this is an interesting analysis of the runtime performance of the various
eval-like options. in general it's not big difference between eval and
Function across browsers.

http://weblogs.asp.net/yuanjian/archive/2009/03/22/json-performance-comparison-of-eval-new-function-and-json.aspx

On Tue, May 19, 2009 at 7:20 PM, John Resig <jere...@gmail.com> wrote:

> I don't remember the original discussion/change, off-hand. If YUIMin is
> still able to generate an adequate file size using Function then I don't see
> why we shouldn't switch.
>
> --John
>
>
>
> On Tue, May 19, 2009 at 6:46 PM, Andrea Giammarchi <
> andrea.giammar...@gmail.com> wrote:
>
>> John, can I ask you why you did not chose Function(string)() ? YUIMin, if
>> I am not wrong, works with Function because there are less problems with the
>> external scope ( Function works in the global one, so the only problem is
>> "arguments" rather than possible variables that are not globals )
>>
>>
>> On Tue, May 19, 2009 at 11:32 PM, John Resig <jere...@gmail.com> wrote:
>>
>>> That's specifically being done to allow YUIMin to properly compress
>>> jQuery (it sees an eval and assumes that it can't be compressed, but using
>>> that technique allows it to work).
>>>
>>> --John
>>>
>>>
>>>
>>> On Tue, May 19, 2009 at 5:22 PM, Justin Meyer <justinbme...@gmail.com>wrote:
>>>
>>>>
>>>> I assume there must be a good reason, but why is window['eval'] used
>>>> as opposed to window.eval in httpData?  This has some issues in rhino
>>>> for reasons discussed here:
>>>>
>>>>
>>>> http://www.mail-archive.com/dev-tech-js-engine-rh...@lists.mozilla.org/msg00664.html
>>>>
>>>> I know jQuery's tests run in rhino, but perhaps not XHR JSON requests?
>>>>
>>>> Is there something that you are doing to rhino (I'm not in strict
>>>> mode) that allows this?
>>>>
>>>> Thanks for your help.
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>>
>
> >
>


-- 
Christopher Thatcher

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