stevenyap/repl-with-pry.md

## repl-with-pry.md

      
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              repl-with-pry.md
            
          
REPL-driven development in Ruby. Watch this screencast for http://www.confreaks.com/videos/2864-rubyconf2013-repl-driven-development-with-pry
Basic idea is to able to
-- Going into pry
-- Usage of up/down/cd/$ method to explore through the stack
-- Use break method_name to set breakpoints
-- edit -c to edit the source code of the file
-- try-again to re-run rspec/rack to check if the bug is solved

gem 'pry'
gem 'pry-doc'
gem 'pry-coolline'
gem 'pry-stack_explorer'
gem 'pry-debugger'
gem 'pry-rescue'

gem 'hirb' # run hirb.enable to enable tab output
gem 'awesome_print'
Useful shortcuts

whereami
__ # return second last evaluation
wtf
wtf?!?!?!??!!