When was the last time you looked at it? Javascript is not small anymore. ECMAScript specification is over 800 pages, only a few hundred pages smaller than Java's.
I’ve read the latest version of the specs of all these languages in detail.
I’ve worked professionally on a team implementing Ruby, the latest version of JavaScript, and Java at the same time, using the same language implementation system, so I can directly compare.
JavaScript is simplest by far. There’s quite a lot of sugar now, but the core semantics are small and simple. The core semantics of a language like Ruby are an order of magnitude more complicated.
