| // 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'); |