Ooh, hello there!
Assorted ramblings poured from my mind onto the page... This is kind of a blog.
Topics include JavaScript, React, functional programming and app development.
If you have ever wondered, the guy on the left it’s me and the dog on the right is Ares 🐶
What I build now, in 2026
You 🤝 Przemysław?Riddle me this: a hire page
PrzemoFlack: DM the AI me, it always replies
MigawkiStarted as a song, ended as a game
WyroczniaAsk Klaudia anything, she says yes or no
Korpo TłumaczCorporate speak into plain words
All 2026 apps and free tools →
* The rest of this page is kept exactly as it was in 2017, on purpose: compare it with the tiles above to see how far things have come.
Creating contact forms with nodemailer and React
Draft · 5 min read
Creating a contact form is a very common requested feature, almost every site has one. Creating the HTML form is easy, however there must be some back-end code to transfer those messages. I will show you how to create simple form and wire that up to send contact form submission to your Gmail account.
Data as code modules
Draft · 2 min read
What would happen if you begin treating data and other assets like you threat the code? It would allow you to consume the data and without the mess of parsing, fetching and other annoyances. You would be able to use common programming features to filter and create new views. Data and code deserve equal treatment!
Debugging JavaScript - The Basics
Draft · 5 min read
When it comes to debug a JavaScript code the first thing is to cry in despair because of the lack of proper tools. It is kind of trade-off between wild dynamic programming vs more static and type safe code. Let’s explore what we can do about it and bravely fight nasty bugs!
Traversable Objects in JavaScript
Draft · 2 min read
Objects in JavaScript are commonly used as dictionary data structure and by that there is strong need to process them in the functional way. However, there are no easy way to map, filter and reduce them like arrays. Therefore many great libraries come with many helper functions, but most of them lack common interface with ease of processing arrays.