The Nuts and Bolts
The following sections investigate how to name each category of item we listed earlier. Even if you’ve been programming for years, this is a useful review of the broad spectrum of naming conventions.
Naming Variables
If a variable wasn’t just an electronic entity, it would be the sort of
thing you could hold in your hand, the software equivalent of a physical
object. A name that reflects this will usually be a noun. For example,
variable names in a GUI application might be ok_button and main_window.
Even variables that don’t correspond to Real World objects can be given noun
names; consider elapsed_time or exchange_rate.
If not a noun, a variable will usually be a “noun-ized” verb, for example,
count. A numeric variable’s name ...