On 30 May 2022 the BrabantJUG will organise it’s first meetup! And we will kick off with sessions from 2 great speakers, Hubert Klein Ikkink will teach us more about Clojure and Jan-Hendrik Kuperus will talk about Mastering Your Tools!
The meetup will be held at Alphabet in Breda, Takkebijsters 61, 4817 BL, Breda.
Timetable:
17:00 Doors open
18:00 Food
18:50 Introduction
19:00 Clojure: a functional and pragmatic JVM language by Hubert Klein Ikkink
19:45 Break
20:00 Master your tools by Jan-Hendrik Kuperus
20:45 Drinks
Hubert Klein Ikkink
Java/Groovy Developer and Consultant at JDriven
Hubert Klein Ikkink is also known as mrhaki. He uses his alias to write on his blog “Messages from mrhaki” (https://blog.mrhaki.com/). On this blog he writes short tips and tricks about Groovy, Clojure, Gradle, Spock, Asciidoctor, Micronaut and other subjects. Some of the blog posts are bundled into electronics books that can be purchased or downloaded from https://leanpub.com/u/mrhaki. Today he works with Java during his daytime job at JDriven in the Netherlands. He also wrote books on Gradle published at Packt Publishing and spoke at different conferences and meetups.
Clojure: a functional and pragmatic JVM language
Clojure is a hosted language that can run on the JVM (and Javascript) that is designed as a fully functional language (no cheating) with immutable data structures. We can choose from a limited set of data structures, but a lot of functions that work on the data structure. “It is better to have 100 functions operate on one data structure than to have 10 functions operate on 10 data structures”. The syntax of the language is very simple and provides some basic forms that can be used for a lot of the problems we want to solve.
As the language runs on the JVM we can compile our application to Java classes and package them in a JAR file to be run on the JVM. But we also can use all Java classes available in the JDK, but also Java libraries in our Clojure code.
Clojure comes with a REPL (Read-Eval-Print-Loop) which can be used to have an interactive enviroment with your application where we can change function implementations on the fly and try things out quickly.
During the talk we will quickly cover the syntax, types, the data structures and ideas behind the language. We will use the REPL to show some of the feature of Clojure in a demo.
Jan-Hendrik Kuperus
Director & Architect @ Yoink
Jan-Hendrik is a passionate developer who is not afraid to break something open in order to find out how it works. Almost ten years ago, that is how he learned to use the Axon Framework to build Event Sourced systems. As a long-time user and occasional contributor to the Axon Framework, he has previously presented talks on AxonIQ’s yearly DDD conference. Apart from work, he tinkers with Arduinos and Raspberries at home, plays with LEGOs with his kids and runs the occasional Factorio speedrun.
Master your tools
Tired of agile workshops? Looking for some productivity tips that benefit you? It’s time to get selfish and learn how to do the same work you always do, but spend less time doing it.
In a time where tools are plenty and new ones pop up constantly, I believe most of us don’t look beyond the getting started of their tools. In this talk I will demonstrate some kick-ass productivity features of IntelliJ and some other well-known tools, as well as showcase a series of lesser-known tools all aimed at making your life easier. After all, less typing means more time for sword fighting, err creative problem solving.
Some of the tools are quite focused around the use of a Mac, but where possible I will point out similar tools for other platforms. If you’re impatient and wondering if this talk is worth your valuable time, here are just a few things you might learn: automatic creation of projects, highly automated Git workflow, turning your terminal into your best friend and how to make a Soundboard and Smiley Picker, because I suddenly had time on my hands. 😁