Engineers love innovation, shiny tools, and creative ways of solving problems. This is a good thing and a bad thing. It’s good because we do need new solutions to go forward, but it’s also a bad thing to risk stability, of both the product and the team, by...
Most people get to know Domain-Driven Design through the tactical patterns. Concepts like Value Objects, Entities, Aggregates, Repositories and Event Sourcing are all strongly linked to DDD. That is most likely the reason why many people interpret Domain-Driven Design as a technical thing. This is quite a misconception though. When...
In the past months, I have asked myself a lot why we always strive to write perfect code. Picking up coding again for an internal project made me realise our team (and probably a large part of the rest of the software development world) spend a lot of time on...
Most developers are familiar with the concept of imperative and declarative programming. Imperative programming is when you provide the program with the exact steps to achieve the output with an emphasis on how. Declarative programming is a coding style where you focus on what the piece should achieve with less...
Why immutability? When working on a React application that needs to handle state, one of the main pitfalls to watch out for is accidental mutations. This is fancy talk for mistakenly modifying stuff you didn’t want to change: let user = { name: "foo" }; let updated = user; updated.name...
What is Prettier? Originally from the Javascript ecosystem, Prettier is a code formatter which means it takes your code and makes it – as its name suggests – prettier. There are code formatters for many languages; even Javascript has quite a few of them. Prettier, however, is currently one of the most...
Kubernetes, also known as K8s, seems to be getting quite some attention these days in the container orchestration world. It even got some attention from Docker Inc. itself a while back, despite the fact that they have their own container management tool called Docker Swarm (and it’s as good...
What’s this Firebase thingy? You might have heard about Firebase, a real-time database that stores data as JSON object and was acquired by Google in October of 2014 and became a unified platform for mobile apps. This article will tell you a bit more on how to move Firebase...
When working on a legacy codebase, you often have to make changes in code you don’t fully understand. When this code is not tested, you’re never sure that it will still work after adapting it. And will it have unexpected effects on other parts of the codebase? As...