Hi,

In message "[ruby-talk:01396] Re: Say Hi"
    on 00/02/15, "Guy N. Hurst" <gnhurst / hurstlinks.com> writes:

|The item method requires the insert before/after distinction,
|but a slot method wouldn't. Simpler.
|
|Slot method:
|
| 0 1 2 3
|[ 1,2,3 ]
|
|or
|
|-4 -3 -2 -1
|[ 1, 2, 3  ]

It's simpler, but other methods consider negative index as

|-3 -2 -1
|[ 1, 2, 3  ]

That's kind a problem.