It was fun to do my first presentation on ExtJS at the Southern California Rock and Roll Code Camp at Fullerton.  It was also great to see so many friends.  As promised, I’m attaching the code and PowerPoint here.  I started my talk with a little introduction on RIA (rich internet applications), then moved into ExtJS.  I realize now, that because the audience all pretty much knew the RIA story, it would have been better to just dive into ExtJS.  As it was, I ran out of time.  Next time, I’ll go with plan B.

My guess is we had about 50 people in the room.  I took a picture about 10 minutes before class started that I’m showing below.  I’m thinking a lot more showed up after the picture.  The guy in the second row mentioned that they should be taking a picture of me, but then, I was running out of prep time so I figured I better go with what I had.

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Mats Bryntse, a great web developer and ExtJS expert has written a very cool utility that let’s you see how well the different JavaScript frameworks play with each other.  Specifically, he looks at many of the most popular frameworks and calculates how many globals each one uses.  This is important because if you happen to have multiple frameworks in your application (which is completely reasonable to do), you may have problems.  The URL is as follows and must be run in Firefox).

http://mankz.com/code/GlobalCheck.htm

Here is an example result:

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