From: botp <botpena@...>
Date: 2009-04-09T01:39:03+09:00
Subject: Re: performing an action only the first time a function called

On Wed, Apr 8, 2009 at 10:29 PM, James French
<James.French@naturalmotion.com> wrote:
> Obviously the intention is to only do something the first time it is called. Maybe some little reusable util? I have a number of different bootstrap functions I want to apply this to.
>

sometimes, i apply ruby's nested methods feature...

eg,

botp@jedi-hopeful:~$ cat test.rb
def only_once_dumper
  def only_once
  end
end

def only_once
  puts "i ran once!"
  only_once_dumper
end

only_once
only_once
only_once

botp@jedi-hopeful:~$ ruby test.rb
i ran once!
botp@jedi-hopeful:~$

kind regards -botp