Today, at SXSW, I hosted a panel discussion on the “Secrets of JavaScript Libraries.” We set out to discuss the behind-the-scenes nitty-gritty code that powers the universal features of the most popular JavaScript libraries. I think the presentation went quite well. I think we could’ve, easily, done a 2 hour talk with all the content that we had (we had to chop off, at least, two sections at the e