TIMTOWDI, and List::MoreUtils offers another solution: 
use List::MoreUtils qw(firstidx);

my @array = ("a","b","c","d");
my $index = firstidx { $_ eq "c" } @array;
my $wanted = $array[$index - 1];

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Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -- Brian W. Kernighan

In reply to Re: find position of element of array by tirwhan
in thread find position of element of array by perlbeginner10

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