cc-validation
v0.0.7
Published
Credit Card Validator
Downloads
15
Maintainers
Readme
Credit Card Validator
Credit Card Number Validation using Luhn Algorithm.
Luhn Algorithm
Starting from the end of the card number double the value of every second digit
Subtracting 9 from any digit that is greater than 9
Taking sum of all the digits
If the modulo of the sum equal to 0 then the number is valid.
Installation
npm install cc-validation
Usage
var ccValidation = require("creditCardValidation");
var isValid = console.log(ccValidation.ccNumValidator("4111111111111111"));