card.js

card.js - parse and validate credit card number in javascript.

Features

• Credit card type detection based on IIN number. See more on wikipedia
• Credit card type detection for full length card number
• Luhn algorithm validation

Loading

The library is the single JavaScript file card.js (or minified, card.min.js).

It can be loaded via a script tag in an HTML document for the browser

<script src='./relative/path/to/card.js'></script>

(check examples/browser) or as a CommonJS, Node.js.

For Node, put the card.js file into the same directory as the file that is requiring it and use

var card = require('./card.js'); 

or put it in a node_modules directory within the directory and use require('card.js'). See example in examples/nodejs.

The library is also available from the npm registry, so

$ npm install card.js

will install this directory in a node_modules directory within the current directory.

Usage

card('4111111111111111').getType(); // output: visa
card('41').getType(); // output: visa
card('4111111111111111').isValid(); // output: true

Supported browsers

• Chrome
• Firefox
• Internet Explorer 9
• Safari
• Opera

Supported card types:

Issuing network	card type returned by getType
Visa	visa
Mastercard	mastercard
American Express	amex
Maestro	meastro
Diners Club	diners
Discover	discover
JCB	jcb
UATP	uatp
InterPayment	interpayment
InstaPayment	instapayment
China UnionPay	unionpay
Dankort	dankort