by Dave Cross (DAVECROSS)

I used to have hundreds of paperback tech-books. A few years ago I decided they collect too much dust and they become obsolete fast anyway, so I switched to Kindle. As the years passed I had to enlarge the fonts more and more thus the code examples started to wrap and became hard to read. Nowedays I am contemplating buying paperback books again. Apparently I am not alone with this. Enjoy the book!

by Dragos Trif

Detailed explanation on how to set it up.

by Nigel Horne (NHORNE)

GitHub Actions workflow generator and analyzer

by Mohammad Sajid Anwar (MANWAR)

Do you prefer ebooks on Kindle or paperback?

by Yoshihiro Hasegawa

This is the third post in a series on Siunertaq, a small Scala 3 project that models computation as a stack machine and cross-validates it across languages.

by Richard C. Jelinek

Peta Perl is a reimplementation of Perl 5 in Rust.

by Mohammad Sajid Anwar (MANWAR)

Welcome to a new week with a couple of fun tasks "Hamiltonian Cycle" and "Replace Question Mark". If you are new to the weekly challenge then why not join us and have fun every week. For more information, please read the FAQ.

by Mohammad Sajid Anwar (MANWAR)

Enjoy a quick recap of last week's contributions by Team PWC dealing with the "Same Row Column" and "Smaller Greater Element" tasks in Perl and Raku. You will find plenty of solutions to keep you busy.

by Ali Moradi

This article brings forth low-boilerplate and efficient solutions by employing the idea of short-circuiting post-increment hash evaluations ($h{$num}++) to quicken the process of identifying duplicates in the matrix problem. In the second task, Ali proposes a simple mathematical procedure of calculating min and max in a single traversal of the original array followed by using the method of grep subtraction to make an elegant solution of the strictly limited count of the elements.

by Arne Sommer

This article gives a thorough technical walkthrough of the expressive nature of Raku via advanced features of the language such as the reduction meta operator ([]) or deep structures equality operator (eqv). Arne manages to produce neat and elegant solutions to the matrix and element filtering tasks while at the same time adhering to high practical standards due to built-in type checking and thorough explanations of every step taken.

by Jaldhar H. Vyas

This article is unique in that it provides an analysis of the partnership between Perl and Raku, illustrating standard solutions to the weekly problems in both languages. Jaldhar makes an interesting comparison of Raku's powerful metaoperators and pre-defined type constraints with traditional, well-optimized Perl data structures and its testing methodology.

by Jorg Sommrey

This article provides an excellent technical exploration of the topic of arrays by presenting a comparison between standard Perl and the advanced, vector-based systems in J and the Perl Data Language. It describes how Jorg uses PDL multidimensional high-performance arrays in conjunction with mathematical operators available in J to formulate sophisticated solutions to matrix validation and filtering problems. This article can be described as a masterpiece in the use of advanced computing tools in usual scripting.

by Luboš Kolouch

This post offers an impressively accurate, production-level technical examination of The Weekly Challenge #381. Lubos exemplifies a perfect union of software dependability and intelligent design of algorithms with native testing technologies, making the code as efficient as it is easy for maintenance.

by W Luis Mochan

The post presents a highly effective solution to the Perl Weekly Challenge 381 using the Perl Data Language (PDL). He has been able to boil down the difficult concepts of working with matrices and arrays into simple one and two-liner implementations along with thorough validation.

by Matthias Muth

Matthias has continually presented excellent code along with efficient algorithms in his solution for the Perl Weekly Challenge. Clear explanations with a structured approach make his contributions a valuable asset for those who are trying to know more about Perl programming.

by Packy Anderson (PACKY)

The significance of the review is greatly enhanced by its multilingual nature. It gives an unparalleled comparative evaluation of four different programming paradigms. In this post, Packy skillfully shows how the problem described in Perl Weekly Challenge 381 can be solved by applying idiomatic Perl and Raku and at the same time how to implement that same logic using clean, iterative Python code and functional Elixir code. Moreover, the review is supplemented with rich test cases generated in all four programming languages.

by Peter Campbell Smith

Peter maintains his well-established tradition of rendering intelligent explanations of the problems of the week tasks, 'Same Row Column' and 'Smaller Greater Element'. His take on these tasks is characterised by the ease of reading and clarity of the presented equations.

by Roger Bell West (FIREDRAKE)

Roger gives a deep technical explanation of language-specific limitations, for example, the method of dealing with early function return statements and control of iterations in different paradigms. Since this review compares a set-based matrix traversal in PostScript and an elegant filtering solution to the array-bounds task, it can be considered a masterclass on how to adapt an algorithmic idea to syntax patterns of different languages.

by Simon Green (SGREEN)

In this post, a detailed technical analysis of Perl Weekly Challenge 381 with the help of Perl and Python is made. Simon demonstrates his ability to develop the most efficient algorithm by employing rather advanced array manipulations and list operations, specifically using grep in Perl and set operations in Python to process both matrix validation and elements problems. It offers an excellent example of how a complex problem can be simplified in concise modern programming making the outcome readable and maintainable.

by Gabor Szabo (SZABGAB)

During the most recent Perl Maven online session we had 3 presentations. You can watch them all or you can jump right to the part that interests you the most. I would also like to see more people demonstrating their toolkit whether it is AI, an editor, and IDE, or anything else. You can join our next Perl Maven online session or, if the timing is not convenient for you, talk to me to figure out when can we have such an event.

by Miguel Prz (NICEPERL)

Great CPAN modules released last week.

July 14, 2026

July 29, 2026

August 12, 2026

September 9, 2026