What sort of things can you learn when interviewing someone for a technical position? What questions are useful? This is a much-discussed and sometimes hotly debated topic in the tech world. I’ve done a fair bit of interviewing for my employer over the past few years. We’ve built an excellent technical team, either because or … (Read More)
I’ve been on vacation for the past week, and I decided to take a look at using Test2 to reimplement the core of Test::Class::Moose. Test::Class::Moose (TCM) lets you write tests in the form of Moose classes. Your classes are constructed and run by the TCM test runner. For each class, we constructor instances of the … (Read More)
The 1.22 trial release includes some small backwards incompatible changes in how DateTime->from_epoch handles floating point epoch values. Basically, these values are now rounded to the nearest microsecond (millionth of a second). This release also fixes a straight up bug with the handling of negative floating point epochs where such values were incremented by a … (Read More)
I found a bug in Perl 6 recently. Really I independently discovered one that was already reported. Here’s how to trigger it:
$ perl6 -e 'say <2147483648/3>'
Cannot find method 'compile_time_value'
Any numerator of 231 or greater causes that error. Note that Perl 6 is perfectly happy to represent rationals of that size or larger:
$ perl6 -e 'say Rat.new(2147483648, 3)'
So the problem was clearly somewhere in … (Read More)
I should’ve posted this earlier, but better late than never. We’re having the first MPM meeting in many years on Tuesday, January 26. Please see the meetup event for details. I’ll be speaking about Perl 6 and Arthur Goldstein will be giving a short intro-level presentation on Perl 5. … (Read More)
My article on Stepford for the Perl 5 advent calendar is now live. Maybe I can write an article on Perl 4 or Perl 7 for the trifecta? Stepford is a tool we wrote at MaxMind, Inc. to help automate our database build process. It’s like make but in Perl, and instead of writing a … (Read More)
I wrote an article for the Perl 6 advent calendar, Perl 6 Pod, that just went live earlier this evening. I’ll also have a Perl 5 advent calendar article coming up soon on December 16. Am I the only person to write an article for both the Perl 5 and Perl 6 advent calendars this … (Read More)
This post got a lot of discussion on Hacker News that you might find interesting. I’ve been writing a fair bit of Perl 6 lately, and my main takeaway so far is that Perl 6 is fun. Pretty much everything I love in Perl 5 is still part of Perl 6, but almost everything I … (Read More)
For a long time, the DateTime::Locale distribution has been rather stale. It is built from the CLDR project data, which came in XML form. And not just any XML, but one of the most painful XML formats I’ve ever experienced. It’s a set of data files with complicated inheritance rules between locales (both implicit and … (Read More)
In a discussion group about animal activism on Facebook, someone recently shared an article titled The Myth of the Ethical Shopper. It’s a really interesting piece about some of the problems with consumer advocacy aimed at encouraging people to buy sweatshop-free products. I highly recommend reading it. The discussion in the Facebook group was about … (Read More)