From: Rob Biedenharn <Rob@...>
Date: 2008-04-25T03:11:29+09:00
Subject: Re: Function appends same value to string based on number of function  calls

On Apr 24, 2008, at 2:00 PM, vannuys@gmail.com wrote:

> Hi Guys,
>
> Is this default ruby behaviour or is this a bug? Based on the number
> of call to Testappend::get_some_value, the string "-New Value" is
> appended x number of times. If you first assign value = '' instead of
> value = @text, the behaviour is different and the "-New Value" string
> is appended only once.

Do you mean:
    def get_some_value
      value = ''
      value << '-New Value'
      return value
    end

If so, where do you do anything with the String object to which @text  
refers?

BTW, you could simplify your original to just:
    def get_some_value
      @text << '-New Value'
    end

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com

> version of ruby: ruby 1.8.6 (2007-03-13 patchlevel 0) [x86_64-linux]
>
> Thanks.
>
> Philippe
>
> -----------------------------------------------------
>
> module ATest
>
>  def ATest.main
>
>    t = TestAppend.new
>    puts t.get_some_value ==> Start of string-New Value
>    puts t.get_some_value ==> Start of string-New Value-New Value
>    puts t.get_some_value ==> Start of string-New Value-New Value-New
> Value
>
>  end
>
>  class TestAppend
>    attr_accessor :text
>
>    def initialize(attributes = {})
>      @text = "Start of string"
>    end
>
>    def get_some_value
>      value = @text
>      value << '-New Value'
>      return value
>    end
>
>  end
>
> end
>
> ATest::main
>