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Use Git Bisect to Find the Commit That Introduced a Bug
7/5/2021
As a developer you know that situation: the code worked like a charm and suddenly there is a bug but you have no idea where and when it was…
My Top React Interview Questions
6/29/2021
This article summarizes a list of React interview questions that I would ask candidates and that I get often asked in interviews. Table of…
How to Use Environment Variables to Store Secrets in AWS Amplify Backend
5/25/2021
The twelve-factor app is a known methodology for building software-as-a-service apps. One factor describes that an application's…
Build and Deploy a Serverless GraphQL React App Using AWS Amplify
5/7/2021
Recently I recognized that some SaaS (Software as a Service) products use AWS Amplify which helps them to build serverless full-stack…
Run, Build & Deploy Stencil and Storybook From One Repository
3/25/2021
I recently joined a project where the team used two separate Git repositories for their web components based on Stencil and Storybook…
Debug Why React (Re-)Renders a Component
2/26/2021
React is known for its performance by using the Virtual DOM (VDOM). It only triggers an update for the parts of the real DOM that have…
How to Deploy a Heroku Backend to a Netlify Subdomain
1/12/2021
On my main domain mokkapps.de I have deployed my private portfolio website. For different use cases, I want to have a Node.js backend…
Monitoring Spring Boot Application With Micrometer, Prometheus And Grafana Using Custom Metrics
10/26/2020
It is important to monitor an application's metrics and health which helps us to improve performance, manage the app in a better way, and…
How To Automatically Generate A Helpful Changelog From Your Git Commit Messages
9/7/2020
Creating a changelog is a usual task if a new software version is going to be released. It contains all the changes which were made since…
How I Built A Self-Updating README On My Github Profile
7/15/2020
On Hacker News I discovered the article Building a self-updating profile README for GitHub . I was very fascinated about this new GitHub…
Property Based Testing With Typescript
5/29/2020
In my current project my colleague Michael Seifert introduced property based testing in our Python codebase. It was the first time I heard…
How To Generate Angular & Spring Code From OpenAPI Specification
3/2/2020
If you are developing the backend and frontend part of an application you know that it can be tricky to keep the data models between the…
Sending Message To Specific Anonymous User On Spring WebSocket
2/10/2020
In my current, I had the opportunity to develop a new application based on Vue.js in the frontend and Spring Boot in the backend. The…
Manually Lazy Load Modules And Components In Angular
1/7/2020
In Angular enterprise applications, it is often a requirement to load a configuration from a server via HTTP request which contains a UI…
How To Build An Angular App Once And Deploy It To Multiple Environments
12/9/2019
In my last projects, we always had the same requirement: Build the application once and deploy the same build fragment to multiple…
The Last Guide For Angular Change Detection You'll Ever Need
11/18/2019
Angular's Change Detection is a core mechanic of the framework but (at least from my experience) it is very hard to understand…
JHipster - The Fastest Way To Build A Production-Ready Angular & Spring Boot Application
9/23/2019
The last years I mainly worked on the frontend part of web & mobile applications but I also did some minor backend work. Since mid of this…
How To Easily Write And Debug RxJS Marble Tests
9/9/2019
End of 2018 I wrote an article about how I write marble tests for RxJS observables in Angular. The content in there is still valid but I…
How I Set Up A New Angular Project
7/6/2019
Update November 2019: Updated article with some additional tips Update September 2019: Added error handling In my opinion, Angular is the…
NestJS - The missing piece to easily develop full-stack TypeScript web applications
4/15/2019
I think we all know this problem: You need to develop a new web application and therefore you need to implement the core of the application…
How I Built A Custom Stepper/Wizard Component Using The Angular Material CDK
12/25/2018
Update 12.02.2018: Meanwhile I have created a PR to the Angular Material repository and added there an official guide Recently I had to…
The Engineering Behind My Portfolio Website
12/12/2018
I created my first personal website in 2017 when I launched my first smartphone game . I use Google Analytics in this game and it is…
Why A Good Frontend Developer Should Care About Web Accessibility
11/24/2018
Back in 2017, when I started frontend development, I heard an interesting talk with the title "Aesthetics of the invisible" from my former…
How I Write Marble Tests For RxJS Observables In Angular
11/12/2018
I am a really passionate Reactive Extensions user and mostly use them in RxJS which is integrated into the Angular framework . In…
Sticky Footer in GatsbyJS using Flexbox
9/20/2018
I have recently developed some static websites based on GatsbyJS which have a sticky footer. A sticky footer is always positioned on the…
Run Automated Electron App Tests Using Travis CI
9/6/2018
Last year I developed the Standup Picker which is an Angular application running in an Electron shell. As I released new versions…
How I Increased My Productivity With Visual Studio Code
5/31/2018
In this post I will describe how I increased my productivity by learning how to use Visual Studio Code in a more efficient way. But in…
Lessons Learned: My First Smartphone Game
5/22/2018
In 2017, I have released my first smartphone game "Supermarket Challenge" for iOS and Android . I learned a lot of stuff during the game…
How I Built My Website With Hugo And Netlify
5/19/2018
End of last year I started working on my private portfolio website and started to research how to easily build and deploy such static…
My First NPM Package: github-traffic-cli
5/12/2018
Since I published my first projects on GitHub I really enjoyed viewing the traffic on my repositories. It is really interesting to see how…
My First Visual Code Extension
5/11/2018
I am really a big fan of Visual Code and use it as my main IDE for software development. The available selection of extensions (see the…