neuro-react

Define an async function with the 'use server' directive that accepts formData, validate input with Zod, then pass it to a form's action prop. Use useActionState in the client component to track pending state and errors.

No, forwardRef is deprecated in React 19. Ref is now passed as a regular prop, so function components can accept ref directly in their props and forward it to the underlying DOM element.

Use Server Components by default for data fetching and static content. Add 'use client' only when you need hooks like useState, event handlers, or browser APIs such as localStorage.

Use Context for stable, rarely changing values like theme or auth. Use Zustand with selectors for shared client state that changes frequently, since Context re-renders all consumers on any value change.

Mostly yes. The React Compiler auto-memoizes JSX, objects, and callbacks. You still need manual memoization for non-React library callbacks, uncompiled effect dependencies, and genuinely expensive computations.

Race conditions occur when a component re-renders before a previous fetch resolves. Fix this by creating an AbortController inside the effect and aborting it in the cleanup function so stale responses are ignored.