Complete Intro to React v6 is the course website and lesson repository for Brian Holt’s Frontend Masters React curriculum. It guides learners from plain React rendering through JSX, components, user input, hooks, effects, and custom hooks. The course then adds composition, routing, class state, error boundaries, context, portals, and refs. Intermediate sections examine Redux, code splitting, server-side rendering, Tailwind CSS, testing, and TypeScript migration. A separate companion repository provides incremental project snapshots for each major lesson. The material also covers supporting tools such as npm, Parcel, Babel, ESLint, Prettier, and browser development utilities. ...