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Tommaso CasaburiandGitHub
a92b185a66
* chore(ai-workflow): track repo-managed review tooling * fix(ai-workflow): remove repo-specific path assumptions Make shared workflow hooks and APK testing guidance resolve paths from the repo and contributor environment so the tooling works for all contributors, not just one machine.
27 lines
564 B
Markdown
27 lines
564 B
Markdown
---
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title: Use Activity Component for Show/Hide
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impact: MEDIUM
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impactDescription: preserves state/DOM
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tags: rendering, activity, visibility, state-preservation
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---
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## Use Activity Component for Show/Hide
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Use React's `<Activity>` to preserve state/DOM for expensive components that frequently toggle visibility.
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**Usage:**
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```tsx
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import { Activity } from 'react'
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function Dropdown({ isOpen }: Props) {
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return (
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<Activity mode={isOpen ? 'visible' : 'hidden'}>
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<ExpensiveMenu />
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</Activity>
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)
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}
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```
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Avoids expensive re-renders and state loss.
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