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 returns correct index when 'fromIndex' is -1 ---*/ assert.sameValue([1, 2, 3, 4].lastIndexOf(4, -1), 3, '[1, 2, 3, 4].lastIndexOf(4, -1)');