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A Regular Expression for a Strong Password


If you want to create an application which accepts only strong password, then here is a solution for you. You can apply the following regular expression which creates a validation for you to allow only strong password.
(?=^.{8,}$)((?=.*\d)|(?=.*\W+))(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$
Description of this regular expression is as below:
Passwords will contain at least 1 upper case letter
Passwords will contain at least 1 lower case letter
Passwords will contain at least 1 number or special character
Passwords will contain at least 8 characters in length
Password maximum length should not be arbitrarily limited
let me know if you want any change in current regular expression according to your requirements.
Happy coding…

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