From: Soul Surf <lists@...>
Date: 2012-04-14T01:06:29+09:00
Subject: Re: How to test if array element exists?

Ralf Mueller wrote in post #1056271:
> On 04/13/2012 09:53 AM, Jan E. wrote:
>> end
>>
> what about this
> ?> array = [0,1,2,3]
> => [0, 1, 2, 3]
>  >> array[4]
> => nil
>  >> array[4].nil?
> => true
>  >> array[444].nil?
> => true
>  >> array[2].nil?
> => false
>  >>

thanks. i found part of my problem was

[array[4]].nil? => false

whereas

array[4].nil? => true

it was a syntax error.

the .length is good also

thanks

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