edumdum / luhn

Validation and control key generation against Luhn formula in javascript.

luhn

Validation and control key generation for credit cards (and more) using Luhn algorithm.

Usage

In node.js

var Luhn = require('luhn-js');

Luhn.isValid('44542738505150162'); // false
Luhn.isValid('44540661970241257'); // true

Luhn.generate('4454066197024125'); // 44540661970241257

Luhn.getRemainder('44543353847144279'); // 8

API

isValid(value) -> Boolean

Check requirements.
Returns if the Luhn check digit is valid.

Required

• Value must be not Null
• Value must be of type String
• Value must respect format ^[0-9]{2,}$

generate(value) -> String

Check requirements.
Returns the Luhn check digit appended to the value.

Required

• Value must be not Null
• Value must be of type String
• Value must respect format ^[0-9]{1,}$

getRemainder(value) -> Number

Does NOT check requirements.
Returns the Luhn remainder.

Note: getRemainder(value) === 0 is equivalent to isValid(value). You may want to use this method instead of isValid if you ensure argument requirements on your side.

Required

• Value must be not Null
• Value must be of type String

luhn's Issues

Not working with IE11

It seems to me that this package is not working in the old IE11 browser. Can you confirm that?

Failed to minify the code from this file

There is an error when run build

Creating an optimized production build...
Failed to compile.

Failed to minify the code from this file:

    ./node_modules/luhn-js/src/luhn.js:15