Generate random credit/debit card numbers for testing purposes.

Usage from command line (globally installed npm i -g cardgen):

cardgen visa discover -n 5

visa 4814371752577513 discover 6521713793937678 visa 4012795915725090 discover 6502205537914199 visa 4279615567473583

Available vendor names are: visa, master-card, diners-club, american-express, discover, jsb. Multiply vendors are acceptable.

It is possible to add new vendor, have a look at examples into the vendors directory.

-n flag is for repeating, in case no provided cli will take it as a number of vendors provided.

For the node module usage example have a look at bin/cardgen file.

Q. What does this code ..for (; i --> 0 ;) {.. means? A. This is fancy way to write reverse loop, which is arguably looks cleaner compared with classic version of it ..for(var i = array.length; i > 0; i--). In fact construction --> is combination of two operators > and --, so every step i get compared if it is still more than zero and decremented by one afteword.

This software created to be used for testing purposes only.