I think the reason that modern IDEs does not have good support for Perl, is that there are too few people working on implementing that support. If you want to improve IDE support in Perl I would recommend contributing (submitting PRs), see for example: github.com/richterger/Perl-Languag.... If you are a beginner in Perl, asking questions at stackoverflow.com and perlmonks.org are also great ways to get involved in the community and learn more.
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I think the reason that modern IDEs does not have good support for Perl, is that there are too few people working on implementing that support. If you want to improve IDE support in Perl I would recommend contributing (submitting PRs), see for example: github.com/richterger/Perl-Languag.... If you are a beginner in Perl, asking questions at stackoverflow.com and perlmonks.org are also great ways to get involved in the community and learn more.