Context is the key to getting a better answer to your question. For any sufficiently large code base you would need to adopt some structure, e.g. modules and/o

Context is the key to getting a better answer to your question. For any sufficiently large code base you would need to adopt some structure, e.g. modules and/or well designed functions, to ensure that the system is maintainable. Classes are just one to encapsulate state and behaviour so it doesn't leak all over the place.