Method getChildren

src/graph/traversal.ts:720–732

* Get immediate children of a node * * @param nodeId - ID of the node * @returns Array of child nodes

(nodeId: string)

   * @returns Array of child nodes
   */
  getChildren(nodeId: string): Node[] {
    const containsEdges = this.queries.getOutgoingEdges(nodeId, ['contains']);
    if (containsEdges.length === 0) return [];

    // Batch-fetch (was N+1).
    const childNodes = this.queries.getNodesByIds(containsEdges.map((e) => e.target));
    const children: Node[] = [];
    for (const edge of containsEdges) {
      const childNode = childNodes.get(edge.target);
      if (childNode) children.push(childNode);
    }
    return children;
  }
}