As noted in another sibling comment, f# has exceptions and they're a good tool to use. Some folks opt to go full "railroad-oriented programming" mode, but usin

As noted in another sibling comment, f# has exceptions and they're a good tool to use. Some folks opt to go full "railroad-oriented programming" mode, but using both has more benefits. Here is a good article on it: https://medium.com/@lanayx/practical-error-handling-in-f-c3c423e4151f https://medium.com/@lanayx/practical-error-handling-in-f-c3c...