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 - added properties in step 2 are visible here ---*/ var arr = {}; Object.defineProperty(arr, "length", { get: function() { arr[2] = "length"; return 3; }, configurable: true }); assert.sameValue(Array.prototype.lastIndexOf.call(arr, "length"), 2, 'Array.prototype.lastIndexOf.call(arr, "length")');