--On Samstag, 22. September 2001 01:09 +0200 Andrea Holstein
<[EMAIL PROTECTED]> wrote:
> Birgit Kellner wrote:
>>
>> my %hash = ('firstkey' => 'firstvalue',
>> 'secondkey' => 'secondvalue',
>> 'thirdkey' => 'thirdvalue');
>> my @array = ('secondkey', 'other element', 'still other element',
>> 'firstkey');
>> my @index_array;
>> foreach my $element (@array) {
>> # QUESTION: here I'd like to have some code that returns the
>> index number of $element, which I'd store in $index
>> if ($hash{$element}) {
>> push (@index_array, $index);
>> }
>> }
>>
>> Any suggestions would be greatly appreciated,
>
> Simple solution is
> ...
> my $index = 0;
> foreach my $element (@array) {
> if (...) {
> ...
> }
> $index++;
> }
>
Thanks, but I don't understand how this is supposed to achieve what I want.
As I understand it, this code simply increments the value of $index every
time the condition evaluates true. In my case, the condition would be:
if ($hash${element}) {
...
}
So I'd increment the value of $index each time there's a hash value for an
array element. But $index would not be the index number of the array
alement in question.
Birgit Kellner
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