[ka-Map-users] compressed javascript update

[Chris Tweedie]

Paul, in my experience GZIP on javascript files more than compensates
for any high-level comment and whitespace removal. Perhaps you're making
it more cumbersome using getcjs+GZIP when GZIP itself may be more than
adequate?

I did something similar last year at
http://chris.narx.net/2005/09/07/time-to-tweak-your-javascript-bloat/
which was done on the first kamap release and the arcims4 html client.

Chris

-----Original Message-----
From: ka-map-users-bounces at lists.maptools.org
[mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of Paul
Spencer
Sent: Wednesday, 22 March 2006 3:11 AM
To: ka-map-users at lists.maptools.org
Subject: [ka-Map-users] compressed javascript update

All,

I've gone through all the code to get it to work with getcjs.php  
again.  I've also modified getcjs.php to handle compressing multiple  
files into a single file and to use ob_gzhandler (gzip compression).   
AFAIK, gzip compression is seamless and negotiates with the browser  
to determine if the browser supports it or not.

Compression strips white space and comments (but its not very  
intelligent, so it can be fooled).  Combining gzip compression with  
white space removal and comment stripping has resulted in a reduction  
of the size of the javascript from

kaKeymap.js : 13.1 kb
kaLegend.js : 20.1 kb
kaMap.js : 75.9 kb
kaQuery.js : 9.1 kb
kaTool.js : 14.2 kb
scalebar.js : 23.1 kb
startUp.js : 15.1 kb

total: 170.5 kb

to a compressed value of: 20.7 kb

To enable this in your application, follow the comments at the top of  
index.html in the cvs version.

Cheers

Paul

+-----------------------------------------------------------------+
|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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