From: jake kaiden <jakekaiden@...>
Date: 2011-10-14T22:07:15+09:00
Subject: Re: What’s the best way of checking if an argument has been given or not?

...probably not the *best* way, but this works:

  class A
  def initialize(arg = "NO ARGUMENT")
    if arg == "NO ARGUMENT"
      puts "no argument given"
    else
      puts arg
    end
  end
  end

  A.new
  A.new("foo")

  => no argument given
  => foo



  - j

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