Filling the Knowledge Gap: Debugging Edition
summary
Shows concrete debugging moves: use binding.pry and Pry commands (ls next step continue) instead of blind console stares; prefer p over puts when inspecting objects; load a small app called Puppygotchi and pause execution to inspect @puppy and step into methods; open the browser Network tab and server logs to correlate 500s and bad responses; reproduce a bug where a nil enters an ActiveRecord list breaking React, then add tests that assert nils are excluded and iterate until the tests and QA pass.
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chapters (9)
- 0:00Start
- 1:00Introduction
- 8:01Debugging Strategies
- 9:31Print Debugging
- 10:49Interactive Debugging
- 14:59Continue
- 18:00Network Tab
- 19:44Request Payload
- 22:03Lesson Number Three Find a Bug Write a Test
