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chrisaiv on 10/21/07


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ruby validation


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Validate a Credit Card Number

Published in: Ruby 

Download the Credit Card Library from Lucas Carlson user$ sudo gem install creditcard

Plain TextExpand 
  1. #Checksum Digit, there is an algorithm that checksum must match
  2. #A. Import the libraries
  3. require 'rubygems'
  4. require 'creditcard'
  5.  
  6. #B. Boolean test as to whether this number is a valid credit card
  7. puts '5276 4400 6542 1319'.creditcard?
  8.  
  9. #C. Check the type of credit card it is
  10. puts '5276 4400 6542 1319'.creditcard_type

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