I’ve been reading “Introduction to Elixir” and I’m trying to understand where List.foldl and List.foldr would be useful. Basically, I’m looking for a use case. In what situation would the lightbulb go on that hey I should fold the list in this situation.
I believe List fold is very cheap to use (as long as it’s List.foldl as it’s tail recursive) but many people fail to understand a situation where it may be the tool for the job.
Thanks!
