Actually, the big one for me that's missing is autovivification.
The other day I had a list of co-ordinates (pulled from a DB as a record set). To put them into a grid, I simply did this:
my @grid;
foreach my $rec (@records) {
$grid[$rec->{x}][$rec->{y}] = $rec;
}
That would've been a lot harder in most other languages.
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