Pry is a Ruby shell that provides an interactive environment for experimenting and debugging code. It allows users to: 1. List methods, show documentation, and view source code using commands like ls, ?, and $. 2. View and replay command history. 3. Edit code directly from the Pry session by configuring an editor in the .pryrc file. 4. Copy code to the clipboard using the clipit command after installing the gist gem. 5. Reload code like reloading files or classes without restarting the Pry session.

1. Some Pry
Features
@yannvery

2. IRB is great to experiment
Pry is more

3. 1 - Basics
ls - list methods
? - show documentation
$ - show source code

4. 2 - History
[4] pry(main)> hist
1: (0..5).each do |number|
2: puts number
3: end

5. 2 - History - replay
[5] pry(main)> hist --replay 1..3
0
1
…

6. 2 - History - all
[35] pry(main)> hist --all --tail 100
Use --all option to list all pry history

7. [6] pry(main)> def fullname
[7] pry(main)> [first, last].compact.join(' ')
[8] pry(main)> edit
3 - Editor

8. 3 - Editor

9. 3 - Editor
[9] pry(main)> fullname('John', 'Doe')
=> "John Doe"

10. 3 - Editor
configure your editor
edit .pryrc file
Pry.config.editor = 'subl -w'

11. 4 - Copy to clipboard
gem install gist
[9] pry(main)> clipit fullname
Copied content to clipboad!

12. 5 - Reload
# Ruby
load 'lib/user.rb'
#Rails
reload!
with IRB

13. 5 - Reload
[1] pry(main)> user = User.last
[2] pry(main)> edit user
with PRY

14. 5 - Reload
with PRY

15. [1] pry(main)> user = User.last
[2] pry(main)> edit user
[2] pry(main)> user.fullname
=> "John Doe"
5 - Reload
with PRY

16. Questions ?!
Pry
• https://github.com/pry/pry/wiki
Yann VERY (@yannvery)
• http://ribium.com