I imagine they expect that if you’ll be using Elixir at any capacity, you’ll have the docs in front of you, which details all the functions available in the mod

I imagine they expect that if you’ll be using Elixir at any capacity, you’ll have the docs in front of you, which details all the functions available in the modules, as well as the parameters they expect. https://hexdocs.pm/elixir/1.15.4/String.html https://hexdocs.pm/elixir/1.15.4/String.html