Function getMountedItemTopForClamp

src/hooks/useVirtualScroll.ts:934–938

(index: number)

  // offsets here, it can race ahead of what is actually mounted and expose a
  // spacer flash. Cold-start/load/resize-settling still keep clamp disabled.
  const getMountedItemTopForClamp = (index: number): number | undefined => {
    const yoga = itemRefs.current.get(itemKeys[index]!)?.yogaNode
    if (!yoga || yoga.getComputedWidth() === 0) return undefined
    return yoga.getComputedTop()
  }
  const getMountedItemBottomForClamp = (index: number): number | undefined => {
    const yoga = itemRefs.current.get(itemKeys[index]!)?.yogaNode
    if (!yoga || yoga.getComputedWidth() === 0) return undefined