What is the scope of variables in Ruby?

Can you explain the scope of variables in Ruby?

Sure! In Ruby, the scope of a variable determines where it can be accessed. There are several types of scopes: local, instance, class, and global.

What is a local variable?

A local variable is defined within a method or block and can only be accessed within that method or block.

What about instance variables?

Instance variables are prefixed with '@' and are accessible within the instance of a class. They retain their values across method calls.

Can you give an example of a global variable?

Certainly! A global variable is prefixed with '$' and can be accessed from anywhere in the Ruby program, but it's generally advised to use them sparingly.