From: Love U Ruby <lists@...>
Date: 2013-02-24T21:26:00+09:00
Subject: Re: Confusion with `nil` value being produced by IRB in case of Array#size manipulation.

Hans Mackowiak wrote in post #1098729:
> its because ruby does not make a difference in Array#[] if the element
> is nil or non existendt ...
>
> array = [nil]
> array[0] #=> nil
>
> array[1] #=> nil
>
> see? there is no difference and no error!

Humm @Hans-

I just noticed one point which is that, whenever Ruby finds an index 
which is "out of index" , instead throwing an exception it only prints 
`nil`.But yes it is the case only when we are reading the element from 
an index which is still not present in the array.

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