What are classes and scope in Ruby?

What are classes and scope in Ruby?

In Ruby, a class is a blueprint for creating objects, defining their properties and behaviors. Scope refers to the visibility of variables and methods.

Can you explain how instance variables work within a class?

Instance variables in Ruby are prefixed with '@' and are used to store data specific to an instance of a class. They are accessible within instance methods.

What about class variables? How do they differ from instance variables?

Class variables are prefixed with '@@' and are shared among all instances of a class. They differ from instance variables, which are unique to each instance.

How does scope affect variable accessibility in Ruby?

Scope determines where a variable can be accessed. For example, local variables are only accessible within the method they are defined in, while instance variables are accessible throughout the instance.