// 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-18 description: > Array.prototype.indexOf - decreasing length of array with prototype property causes prototype index property to be visited ---*/ var arr = [0, 1, 2]; Object.defineProperty(Array.prototype, "2", { get: function() { return "prototype"; }, configurable: true }); Object.defineProperty(arr, "1", { get: function() { arr.length = 2; return 1; }, configurable: true }); assert.sameValue(arr.indexOf("prototype"), 2, 'arr.indexOf("prototype")');