this post was submitted on 28 Sep 2024
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Asking as a newbie programmer: how do you suggest we write comments that explain the 'why' part of the code? I understand writing comments explaining the 'what' part makes them redundant, but I feel like writing it the former way isn't adding much help either. I mean, if I created code for a clock, is writing "It helps tell what time it is" better than writing "It is a clock" ?
It would really help if someone could give a code snippet that clearly demonstrates how commenting the 'correct' way is clearly better than the way we are used to.
the "what" is interesting on interfaces or when you generate documentation with some tool like sphinx or javadoc.
the "why" is interesting when you are somewhere inside a class or function and do something in a "strange" way, to work around a quirk in the codebase or something like that, or when you employ optimizations that make the code harder to read or atleast less obvious why somethings are done.