()
| 40 | } |
| 41 | |
| 42 | function RowVirtualizerFixed() { |
| 43 | const parentRef = React.useRef(null) |
| 44 | |
| 45 | const rowVirtualizer = useVirtualizer({ |
| 46 | count: 10000, |
| 47 | getScrollElement: () => parentRef.current, |
| 48 | estimateSize: () => 35, |
| 49 | overscan: 5, |
| 50 | }) |
| 51 | |
| 52 | return ( |
| 53 | <> |
| 54 | <div |
| 55 | ref={parentRef} |
| 56 | className="List" |
| 57 | style={{ |
| 58 | height: `200px`, |
| 59 | width: `400px`, |
| 60 | overflow: 'auto', |
| 61 | }} |
| 62 | > |
| 63 | <div |
| 64 | style={{ |
| 65 | height: `${rowVirtualizer.getTotalSize()}px`, |
| 66 | width: '100%', |
| 67 | position: 'relative', |
| 68 | }} |
| 69 | > |
| 70 | {rowVirtualizer.getVirtualItems().map((virtualRow) => ( |
| 71 | <div |
| 72 | key={virtualRow.index} |
| 73 | className={virtualRow.index % 2 ? 'ListItemOdd' : 'ListItemEven'} |
| 74 | style={{ |
| 75 | position: 'absolute', |
| 76 | top: 0, |
| 77 | left: 0, |
| 78 | width: '100%', |
| 79 | height: `${virtualRow.size}px`, |
| 80 | transform: `translateY(${virtualRow.start}px)`, |
| 81 | }} |
| 82 | > |
| 83 | Row {virtualRow.index} |
| 84 | </div> |
| 85 | ))} |
| 86 | </div> |
| 87 | </div> |
| 88 | </> |
| 89 | ) |
| 90 | } |
| 91 | |
| 92 | function ColumnVirtualizerFixed() { |
| 93 | const parentRef = React.useRef(null) |
nothing calls this directly
no test coverage detected