Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Debugging with Pry

Avatar for Conrad Irwin Conrad Irwin
July 25, 2013
0
120

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
260
REPL Driven Development with Pry!
Avatar for Conrad Irwin conradirwin
5
1.5k
MongoDB — confessions of a PostgreSQL lover
Avatar for Conrad Irwin conradirwin
3
3.6k
Debuggable Code
Avatar for Conrad Irwin conradirwin
1
240
Pry — the good parts!
Avatar for Conrad Irwin conradirwin
25
1.6k
Efficient debugging with Pry
Avatar for Conrad Irwin conradirwin
2
360

Featured

See All Featured
Mobile First: as difficult as doing things right
Avatar for Swwweet swwweet
223
9.7k
The World Runs on Bad Software
Avatar for Brandon Keepers bkeepers
PRO
69
11k
Optimizing for Happiness
Avatar for Tom Preston-Werner mojombo
379
70k
Rails Girls Zürich Keynote
Avatar for Gregor Martynus gr2m
94
14k
The MySQL Ecosystem @ GitHub 2015
Avatar for Sam Lambert samlambert
251
13k
The Power of CSS Pseudo Elements
Avatar for Geoffrey Crofte geoffreycrofte
77
5.8k
Building a Modern Day 
E-commerce SEO Strategy
Avatar for Aleyda Solis aleyda
41
7.3k
Intergalactic Javascript Robots from Outer Space
Avatar for Vicent Martí tanoku
271
27k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
138
34k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
Avatar for Dan Newman danielanewman
228
22k
We Have a Design System, Now What?
Avatar for Morgane Peng morganepeng
53
7.7k
Faster Mobile Websites
Avatar for Dean Hume deanohume
307
31k

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