- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Thu, 23 Feb 2012 20:23:18 -0500
On 2/23/12 7:38 PM, Hans Muller wrote:
> Hans - It's useful if you want your listener to run after all of the
> load listeners have run, and code that you haven't written adds its own
> load listeners.
I strongly urge you to read
http://blogs.msdn.com/b/oldnewthing/archive/2005/06/07/426294.aspx
Or put another way, what will you do a year after this is standardized,
when the code that you haven't written is adding loadend listeners?
> The problem with using setTimeout() to schedule a listener to run after
> all of image's load listeners has run is that you've got to guess how long
> loading the image (or failing to load the image) and running its listeners
> will take.
No, you don't. You simply do:
function delayedLoadStuff() {
setTimeout(doTheThingIWant, 0);
}
img.addEventListener("load", delayedLoadStuff, false);
img.addEventListener("error", delayedLoadStuff, false);
> If applications where multiple image load listeners are added by different
> modules really are a rarity (I wouldn't know) then I'll be happy to
> concede that loadend isn't needed.
And they are aren't, then it doesn't help, except in the very short term
until those modules start using loadend themselves....
-Boris
Received on Thursday, 23 February 2012 17:23:18 UTC