Dear Programmer of the Future (is it really 12/08/02 where you are?),
If there was a global variable for the iterator in a foreach loop, what
would it be when there's a loop inside a loop? And would concentric loops
like that even be possible? One could argue that a feature of that iterator
would be that you could decrement it and repeat the same iteration, but with
a concentric loop, the inner loop would screw up the outer loop.
Anyway, to put your mind at ease, use the for(;;) syntax. The big
difference is that you have to pull $_ out of the array yourself.
for (my $counter=0;$counter<=$#array;$counter++)
{
$_=$array[$counter];
#do something
print $another_array[$counter];
}
, , , | Duane Bronson
/|/|/| , | [EMAIL PROTECTED]
( ( ( |/| | http://www.nerdlogic.com/
\ ( | | 453 Washington St. #4A, Boston, MA 02111
| / | (617) 515-2909
----- Original Message -----
From: "Komtanoo Pinpimai" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, December 08, 2002 11:56 PM
Subject: [Boston.pm] for loop iterator variable -- !?
> Hello
> Sorry if it has already been listed in a perl document, however I
cannot discover it,
>
> My curiosity is that:
>
> Is there the "iterator variable" for "for or foreach" loop ?
> At this present, when I need access to get current index of an array when
looping with for, I do this
>
> my $counter=0;
> for (@array) {
> #do something
>
> print $another_array[$counter];
> ++$counter;
> }
>
> you see? It is not elegant.. has perl this iterator variable ?
>
>
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>
>
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