In the previous post, we enjoyed playing around with Byebug, The de-facto debugger for Ruby on Rails Rails. This post for Beginners' Guide To Pry Gem For Debugging RoR Applications, will dwell on another debugging technique of debugging ruby on rails applications. Before getting into pry, As we know REPL, REPL stands for Read-Eval-Print-Loop. It’s a program that allows you to type Ruby code & see the result directly. IRB is the built-in Ruby REPL that every Ruby developer is familiar with. Debug Using IRB - Interactive ruby shell How can you use IRB?Interactive Ruby Shell. You can open IRB by typing IRB inside a terminal window. Then you can write your Ruby code & press enter to run it. If you