Some of the other listed features are not unique to Perl
Few if any are. In fact, the three you say you'd miss the most aren't unique to Perl.
Perl is great because is has them all (and much more, of course) and because they are easy to use.
In reply to Re^2: If I was forced to program in another language, the Perl language feature I would miss most would be:
by ikegami
in thread If I was forced to program in another language, the Perl language feature I would miss most would be:
by grinder
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