Sohu Tech Products

Feb 26, 2025 · Frontend Development

Detecting and Optimizing Repeated Rendering in Large React Applications with React Scan

The article explains how repeated rendering slows large React applications, introduces the React Scan tool for automatically detecting unnecessary renders, details its installation via script tag or npm, describes its core APIs, and shows how to combine it with memoization, useCallback, useMemo, and other optimization techniques to improve performance.