You can externalize the document.ready call if you choose, I do it all the
time.

As for putting it at the bottom of the page, I'd say no. Putting it in an
external JS file, with the ready call makes it so that code is not run until
the entire DOM is ready anyway.


andy 

-----Original Message-----
From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On
Behalf Of kgosser
Sent: Tuesday, April 14, 2009 10:28 AM
To: jQuery (English)
Subject: [jQuery] Should $(document).ready() be external? And should it be
placed at the bottom of the page?


Hey all,

Two quick questions for you. I couldn't find the answers while searching...
This would be a great thing to add to the jQuery FAQ, by the way.


(1) Is it advisable to place a page's $(document).ready() stuff in an
external .js file?

I've been doing a lot of reading and research on optimizing my front end
code, and YSlow seems to make a big deal of placing code externally if
possible for caching reasons. I understand the usefulness of placing the
code in an external document for that reason, however, the problem is that
there are a lot of functions for button and link clicks, shows/hides, etc.,
that are unique to that page and used differently on other pages.

Thus, putting it externally means it would most likely have to be in an
independent file just for that page... which means an added HTTP request
which is really the speed killer.

So anyways, looking for thoughts on this one.


(2) Is it advisable to place the $(document).ready() at the bottom of the
page right before the closing BODY tag?

Also when doing my research, I've seen that YSlow makes a big deal of this
as well. I'm sure many of you on here have discussed it or thought about it
yourself.

My question though is does it make sense to put the ready() code at the
bottom? Does it help? Is it useful? Will it break?


Thanks in advance for any feedback. Take care everyone.


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