Blog

Help, is er een Craftsmen engineer in de buurt?

by Craftsmen April 23, 2018

We zijn ons ervan bewust dat er een wereld om ons heen is. Eentje die verder gaat Software Development, IT Workshops, Java en LEGO. Een non-digital wereld waar we óók graag van betekenis voor anderen willen zijn. Jaarlijks rond Kerstmis kiezen we er daarom voor om niet onszelf...

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Development automation met Atomist – Java Magazine

by Michel Schudel April 19, 2018

Als ontwikkelaars willen we vooral bezig zijn met het schrijven van toffe code. Helaas zijn we een flink deel van onze tijd kwijt aan allerlei saaie randzaken. In dit artikel neem Michel Schudel daarom het Atomist-platform onder de loep. Atomist neemt een groot deel van...

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Storing lengthy titles in Oracle database

by Remco Weekers April 4, 2018

Recently we ran into a bug in our software. We couldn’t store long titles because our database columns are constrained to 180 characters. Until then we hadn’t anticipated on, nor entered titles this long. To store the records in the database again, we truncated the...

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Sharing Angular components / modules easily

Sharing Angular modules like a boss

by Dirk Luijk March 29, 2018

What forRoot and forChild have to do with lazy loading You just created a beautiful Angular component. Now, being the exemplary developer that you are, you want to share it with others. In Angular, you achieve this by moving it to a separate NgModule. The...

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Drag ‘n Drop in Angular: Part 1 – The Draggable Directive

by Dirk Luijk March 22, 2018

The first part of this series starts with the foundation: the draggable directive. This directive has only one responsibility: tracking the dragStart, dragMove and dragEnd events. Background To have the ultimate freedom, I recommend to stay away from the HTML5 Drag and Drop API. Of course, HTML5...

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Drag and drop in Angular (new #tutorial series!): introduction

by Dirk Luijk March 22, 2018

Remember using jQuery UI's Draggable and Droppableplugins, for building drag and drop features in web applications? Awesome, wasn't it? Now, what if we could implement drag and drop functionality just as easily in Angular projects? Over the last months, I have been improving my drag and drop implementations...

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Optimize your Angular app using trackBy #tutorial

by Dirk Luijk March 15, 2018

This blog is part of an Angular instructional / tutorial series, please find the first edition here: Angular structural directives demystified. Optimize your Angular app using trackBy When rendering lists using Angulars ngFor directives, objects are compared by reference. This is fast, but can result in unwanted DOM manipulations. Luckily,...

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Angular structural directives demystified #tutorial

by Dirk Luijk March 8, 2018

This blog is part of an Angular instructional / tutorial series, please find the second edition here: Optimise your Angular app using trackBy. Angular structural directives demystified As Angular developers, we use structural directives like ngIf and ngFor all the time. But how do structural directives actually work? Structural directives...

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Java 10 in 5 minutes

by Michel Schudel February 14, 2018

From Java 9, Oracle will release a new version of Java every 6 months, starting with Java 10, which is to be released on march 20, 2018. This blog highlights the major language and API changes in Java 10. Local variable type inference For local...

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Courier carrier Uber software web application

Smart Express, a hobby project

by Erik Kerkhoven February 8, 2018

In the summer of 2015 I started building a web application for a friend who owns a small courier company, named Smart Express. Smart Express picks up packages at a specified locations and delivers them to other locations. Additional services and options aside, prices are...

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Van bolle monoliet tot futuristische microservices

by Richard Aalten December 19, 2017

bol.com is een webwinkel in Nederland en België die in 1999 werd opgericht door het Duitse mediaconcern Bertelsmann AG. Het hoofdkantoor staat in Utrecht. Na een aantal moeizame beginjaren is bol.com ondertussen uitgegroeid tot de Beste webwinkel van Nederland en in 2014-2015 zelfs tot Beste webwinkel van Europa. Door deze...

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An introduction to Machine Learning with Apache Spark

by Craftsmen December 14, 2017

A while ago I followed a course in Machine Learning on Coursera. In this course I did some exercises in R, which is a language suitable for statistical computing and data analysis. Because I am a Java software engineer, I wanted to try to do...

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Development automation met Atomist – Java Magazine

Storing lengthy titles in Oracle database

Sharing Angular modules like a boss

Drag ‘n Drop in Angular: Part 1 – The Draggable Directive

Drag and drop in Angular (new #tutorial series!): introduction

Optimize your Angular app using trackBy #tutorial

Angular structural directives demystified #tutorial

Java 10 in 5 minutes

Smart Express, a hobby project

Van bolle monoliet tot futuristische microservices

An introduction to Machine Learning with Apache Spark

Test method naming, the right way

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