Your code:
my %filter_map = ( ... );
my $filter = q{};
if ($filter_clean) {
my @filter_split = split //, $filter_clean;
for my $fc (@filter_split) {
if ( $fc =~ /\d/ ) {
$filter .= $fc;
}
else {
$filter .= $filter_map{ uc $fc };
}
}
}
say $filter;
Simpler procedural code:
my %map = ( ... );
$map{$_} = $_ for 0..9;
my $numeric;
for (split //, uc($word)) {
$numeric .= $map{$_};
}
say $numeric;
Simpler functional code:
my %map = ( ... );
$map{$_} = $_ for 0..9;
my $numeric =
join '',
map $map{$_},
split //, uc($word);
say $numeric;
In this case, both the procedural and function approach are quite clear.
It's very ironic that you're calling map unclear when your variable name indicates you're thinking in terms of a map.
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