Romanian CNP

cnp.ts

/**
 * Validate CNP
 * @param   {string}  value CNP
 * @returns {boolean} Valid or not
 */
export const cnp = (value: string) => {
  var re = /^\d{1}\d{2}(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])(0[1-9]|[1-4]\d| 5[0-2]|99)\d{4}$/,
    bigSum = 0,
    rest = 0,
    ctrlDigit = 0,
    control = '279146358279',
    i = 0;

  if (re.test(value)) {
    for (i = 0; i < 12; i++)
      bigSum += Number(value[i]) * Number(control[i]);
    ctrlDigit = bigSum % 11;
    if (ctrlDigit === 10)
      ctrlDigit = 1;

    if (ctrlDigit !== parseInt(value[12], 10)) return false;
    else return true;
  }

  return false;
};