Gunnar Gissel articles - 30 total
New Web Framework?
What if a webframework made a backend for your webpages?
What is `map` in a Java Stream
Working with streams often requires 'mapping' of objects. What is mapping, and why do people do it with streams?
Filter Null Values from a List with Java8 Lambda
Remove null values from a Collection, like an ArrayList or Set with a Java Lambda
Make an Immutable Object - in Java
How to make an immutable object, in Java. Including common gotchas, design pattern considerations and what to do with bad data.
Host a React App with Dropwizard
Build an api with Dropwizard and a UI with React - then host your UI with your api server. No proxies needed!
What's your Developer Story?
Where did you start, and how did you get to where you are today?
Taking Notes
Using bullet journal techniques to take notes and get things done
Protect Yourself like the FBI — with Memos
FBI Special Agents have long been protecting themselves by writing memos. Learn how to use the same techniques to protect yourself as a programmer
Turn Your Spaghetti Code into Functions - Part 3
How the validator pattern makes business rules easy to test, transport and package
Java 8 Stream Cheatsheet
A cheatsheet that organizes and describes the most useful methods for working with Java 8 streams
Useful Resources and Tools
I've compiled some useful resources for devloping
Newb Valley
Why improving feels a lot harder than you think it should, and how to get through it
Turn Your Spaghetti Code into Functions, Part 2
How Predicates can help clean your code
3 Phases for Building a Culture of Learning
Joseph Matsey identifies 3 phases of building a culture of learning - I describe my takeaways from his talk at Abstractions
Software Leadership Values
A clear conception of values is required to make judgement calls. Here are 11 values that I believe are important for making good software
Footnotes!
Footnotes are cool, but showing footnotes on hover is cooler
Turn Your Spaghetti Code into Functions - Part 1
Don't fight with your code, let your code fight for you. Use clever refactoring and clearly named functions to get easy, re-usable, extensible business rules.
Changing an Uncontrolled Input to Controlled Error in React
My react linter kept giving me an error and nothing I changed in javascript fixed it. A quick sprinkling of converters solved my problem
Finding Null or Empty String Checks in Java
I wrote a regex that finds many forms of checks for null or empty strings in Java, so I could replace them with a Predicate
How to Set Up Cucumber Tests for Java
Where the 3 needed parts are to create Cucumber tests in Java
Meetings for Developers
How to make meetings work for you
Managing By Whiteboard
The whiteboard is a valuable tool for managing the people that make up a project
Java 8 Functional Interface Cheatsheet
A cheatsheet that describes the 4 functional interfaces Java 8 provides
Problem Behavior Correction Flowchart
It's often difficult to separate problem behavior from the employee. This flowchart provides a framework for correcting problem behavior by identifying its underlying cause and addressing the root cause, rather than just punishing the employee to little or no effect
How to Move Mercurial Changesets to a New Branch
Sometimes you put your code in the wrong branch, but catch it in time to fix it
Organic Artisanal Small Batch vs Impersonal Factory
Two styles of running a programming shop, their benefits and my preference
Gunnar Gissel's Introduction
An introduction to who Gunnar Gissel is
How to Write a Multiline Lambda in Java 8
For the most part, single line lambda functions are all you need. This is a single line lambda: Pr...
Maven for Ant People
Ant people often find Maven completely mystifying. I know I did. I work at a shop that was, until rec...
How to Make a Program - Answering 12 Year Old Me's Question
When I was little, I loved computers. I thought they were terrifically cool and...