Regex for combination of at least one alphanumeric and special character

Question

I need to create a regex which contains at least 1 special character, and at least 1 number with alphabets.

Answer 1

You may try the following pattern:

^(?=.*[0-9])(?=.*[^A-Za-z0-9])(?=.*[A-Za-z]).*$

Explanation:

(?=.*[0-9])          assert one number present
(?=.*[^A-Za-z0-9])   assert one special character present
(?=.*[A-Za-z])       assert one alpha present

Note that I have defined a special character as being anything not alphanumeric. If instead you have a list of special characters, then you can modify the middle lookahead in my pattern.