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- 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.
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title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Use Transitions for Non-Urgent Updates | MEDIUM | maintains UI responsiveness | rerender, transitions, startTransition, performance |
Use Transitions for Non-Urgent Updates
Mark frequent, non-urgent state updates as transitions to maintain UI responsiveness.
Incorrect (blocks UI on every scroll):
function ScrollTracker() {
const [scrollY, setScrollY] = useState(0)
useEffect(() => {
const handler = () => setScrollY(window.scrollY)
window.addEventListener('scroll', handler, { passive: true })
return () => window.removeEventListener('scroll', handler)
}, [])
}
Correct (non-blocking updates):
import { startTransition } from 'react'
function ScrollTracker() {
const [scrollY, setScrollY] = useState(0)
useEffect(() => {
const handler = () => {
startTransition(() => setScrollY(window.scrollY))
}
window.addEventListener('scroll', handler, { passive: true })
return () => window.removeEventListener('scroll', handler)
}, [])
}