This is the code for the article "React 19 introduces full support of Web Components".

This monorepo repository uses npm workspaces and contains three packages:

• web-components, that has a web-counter component
• react-18, React app using the web-counter component with React 18.
• react-19, React app using the web-counter component with React 19.

Ho to run

• First, you need to install all dependencies and link packages in the monorepo. To do this, call in the terminal npm install.
• To run React 18 app, call in the terminal npm run dev -w=react-18
• To run React 19 app, call in the terminal npm run dev -w=react-19