From: Brian Candler <b.candler@...>
Date: 2009-01-16T05:58:20+09:00
Subject: Re: undefined method `[]' for nil:NilClass - how to prevent?

Axel Etzold wrote:
> A conceptually cleaner way yet would be to assign a default value to the 
> array variable,
> 
> array=Array.new(['nothing in here'])

Note: unlike Hashes, Arrays don't have default values.

When creating an Array, you can fill it with a specific number of 
values:

  array = Array.new(5,99)   #  [99,99,99,99,99]

This form inserts n identical references to the *same* object. If you 
want distinct objects, then you have to use the block form:

  array = Array.new(5) { ['nothing in here'] }

Regards,

Brian.
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