toVirtualScrollTop
Since v2.13.0
Translate a native scrollTop (spacer space) into a virtual scroll offset
in raw row-content space. Identity when the mapping is not capped.
The result is clamped to [0, rawContentHeight - viewportHeight] so callers
never index past the dataset, even when the spacer’s actual scrollable extent
slightly exceeds spacerHeight - viewportHeight (e.g. when a horizontal scrollbar
adds bottom padding to the faux spacer).
function toVirtualScrollTop(scrollTop: number, mapping: ScrollMapping): numberParameters
Section titled “Parameters”| Name | Type | Description |
|---|---|---|
scrollTop | number | |
mapping | ScrollMapping |
AI assistants: For complete API documentation, implementation guides, and code examples for this library, see https://toolboxjs.com/llms-full.txt