Hi, I’m Tomek.

A detailed guide to evaluation strategies in programming languages. By using JavaScript, C++, and Haskell code examples I explain the differences between strict and non-strict evaluation, call by value, call by reference, and call by need. If you ever wondered if JavaScript is a pass-by-value or pass-by-reference language or what are the pros & cons of lazy evaluation, this is for you.

Wouldn’t you love for your changes to be merged quickly and any potential issues identified straightaway? We can all do that by paying as much attention to our pull requests as we do to our code. In this post let's dissect what a great pull request is and how it helps us save time and make valuable contributions to a project.

Creating JSON strings with JSON.stringify or parsing them with JSON.parse is something JavaScript developers do almost on a daily basis. However, there's more to it than meets the eye. In this post we’ll have a detailed look into JSON.stringify’s replacer function, indentation customization, toJSON method, and JSON.parse’s reviver function.

Being productive in a standard onsite office is in itself a challenge, and working remotely is no exception. It comes with its own set of challenges. Let me share what I have learned over six years of working from home.

Quick guide to basic Google App Engine deployment. It explains how to deploy a Node.js application and set up a continuous deployment workflow with Github Actions.

There are so many ways to check if an object is empty in JavaScript. Not sure which one to use? In this post, I provide a detailed explanation of the most commonly used methods to check if an object is empty, and also compare their performance.