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
Making Your Code Type-Safe with Zod

Discover how Zod can help improve your code’s type safety, leading to better software and a smoother development experience. Plus it easily integrates with existing TypeScript and JavaScript projects.

by Leonardo Maldonado
March 15, 2024 5 min read Share
Web
A Beginner’s Guide to IndexedDB

See the basics of IndexedDB—create a database, add data, retrieve data and delete data—and advanced topics such as indexing, transactions and versioning.

by Leonardo Maldonado
February 22, 2024 7 min read Share
Web React
Learn How to Use the useMemo Hook Once and for All

Dive deep into React’s useMemo hook and learn when to use it, when to avoid it, and what mistakes to steer clear of so you can reduce expensive computations.

by Leonardo Maldonado
February 05, 2024 6 min read Share
Web
Fully Typed with tRPC

Learn about tRPC and how it can help us remotely call backend functions on the client side using TypeScript inference for working fast and efficiently with API.

by Leonardo Maldonado
September 22, 2023 5 min read Share
Web
Pattern Matching with TypeScript

See how pattern matching is a more reliable solution for complex conditional statements than if-else.

by Leonardo Maldonado
September 15, 2023 6 min read Share