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    $\begingroup$ One size doesn't fit all. What matters is legibility. and sometimes creating more space helps. $\endgroup$ Commented Nov 27, 2023 at 11:20
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    $\begingroup$ I haven't heard the "one screen" function size limit recommendation before. This seems pretty arbitrary. Nowadays, with high res vertical monitors, "one screen" can probably fit 500 lines of code or more. In general, it's good to approach any sort of one-size-fits all rule like this with suspicion. Regarding the switch-case question, usually use a lookup table in whatever language you're using, preferably populated by raw data (JSON, typically). But it depends on your specific use case. switch-cases may be calling functions rather than accessing simple data. $\endgroup$ Commented Nov 27, 2023 at 20:23