But there's no jQuery, etc. It's a somewhat nicer way to work with Java since you aren't forced into I-don't-care-about-it-exception-catching hell and Map<Map<Map<...>>> madness, but compared to Jython or Clojure it doesn't match up. You can get a headless jQuery working with Rhino, though it's not as simple as it should be.
It's a decent language, though. Here's a comparison of JS to Ruby for some of the stuff people generally love Ruby for. JS comes out looking pretty decent.
None of that is true for JS. I don't think Crockford thought his remark through.
1. Modern (JS) runtimes have JITs that can generate code
almost as fast as C++.
2. You can write purely functional code in JS.
3. JS has arguably less features than R5RS Scheme, which
itself is hard to fit on half a page.