| // 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.indexof |
| es5id: 15.4.4.14-9-a-15 |
| description: > |
| Array.prototype.indexOf - deleting own property with prototype |
| property causes prototype index property to be visited on an |
| Array-like object |
| ---*/ |
| |
| var arr = { 0: 0, 1: 111, 2: 2, length: 10 }; |
| |
| Object.defineProperty(arr, "0", { |
| get: function () { |
| delete arr[1]; |
| return 0; |
| }, |
| configurable: true |
| }); |
| |
| Object.prototype[1] = 1; |
| |
| assert.sameValue(Array.prototype.indexOf.call(arr, 1), 1, 'Array.prototype.indexOf.call(arr, 1)'); |