js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-c-iii-5.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

// 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.map
description: >
    Array.prototype.map - value of returned array element can be
    changed or deleted
---*/

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

var obj = {
  0: 11,
  1: 9,
  length: 2
};
var newArr = Array.prototype.map.call(obj, callbackfn);

var tempVal = newArr[1];
delete newArr[1];

assert.notSameValue(tempVal, undefined, 'tempVal');
assert.sameValue(newArr[1], undefined, 'newArr[1]');

reportCompare(0, 0);