JSTests/test262/test/built-ins/Array/prototype/filter/15.4.4.20-1-9.js

// 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.filter
es5id: 15.4.4.20-1-9
description: Array.prototype.filter applied to Function object
---*/

        function callbackfn(val, idx, obj) {
            return obj instanceof Function;
        }

        var obj = function (a, b) {
            return a + b;
        };
        obj[0] = 11;
        obj[1] = 9;

        var newArr = Array.prototype.filter.call(obj, callbackfn);

assert.sameValue(newArr[0], 11, 'newArr[0]');
assert.sameValue(newArr[1], 9, 'newArr[1]');