I was astonished how fast plain-old JS has become (probably closer to c++ than to Ruby or Python, in terms of performance - even more impressive with support fo

I was astonished how fast plain-old JS has become (probably closer to c++ than to Ruby or Python, in terms of performance - even more impressive with support for stuff such as asm.js). And recent versions of ECMAScript/JS (which are gradually albeit slowly become more and more available for real-world usage) actually make for a pretty nice language.