vakmanschap en passie bij Open Web

One of the nicest features of Kotlin is how easy it is to mix and match imperative and functional programming styles. There are many definitions of functional programming, but my personal definition is simply "using functions as input for other functions", maybe this is why it's called 'function'-al...

If you ask any Java developer what the most exciting feature is of the upcoming Java release(s), it is likely they will mention Loom. I talked briefly about Loom in the previous article on coroutines, but it's time to take a closer look. What kind of problems will it solve? Why is it so exciting?

Looking back at our journey, we've come a long way already through the desert of nullability, the swamp of extension functions, the valley of parameters, the mountains of classes and the plains of scope functions. Is there anything left to learn? Well, as I said in the beginning, Kotlin has no singl...

Welcome back everyone, I hope you had a nice holiday season. As we are starting a new year, we are also going to move on to some more experienced topics. Part 1 through 4 have covered most of the basic stuff, though not everything, but enough to get a good handle on what Kotlin looks like and where...

I hope you found our closeup of parameters in the previous blog interesting. This time we're going to look at classes, the most basic building blocks. In object oriented software, classes are the coat rack we hang everything else on. Does Kotlin have the same class types at Java or totally different...

In the previous article I talked about extension functions and all of the nice functionality they provide. But wait, there's more! This time we're going to talk about parameters. While that might seem like a boring topic, I promise it will be quite interesting.

In the previous article I talked about what exactly makes Kotlin so great (hint: it's not a single killer feature but a lot of different useful features) and how you would deal with Java's nullability issues in Kotlin. In this article we're diving deeper into the Kotlin world and taking a look at ex...

Kotlin has been around for 11 years and one question others always ask me is "Why Kotlin? What's so good about Kotlin that makes it so much better than plain Java?" And my answer is always the same, there is no one single major feature which Kotlin offers that makes it superior to Java, rather it is...

Maven is a dependency management tool for Java / JVM projects which has been around since 2004. Version 2 came out in 2005 and version 3 which was mostly compatible with version 2 was released in 2010. The fact that version 3 is mostly compatible with version 2 can be seen in the directory structure...

Ah yes, the cloud. So mysterious yet so simple. How do you get into it and what should be your first steps.

In this blog serries I'll give a rundown on some pitfalls you might not have thought about when getting started in the cloud.

The well known Java framework Spring and its modern personal assistant Spring Boot are often touted as being 'magic'. In this blog I am going to try to pull away the curtain and show you what's behind it. We will start by explaining the basic Spring framework and later on Spring Boot will join the p...

Today I want to talk about an aspect of our work that is very important to me and something which separates mediocre from professional developers: craftsmanship. What does it mean to possess this virtue? How can we show it in our work? And how does it help improve our code?

A likely scenario you will run into in your career as a front-end developer is that you will want to have your application deployed to multiple environments. Although these environments are mostly the same your application might have to behave slightly differently in each one of them.

See the series for the previous part of the story, or visit the demo, github or video directly. In order to prepare to speak at Graphql Summit I practiced the talk 5 times with other people present. The first time I wasn't ready and only that morning I put some slides together. It was worth the trouble through as I got a lot of feedback.

This blog will be about the Rust library I wrote and maintain, schema_registry_converter. Since the library has little use on its own, and is about integrating data with Apache Kafka, we first need to take a few steps back.

This blog post is part of a serie of webinars and talks, supported by blog posts, which will be an overview of my journey as a front-end developer in discovering and learning about Lit-html. From getting to know what lit-HTML is all about, to programming some more advanced techniques for your Web Co...