Question

I need help with a RegEx for a password. The password must contain at least one special char (like Ҥ$&/!) AND a number.

E.g. a password like “EdfA433&” must be valid whereas “aASEas§ö” not as it contains not a number.

I have the following RegEx so far:

^(?=.*[0-9])(?=.*[a-zA-Z]).{3,}$

But this one is obviously checking only for a number. Can anyone help?

Answer 1

You’re better off just using multiple more simple regular expressions: any code checking anything like this won’t be performance sensitive, and the additional complexity of maintenance given a more complex regexp probably isn’t justifiable.

So, what I’d go for:

var valid = foo.match(/[0-9]/) && foo.match(/["§$&/!]/);

I wonder if you really want to define special characters like that: Does é count as a special character? Does ~ count as a special character?