this post was submitted on 28 Sep 2024
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[โ€“] [email protected] 24 points 1 month ago* (last edited 1 month ago) (25 children)

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.

[โ€“] [email protected] 10 points 1 month ago

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.

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