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
240
REPL Driven Development with Pry!
conradirwin
5
1.5k
MongoDB — confessions of a PostgreSQL lover
conradirwin
3
3.4k
Debuggable Code
conradirwin
1
220
Pry — the good parts!
conradirwin
25
1.6k
Efficient debugging with Pry
conradirwin
2
340

Featured

See All Featured
jQuery: Nuts, Bolts and Bling
dougneiner
61
7.5k
The World Runs on Bad Software
bkeepers
PRO
65
11k
StorybookのUI Testing Handbookを読んだ
zakiyama
27
5.3k
4 Signs Your Business is Dying
shpigford
181
21k
Building Applications with DynamoDB
mza
91
6.1k
Intergalactic Javascript Robots from Outer Space
tanoku
270
27k
How To Stay Up To Date on Web Technology
chriscoyier
789
250k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
229
52k
The Language of Interfaces
destraynor
154
24k
Why Our Code Smells
bkeepers
PRO
335
57k
A Tale of Four Properties
chriscoyier
157
23k
How to train your dragon (web standard)
notwaldorf
88
5.7k

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