In Elixir, modules group functions together, much like a namespace. Usually, functions that reside in the same module are related to one another. You create a module using the defmodule construct:
iex> defmodule StringHelper do...> def palindrome?(term) do...> String.reverse(term) == term...> end...> end{:module, StringHelper, <<70, 79, 82, 49, 0, 0, 4, 0, 66, 69, 65, 77, 65, 116, 85, 56, 0, 0, 0, 119, 0, 0, 0, 11, 19, 69, 108, 105, 120, 105, 114, 46, 83, 116, 114, 105, 110, 103, 72, 101, 108, 112, 101, 114, 8, 95, 95, ...>>, {:palindrome?, 1}}iex> StringHelper.palindrome?("abcd")falseiex> StringHelper.palindrome?("abba")true
In the preceding example we're also creating a function inside the StringHelper module, ...
