Function isDisconnectedNode

packages/core/src/hydration/utils.ts:508–515

(hydrationInfo: DehydratedView, index: number)

 * such nodes and instead, use a regular "creation mode".
 */
export function isDisconnectedNode(hydrationInfo: DehydratedView, index: number): boolean {
  // Check if we are processing disconnected info for the first time.
  if (typeof hydrationInfo.disconnectedNodes === 'undefined') {
    const nodeIds = hydrationInfo.data[DISCONNECTED_NODES];
    hydrationInfo.disconnectedNodes = nodeIds ? new Set(nodeIds) : null;
  }
  return !!initDisconnectedNodes(hydrationInfo)?.has(index);
}

/**
 * Checks whether a node can be hydrated.