I find it interesting that he dismisses the use of Maybe. The monadic solution isn't clear, but when used as a Monoid, it's clear and easy to modify: https://g

I find it interesting that he dismisses the use of Maybe. The monadic solution isn't clear, but when used as a Monoid, it's clear and easy to modify: https://gist.github.com/anonymous/7a1829f61cf9302c188f80a7366e9803 https://gist.github.com/anonymous/7a1829f61cf9302c188f80a736...