fast-luhn

A fast Luhn algorithm for validating credit cards

Usage no npm install needed!

<script type="module">
  import fastLuhn from 'https://cdn.skypack.dev/fast-luhn';
</script>

README

fast-luhn tests

A fast Luhn algorithm for validating credit cards. Adapted from ShirtlessKirk's popular gist.

Installing

$ npm install fast-luhn

API

luhn(number) -> Boolean

Returns true/false depending on whether the Luhn checksum is valid

number

Required
Type: string

A credit card number.

License

MIT © Ben Drucker