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Web development

HTML, CSS, JavaScript, React, Next.js, Git: step-by-step tutorials to build your own website or tool.

What is JSON?

Find out all you need to know about JSON, the world's most widely used format for API calls, and discover why it's a must-have.

Understanding the Window object with JavaScript

Find out all about the Window object with JavaScript: URL manipulation with window.location, history with window.history, DOM with window.document, browser with window.navigator, and screen with window.screen.

Code faster with React using these techniques

Learn how to code faster with React thanks to simple but effective techniques used by experienced developers.

5 must-know methods for JavaScript ES 2023

Discover the 5 must-have methods in JavaScript ES 2023. Boost your skills with the latest ECMAScript features like findLast(), findLastIndex(), and much more.

How to create a custom 404 error page for NextJS?

Customize your 404 error page with NextJS for the brand-new App router, and make your users' experience more pleasant.

How to create an NPM package with Node.js

Learn how to publish your own npm package with Node.js and npm. Step-by-step guide to initializing, creating, publishing and updating your JavaScript package on npm.

How to center with CSS?

Discover all the ways to center with CSS once and for all.

React vs NextJS: what should you choose for your project in 2025?

Which technology should you use, React or NextJS? Discover their advantages and disadvantages to choose the one best suited to your projects.

React vs VueJS: which framework to choose in 2025?

Discover the differences between React and VueJS to choose the best framework for your project.

React vs Angular: differences, advantages and disadvantages in 2025

Find out which of React or Angular would be the best choice for your project by understanding their pros and cons in our comprehensive comparison.

React vs React Native: differences, advantages and disadvantages

Explore the differences between React and React Native, and their advantages and disadvantages, to help you choose the right technology for your project.

Understanding .env files with ReactJS

Find out how to really use the .env file with React or NextJS so you never make a mistake again.