elm-luhn
Validate numbers using the Luhn algorithm. Can be used when writing e.g. validators for credit cards or other numbers that use the Luhn algorithm for basic validation.
Installation
elm-package install ahstro/elm-luhnUsage
import Luhn
if Luhn.isValid "1234567812345670"
"Yay"
else
"Nay"
case Luhn.validate "1234567812345670" of
Ok numberString ->
numberString ++ " is valid" -- "1234567812345670 is valid"
Err error ->
errorMore examples are available in the /tests folder.
