$30 off During Our Annual Pro Sale. View Details »

Debugging with Pry

Avatar for Conrad Irwin Conrad Irwin
July 25, 2013
0
130

Debugging with Pry

Slides from Debugging with Pry at Lumos Labs.

Avatar for Conrad Irwin

Conrad Irwin

July 25, 2013
Tweet

More Decks by Conrad Irwin

See All by Conrad Irwin
Go for Rubyists
Avatar for Conrad Irwin conradirwin
2
280
REPL Driven Development with Pry!
Avatar for Conrad Irwin conradirwin
5
1.6k
MongoDB — confessions of a PostgreSQL lover
Avatar for Conrad Irwin conradirwin
3
3.8k
Debuggable Code
Avatar for Conrad Irwin conradirwin
1
260
Pry — the good parts!
Avatar for Conrad Irwin conradirwin
25
1.6k
Efficient debugging with Pry
Avatar for Conrad Irwin conradirwin
2
380

Featured

See All Featured
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
659
61k
Into the Great Unknown - MozCon
Avatar for Noah Learner thekraken
40
2.2k
Imperfection Machines: The Place of Print at Facebook
Avatar for Scott Boms scottboms
269
13k
Learning to Love Humans: Emotional Interface Design
Avatar for Aarron Walter aarron
274
41k
Context Engineering - Making Every Token Count
Avatar for Addy Osmani addyosmani
9
500
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
Avatar for mongodb mongodb
48
9.8k
Mobile First: as difficult as doing things right
Avatar for Swwweet swwweet
225
10k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
Avatar for Irina Nazarova irinanazarova
9
1.1k
Designing Dashboards & Data Visualisations in Web Apps
Avatar for Des Traynor destraynor
231
54k
A Tale of Four Properties
Avatar for Chris Coyier chriscoyier
162
23k
How To Stay Up To Date on Web Technology
Avatar for Chris Coyier chriscoyier
791
250k
Building a Scalable Design System with Sketch
Avatar for Laura Van Doore lauravandoore
463
34k

Transcript

  1. None

  2. From http://www.codeodor.com/images/frustrated.jpg

  3. “Beware of bugs in the above code; I have only

    proved it correct, not tried it.” — Donald Knuth

  4. From http://thecollaboratory.wikidot.com/2013-philosophy-of-thought-logic

  5. None
  6. None
  7. None

  8. Use binding.pry Easier to write. Easier to read. Can explore

    interactively. Can fix things interactively.

  9. Use binding.pry whereami $ (aka. show-source) ls edit

  10. Use binding.pry cd ? (aka. show-doc) up (and down) try-again

    (with rescue rails server) help

  11. Debugging is fun 49.9% of your time is spent debugging.

    Optimize that. Pry can help.

  12. Questions? @ConradIrwin