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2 points by hjek 117 days ago | link | parent

I actually like `#<void>`, because it makes more of a distinction between pure and impure functions.

I read a good blog post[0] recently on how not distinguishing makes it difficult to guess the behaviour of simple and short code snippets (in JavaScript, but the same could apply to Arc).


1 point by akkartik 117 days ago | link

There's definitely a tension between being a concise language and being a safe language. Arc doesn't try to help newcomers avoid simple mistakes. It gives them enough rope to hang themselves, like with unhygienic macros. That's partly why I stopped using Arc to teach my students programming (