jQuery performance in IE7

Jacob Farber jacob.farber.work at gmail.com
Wed Jan 28 14:14:20 UTC 2009


It looks like there's a lot of DOM injection going on in tight loops - have
you thought of using "setTimeout(function(){},0)" to free the browser to
refresh and render periodically?

On Wed, Jan 28, 2009 at 2:29 AM, Lovemore Nalube <lovenalube at gmail.com>wrote:

> Hey Colin,
>
> Here's the actual code:
> https://source.sakaiproject.org/contrib/uct/evaluation-pilot08-UI/tool/src/webapp/content/js/reorderUtils.js
> .
>
>
> ************************
> Lovemore Nalube
> Online Learning Environments Developer
> Centre for Educational Technology
> University of Cape Town
> www.cet.uct.ac.za
>
> /* Work Email: lovemore.nalube at uct.ac.za
> /* Cell: 076 186 1244
> /* GTalk: lovenalube at gmail.com
>
>
> On Tue, Jan 27, 2009 at 6:28 PM, Colin Clark <colin.clark at utoronto.ca>wrote:
>
>> Lovemore,
>>
>> On 27-Jan-09, at 2:15 AM, Lovemore Nalube wrote:
>>
>>  I've reached a stage in which the preliminary phase nears completion,
>>> however when testing the UI in IE7, there is a huge performance overhead.
>>> FF3 seems to hold the load quite easily. In a nutshell what freezes the
>>> browser is trying to filter through a response object to get elements that
>>> exist within and then show these on the UI. Has anyone ever had issues with
>>> jQuery performance/freezing the browser like this?
>>>
>>> I invite you to checkout the code at
>>> https://source.sakaiproject.org/contrib/uct/evaluation-pilot08-UI. The
>>> page with the new UI is Evaluations dashboard > My Templates > Edit Template
>>>
>>
>> Do you have a link to the specific JavaScript source code that you're
>> seeing the problem in? We can probably lend a hand in optimizing your
>> implementation.
>>
>> Colin
>>
>> ---
>> Colin Clark
>> Technical Lead, Fluid Project
>> Adaptive Technology Resource Centre, University of Toronto
>> http://fluidproject.org
>>
>>
>
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>


-- 
Jacob Farber
University of Toronto - ATRC
Tel: (416) 946-3002
www.fluidproject.org
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