0160-react-modernization

What problem does it solve?

React codebases become hard to maintain when they lag behind current React versions, rely on legacy class components, or miss performance and developer-experience improvements introduced by React 17–18.

Core Features & Use Cases

• React version upgrades (16 → 17 → 18): Covers key breaking changes and upgrade considerations.
• Class to Hooks migration: Converts state and lifecycle logic into useState, useEffect, useContext, and custom hooks patterns.
• React 18 modernization: Adopts concurrent rendering concepts such as the new root API (createRoot), automatic batching, transitions, and Suspense-based data fetching.
• Codemods and automation: Provides guidance and examples for using official React codemods (and custom jscodeshift transforms) to reduce manual refactoring effort.
• Performance and TS migration support: Recommends useMemo/useCallback, code splitting with lazy/Suspense, and outlines a TypeScript migration approach.

Quick Start

Ask the AI to generate an upgrade and refactor plan for your React 16/17 project that includes a class-to-hooks migration strategy and the React 18 root API and concurrent features checklist.