Sorry, you're right - 20 lines or less is the recommendation in the actual text of Clean Code. I have seen people try to push that down to 5 in Ruby on Rails de

Sorry, you're right - 20 lines or less is the recommendation in the actual text of Clean Code. I have seen people try to push that down to 5 in Ruby on Rails development (IIRC, the most popular linter at one time tried to enforce 5 lines) In any case, the point stands - there are 19 line functions that are too sense, and 21 line functions that are sensible.