obj) {
accessed = true;
if (idx === 1) {
testResult = false;
}
}
var arr = [, , , 3];
Object.defineProperty(arr, "0", {
get: function () {
delete Array.prototype[1];
return 0;
},
configurable: true
});
Array.prototype[1] = 1;
arr.reduce(callbackfn);
assert(testResult, 'testResult !== true');
assert(accessed, 'accessed !== true');
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