Ask HN: Why is Perl considered a bad language?

It is not soydev-approved :)

It's not a "bad" language, others are more suited for "public" development where you want others to read the code someday. Where expressing your intent to the computer is all you need, Perl is still unmatched, I think. When you need to please a wider audience then other languages have been found more popularly palatable.

I am not a professional developer so take my opinion with a grain of salt. I do not believe that language vs language or why is language X bad entirely useful. Those arguments are usually pitting downstream effects against one another.

Rather I believe that a language is as good as its founding development community in terms of cooperation, incitement of creativity, inclusiveness, supporting new developers both hobbyists and professional alike and things along this line. I believe those are foundational principals and if those are lacking everything else will be weak and only get weaker with time. Politics, cliques, divisive or elitist behavior will creep in and the rest become downstream artifacts. I witnessed some of this amongst the Perl Monks and it was not surprising that their community stagnated and became divided. This is just my opinion however and I don't code for a living, just for fun. I still write Perl code for my own hobbies.

Using Perl caused me to wear the lettering off the Shift keys on a new keyboard in one month

Let's see: terse syntax, sigils ($str, @array, %hash), weak typing. Many years ago (like 10+) I used to use it for one off scripts, but I now use Python for those. 20+ years ago, I used it for CGI scripts, but that paradigm is basically totally obsolete.

20 years ago this was my go-to language. Its CLI was very easy to develop your own system to combine grep, sed, awk, uniq, etc into awesome one liners, and for producing more complex file and network manipulation techniques.

One huge challenge I had was the inability to read other people's Perl code. There were dozens of ways to solve the same problem, and I had extreme difficulty reconciling my own understanding of "perl" with other people's code.

> How is this - or similar - done in other languages?

In the sense of just generating a QR code and outputting to PNG, or building it as a CGI script?

This is what I came up with in Python and Go for the former: https://pastebin.com/NemaaCzF

Modern Perl with Mouse and Moo is pretty clean looking.

I still maintain Perl code I wrote at work 10 years ago.

Now most of my work has shifted to Go and Python.

Bad language is a pretty subjective. Perl often gets a bad wrap because it can be hard to read and terse, but that doesn’t necessarily make it bad. It could be good in a “writing a quick script” circumstance.

Somewhat related to this, enjoy this article[0] titled “93% of Paint Splatters are Valid Perl Programs”

[0] https://www.mcmillen.dev/sigbovik/

Because unreadable code is easy and natural to write.

(like bad, unreadable can be a subjective property)

I pulled a copy of Perl Best Practices off a shelf of free books the other week, and have been wishing I had bought a copy when it came out.

It is easy to write truly awful code in Perl. But if you've never seen truly awful code in any other language, you've lived a sheltered life.