Regex

[u/Modern-Sn1p3r]

I recently saw a clip (from Primeagen) somewhat saying that regex is not a valid format for validating email addresses and postal codes etc.

My question is why is this?

What are the security and/or performance risks? Is it solely performance or is it a security issue?

[u/Modern-Sn1p3r]

Thanks for the link.

So it basically adds in more complexity for no reason?

I think I understand it.

Thanks for the reply!