Inserting One New Element into Hashes of Varying Sizes - Pat Shaughnessy

I've started working on a new edition of Ruby Under a Microscope that covers Ruby 3.x. I'm working on this in my spare time, so it will take a while. Leave a comment or drop me a line and I'll email you when it's finished. RUM includes a series of “experiments:” simple code snippets that show evidence the book’s explanations are accurate. One of the first experiments I wrote back in 2013, Experiment 7-2 is a fun way to see exactly when Ruby increases the number of bins in a hash table. The experiments in RUM are a great way to see for yourself how Ruby works. They also keep me honest; in fact, I ran this code again recently using Ruby 3.4.1 and saw different results than what I expected!.