chore: consolidate new foundation and archive v1 (#1495)

This commit is contained in:
2026-09-07 12:32:57 -05:00
3511 changed files with 727899 additions and 10 deletions
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---
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.