One of the most important parts of clear code is good names, so we put a lot of thought into naming functions, modules, variables, classes, so they clearly communicate what they do and how to use them. Sadly, however, naming is one of the two hard things [mf-2h] in programming. So, perhaps the most common refactorings we do are the renames: Change Function Declaration (124) (to rename a function), Rename Variable (137), and Rename Field (244). People are often afraid to rename things, thinking it’s not worth the trouble, but a good name can save hours of puzzled incomprehension in the future.
