Leonardo Maldonado

Leonardo is a full-stack developer, working with everything React-related, and loves to write about React and GraphQL to help developers. He also created the 33 JavaScript Concepts.

Web React
Understand Recoil in React

Learn about a new library created by Facebook called Recoil, which brings new concepts such as atoms and selectors to React, and solves a few complex problems.

by Leonardo Maldonado
September 09, 2020 Share
Web
The Guide to Arrow Functions in ES6

Learn more about one of the most powerful features of ES6: arrow functions. We'll learn how we can have better, more concise, and more powerful functions in JavaScript.

by Leonardo Maldonado
March 12, 2020 Share
Web
Intersection Observer API Makes Lazy Loading a Snap

Learn about the Intersection Observer API—a powerful way to lazy load elements in our applications.

by Leonardo Maldonado
March 05, 2020 Share
Web
Master these JavaScript Fundamentals to Land Your Next Job

We're going to learn about JavaScript concepts that could significantly help you get your next job — from closures to array methods, you'll learn what JavaScript concepts you should master to land a new job.

by Leonardo Maldonado
February 20, 2020 Share
Web React
Better Modals in React

Creating modals was never such an easy task! Now we're able to create them using a React API called Portals. We're going to learn about Portals and how we can use them to create modals in React.

by Leonardo Maldonado
January 27, 2020 Share