The Fiscal Code | learn JavaScript expert level

- Each person in Italy has a unique identifying ID code issued by the national tax office after the birth registration: the Fiscal Code.

Given an object containing the personal data of a person (name, surname, gender and date of birth) return the 11 code characters as a string following these steps:

Generate 3 capital letters from the surname, if it has:
- At least 3 consonants then the first three consonants are used. (Newman ➞ NWM).
- Less than 3 consonants then vowels will replace missing characters in the same order they appear (Fox ➞ FXO | Hope ➞ HPO).
- Less than three letters then "X" will take the third slot after the consonant and the vowel (Yu ➞ YUX).

Generate 3 capital letters from the name, if it has:
- Exactly 3 consonants then consonants are used in the order they appear (Matt ➞ MTT).
- More than 3 consonants then first, third and fourth consonant are used (Samantha ➞ SNT | Thomas ➞ TMS).
- Less than 3 consonants then vowels will replace missing characters in the same order they appear (Bob ➞ BBO | Paula ➞ PLA).
- Less than three letters then "X" will take the the third slot after the consonant and the vowel (Al ➞ LAX).

Generate 2 numbers, 1 letter and 2 numbers from date of birth and gender:
- Take the last two digits of the year of birth (1985 ➞ 85).
- Generate a letter corresponding to the month of birth (January ➞ A | December ➞ T) using the table for conversion included in the code.
- For males take the day of birth adding one zero at the start if is less than 10 (any 9th day ➞ 09 | any 20th day ➞ 20).
- For females take the day of birth and sum 40 to it (any 9th day ➞ 49 | any 20th day ➞ 60).

Notes:
- Code letters must be uppercase.
- Date of birth is given in D/M/YYYY format.
- The conversion table for months is already in the starting code.
- Y is not a vowel.