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Comment by zingar

20 days ago

Tests make me faster. Dynamic or not feels irrelevant when I consider how much slower I’d be without the fast feedback loop of tests.

You can (and probably should) still do tests, but there's an entire class of errors you know can't happen, so you need far less tests, focusing only on business logic for the most part.

Static type checking is even faster than running the code. It doesn't catch everything, but if finding a type error in a fast test is good, then finding it before running any tests seems like it would be even better.