FAQ 4.45 How do I find the first array element for which a condition is true?

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4.45: How do I find the first array element for which a condition is true?

    To find the first array element which satisfies a condition, you can use
    the "first()" function in the "List::Util" module, which comes with Perl
    5.8. This example finds the first element that contains "Perl".

            use List::Util qw(first);

            my $element = first { /Perl/ } @array;

    If you cannot use "List::Util", you can make your own loop to do the
    same thing. Once you find the element, you stop the loop with last.

            my $found;
            foreach ( @array ) {
                    if( /Perl/ ) { $found = $_; last }

    If you want the array index, you can iterate through the indices and
    check the array element at each index until you find one that satisfies
    the condition.

            my( $found, $index ) = ( undef, -1 );
            for( $i = 0; $i < @array; $i++ ) {
                    if( $array[$i] =~ /Perl/ ) {
                            $found = $array[$i];
                            $index = $i;


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