HouYunFei
fb79a15508
- 添加 sections 定义文件，包含性能优化各领域分类 - 添加规则模板文件，规范文档结构和标签定义 - 添加异步操作优化规则，包括防止瀑布流、并行化、延迟等待等 - 添加包大小优化规则，包括避免桶式导入、动态导入、预加载等 - 添加服务端性能优化规则，包括 API 路
564 B
564 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Use Activity Component for Show/Hide | MEDIUM | preserves state/DOM | rendering, activity, visibility, state-preservation |
Use Activity Component for Show/Hide
Use React's <Activity> to preserve state/DOM for expensive components that frequently toggle visibility.
Usage:
import { Activity } from 'react'
function Dropdown({ isOpen }: Props) {
return (
<Activity mode={isOpen ? 'visible' : 'hidden'}>
<ExpensiveMenu />
</Activity>
)
}
Avoids expensive re-renders and state loss.