Leben++

“Transposing” or “privoting” rows to columns in a database query is a common task. These are my notes on how I evolved a SQL query to get the desired result.

My notes from MenderCon 2021, an open space conference on modernizing and improving existing codebases.

In this article you’ll learn how to run your PHPUnit tests whenever a PHP file changes. This is useful if you don’t use an IDE that does this or want to share the results during a pairing session where only one party has access to a PHP execution environment. With the command line tool entr you can watch for changes in a list of files and run a command whenever one of the files changes.

This post shows my step-by-step journey using the Vue composition API in a Vue project that uses Vuex. I started with the question “How can you gradually introduce the composition API without having to rewrite everything?”

“The Legacy of SoCraTes” is a virtual conference with talks on testing and legacy code. You can find all the talks of the 3rd edition in the YouTube playlist for the conference.

This article is a summary of some talks.

In June I attended JS Nation Live, an online conference on JavaScript. I took notes during most of the events and added some opinions and lots of links afterwards.

2019 was the first year I have participated in the Advent of Code challenges, encouraged by my colleague Jan. I wanted to make it an opportunity to learn new programming languages and focus on functional programming. I started with Racket, tried out Elixir and re-wrote the challenges that involved the “intcode computer” in Scala. This post is a review of the programming languages and the event itself.

I participated in the Global Day of Coderetreat, practicing on the Game of Life Kata and heard that some people solved the problem of finding neighboring cells with a Cartesian Product. I did not see their solution, but tried out figure out my own solution. I learned something about JavaScript, functional programming and performance, which I will share in this article.

My notes from some of the sessions I attended.

My notes from some of the sessions I attended, from hallway conversations and the schedule.