I tried using j for some of my advent of code puzzles. I found it wasn’t totally suitable for a lot of the challenges, but I had fun learning about J nonetheless.
I had an issue at work where some database writes were throwing errors within a thread, and the error was being silently eaten when the thread died.
Bayes’ theorem is a way of determining the likelihood of an event A given that another event B has occurred. It’s a way of making an educated guess without much information to go on.
rein is a gem for adding database constraints in rails migrations. It’s always been possible to set these up using execute calls in the migration, but rein makes it look rails-y.