JavaScript

Optimizing events in JavaScript: debounce and throttle

In modern frontend applications, interface smoothness and browser performance are critical. Many JavaScript functions are triggered by fast, repeated user...

JavaScript – Recursive function example

What is a recursive function A recursive function is a function that calls itself. It keeps doing so until it...

What Is JSX (JavaScript XML)?

What Is JSX (JavaScript XML)? JSX is a syntax extension for JavaScript that allows you to write HTML-like structures directly...

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:...

Object destructuring in JavaScript

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

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...

jQuery infinite scroll image gallery

Infinite scroll gallery is a simple and difficult task at the same time. It all depends on how you want...

What is hoisting in javascript?

Every junior front-end developer should know what hoisting is. This issue can be easily understood, so if you have not...

How to check if string contains substring in javascript

Depending on what you currently want to achieve, you can use several solutions to check if the string contains substring:

How to copy an array in javascript?

We have array [“javascript”, “jest”, “fajny”, 1, 2, 3]. Let’s see what’s happends, if we want to copy it and...