luhn-ruby

Very simple library to calculate and validate Luhn numbers .

Installation

Add this line to your application's Gemfile:

gem 'luhn-ruby'

And then execute:

$ bundle

Or install it yourself as:

$ gem install luhn-ruby

Usage

require 'luhn'

number = '4111111111111111'

Luhn.valid? number
# => true

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request