Here’s my (current) .irbrc, with comments Ruby | copy code |?0102# I am including gems in my irb session. Therefore, the next require03require 'rubygems'04 05# wirble is a wonderful gem which add nice features to irb06require 'wirble'07 08# Dr. Nic's useful helper gem. It makes it so you can say:09# foo.map_by_bar10# instead of having to say:11# [...]