test/built-ins/Array/prototype/filter/15.4.4.20-9-c-iii-10.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.

/*---
esid: sec-array.prototype.filter
es5id: 15.4.4.20-9-c-iii-10
description: >
    Array.prototype.filter return value of callbackfn is a number
    (value is negative number)
---*/

        function callbackfn(val, idx, obj) {
            return -5;
        }

        var newArr = [11].filter(callbackfn);

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