Global Game Jam Cieszyn 2019

Global Game Jam is an annual game hackathon. It took a place in many countries at the same time all over the world. People like designers, sound creators, programmers sit together to create games in 48h. The main purpose of this game jam is to innovate, experiment and collaborate. Each year, participants get a new theme for the game. They try to use this theme as inspiration for game storyline. After a whole weekend of work the hackathon participants put the results of their work to Global Game Jam website. 'Til now I attend in three game jams in Cieszyn....…

Pattern matching in Elixir - basics

Elixir is a functional language, created by José Valim in 2012, runs on the Erlang virtual machine. If you want to know more about Elixir, go to its official website. I would like to mention one more thing. It is Rails and Ruby reference here. José is one of the members of Rails Core Team. …

Small code smells

I think every programmer, at least at some point, wanted to resolve some big problems, focus on big architecture and be the one, who will fix the entire world. Did you ever feel that way? I did, more than once. It's funny because at that moment I feel that I can change application completely, for the better of course ;] I can do some refactoring here and there. I can do that alone, without any help. I see the solution inside my head. It is almost done. But after this moment of excitement, I know that this is a daily...…

Regular expressions - what can go wrong?

Someone said: If you have a problem, use regular expressions. You will have two problems. That's true. At least in some cases. As a programmer, we should be responsible for our code. We should think twice about all possible usage of our code. And also, do tests for it ;]. Today I would like to share an example with using regular expressions, but without enough preparation and testing. I would like to show what was wrong and how I fixed it. This is a case study. I will not introduce the concept of regular expressions, but I will show you,...…

How to use custom time in browser to manual tests for app?

I don't like changing my setups when they work fine. This time, I wanted to test some functionality in the project in different time zones. I found a way to do that independently to my existing setups. I work in a project where we use some external API to get weather data and display them to the user. There was a problem with missing values in a specific range of time. For example, when you asked about data for October you would get one day less. So you do not get 31th of October. If you asked about September, everything...…

Ruby Refactoring step by step - part 2

Last time in the article Ruby Refactoring step by step - part 1 we went through the very procedural code in one class to a more object oriented approach. This time we will continue our journey through refactoring. We will cover small object instead of one big class and we will use composition to plug behavior into an object. Let's start! …