test/built-ins/Array/prototype/lastIndexOf/15.4.4.15-2-14.js


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// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.4.4.15-2-14
description: >
    Array.prototype.lastIndexOf - 'length' is undefined property on an
    Array-like object
includes: [runTestCase.js]
---*/

function testcase() {

        var obj = { 0: null, 1: undefined };

        return Array.prototype.lastIndexOf.call(obj, null) === -1;
    }
runTestCase(testcase);