Strict mode Passingnon-Strict mode Passing
Features:
- ∅
// 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 - element to be retrieved is own data property that overrides an inherited accessor property on an Array ---*/ Object.defineProperty(Array.prototype, "0", { get: function() { return false; }, configurable: true }); assert.sameValue([Number].lastIndexOf(Number), 0, '[Number].lastIndexOf(Number)');