React 18 如何提升應用程式效能：深入解析並行渲染與全新機制
Original: How React 18 Improves Application Performance
React 18 is a major milestone for the JavaScript library, with its core being the introduction of "Concurrency." This change is not a…
React 18 透過引入「並行渲染（Concurrent Rendering）」核心機制，徹底改變了 UI 更新的處理方式。文章探討了 Transitions API 如何避免 UI 凍結、自動批次處理如何減少重新渲染次數，以及伺服器端 Suspense 如何實現 HTML 串流與選擇性注水，顯著提升載入速度與互動響應性。這些改變也為現代前端框架（如 Next.js）奠定了高效能的基礎。
React 18 is a major milestone for the JavaScript library, with its core being the introduction of "Concurrency." This change is not a single feature but rather a behind-the-scenes architectural upgrade that allows React to simultaneously prepare multiple versions of the UI and render them without blocking the main thread.
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