What are the best practices for using system variables in programming?

What are the best practices for using system variables in programming?

Best practices for system variables include using clear naming conventions, limiting their scope, and documenting their purpose.

Can you give me an example of a clear naming convention?

Sure! Instead of naming a variable 'x', use 'userSessionTimeout' to clearly indicate its purpose.

How can I limit the scope of system variables?

You can limit the scope by declaring variables within functions or blocks, ensuring they are not globally accessible.

What documentation practices should I follow?

Document the purpose, usage, and any dependencies of each system variable in your code comments or a separate documentation file.