Elixir Language Functions Named Functions & Private Functions
Example
Named Functions
defmodule Math do
# one way
def add(a, b) do
a + b
end
# another way
def subtract(a, b), do: a - b
end
iex> Math.add(2, 3)
5
:ok
iex> Math.subtract(5, 2)
3
:ok
Private Functions
defmodule Math do
def sum(a, b) do
add(a, b)
end
# Private Function
defp add(a, b) do
a + b
end
end
iex> Math.add(2, 3)
** (UndefinedFunctionError) undefined function Math.add/2
Math.add(3, 4)
iex> Math.sum(2, 3)
5
