// 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.lastindexof description: > Array.prototype.lastIndexOf - 'length' is own data property that overrides an inherited accessor property on an Array-like object ---*/ var proto = {}; Object.defineProperty(proto, "length", { get: function() { return 0; }, configurable: true }); var Con = function() {}; Con.prototype = proto; var child = new Con(); Object.defineProperty(child, "length", { value: 2, configurable: true }); child[1] = null; assert.sameValue(Array.prototype.lastIndexOf.call(child, null), 1, 'Array.prototype.lastIndexOf.call(child, null)'); reportCompare(0, 0);