I think when it comes to type system in UX-land, you go all the way or not at all.
State of the Art JavaScript in 2016
Francois Ward

I respect your personal opinion, but have you heard about optional typing? Everything is not black and white. There’s a good value to keep the balance. Typescript has its own use cases. More on that here: https://medium.com/@alexewerlof/when-should-i-use-typescript-311cb5fe801b

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