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

Debugging with Pry

Conrad Irwin
July 25, 2013
0
110

Debugging with Pry

Slides from Debugging with Pry at Lumos Labs.

Conrad Irwin

July 25, 2013
Tweet

More Decks by Conrad Irwin

See All by Conrad Irwin
Go for Rubyists
conradirwin
2
230
REPL Driven Development with Pry!
conradirwin
5
1.5k
MongoDB — confessions of a PostgreSQL lover
conradirwin
3
3.3k
Debuggable Code
conradirwin
1
220
Pry — the good parts!
conradirwin
25
1.6k
Efficient debugging with Pry
conradirwin
2
340

Featured

See All Featured
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
28
2k
Reflections from 52 weeks, 52 projects
jeffersonlam
346
20k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
6
410
Teambox: Starting and Learning
jrom
133
8.8k
Ruby is Unlike a Banana
tanoku
97
11k
Code Reviewing Like a Champion
maltzj
520
39k
It's Worth the Effort
3n
183
27k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
191
16k
What's new in Ruby 2.0
geeforr
343
31k
The Art of Programming - Codeland 2020
erikaheidi
52
13k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
33
1.9k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
665
120k

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