Getting help in IEx console

Introduction#

IEx provides access to Elixir documentation. When Elixir is installed on your system you can start IEx e.g. with iex command in a terminal. Then type h command on IEx command line followed by the function name prepended by its module name e.g. h List.foldr

Listing Elixir modules and functions

To get the list of Elixir modules just type

h Elixir.[TAB]

Pressing [TAB] autocompletes modules and functions names. In this case it lists all modules. To find all functions in a module e.g. List use

h List.[TAB]