ruby - What is the name for instance variable caching? -

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the technique of caching instance variables has specific "academic" name can't remember it. please me out.

def current_user   @current_user ||= user.find(session[:user_id]) end

marshaling called marshalling.
lazy loading called lazy loading.
described technique called ... ?

memoization. http://en.wikipedia.org/wiki/memoization


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