How to name variables

Question

• What rules do you use to name your variables?
• Where are single letter vars allowed?
• How much info do you put in the name?
• How about for exam

Answer 1

I would say try to name them as clearly as possible. Never use single letter variables and only use 'foo' and 'bar' if you're just testing something out (e.g., in interactive mode) and won't use it in production.