address-unit-types.js

const unitTypes = [ // https://public-dhhs.ne.gov/nfocus/HowDoI/howdoi/usps_address_unit_types.htm
        'APT',
        'BLDG',
        'BSMT',
        'DEPT',
        'FL',
        'FRNT',
        'HNGR',
        'KEY',
        'LBBY',
        'LOT',
        'LOWR',
        'OFC',
        'PH',
        'PIER',
        'REAR',
        'RM',
        'SIDE',
        'SLIP',
        'SPC',
        'STE',
        'STOP',
        'TRLR',
        'UNIT',
        'UPPR',
        '#' // I added this one
    ];