From: Pit Capitain <pit@...>
Date: 2005-01-08T15:32:55+09:00
Subject: Re: Construct [*nil] works differently in 1.6 and 1.8

Gennady Bystritksy schrieb:
> In ruby 1.6 I use the following quite often to quickly convert to arrays:
> 
> a = [ *o ]
> 
> If 'o' is already an array, 'a' will be the same. If 'o' is non-nil, 'a' 
> becomes an array with 'o' as a single element. Otherwise, if 'o' is nil, 
> 'a' becomes an empty array. Nice and clean.
> 
> However, in 1.8 if 'o' is nil, 'a' becomes an array with a single 
> element nil.

Hi Gennady,

you can use the method "Array":

   p Array( [ 1, 2, 3, ] )
   p Array( "x" )
   p Array( nil )

results in

   [1, 2, 3]
   ["x"]
   []

Regards,
Pit