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Here's a preview from my zine, The Pocket Guide to Debugging! If you want to see more comics like this, sign up for my saturday comics newsletter or browse more comics!

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Here’s a classic (but still very effective!) way to get started:

  1. find the line of code where the error happened
  2. trace backwards to investigate what could have caused that error. keep asking “why?”

example: - There’s an error on line 58… - that’s because this variable has the wrong value… - the value is set by calling this function… - that function is making an HTTP request to the API… - the API response doesn’t have the format I expected! Why is that?

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