test/built-ins/Array/prototype/reduce/15.4.4.21-9-7.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.reduce
es5id: 15.4.4.21-9-7
description: >
    Array.prototype.reduce stops calling callbackfn once the array is
    deleted during the call
---*/

        function callbackfn(prevVal, curVal, idx, obj) {
            delete o.arr;
            return prevVal + curVal;
        }

        var o = new Object();
        o.arr = ['1', 2, 3, 4, 5];

assert.sameValue(o.arr.reduce(callbackfn), "12345", 'o.arr.reduce(callbackfn)');
assert.sameValue(o.hasOwnProperty("arr"), false, 'o.hasOwnProperty("arr")');