tvl-depot/assessments/semiprimes/server/lib/extras.ex
William Carroll c0a88ba7d5 Add moduledoc to Extras
9 out of 10 doctors agree that every module needs a doc. Ask your doctor if
moduledocs are right for you!
2020-12-11 22:48:12 +00:00

22 lines
373 B
Elixir

defmodule Extras do
@moduledoc """
Hosts utility functions intended to supplement the standard library.
"""
@doc """
Return an ascending range starting at `a` and ending at `b` (exclusive).
## Examples
iex> Extras.range(2, 5)
[2, 3, 4]
"""
def range(a, b) do
if b <= a do
[]
else
[a] ++ range(a + 1, b)
end
end
end