javascript example patterns for tax code and password validator

tax code js validator
"[A-Z]{6}[0-9]{2}[A-Z]{1}[0-9]{2}[A-Z]{1}[0-9]{3}[A-Z]{1}";
"^[a-zA-Z]{6}[0-9]{2}[abcdehlmprstABCDEHLMPRST]{1}[0-9]{2}([a-zA-Z]{1}[0-9]{3})[a-zA-Z]{1}$";
" ^[A-Z]{6}[A-Z0-9]{2}[A-Z][A-Z0-9]{2}[A-Z][A-Z0-9]{3}[A-Z]$";
"/[a-zA-Z]{6}[0-9]{2}[a-zA-Z][0-9]{2}[a-zA-Z][0-9]{3}[a-zA-Z]/";
"[a-z]{6}\d{2}[abcdehlmprst]\d{2}[a-z]\d{3}[a-z]";


password js validator
//Almeno un numero, almeno una minuscola, almeno una maiuscola, almeno 8 caratteri
ng-pattern="/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,20}$/"