WWWTech

Christian Kruse

Welcome. On this page you can find my software projects, my articles, my notes and my pictures.

My name is Christian Kruse. I work as a software developer and system administator at Termitel GmbH. I live in Germany in a small town called Steinfurt.

I am passionate about software development, GNU/Linux, FLOSS as well as macOS. I am also a do-it-yourself apologetic: I did a lot of things in and around my house myself. I love the hacker culture. And last but not least I am a dog owner.

This is my personal replacement for Twitter, Facebook and the other data silos. My content is mine — so if you are interested in my activity, just have a look at this page.

Sorting by multiple criterias in Elixir

Christian Kruse 2 months ago

Sometimes one wants to sort an Enum by multiple criterias; e.g. you want to sort a list of records first by name and then by creation date. Let’s get more specific, have a look at this list:

persons = [
  %{firstname: "Aleksei", lastname: "Magusev", location: "Gothenburg, Sweden"},
  %{firstname: "Andrea", lastname: "Leopardi", location: "L'Aquila, Italy"},
  %{firstname: "Eric", lastname: "Meadows-Jönsson", location: "Gothenburg, Sweden"},
  %{firstname: "Fernando", lastname: "Tapia Rico", location: "Amsterdam, Netherlands"},
  %{firstname: "James", lastname: "Fish", location: "Unknown"},
  %{firstname: "José", lastname: "Valim", location: "Kraków, Poland"}
]

We want to sort this list first by location, then by firstname and last by lastname. There are two easy solutions to this problem.

2020-08-08
- Wanna feel old? The babymetal artists are now over 20 years old…
  
  Christian Kruse 5 days ago
  
  Wanna feel old? The babymetal artists are now over 20 years old…
  18:30
- Saturday morning luxury ❤️
  Christian Kruse 5 days ago
  
  Saturday morning luxury ❤️
  04:52
2020-08-06
- Grow, little fella 🌱
  Christian Kruse 7 days ago
  
  Grow, little fella 🌱
  16:50
2020-08-05
- Yes! I really liked She-Ra!
  
  Christian Kruse 7 days ago
  
  In reply to https://v2.jacky.wtf/post/b22766ef-7ef8-4267-95ba-3c88532f89a0
  
  Yes! I really liked She-Ra!
  20:25
2020-08-04
- This is way to much power for one company. https://themarkup.org/google-the-giant/2020/07/28/google-search-results-prioritize-google-products-over-competitors
  
  Christian Kruse 9 days ago
  
  This is way to much power for one company. https://themarkup.org/google-the-giant/2020/07/28/google-search-results-prioritize-google-products-over-competitors
  08:00
- Foggy summer morning
  Christian Kruse 9 days ago
  
  Foggy summer morning
  04:30
2020-08-03
- I ran >5k km in 398 runs since I started tracking my runs back in 2015, with 1250 km in 2020. This quantified self movement thingy is really pretty interesting.
  
  Christian Kruse 10 days ago
  
  I ran >5k km in 398 runs since I started tracking my runs back in 2015, with 1250 km in 2020. This quantified self movement thingy is really pretty interesting.
  18:23
- It's quite interesting to see how political the bands of my youth have been.
  
  Christian Kruse 10 days ago
  
  It’s quite interesting to see how political the bands of my youth have been. A lot of the songs have a very political message and I only ever noticed it years later. For example today I was listening to Rage Against The Machine today, in a nostalgic mood and stumbled over this line:
  
  This time the bullet cold rocked ya
  A yellow ribbon instead of a swastika
  Nothin’ proper about ya propaganda
  Fools follow rules when the set commands ya
  
  This one is from „Bullet In The Head.“ Another line from „Just A Girl“ by No Doubt is this:
  
  ‘Cause I’m just a girl, oh, little old me
  Well, don’t let me out of your sight
  Oh, I’m just a girl, all pretty and petite
  So don’t let me have any rights
  
  And I can still remember the lyrics of a lot of these songs.
  
  What I actually want to say? That I am on a nostalgic trip.
  13:52
2020-07-31
- When you find a bug in a very old piece of code…
  
  Christian Kruse 13 days ago
  
  When you find a bug in a very old piece of code, do you fix it (and possibly have to explain it to multiple people) or do you ignore it? 😜
  06:48
- ... but it‘s not yet here
  Christian Kruse 13 days ago
  
  In reply to https://wwwtech.de/pictures/293
  
  … but it‘s not yet here
  04:44

Last Article

Sorting by multiple criterias in Elixir

What's new

2020-08-08

Wanna feel old? The babymetal artists are now over 20 years old…

Saturday morning luxury ❤️

2020-08-06

Grow, little fella 🌱

2020-08-05

Yes! I really liked She-Ra!

2020-08-04

This is way to much power for one company. https://themarkup.org/google-the-giant/2020/07/28/google-search-results-prioritize-google-products-over-competitors

Foggy summer morning

2020-08-03

I ran >5k km in 398 runs since I started tracking my runs back in 2015, with 1250 km in 2020. This quantified self movement thingy is really pretty interesting.

It's quite interesting to see how political the bands of my youth have been.

2020-07-31

When you find a bug in a very old piece of code…

... but it‘s not yet here