@tanstack/react-virtual import

estimateSize value

overscan value

Absolute positioning strategy

Total size container

getScrollElement ref

React.memo on item component

useMemo for derived data

useCallback for handler props

virtualRow.index used as key

Fixed container height

ArrowDown handler

ArrowUp handler

Enter key handler

Escape key handler

role=combobox

aria-expanded attribute

aria-haspopup=listbox

Modal role=dialog

Modal aria-modal

Modal tabIndex=-1

Modal focus save

Modal focus restore

Modal Escape close

Typed Action union

useReducer + Context

Custom hook error throw

Debounce via setTimeout

AnimatePresence usage

motion component animation

List exit animation y direction

transition duration

ErrorBoundary class component

ErrorBoundary reset button

componentDidCatch logging

ErrorBoundary wraps content

Controlled form validation