ea85a053c5
All checks were successful
Deploy / deploy (push) Successful in 7m30s
- Added new skills: find-skills, frontend-ui-engineering, and vercel-react-best-practices to skills-lock.json. - Updated use-pixel-heat.ts to import both animate and AnimationPlaybackControls from motion for improved animation handling.
27 lines
564 B
Markdown
27 lines
564 B
Markdown
---
|
|
title: Use Activity Component for Show/Hide
|
|
impact: MEDIUM
|
|
impactDescription: preserves state/DOM
|
|
tags: 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:**
|
|
|
|
```tsx
|
|
import { Activity } from 'react'
|
|
|
|
function Dropdown({ isOpen }: Props) {
|
|
return (
|
|
<Activity mode={isOpen ? 'visible' : 'hidden'}>
|
|
<ExpensiveMenu />
|
|
</Activity>
|
|
)
|
|
}
|
|
```
|
|
|
|
Avoids expensive re-renders and state loss.
|