React Components & Props: Composition from Zero to Hero
A deep, practical guide to designing React components and typing their props with TypeScript — props as a read-only contract, typing props with type vs interface, optional values and defaults, children and React.ReactNode, composition patterns (wrappers, slots, specialized components), forwarding props to the DOM with rest and React.ComponentProps, discriminated-union props for variants, prop drilling and why composition beats configuration, common mistakes, and hands-on exercises with solutions.