To add to that, regex mojo has just kind of built up in my head over years. It's not something a topic I was able to study, learn, and retain (well). Every ti

To add to that, regex mojo has just kind of built up in my head over years. It's not something a topic I was able to study, learn, and retain (well). Every time I stumble onto a regex use case I need to understand & don't, I level up at that time, and that's always been totally fine. A few months ago I needed to add a regex for validating IPv4 addresses that were in a non-standard format. I had to do a little research, then I wrote & tested it, and promptly forgot 90% of what I had just learned.