js-jan-code-check-digit-calculator

Calculator of JAN Check-digit for JavaScript/TypeScript.

Usage

import { getCheckDigit, addCheckDigit } from 'js-jan-code-check-digit-calculator';
 
const number = '456995111617'; // string
const digit = getCheckDigit(number);
console.log(digit); // 9
 
const janCode = addCheckDigit(number);
console.log(janCode) // 4569951116179