Debugging with Pry

Slides from Debugging with Pry at Lumos Labs.

Transcript

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
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