// 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-16 description: > Array.prototype.indexOf - deleting own property with prototype property causes prototype index property to be visited on an Array ---*/ var arr = [0, 111, 2]; Object.defineProperty(arr, "0", { get: function () { delete arr[1]; return 0; }, configurable: true }); Array.prototype[1] = 1; assert.sameValue(arr.indexOf(1), 1, 'arr.indexOf(1)');