On Jul 16, 2008, at 7:48 PM, Andy Matthews wrote:
Packed takes the source code and runs it through an algorithmn which
compresses variable names, methods, code, etc into one big line of
javascript. You can find more information about it, and pack your
own code,
here:
http://dean.edwards.name/packer/
Minified uses server side compression to further reduce the file size.
Drawback of this method is that your server needs to be equipped to
offer
this version, and the file needs to be de-compressed on the client
side.
Minifying does not use server side compression. Minifying means
removing all unnecessary characters from source code, without changing
its functionality.
Minified JavaScript files are usually further packed by gzipping them.
This is done on the fly by server. Apache comes with mod_deflate
module by default. This handles gzipping.
Packed files have to be uncompressed on client side too. While gzipped
files are uncompressed by browser natively, packed files are
"uncompressed" calling JavaScript eval() everytime page loads.
--
Mika Tuupola
http://www.appelsiini.net/
