TypeScript Patterns for React — Type-Safe Component Architecture
TypeScript should make React development easier. For most developers, it creates friction: type errors that don't make sense, generics that feel like guesswork, and components that compile but behave wrong in ways the type system missed.These 20 patterns fix that. Each one solves a specific problem that comes up repeatedly in real React codebases.Who This Is ForReact developers who know TypeScript basics but still fight the type system more than they'd like. Mid-level to senior engineers building component libraries, forms, or data-heavy UIs.What's Inside Generic components — reusable components that maintain type safety without casting to any Discriminated unions for component variants — model button variants, card types, and state machines correctly so impossible states are unrepresentable Type-safe forms — strongly typed form state, validation errors, and submission handlers Custom hooks with generics — data fetching, local state, and context hooks that preserve type information through the chain Conditional prop patterns — components where some props only make sense when other props are present Context with proper typing — no more as any casts on context consumers Event handler types — the correct types for onClick, onChange, onSubmit, and custom synthetic events Ref forwarding patterns — typed refs that work correctly with forwardRef and useImperativeHandle After These PatternsYou'll catch component misuse at compile time instead of runtime. You'll write generics with confidence. You'll stop reaching for as any as a workaround. Each pattern includes the problem, the wrong approach, the correct solution, and when to use it.$29. One fewer production bug caught by a type error you didn't have to manually test for. 30-day refund if it doesn't deliver.
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