Last month Joseph Smarr, Chief Platform Architect at Plaxo, came to the MoCo office to talk about High Performance JavaScript: Why Everything You’ve Been Taught is Wrong.

Joseph has tons of experience optimizing JavaScript for a large-scale AJAX application and gave a great presentation chock full of useful info for web app and Firefox chrome developers on improving the performance of JavaScript-based applications.

A video of Joseph’s presentation is now available, and the presentation slides are also online, so check it out.  Unless you’ve already seen it or are Joseph, you’re going to learn something.