I'm fascinated by scripted programming languages, with the dynamic compilation at run-time from the source code text.
JavaScript is a strange animal. Java, because it looks like Java, but has very little similarity with it in concept and operation. A little OO, but with the strange prototype-based inheritance. No classes at all, only physical objects. And so on..
I had to do some coding in JavaScript and started to read the ECMA Standards..
Besides of that this very site is converted from light-weight markup text files to static HTML pages by a JS file under WSH (cscript).