Indeed. undefined works, null doesn't.
On Fri, Oct 3, 2008 at 2:30 PM, Andrea Giammarchi <
[EMAIL PROTECTED]> wrote:
> Will it speed up?
>
> Object.tainted = function(){
> for(undefined in{})
> return true;
> return false;
> };
>
>
>
> On Fri, Oct 3, 2008 at 6:27 PM, Ariel Flesler <[EMAIL PROTECTED]> wrote:
>
>> Yeah, I think the same. I think the env is tainted if you ADD a new
>> method. Of course modifying String.prototype.split would also taint it but I
>> don't think anyone will do that w/o making it backwards compatible to the
>> native method.
>>
>> The main concern, I think, is perfomance. I'd like to see some benchmarks
>> (can't get into that myself right now).
>> If someone wants my benchmarker, feel free to use.
>>
>> As a small note, I'd save Object.prototype into a local var inside
>> jQuery's scope. That should boost the speed a bit.
>> It's [local var] vs [global var + attribute] on each iteration.
>>
>> On Fri, Oct 3, 2008 at 2:08 PM, John Resig <[EMAIL PROTECTED]> wrote:
>>
>>>
>>> > alert(Object.tainted()); // false
>>> > alert({}); // wof wof
>>>
>>> I think we're ok with that case - since we only want to prevent jQuery
>>> from breaking when the Object.prototype is manipulated (diddling with
>>> the Object.prototype.toString method would be weird, but it wouldn't
>>> affect how jQuery works, I wouldn't think).
>>>
>>> --John
>>>
>>>
>>>
>>
>>
>> --
>> Ariel Flesler
>> http://flesler.blogspot.com
>>
>>
>>
>
> >
>
--
Ariel Flesler
http://flesler.blogspot.com
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