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I love to add print statements that print out 1, 2, 3, 4, 5…

An illustration of a printer printing out lines of text.


Using descriptive strings is smarter, but I usually use numbers or “wtf???”

This helps me construct a timeline of which parts of my code ran and in what order:

Illustration of timeline of code, with some arrows pointing at it numbered 1, 3, 2. Between 1 and 3, it says “everything is okay”. Between 3 and 2 it says “the cause”, with a picture of a bug, and after 2, it says “the error message” with a picture of a page of text.

Often I’ll discover something surprising, like “wait, 3, never got printed??? Why not???”.

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