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Libraries
Everyday utilities worth reaching for instead of writing your own.
date-fns
A set of small, tree-shakeable date functions instead of one big Moment-style object. Good when bundle size actually matters.
Lodash
The old standby for array/object helpers, still maintained, though check if native JS or a lighter alternative already covers what you need before adding it.
React Hook Form
Uncontrolled-by-default form handling that barely re-renders, pairs well with a Zod resolver for validation.
TanStack Query
Handles server-state caching, refetching, and loading/error states so you stop hand-rolling useEffect data fetching.
Zod
TypeScript-first schema validation with automatic type inference. The default pick for validating API inputs, env vars, and form data without writing types twice.
Zustand
A tiny global store for React with no provider wrapping and almost no boilerplate. Reach for it before Redux.