How to add Russian letters to regular expression?

Question

Regular Expressions

^(?=.*[az])(?=.*[AZ])(?=.*\d)[a-zA-Z\d]{6,}$
- regular expression for validating a password for small and capital letters (English) and numbers
how to fix it so that there are small and capital letters (English or Russian) and numbers

Answer 1

Exactly the same as you have already added English letters.
Instead [a-zA-Z], you can use the shortened form [Az]