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
Functional Programming in TypeScript

Let’s see how we can combine functional programming and TypeScript to build highly reusable and maintainable software.

by Leonardo Maldonado
September 29, 2022 Share
Web React
Using TypeScript With React in a Large Code Base: Challenges and Tips

Wonder what challenges lie ahead when you want to use TypeScript with React and have a large code base to migrate? Find out in this blog, along with handy tips.

by Leonardo Maldonado
August 25, 2022 Share
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Pure Functions and Side Effects in JavaScript

Let’s discuss pure functions and why they’re so important to our JavaScript code.

by Leonardo Maldonado
July 01, 2022 Share
Web React
Lightweight State Machines in React

We’ll look at useStateMachine—a very lightweight but powerful state machine hook for React applications. Essentially combining useReducer and useEffect, it comes with many advanced features such as entry and exit callbacks, guarded transitions, extended state, etc.

by Leonardo Maldonado
May 24, 2022 Share
Web React
useLayoutEffect Is a Powerful Hook

Although useEffect is enough for most of our needs, we should know about the useLayoutEffect hook—running synchronously, it can be used for things such as animations, measurements, mutations, etc.

by Leonardo Maldonado
May 17, 2022 Share