Provide check digit algorithms and calculators written in Go

Javascript function used to generate SSCC, GSIN, GTIN-8, GTIN-12, GTIN-13 & GTIN-14 check digit.

GS1 key generation and validation

Damm algorithm functions, a check digit algorithm that detects single-digit errors and adjacent transposition errors

A PHP library that calculates and verifies the check digit using the Damm algorithm.

A small project to learn more about Flask and Python. This service can get a number and returns a modulo-10 check digit.

A long represantation of a BIGINT for use in the Web with checksum

SaludAr - Turnos Electrónicos

This project it has two classes Email Validator , and check number if its two digits

A simple function that calculates the Luhn checksum for a given number

damm check-digit validator and generator

Damm, Luhn and Verhoeff algorithms

The C Programming repository consists of the basic codes in C language. It includes codes like reversing a number, finding the frequencies, Counting the digits. In a nutshell these codes are all about patterns, digits and numbers