From: Paul Smith <paul@...>
Date: 2009-10-23T01:07:21+09:00
Subject: Re: convert/replace a value of nil with 0?

2009/10/22 Jesús Gabriel y Galán <jgabrielygalan@gmail.com>:
> On Thu, Oct 22, 2009 at 5:24 PM, 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.
>
> irb(main):001:0> array = []
> => []
> irb(main):002:0> value = array[0] || 0
> => 0
> irb(main):003:0> value
> => 0
>
> Hope this helps,

Though that will of course convert false too.


>
> Jesus.
>
>



-- 
Paul Smith
http://www.nomadicfun.co.uk

paul@pollyandpaul.co.uk