Learning Functional Programming in Go

Partial function

If our function is not defined/consistent for all values in our domain, it's said to be a partial function (as opposed to a total function). If our function is inconsistent, then we run the risk of running into unexpected errors during runtime.

There are two main ways to solve this problem:

• We can solve this inconsistency by reducing the size of our domain to only positive integers
• We can use failure monads like either validation or disjunction to capture things that go wrong