Is $#array deprecated or not?

On May 14, 2008, at 5:35 PM, Dr.Ruud wrote:

> "Li, Jialin" schreef:
>> On Wed, May 14, 2008 at 4:01 PM, Tech list
>> <tech_list@womenshealth.com> wrote:
>>
>>> what is the correct way to get the number of items in an array?
>>>
>>> I used to use $#array
>>>
>>>
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>>>
>>
>> $#array is the index of the last item, so the number should be
>> $#array + 1, or
>> scalar @array
>
> Please read perlvar about $[. Normally it is 0, but you can set it  
> to a
> different value, like -3 or 27.
>
> The $#array is the last index of @array, so $array[$#array] is
> equivalent to $array[-1].
>
> The number of items in an array is returned by @array in scalar  
> context,
> examples:
>
>    scalar(@array)
>
>    (0+ @array)
>
>    if (0 < @array) { ... }
>
>    if (@array) { ... }
>
> -- 
> Affijn, Ruud
>
> "Gewoon is een tijger."
>
>
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> http://learn.perl.org/
>
>