Blog
Hello 👋, thanks for being here. I am Mario, a Software Engineer from Austria.
In a nutshell: After my apprenticeship as a Process Control Technician (electrical engineering in factories with programming in Siemens Simatic-PLC7). I decided to switch to the dark side (Marketing) and during this period of time I discovered how empowering and rewarding it can be to build applications and see an idea coming to life. I have built and/or was part of a team who built applications and platforms (mainly in JavaScript) and I have learned a lot. I like writing (studied Marketing & Communications) and I love to share the lessons I have learned. Hope you enjoy my articles and your feedback and comments are always welcome. 😊
7 min read
How to write a custom ESLint rule
Customize ESLint and enforce a specific rule
4 min read
How to add husky to Angular
Use husky to reduce errors and have a consistent codebase
6 min read
How to create a web server in Node.js
Use Node core APIs to create a minimal web server
2 min read
How to dynamically load ESM in CJS
Use dynamic import() as workaround
3 min read
How to convert a CJS module to an ESM
Converting CommonJS to EcmaScript modules
2 min read
How to create a CJS module
Use modules to write reusable code in Node.js
12 min read
How to stream to an HTTP response
Use streams to efficiently send a large file as an HTTP response
6 min read
How to handle binary data in Node.js?
Handle binary data in Node.js with the Buffer constructor
7 min read
Routing in Express.js explained
All you need to know about routing in the Express Framework for Node.js
6 min read
What Is the Express Node.js Framework?
Understand core concepts of the Express server Node.js framework,
4 min read
Forwarding refs to components
Automatically pass a ref to a child component
12 min read
How to use streams to ETL data?
Learn how to use streams to extract, transform and load data
3 min read
Media queries with styled components
Responsive styling using styled components
5 min read
How to connect streams with pipeline?
Learn what pipeline does, and how to connect streams using pipeline
4 min read
How to handle stream errors?
If a stream error is not handled, it can crash your application.
6 min read
How to connect streams with pipe?
Learn what pipe does, and how to connect streams using pipe
6 min read
What Is a Node.js Stream?
Limitations, benefits and use cases for Node.js streams
7 min read
Handling Errors in Node (asynchronous)
Creating, managing and propagating errors in async scenarios.
6 min read
Handling Errors in Node.js (synchronous)
Creating, managing and propagating errors in sync scenarios.
6 min read
Introduction to errors in Node.js
Creating, managing and propagating errors in sync and async scenarios.
5 min read
Callback to promise-based functions
How to convert callback to promise-based functions.
6 min read
ETL: Load Data to Destination with Node....
Create the third phase for an ETL pipeline in Node.
5 min read
ETL: Transform Data with Node.js
Create the second phase for an ETL pipeline in Node.
5 min read
ETL: Extract Data with Node.js
Create the first step for an ETL pipeline in Node.
5 min read
Event Emitters in Node.js
Create and consume event emitters
3 min read
How to set up SSL locally with Node.js?
Use SSL in your local development environment
4 min read
How to use async/await in Node.js
How to use async/await with Promises in Node
2 min read
What is an API proxy?
Understand what an API proxy is and the benefits of using it.
4 min read
How to make an API request in Node.js?
3 ways to make HTTP requests in Node.js
9 min read
How does the Event Loop work in Node.js
One of the most important aspects to understand about Node.js
3 min read
How to configure SSL locally in Angular?
Use SSL in your local development environment
4 min read
How to wait for multiple Promises?
Use Promise.all to wait for multiple promises in Node.js
3 min read
How to organize Node.js code
Maintainable Node.js code , easier to read and no code duplication.
5 min read
Understanding Promises in Node.js
Learn how to create and work with Promises in Node.js
6 min read
How does the Node.js module system work?
Understand how the Node.js module system can help to write reusable code.
4 min read
Set up and test a .env file in Node
Set up and test a .env file.
4 min read
How to Use Environment Variables in Node
Handle sensitive data the right way.
2 min read
How to clean up node modules?
Remove extraneous packages - manually or automatically
3 min read
Restart a Node.js app automatically
Run a node application in development mode that restarts on file changes.
4 min read
How to configure https (SSL) locally?
Use SSL in your development environment
3 min read
How to update a Node dependency - NPM?
Get the latest bug fixes and performance improvements.
3 min read
What are NPM scripts?
Bundle shell commands and automate repetitive tasks.
2 min read
How to uninstall npm packages?
Uninstall packages completely from a project - manually or automatically
4 min read
How to install npm packages?
Generate a package.json file - manually or automatically
3 min read
How to create a package.json file?
Generate a package.json file - manually or automatically
3 min read
What Is the Node.js ETL Pipeline?
Understand the concept of an ETL (Extract, Transform, Load) pipeline in Node.js.
6 min read
What is data brokering in Node.js?
Understand data brokering and different approaches in Node.js.
4 min read
How to integrate Google Material Icons
Use Material Icons via Google Web fonts or host locally
4 min read
What is Closure Scope?
Closures and lexical scoping explained
3 min read
Inheritance in JavaScript - Part 3 of 3
Prototypal Inheritance with class-syntax constructors
3 min read
Inheritance in JavaScript - Part 2 of 3
Prototypal Inheritance with constructor functions
4 min read
Inheritance in JavaScript - Part 1 of 3
Inheritance in prototype-based Javascript explained
3 min read
JavaScript functions in a nutshell
Basics: Functions in Javascript explained
5 min read
Data types in Javascript explained
Basics: Built-in data structures and data types
5 min read
How to trigger data fetching with React ...
Fetch data with useEffect Hooks programmatically/manually
4 min read
How to read and write JSON Files with No...
Save data between restarts
3 min read
What is package-lock.json?
Avoid installing different versions from the same module
3 min read
How to install Node.js locally with nvm?
Manage multiple versions of Node.js.
3 min read
How to update Node.js?
The proper way to upgrade Node.js
3 min read
How to check unused npm packages?
Minimize your code with removing unused one.
4 min read
How to publish a Gatsby app to Github pa...
Publish your Gatsby website for free to github pages
5 min read
What is the Node.js fs module?
Built-in Node.js file system module
4 min read
What is Semantic versioning?
Semantic versioning in Node.js
9 min read
The Basics of Package.json explained
Core element of Node.js ecosystem - package.json
4 min read
React Hooks: Loading Indicator and error...
Error handling when fetching data with useEffect
4 min read
How to fetch data with React Hooks
Fetch data with useState and useEffect Hooks in React
3 min read
CSS Animations with Styled Components
Animations with @keyframes
3 min read
How to create gradient text with CSS
Gradient text effect explained
3 min read
Style active state of Links in Styled Co...
Conditional styling of menu items
4 min read
Introduction to forms in Angular
Handling user input with forms in Angular
4 min read
CSS Units - REM or EM
Adaptability and Flexibility with relative units
4 min read
What is JSX and why to use it?
Introduction to JSX in React
5 min read
How to use the React useEffect Hook
The useEffect Hook lets you perform side effects in function components.
3 min read
How to translate MatPaginator
Translate Angular`s MatPaginator (Material Design Components)
5 min read
How to use the React useState Hook
The useState Hook makes function components stateful
2 min read
How to add Tailwind CSS
The easy way to add Tailwind CSS to Gatsby
4 min read
React Hooks at a Glance
How to use React Hooks
3 min read
How to patch an NPM dependency
Fix a bug in a dependency without waiting for the maintainer
5 min read
How to make shapes with CSS
Basic shapes with a few lines of CSS
5 min read
What is NPM audit?
Take advantage of the build-in security tool
3 min read
How to add Yandex.Metrica in Gatsby
Three easy steps to add website tracking to your website
6 min read
Getting started with Angular
Introduction to Angular and what are the benefits of using it
4 min read
Beginner`s guide to NPM
Getting started with the Node Package Manager
6 min read
CSS units explained
Absolute vs. Relative Units
6 min read
Getting started with Node.js
Introduction to Node.js and how to run JavaScript outside the browser.
4 min read
How to copy/clone objects in javascript
Avoid pitfalls when copying objects - shallow/deep
3 min read
How to add Google analytics in Gatsby
Three easy steps to add website tracking to your website
3 min read
How to use styled components in Gatsby
Composing custom useStaticQuery hooks
2 min read
How to create custom hooks in Gatsby
Composing custom useStaticQuery hooks
5 min read
How to copy/clone arrays in javascript
Avoid pitfalls when copying arrays - shallow/deep
6 min read
Create the classic Snake game - React II
Styling, Improvements and Features
8 min read
Create the classic Snake game - React I
Start from scratch (Create-React-App, Typescript, React Hooks)
3 min read
How to setup an RSS feed in Gatsby
Add a distribution channel for your site’s content
6 min read
ESLint with Gatsby
How to use and customize ESLint with Gatsby
10 min read
What is linting?
How to keep a consistent coding style and avoid bugs before production.
5 min read
What is recursion?
Divide and Conquer - simply explained without Fibonacci.
7 min read
What is a REST API - everything you need...
Architecture style, methods and constraints simply explained.
3 min read
How to automatically post from Gatsby to...
Step-by-Step tutorial on how to setup automation.
4 min read
Terminal commands every developer should...
Get things done faster with these seven terminal commands
5 min read
How to write your first blog post as a d...
I researched how to write a successful blog post, so you don't have to.
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