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Frontend & Design

React Compiler

The end of manual useMemo — the compiler optimizes re-renders automatically.

Claude Code Cursor Codex Windsurf

Overview

React Compiler analyzes components at build time and inserts optimal memoization automatically — making most manual useMemo, useCallback and React.memo unnecessary. Agents enable it, safely strip legacy manual memoization, and verify with the official ESLint plugin.

The result: cleaner code and fewer re-renders without ever thinking about dependency arrays again — one of modern React's biggest shifts.

Who Is This For?

  • Enabling the compiler in React/Next projects
  • Cleaning up legacy useMemo/useCallback
  • Diagnosing excessive re-render issues
  • Enforcing the Rules of React via the ESLint plugin

Installation

Setup for Claude Code
npm install babel-plugin-react-compiler

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