You do not need to know much, if any, Erlang to be productive in Elixir. Some libraries you might call will be written in Erlang, but those tend to have been ar

You do not need to know much, if any, Erlang to be productive in Elixir. Some libraries you might call will be written in Erlang, but those tend to have been around long enough that you don't need to look inside. Being able to read the Erlang docs can be helpful, because the OTP has a ton of helpful functions, but that's mostly just learning what Erlang calls its types.