Developer guides, tutorials, and deep dives from the SnipShift team.
Learn how to type objects with dynamic keys in TypeScript using Record, index signatures, Map, and template literal types. Includes real-world API response examples.
Learn TypeScript discriminated unions with real examples API responses, state machines, and form steps. Replace messy if/else chains with exhaustive pattern matching.
Learn TypeScript conditional types with real use cases unwrapping promises, extracting props, filtering unions. Practical patterns you'll actually use in production.
A practical TypeScript cheatsheet with tables for primitives, utility types, generics, mapped types, template literals, and React-specific types.
Build a reusable, fully typed fetch wrapper in TypeScript generic responses, Zod parsing, error unions, timeouts, retries, and interceptors.
Learn how to type window and document in TypeScript extend the Window interface, add custom global properties, handle SSR guards, and configure lib in tsconfig.
Learn how to type useReducer in TypeScript using discriminated unions for actions, proper state typing, and async patterns. No more 'any' dispatches.
Learn how to type Socket.io events in TypeScript with shared event maps, typed emit/on, namespace typing, and acknowledgment callbacks. Full client + server guide.
Why Object.keys() returns string[] instead of keyof T, and how to build a type-safe wrapper. Covers structural typing, Object.entries(), and Record iteration.
Build a type-safe localStorage wrapper in TypeScript with generics, Zod validation, and SSR safety. Stop parsing JSON into 'any' from browser storage.
Build a generic, type-safe event emitter in TypeScript with typed event maps, emit/on/off methods, and full type checking. Includes Node.js and mitt alternatives.
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 process.env in TypeScript using declare global, interface ProcessEnv, and module augmentation no more 'any' types for env vars.
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