Regex for password must contain at least eight characters, at least one number and both lower and uppercase letters and special characters

Question

I want a regular expression to check that:

A password contains at least eight characters, including at least one number and includes both lower and uppercase letter

Answer 1

I've actually just copied the first answer here and turned it into a more ux-convenient regex which needs one upper, one lower and at least 8 chars but accepts everything "in between".

This one is an example-regex which requires

1. at least 8 characters length
2. at least one lowercase letter
3. at least one uppercase letter

IMPORTANT: This regex will also except all other characters e.g. numbers, special characters like $,#,! etc. - as long as the rules 1. to 3. match the input string

^(?=.*[a-z])(?=.*[A-Z]).{8,}$

Mind the "." alomst at the end of the regex. This will match almost any (and afaik any readable) character