Hi,

the code:

  idea = ["a","b","c","d"]
  idea.push( idea.shift )

lets the array rotate to the left and returns ["b", "c", "d", "a"]

the code:

  idea = ["a","b","c","d"]
  idea.unshift( idea.pop )
  p idea

lets rotate to the right and returns: ["d", "a", "b", "c"]

Is this what you mean?

Michael








"travis laduke" <wrong / socal.rr.com> schrieb im Newsbeitrag 
news:7501E02B-A490-423F-B99B-8EF43D1CA11F / socal.rr.com...
> I've been forced to work on some php lately and found myself  thinking: 
> "man, this sucks. i wish it was more like supercollider"
> then i remembered supercollider is ruby-influenced so i started  reading 
> about ruby.
>
> Here's my question: is there a common way to rotate a string or an  array?
>
> I thought i could do some combination of .pop and .unshift or  something, 
> but i ran into this problem:
>
> idea = ["a","b","c","d"]
> x = idea.pop
> puts idea
>
> why is idea changed? how do i make it stay the same?
> why is it different than:
>
> x = idea.reverse
>
> where idea is left alone and only x is the reversed array?
>
>
>
> -travis
>
>