You don't really need two maps, just put both statements in one map: 
my $params = "'196', 'berg',NULL,NULL";
my @list_of_params = map {
    s/^'(\d+?)'$/$1/m;
    $_ eq 'NULL' ? undef : $_
} split /\s*,\s*/, $params;

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In reply to Re: Re: map not returning by ctilmes
in thread map not returning by surag

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