"If debugging is the process of removing software bugs, then programming must be the process of putting them in."
– Edsger W. Dijkstra
In the life of a professional coder, debugging and troubleshooting take up a significant amount of time. Even if you work on the most beautiful code base ever written by a human, there will still be bugs in it; that is guaranteed.
We spend an awful lot of time reading other people's code and, in my opinion, a good software developer is someone who keeps their attention high, even when they're reading code that is not reported to be wrong or buggy.
Being able to debug code efficiently and quickly is a skill that every coder needs to keep improving. Some think that because they have read the manual, they're fine, but the reality is, the number of variables in the game is so great that...