From: Rob Biedenharn <Rob@...>
Date: 2009-10-23T00:45:58+09:00
Subject: Re: convert/replace a value of nil with 0?

On Oct 22, 2009, at 11:37 AM, Gregory Brown wrote:

> On Thu, Oct 22, 2009 at 11:24 AM, Mmcolli00 Mom  
> <mmc_collins@yahoo.com> wrote:
>> Do you know how I can convert or replace any value that gets back a
>> 'nil' to 0?
>>
>> For instance, the myArrayVal[0] may or may not contain a number and I
>> want the code to default to 0 if a nil is returned. I have not  
>> found any
>> documentation on this.
>
>>> nil.to_i
> => 0
>>> nil.to_f
> => 0.0
>

And taking Gregory's information a step further,

(myArrayVal[0] || 0)

Or you could '|| 9' if you wanted to default nil to 9.

When you say "may not contain a number", might you possibly find a  
string there, too?

myArrayVal[0] == 'cat'

Just having you think about it.

-Rob


Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com