codicefiscalejs-node/src/lib/constants.js

A Node.js library to compute, validate and reverse Italian Tax Code (codice fiscale)

module.exports.MONTH_CODES = [
    'A',
    'B',
    'C',
    'D',
    'E',
    'H',
    'L',
    'M',
    'P',
    'R',
    'S',
    'T'
  ]
  
  module.exports.CHECK_CODE_ODD = {
    0: 1,
    1: 0,
    2: 5,
    3: 7,
    4: 9,
    5: 13,
    6: 15,
    7: 17,
    8: 19,
    9: 21,
    A: 1,
    B: 0,
    C: 5,
    D: 7,
    E: 9,
    F: 13,
    G: 15,
    H: 17,
    I: 19,
    J: 21,
    K: 2,
    L: 4,
    M: 18,
    N: 20,
    O: 11,
    P: 3,
    Q: 6,
    R: 8,
    S: 12,
    T: 14,
    U: 16,
    V: 10,
    W: 22,
    X: 25,
    Y: 24,
    Z: 23
  }
  
  module.exports.CHECK_CODE_EVEN = {
    0: 0,
    1: 1,
    2: 2,
    3: 3,
    4: 4,
    5: 5,
    6: 6,
    7: 7,
    8: 8,
    9: 9,
    A: 0,
    B: 1,
    C: 2,
    D: 3,
    E: 4,
    F: 5,
    G: 6,
    H: 7,
    I: 8,
    J: 9,
    K: 10,
    L: 11,
    M: 12,
    N: 13,
    O: 14,
    P: 15,
    Q: 16,
    R: 17,
    S: 18,
    T: 19,
    U: 20,
    V: 21,
    W: 22,
    X: 23,
    Y: 24,
    Z: 25
  }
  
  module.exports.OMOCODIA_TABLE = {
    0: 'L',
    1: 'M',
    2: 'N',
    3: 'P',
    4: 'Q',
    5: 'R',
    6: 'S',
    7: 'T',
    8: 'U',
    9: 'V'
  }
  
  module.exports.OMOCODIA_TABLE_INVERSE = {
    'L': '0',
    'M': '1',
    'N': '2',
    'P': '3',
    'Q': '4',
    'R': '5',
    'S': '6',
    'T': '7',
    'U': '8',
    'V': '9'
  }
  
  module.exports.CHECK_CODE_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'