How to unfreeze an object in Ruby?

Question

In Ruby, there is Object#freeze, which prevents further modifications to the object:

class Kingdom
  attr_accessor :weather_conditions
end

arendelle = Kingd         


        

Answer 1

frozen_object = %w[hello world].freeze
frozen_object.concat(['and universe']) # FrozenError (can't modify frozen Array)
frozen_object.dup.concat(['and universe']) # ['hello', 'world', 'and universe']