From: "Shareef J." <lists@...>
Date: 2013-02-28T02:36:14+09:00
Subject: Using Object#send to update instance variables

Hi there,

been trying to figure this out for a while and wanted to check I had the
cleanest solution.

I have a class with some instance varaibles that I'd like to update by
iterating over some matching strings pulled from a config file.

The instance variable are either arrays or strings so I want to append
to the arrays and overwrite the strings.

Is the following best practice?

Thanks, Shareef.


class Test
  attr_accessor :string, :array

  def initialize
    @string = String.new
    @array = Array.new
  end

  def update(method, arg)
    if Array === __send__(method)
      __send__("#{method}") << arg
    else
      __send__("#{method}=",arg)
    end
  end
end

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