Ruby Metaprogramming examples

define_method_meta.rb

class String
  def self.add_methods(name)
    send(:define_method, name) {
      puts "you have create a new method and output will be displayed"
      }  
  end
end
String.add_methods("log_msg")
puts "str1".log_msg.inspect
#define_method is a private method on the class.

#output
#you have create a new method and output will be displayed