I wonder why we haven't seen yet some more optimisation for JS. The only thing I'm aware of is the Google Closure Compiler. With everyone using TypeScript, ther

I wonder why we haven't seen yet some more optimisation for JS. The only thing I'm aware of is the Google Closure Compiler. With everyone using TypeScript, there must be a way to use all that type information to make JS run more efficiently, or compile parts of your TypeScript code.