My-Weekly-ToDo-List/.opencode/skills/react-best-practices/rules/bundle-defer-third-party.md
mARTin d92a8c7210 feat: add task actions (notes/delete) and refine animation logic
- Added 'onDelete' and 'onNotes' support to TaskItem.
- Implemented hover actions (Delete and Notes icons) for tasks.
- Added Notes Modal for editing task markdown content.
- Simplified navigation animation to remove blank flash (single-phase slide-in).
- Fixed syntax error in updateTask function.
- Updated styles for modal and task actions.
2026-02-01 12:25:53 +01:00

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Markdown

---
title: Defer Non-Critical Third-Party Libraries
impact: MEDIUM
impactDescription: loads after hydration
tags: bundle, third-party, analytics, defer
---
## Defer Non-Critical Third-Party Libraries
Analytics, logging, and error tracking don't block user interaction. Load them after hydration.
**Incorrect (blocks initial bundle):**
```tsx
import { Analytics } from '@vercel/analytics/react'
export default function RootLayout({ children }) {
return (
<html>
<body>
{children}
<Analytics />
</body>
</html>
)
}
```
**Correct (loads after hydration):**
```tsx
import dynamic from 'next/dynamic'
const Analytics = dynamic(
() => import('@vercel/analytics/react').then(m => m.Analytics),
{ ssr: false }
)
export default function RootLayout({ children }) {
return (
<html>
<body>
{children}
<Analytics />
</body>
</html>
)
}
```