Patterns.dev is free book on design patterns and component patterns for building powerful web apps with vanilla JavaScript and React. Lydia Hallie is a full-time software engineering consultant and educator that primarily works with JavaScript, React, Node, GraphQL, and serverless technologies and Addy Osmani is an engineering manager working on Google Chrome. Together they teamed up with some web friends from around the world to bring us a new way to think about Patterns in JavaScript on the modern open web.
https://www.patterns.dev)
