Developer guides, tutorials, and deep dives from the SnipShift team.
Learn how to type useReducer in TypeScript using discriminated unions for actions, proper state typing, and async patterns. No more 'any' dispatches.
Build a type-safe localStorage wrapper in TypeScript with generics, Zod validation, and SSR safety. Stop parsing JSON into 'any' from browser storage.
Learn how to type React Context with TypeScript using generics, custom hooks, and the undefined initial value pattern. Stop using 'any' in your contexts.
Learn how to type Next.js API routes in TypeScript for both App Router and Pages Router typed bodies, params, middleware, and Zod validation patterns.
Learn how to type higher-order components in TypeScript generic HOC patterns, injected props, wrapped components, and when to use HOCs vs hooks in 2026.
Learn how to type custom React hook returns in TypeScript tuple vs object return, const assertions, generic hooks, and type inference patterns.
Compare tRPC, REST, and GraphQL for Next.js apps type safety, setup complexity, performance, and code examples to help you pick the right API pattern.
Learn tRPC from scratch set up with Next.js App Router, define procedures, validate with Zod, call from the client, and handle errors. Full tutorial.
Stop rewriting tests after every refactor. Learn to test behavior over implementation, avoid snapshot traps, and write resilient tests that actually catch bugs.
Learn how to test React components using React Testing Library. Covers setup, queries, user events, async testing, mocking hooks, and form testing with examples.
Add Stripe payments to Next.js checkout session creation, success/cancel pages, webhook endpoint with signature verification, and full TypeScript typing.
Build a sticky header that hides on scroll down and shows on scroll up. React + Tailwind implementation with smooth transitions and iOS edge cases.
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