Event delegation and event propagation in JavaScript

1. Event propagation Event propagation is the way events travel through the DOM tree. There are two directions of propagation:...

CSS background image and color

In CSS, the background property is used very often. It lets you add background colors, images, gradients, and many other...

Code review: Common mistakes found in developers code

Code review is not only a learning opportunity for the person whose code is being reviewed. It is also a...

Security by Obscurity – Why Hiding Is Not Security

In the world of IT, it’s easy to come across practices that look clever at first glance but are little...

Cognitive Biases in the World of IT

In the technology industry, dozens of decisions are made every day, from architectural choices and implementation details to estimates and...

5 years with code: the most important lessons that change how you think about being a web developer

The first years of commercial work in IT are an intense period of learning, not just technology, but most importantly...

What are data- attributes in HTML and what are they used for?

Data- attributes in HTML – what are they and what are they used for? When writing a website in HTML,...

Object destructuring in JavaScript

Object destructuring is a syntax in JavaScript that allows you to extract values from objects and assign them to variables...

Midnight Commander (MC) and color customization in linux

Midnight Commander (MC) is a free and open-source file manager that provides a text-based user interface. It is available on...

Multiple sliders on one page with simple jQuery slider

If you’re reading this post then you probably have problem with slider, that don’t work correctly if occurs several times...