- 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.
728 B
728 B
| title | impact | impactDescription | tags |
|---|---|---|---|
| Subscribe to Derived State | MEDIUM | reduces re-render frequency | rerender, derived-state, media-query, optimization |
Subscribe to Derived State
Subscribe to derived boolean state instead of continuous values to reduce re-render frequency.
Incorrect (re-renders on every pixel change):
function Sidebar() {
const width = useWindowWidth() // updates continuously
const isMobile = width < 768
return <nav className={isMobile ? 'mobile' : 'desktop'} />
}
Correct (re-renders only when boolean changes):
function Sidebar() {
const isMobile = useMediaQuery('(max-width: 767px)')
return <nav className={isMobile ? 'mobile' : 'desktop'} />
}