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the first half of http://codemix.com/blog/why-babel-matters … is stellar. the second half kinda misses the point that babel isn't a long-term solution.

@helloandre it assumes you want to pre-compile an interpreted language all the time for optimizations, not just minifying.

@helloandre if you're already building your code then why wouldn't you go the extra mile?

@sebmck because then you start blurring the lines between what the JIT should do and what the build step should do. Which i think is bad.

@helloandre You can be more lenient on your code and make certain assumptions that the JIT can't. Still always going to be the overhead…

@helloandre of allocating a function expression/closure for example. Your app likely won't care. JIT can't optimise that allocation away.