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fec-list-virtualization

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用于优化或审查大列表、虚拟滚动、windowing、react-window、TanStack Virtual、可变高度行、动态测量、无限滚动、网格虚拟化或滚动性能；中文触发词包括 虚拟列表、大列表优化、滚动性能。

localized/zh-CN/skills/fec-list-virtualization/SKILL.md

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Nov 8, 2026
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# 列表虚拟化优化

## 用途

通过窗口化只渲染可视区域，解决大列表 DOM 过多和滚动卡顿。

## 流程

1. 先确认列表规模和瓶颈：500+ 项、滚动掉帧、DOM 节点过多或内存飙升才引入虚拟化。
2. 先遵循项目现有框架、依赖和设计系统约束，再按场景选库：React 可考虑 `react-window` 或 TanStack Virtual；Vue/Solid/Svelte、动态测量、网格或跨框架场景优先考虑 TanStack Virtual；遗留 `react-virtualized` 只维护不新增。
3. 明确 item size、overscan、容器高度、key、滚动容器和 resize 行为。
4. 无限滚动时分离数据分页和 DOM 虚拟化；数据获取可联用数据获取 workflow。
5. 验证 DOM 节点数、滚动 FPS、键盘/屏幕阅读器体验和 Ctrl+F/SEO 限制。