waiting in javascript

[rravenn]

I need to wait for a specific set of evnets to happen before I do something (it's multiple xmlhttprequests and I need them all to be finished and some processing to take place).
Here's how I do it:

while (this.resources.find( function(v,i) { return v.state < 2 } )) { alert("test"); }

(.find is prototype.js thing that finds an element in some collection according to the function result, I tried to replace it with common for loop and the problem persists).

With alert(as shown here) everything works - I click ok, by that time all requests are loaded and the code continues; without alert, however, firefox hangs and (I suppose) the code that handles xmlhttp request completion never fires, state is never set (it's a custom field I defined) so the browser is dead.

Is there any way to set a delat in javascript? I know of settimeout but its application here would be really ugly...

 

[BillyRayPreachersSon]

setTimeout is really the best method to use if you need a delay. Using while or for, or any other loop statement cn csuse your browser to appeawr to lock up, due to the tight loop running.

Hope this helps,
Dan



Coedit Limited - Delivering standards compliant, accessible web solutions

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[rravenn]

Yeah that's the problem
So there's no way to add a delay inside a loop?

 

[BillyRayPreachersSon]

Not without potentially hanging the browser or re-architecting your loop to use setTinmeout, no.

Dan



Coedit Limited - Delivering standards compliant, accessible web solutions

[tt]Dan's Page [blue]@[/blue] Code Couch

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