If you’ve worked on websites for any amount of time, there is a decent chance that you’ve encountered the need to validate credit card numbers at some point.  While there are a lot of compliance and security guidelines for working… Continue reading

ABAValidator (npm, github) is just a JavaScript validation module that works both in Node.js on the server as well as in a client’s browser.  It provides a simple way to validate routing numbers that conform to the American Banking Association… Continue reading