jQuery active function

Question

I was trying to find some more information on the following jQuery function   jQuery active   It is described to test the number of active connections to a server and will evaluate true when the number of connections is zero   I could not find any information about this function on the jQuery site and was wondering if anyone knew where I could

User · Answer

For anyone trying to use jQuery active with JSONP requests  like I was  you ll need enable it with this   jQuery ajaxPrefilter function  options         options global   true        Keep in mind that you ll need a timeout on your JSONP request to catch failures

User · Answer

This is a variable jQuery uses internally  but had no reason to hide  so it s there to use   Just a heads up  it becomes jquery ajax active next release   There s no documentation because it s exposed but not in the official API  lots of things are like this actually  like jQuery cache  where all of jQuery data   goes    I m guessing here by actual usage in the library  it seems to be there exclusively to support   ajaxStart   and   ajaxStop    which I ll explain further   but they only care if it s 0 or not when a request starts or stops   But  since there s no reason to hide it  it s exposed to you can see the actual number of simultaneous AJAX requests currently going on     When jQuery starts an AJAX request  this happens   if   s global  amp  amp    jQuery active         jQuery event trigger   ajaxStart         This is what causes the   ajaxStart   event to fire  the number of connections just went from 0 to 1  jQuery active   isn t 0 after this one  and  0    true   this means the first of the current simultaneous requests started   The same thing happens at the other end   When an AJAX request stops  because of a beforeSend abort via return false or an ajax call complete function runs    if   s global  amp  amp    --jQuery active       jQuery event trigger   ajaxStop         This is what causes the   ajaxStop   event to fire  the number of requests went down to 0  meaning the last simultaneous AJAX call finished   The other global AJAX handlers fire in there along the way as well

[jquery] jQuery.active function

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