https://github.com/dmi3y/cardgen

Randomized credit/debit card number generator with cli
https://github.com/dmi3y/cardgen

algorithm cli debit-card-numbers luhn-algorithm random random-generation

Last synced: 2 months ago
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Randomized credit/debit card number generator with cli

• Host: GitHub
• URL: https://github.com/dmi3y/cardgen
• Owner: dmi3y
• Created: 2015-10-01T08:22:27.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-10-05T06:46:10.000Z (over 9 years ago)
• Last Synced: 2024-10-04T04:18:10.297Z (4 months ago)
• Topics: algorithm, cli, debit-card-numbers, luhn-algorithm, random, random-generation
• Language: JavaScript
• Size: 176 KB
• Stars: 5
• Watchers: 2
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## Card number generator

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.

## FAQ

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.

## TODO

- Split out cli and core generator as a separate modules

- Make use in browser and other environments

## Disclaimer

This software created to be used for testing purposes only.