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 like to prefix my variables with what they're going to be: str = String, int = Integer, bool = Boolean, etc.

Using a single letter is quick and easy in Loops: For i = 0 to 4...Loop

Variables are made to be a short but descriptive substitute for what you're using. If the variable is too short, you might not understand what it's for. If it's too long, you'll be typing forever for a variable that represents 5.

Foo & Bar are used for example code to show how the code works. You can use just about any different nonsensical characters to use instead. I usually just use i, x, & y.

My personal opinion of foo bar vs. fu bar is that it's too obvious and no one likes 2-character variables, 3 is much better!