What are instance variables in Ruby?

What are instance variables in Ruby?

Instance variables in Ruby are variables that are tied to a specific instance of a class. They are prefixed with an '@' symbol.

Can you give me an example of how to use instance variables?

Sure! In a class, you can define an instance variable like this: @name = 'John'. This variable can be accessed by instance methods.

How do I access these instance variables outside the class?

You typically use getter methods to access instance variables outside the class. For example, you can define a method like def name; @name; end.

Are there any best practices for using instance variables?

Yes, it's best to keep instance variables private and use accessor methods to control access and modification.