Is there a convention for memoization in a method call?

Question

I want to avoid reevaluation of a value in method call. Untill now, I was doing this:

def some_method
  @some_method ||= begin
    # lot\'s of code
  end
end
         


        

Answer 1

I usually use begin, end as per your first example, but if there's a bit more code, I just look if the variable exists, no need to create another method just for that.

def some_method
  return @some_method if @some_method
  # lot's of code
  @some_method
end