react-19

The React Compiler automatically optimizes rendering in React 19, allowing you to skip manual memoization. It eliminates the need for useMemo and useCallback boilerplate by handling component optimizations during the build process.

No, React 19 follows a server components-first approach. You should start with server components and only opt into client components by adding the 'use client' directive where interactivity is required.

React 19 encourages using the use() hook and useActionState patterns for modern component development. These hooks simplify state management and asynchronous operations without manual memoization.

React 19 embraces ref-as-prop semantics, allowing you to pass ref directly as a standard prop without forwardRef. This simplifies component composition and reduces boilerplate code.

Named imports are recommended in React 19 to ensure proper tree-shaking and compatibility with the React Compiler. This practice supports cleaner code and predictable rendering behavior.

While technically possible, using manual memoization defeats the purpose of the React Compiler. The compiler automatically handles optimizations, making useMemo and useCallback unnecessary in most React 19 components.