Beginner · 3h 50m · lessons

Debugging & Problem Solving

Turn 'it's broken and I have no idea why' into a calm, repeatable process.

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What you'll learn

  • ✦Approach a broken program calmly with a clear, repeatable debugging process
  • ✦Read an error message and stack trace and find the line that actually matters
  • ✦Reproduce a bug reliably so you can tell when it's truly fixed
  • ✦Use print/log debugging to see what your code is really doing
  • ✦Set breakpoints and step through code with a step debugger
  • ✦Narrow a bug down fast using bisection and rubber-duck debugging
  • ✦Search effectively and write a minimal reproducible example when you ask for help
  • ✦Build everyday habits that stop bugs from happening in the first place
  • ✦Tackle performance and intermittent (flaky) bugs, and lock fixes in with a test
  • ✦Apply a problem-solving toolkit: decompose, simplify, isolate, and know when to step away

Syllabus

Module 1
The debugging mindset Free
Module 2
Reading the evidence Locked
Module 3
Tools & techniques Locked
Module 4
Getting unstuck & staying ahead Locked
Module 5
Debugging in practice Locked
Module 6
Problem-solving toolkit Locked