Hello, I'm trying to generate a filter to detect empty content in user data with a REGEX but I can't find what is the REGEX for empty. What should I use ? Thanks in advance.
Detect Empty User Data
I do not really user REGEX for anything so I would recommend that you consult the documentation for REGEX, or google it.
This thread might help.
https://stackoverflow.com/questions/19127384/what-is-a-regex-to-match-only-an-empty-string