// 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 when fromIndex is undefined ---*/ var a = new Array(1, 2, 1); // undefined resolves to 0, no second argument resolves to len assert.sameValue(a.lastIndexOf(2, undefined), -1, 'a.lastIndexOf(2,undefined)'); assert.sameValue(a.lastIndexOf(1, undefined), 0, 'a.lastIndexOf(1,undefined)'); assert.sameValue(a.lastIndexOf(1), 2, 'a.lastIndexOf(1)'); reportCompare(0, 0);