https://index.zshipu.com/ai002/tags/useCallback/ Recent content in UseCallback on 知识铺的博客 Hugo -- gohugo.io zh-CN Sat, 05 Sep 2026 00:00:00 +0000 https://index.zshipu.com/ai002/post/20260905/React-Compiler-1.0-%E5%8F%91%E5%B8%83%E5%93%AA%E4%BA%9B-useMemo-%E5%92%8C-useCallback-%E5%8F%AF%E4%BB%A5%E7%9B%B4%E6%8E%A5%E5%88%A0%E9%99%A4/ Sat, 05 Sep 2026 00:00:00 +0000 https://index.zshipu.com/ai002/post/20260905/React-Compiler-1.0-%E5%8F%91%E5%B8%83%E5%93%AA%E4%BA%9B-useMemo-%E5%92%8C-useCallback-%E5%8F%AF%E4%BB%A5%E7%9B%B4%E6%8E%A5%E5%88%A0%E9%99%A4/ 2025年10月React Compiler 1.0稳定前，React代码库里随处可见memo()、useCallback和useMemo的防御性包裹。这些代码大多不是因为实际测量过性能问题，而是为了预防猜测可能发生的重渲染。编译器发布后，这种猜测已不再必要。 React Compiler 1.0 的核心变化在于，它把开发者手动进