Elixir Capture (&) operator

Section

things = [1, 2, 3, 4]

capture_add_one_arity = &(&1 + 1)
capture_add_two_arity = &(&1 + &2)

fn_add_one_arity = fn i -> i + 1 end
fn_add_two_arity = fn i, n -> i + n end

defmodule SomeModule do
  def def_add_one_arity(i), do: i + 1
  def def_add_two_arity(i, n), do: i + n
end

def_add_one_arity = &SomeModule.def_add_two_arity(&1, 1)

# [1, 2, 3, 4]
things
# [2, 3, 4, 5]
|> Enum.map(capture_add_one_arity)
# [3, 4, 5, 6]
|> Enum.map(fn_add_one_arity)
# [4, 5, 6, 7]
|> Enum.map(def_add_one_arity)