Question

I read somewhere that each object’s instance variables are unique.

I’m not sure how to make sense of that statement. Can someone explain?

Answer 1

My guess is that it means that two instances of the same class have their own, unshared instance variables, even though they are called the same thing.

class Dog
  def initialize(name)
    @name = name
  end
end

dog1 = Dog.new('Spot')
dog2 = Dot.new('Rover')

dog1.instance_variable_get "@name" # "Spot"
dog2.instance_variable_get "@name" # "Rover"