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
<[EMAIL PROTECTED]> 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) { ... }
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Affijn, Ruud
"Gewoon is een tijger."
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