Regex for Password validation in Javascript

Question

Regex Password complexity requires that any three of the following four characteristics must be applied when creating or changing a password.

• Alpha characters - at least 1 upper case alpha character
• Alpha characters - at least 1 lower case alpha character
• Numeric characters - at least 1 numeric character
• Special characters - at least 1 special character

I am trying with the following code, but its not working for special characters

(?=^.{6,}$)((?=.*\d)(?=.*[A-Z])(?=.*[a-z])|(?=.*\d)(?=.*[^A-Za-z0-9])(?=.*[a-z])|(?=.*[^A-Za-z0-9])(?=.*[A-Z])(?=.*[a-z])|(?=.*\d)(?=.*[A-Z])(?=.*[^A-Za-z0-9]))^.*

I want my regex to be validated against the following 4 cases

Match cases

• P@ssword
• Password1
• p@ssword1
• p@12345

Answer 1

I think that a regex you can use is:

(?=^.{6,}$)(?=.*[0-9])(?=.*[A-Z])(?=.*[a-z])(?=.*[^A-Za-z0-9]).*

I'm not sure why you have so many or operators in your regex but this one matches if:

• (?=^.{6,}$) - String is > 5 chars
• (?=.*[0-9]) - Contains a digit
• (?=.*[A-Z]) - Contains an uppercase letter
• (?=.*[a-z]) - Contains a lowercase letter
• (?=.*[^A-Za-z0-9]) - A character not being alphanumeric.