I think this is good advice. There are lots of links to an exact piece of code if you go to stack overflow. But few detailed discussions of how you get to the right answer and that's really helpful to beginners.

Julia Evans, who is currently in the front page of HN again, basically writes a variant of TIL all the time.

https://jvns.ca/blog/2022/11/06/making-a-dns-query-in-ruby-f...