// 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 - deleting property of prototype causes deleted index property not to be visited on an Array-like Object ---*/ var accessed = false; var testResult = true; function callbackfn(accum, val, idx, obj) { accessed = true; if (idx === 3) { testResult = false; } } var obj = { 2: 2, length: 20 }; Object.defineProperty(obj, "0", { get: function() { delete Object.prototype[3]; return 0; }, configurable: true }); Object.prototype[3] = 1; Array.prototype.reduce.call(obj, callbackfn, "initialValue"); assert(testResult, 'testResult !== true'); assert(accessed, 'accessed !== true'); reportCompare(0, 0);