PerlMonks - Newest Nodes

Perlmonks.com and Perlmonks.net now redirect to Perlmonks.org

erzuuli — Thu, 14 May 2026 15:38:03 +0000

Following up on Perlmonks.com and Perlmonks.net to redirect to Perlmonks.org Thanks to the support of Leo Lapworth, Olaf Alders, and Robert from Perl NOC, this site is now served from beh...

Re: Perl wisdom in the age of LLMs

LanX — Thu, 14 May 2026 19:54:46 +0000

Yes, LLM generated code tends to replace brain with muscles in amateur hands. It's like buying bigger hardware instead of fixing an O(n�) algorithm to O(n). One doesn't need to be a mathem...

Re^3: keys on scalar warnings and lack thereof

LanX — Thu, 14 May 2026 18:35:15 +0000

What exactly do you expect from broken code? $ perl -E' $_[0] = {}; say keys %$_[0]' Experimental keys on scalar is now forbidden at -e line 1. Type of arg 1 to keys must be hash o...

Re^2: keys on scalar warnings and lack thereof

Anonymous Monk — Thu, 14 May 2026 18:07:22 +0000

I didn't include %{$_[0]} because it's obviously ok: perl -MDevel::Peek -e 'Dump(%{$_[0]})' SV = PVHV(0x157010280) at 0x15700ae40 REFCNT = 1 FLAGS = (SHAREKEYS) ARRAY = 0x0 KEYS ...

Re: keys on scalar warnings and lack thereof

ikegami — Thu, 14 May 2026 16:39:45 +0000

See Mini-Tutorial: Dereferencing Syntax. The curlies in a circumfix dereference can only be omitted if they contain a simple scalar like $NAME (or $BLOCK), not something more complicated like $_[0...