It's legitimately surprising that you would double down here instead of realize that your tooling is recompiling your code and showing you the result continuously, making your workflow essentially the same as the people you seem to feel so superior to.

They did read that sentence with comprehension. It is you who can't connect the lines. Your IDE already does typechecking and finds other issues for you. Basically the only thing that you are missing is the ability to run and test your program.