From: Patrick Gundlach <clr6.10.randomuser@...>
Date: 2005-07-26T01:05:59+09:00
Subject: Re: Newby question 'unless'

Hi,

> def to_s
>    "#{@a}" + "#{@b}" unless @a == 0
> end

  def to_s
   "#{@a}" +  (@a == 0 ? "" : "#{@b}" )
  end


>      def to_s
>          s = "\n#{@post}"
>          if @post != :GK
>              s += "#{@side}"

s += creates a new object. Doing << on strings is much faster.


Patrick