facebook/lexical · error

Expected table cell to be inside of table row.

Error message

Expected table cell to be inside of table row.

What it means

$getTableRowNodeOrThrow walks up the node tree from a starting node searching for a TableRowNode. If no ancestor is a table row, the node is not actually inside a table's row structure, and the function throws instead of returning null (the $...OrThrow contract).

Source

Thrown at packages/lexical-table/src/LexicalTableUtils.ts:116

  const node = $findMatchingParent(startingNode, n => $isTableCellNode(n));

  if ($isTableCellNode(node)) {
    return node;
  }

  return null;
}

export function $getTableRowNodeFromTableCellNodeOrThrow(
  startingNode: LexicalNode,
): TableRowNode {
  const node = $findMatchingParent(startingNode, n => $isTableRowNode(n));

  if ($isTableRowNode(node)) {
    return node;
  }

  throw new Error('Expected table cell to be inside of table row.');
}

export function $getTableNodeFromLexicalNodeOrThrow(
  startingNode: LexicalNode,
): TableNode {
  const node = $findMatchingParent(startingNode, n => $isTableNode(n));

  if ($isTableNode(node)) {
    return node;
  }

  throw new Error('Expected table cell to be inside of table.');
}

export function $getTableRowIndexFromTableCellNode(
  tableCellNode: TableCellNode,
): number {
  const tableRowNode = $getTableRowNodeFromTableCellNodeOrThrow(tableCellNode);

View on GitHub (pinned to 76a22dcba9)

Solutions

  1. Verify the cell is attached to a live row before calling: check $isTableRowNode(cell.getParent()) or use the non-throwing $findMatchingParent scan yourself.
  2. Re-fetch the cell from the current editor state (via $getNodeByKey or selection) instead of using a stored reference.
  3. Wrap the call in try/catch if detachment is an expected condition and handle the fallback path.

Example fix

// before
const row = $getTableRowNodeFromTableCellNodeOrThrow(staleCell);
// after
const cell = $getNodeByKey(staleCell.getKey());
if ($isTableCellNode(cell) && $isTableRowNode(cell.getParent())) {
  const row = $getTableRowNodeFromTableCellNodeOrThrow(cell);
}
Defensive patterns

Strategy: type-guard

Validate before calling

if (!$isTableCellNode(cell) || !$isTableRowNode(cell.getParent())) return null;

Type guard

function isInTableRow(node: LexicalNode): node is TableCellNode {
  return $isTableCellNode(node) && $isTableRowNode(node.getParent());
}

Try / catch

try {
  return $getTableRowNodeFromTableCellNodeOrThrow(cell);
} catch {
  return null; // cell detached from any row
}

Prevention

When it happens

Trigger: Calling $getTableRowIndexFromTableCellNode, $getTableRowNodeFromTableCellNodeOrThrow, or related helpers with a node that is detached, a TableCellNode that was removed from its row, or a node of the wrong type entirely.

Common situations: Operating on a table cell captured before an update that removed the row; passing nodes from a cloned/stale EditorState; calling helpers outside the real table hierarchy (e.g. on cells built ad hoc and never appended to a row).

Related errors


AI-assisted analysis of facebook/lexical@76a22dcba9 (2026-08-31). Data as JSON: /api/errors/02598f32e876a0e5. Report an issue: GitHub.