UNPKG

luhn-generator

Version:

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

11 lines (8 loc) 168 B
'use strict'; module.exports = function (str) { var tail = str.length; while (/[\s\uFEFF\u00A0]/.test(str[tail - 1])) { tail--; } return str.slice(0, tail); };