pietvanzoen

Web developer at Usabilla. Previously at Cozy and Daylight Studio. I'm addicted to functional-programming, test driven development, my greyhound Django, my wife Keven, and fries with mayo.


My top 3 lessons from JSConfEU 2017

My top 3 lessons from JSConfEU 2017

Our front end team at Usabilla had the amazing opportunity to attend JSConf EU in Berlin this year. It was a fantastic experience for us all and we came home having learned a ton. This is just a summary of my key take-aways from the conference.


Automated middleman deploy to Github pages

Automated middleman deploy to Github pages

I recently switched from Jekyll to Middleman for my personal website. After using Middleman for a couple projects I felt that Middleman was much easier to setup and manage than Jekyll, also I really don’t like liquid templating. The one thing I missed from Jekyll was automated deploys to Github pages. It wasn’t very difficult but you have to jump through a few hoops. Since I’m running my own build I decided to add some tests for my static site too. So here’s the how-to.


Moving On: What I learned at Cozy

Moving On: What I learned at Cozy

Today is my last day at Cozy. 😢  My wife and I are flying to the Netherlands to start a new adventure close to my Dutch family. I started at Cozy in January 2014 as a front-end engineer. I have an agency background, and after spending several years working on client websites, I was excited to have a chance to do something different — to work on one product with a cool team.


Why I love test-first TDD

Why I love test-first TDD

Twelve months ago I had hardly written a single test. After some encouragement and guidance on how to write tests my world changed. Yes, there’s lots of evidence that says writing tests reduces bug density (which is awesome), but that alone isn’t necessarily going to persuade you to take the time to do them. What made me adopt a workflow where I write tests first? The fact that I enjoyed it!


Lodash, Knockout, and functional programming

Lodash, Knockout, and functional programming

Lodash and functional programming offers some wonderful ways to make code cleaner and more readable. But they don’t always play nice if you happen to use Knockout observables. I’m going to introduce a way to make handling observables in functional style easier.


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