리액트 컴포넌트 성능

무엇을 하나요

React Component Performance Overview Identify render hotspots, isolate expensive updates, and apply targeted optimizations without changing UI behavior. When to Use When the user asks to profile or improve a slow React component. When you need to reduce re renders, list lag, or expensive render work in React UI. Workflow 1. Reproduce or describe the slowdown. 2. Identify what triggers re renders (state updates, props churn, effects). 3. Isolate fast changing state from heavy subtrees. 4. Stabilize props and handlers; memoize where it pays off. 5. Reduce expensive work (computation, DOM size, list length). 6. Validate : open React DevTools Profiler → record the interaction → inspect the Flame…