From: unbewusst.sein@... (=?ISO-8859-1?Q?Une_B=E9vue?=)
Date: 2010-06-03T00:15:05+09:00
Subject: Re: having a class method called only one time ?

Tony Arcieri <tony.arcieri@medioh.com> wrote:

> You can "memoize" the result of such an operation in an instance variable by
> doing
> 
> @cached_result ||= big_expensive_operation
> 
> This will use the value of @cached_result unless it's unset/nil, otherwise
> it will invoke the expensive operation and store the result in an ivar

fine thanks, that's cleaner than my code !
-- 
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