Blog

lifehacking1.0 — From the moment I started working with Angular (and I don’t mean AngularJS) I loved the framework. I experienced the same thing with Reactive Programming using RxJS. The cool thing is that Angular and RxJS go very well together. So, as you might expect from a big Reactive Programming fan: […]

Angular lifehack: reactive component input properties

1 mei, 2018 in Blog getagd Angular / reactive / Reactive Programming / RxJs / tutorial door Daan Scheerens

IT hulpverleners — 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 te verwennen met een mooi […]

Help, is er een Craftsmen engineer in de buurt?

23 apr, 2018 in Blog getagd duurzaamheid / mvo / social door Craftsmen

Atomist — 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 het saaie werk voor zijn […]

Development automation met Atomist – Java Magazine

19 apr, 2018 in Blog getagd atomist / automation / development automation / java door Michel Schudel

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 product title in our application […]

Storing lengthy titles in Oracle database

4 apr, 2018 in Blog getagd database / databases / oracle door Remco Weekers

Sharing Angular components / modules easily — 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 next step is to make […]

Sharing Angular modules like a boss

29 mrt, 2018 in Blog getagd Angular / lazy loading / tutorial door Dirk Luijk

Draggable directive — 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 drag ’n drop can be […]

Drag ’n Drop in Angular: Part 1 – The Draggable ...

22 mrt, 2018 in Blog getagd Angular / angular 2+ / drag 'n drop / tutorial / UX door Dirk Luijk

UX design - drag n drop — 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 in Angular several times. During […]

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

22 mrt, 2018 in Blog getagd Angular / angular 2+ / jQuery / UI / UX door Dirk Luijk

angular-app with trackBy — 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, you can avoid these using […]

Optimize your Angular app using trackBy #tutorial

15 mrt, 2018 in Blog getagd Angular / app / components / live coding / optimization / trackBy door Dirk Luijk

angular — 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 are responsible for adding, removing, […]

Angular structural directives demystified #tutorial

8 mrt, 2018 in Blog getagd Angular / github / live coding door Dirk Luijk

Java10 — 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 variables, specifying the type is […]

Java 10 in 5 minutes

14 feb, 2018 in Blog getagd java / Java 10 door Michel Schudel

Courier carrier Uber software web application — 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 based on distance, weight and […]

Smart Express, a hobby project

8 feb, 2018 in Blog getagd AngularJS / Bootstrap / Cypher / Docker / FreeMarker / Google Maps API / HTML / java / Java Mail API / JSON / Neo4J / PDFBox / Postcode API / RaspberryPI / Recaptcha / rest / Spring Boot door Erik Kerkhoven

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 enorm toegenomen populariteit is het […]

Van bolle monoliet tot futuristische microservices

19 dec, 2017 in Blog getagd bol.com / legoliseren / web / web service / webwinkel door Richard Aalten

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 it in Java. There are […]

An introduction to Machine Learning with Apache Spark

14 dec, 2017 in Blog getagd Apache Spark / Hadoop / java / Machine Learning / Python / R / Scala door Craftsmen

fork angular http — Most AngularJS developers are probably familiar with the concept of HTTP interceptors: a mechanism for modifying request and responses. This feature is commonly used for cross-cutting concerns such as authentication, logging and error handling. When Angular 2 was introduced it became clear there (initially) would be no equivalent for HTTP […]

Fork your HTTP client: supporting non-global HTTP interceptors in Angular

18 nov, 2017 in Blog getagd Angular / angular 2+ / forking / http / interceptor door Daan Scheerens

Boys will be boys - LEGOlisering bij NS — Op het NS kantoor in Amersfoort wordt hard gewerkt aan het project B@M, een systeem dat in geval van calamiteiten op het spoor zorgt voor aanpassingen in de dienstregeling. We werken daar Agile, in SCRUM-sprints van twee weken. Dat is af en toe flink aanpoten, maar gelukkig geldt hier ook: […]

LEGOlisering bij NS

16 nov, 2017 in Blog getagd Agile / Fun / NS / Scrum door Michel Schudel