December 09, 2017


I’m not from the generation that really wrote leet online, nor can’t I say I master it. But nevertheless, as an alternative script for latin characters, 1337 or leet or eleet or 31337 speak opens up a lot of nice alternative ways of writing. With the wide support of UTF-8, the “traditional” ASCII-based leetspeak can be extended with UTF-8 quite easily.

My first 1337 PHP class dates from about 2008, which is 10 years ago. Since then I’ve learned a lot, and not only in programming of course. Let’s bring the old code to 2018, let’s JavaScriptify it!


May 10, 2016


Twitter bots are all around. I love them. I made some, and I follow a lot of them. Some time after π-day (or pi-day) last March (it’s March 14th every year), I came upon the idea to create a Twitter bot that posts irregularly decimals of π. It starts, of course, with π and a lot of its decimals…

module.exports = '3.141592653589793238462643383279502884197169399';


February 15, 2015

There's more

I’ve got this domain name already eleven years. Quite some different layouts have been here. Also, a lot of different content has been shown. Most of the smaller projects I’ve put online are located in sub folders of this root and are not referenced anymore. I had the idea to make a roundup, a cleanup and a blog post about some of them. Checkout out for example my Leetifyer!


December 01, 2014

Do Rewrite Yourself

I decided, in advance of If Hemingway Wrote Javascript, to start rewriting parts of my own code. I was delighted to see the variaty of implementations of algorithms within the book. Wether it is a good or bad part of JavaScript that anything can be written in different ways, why then settle with the first result of my own coding? Why not give it another take?


November 16, 2014


It was not a big surprise to read that Angus Croll is from the UK. Since he’s an employee of Twitter, my first guess was he’d be an American, but after reading a couple of chapters in ‘If Hemingway wrote JavaScript’, I found that hard to believe, since his vocabulary is more similar to the lists of words I had to learn in high school, than to what you regularly hear on Dutch television of US sitcoms.


October 14, 2014

fronteers14 part 2

In my rondup of day one of Fronteers Conference 2014 I tried to touch most speakers at least briefly. For day two I want to do the same. As said, Fronteers 2014 is a well organised conference and one of high quality: speakers from Twitter, Google and Etsy are part of the line up. In addition to that it is held in a beautiful venue and a good lunch is served!


October 09, 2014


So I was looking forward to Fronteers14 since their first announcement and ticket sales last April. I was so much looking forward to it because I attended Fronteers13 also and I was very much impressed by the richness and amount of information you receive in such a short time span. That really is the up-side of visiting conferences.

The venue is as always a beautiful place to spend some time. The Tuschinski Theatre was built in the 1920s in the then popular Art Deco style. If you might get bored during a talk, just take a look around, you’ll see so much nice details: visually a very attractive spot.

Just days before the start, some speaker mentioned physical discomfort: feeling sick and/or having a cold, that I was hoping none of all speakers really would call off for the conference.


February 18, 2014

Hamiltonian Cycle

Visiting the Gemeente Museum Den Haag I came across a painting I knew already for quite a while, and which I like very much, but now it triggered something. Looking at Vilmos Huszár‘s painting Compositie II (schaatsenrijders) from 1917, I saw, although being sober, the ice skaters move from spot to spot on the painting. I thought: wouldn’t it be great to animate this?

Vilmos Huszar