blob: b8fbd51b3b8bd6a41c7e2852c1bbad2cc41c1db2 (
plain)
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
29
30
31
32
33
34
35
|
// 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.some
description: >
Array.prototype.some returns false if 'length' is 0 (subclassed
Array, length overridden with obj w/o valueOf (toString))
---*/
foo.prototype = new Array(1, 2, 3);
function foo() {}
var f = new foo();
var o = {
toString: function() {
return '0';
}
};
f.length = o;
// objects inherit the default valueOf method of the Object object;
// that simply returns the itself. Since the default valueOf() method
// does not return a primitive value, ES next tries to convert the object
// to a number by calling its toString() method and converting the
// resulting string to a number.
function cb() {}
var i = f.some(cb);
assert.sameValue(i, false, 'i');
reportCompare(0, 0);
|