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

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

Class variables should be used sparingly. It's best to limit their use to constants or shared state that is truly necessary.

Can you explain why limiting class variables is important?

Limiting class variables helps prevent unintended side effects and makes your code easier to understand and maintain.

What are some common pitfalls when using class variables?

Common pitfalls include overusing them, leading to tight coupling, and not properly managing their state across instances.

Are there alternatives to class variables?

Yes, consider using instance variables, dependency injection, or design patterns like Singleton for shared state.