[REBOL] Encouraging functional programming Re:

[jeff]

 
> As it turns out, it isn't possible to do this in REBOL with
> purely functional  code because there  doesn't seem to be a
> way  to prepend an element to  a block in a non-destructive
> way.  However,  if  we cheat a   little and introduce these
> functions:
> 
> prepend: func [item blk] [
>          result: make block!   (length? blk) + 1  insert  result
>          item insert next result blk return result ]

           What's wrong with:

  prepend: func [item blk][append reduce [item] blk]

     ?

         -jeff