He made many points, Javascript not having great tools and IDE's is only one of them.

It's a valid one though, the Javascript IDE's out there aren't very good. However, that's a function of community support, not language quality. Personally, I don't use an IDE for javascript or RoR programming, I just use Textmate.

I use Eclipse for Java programming, and I don't think I would want to program in Java without it. Maybe it says something about the languages themselves that they require an IDE to develop in.