Function cloneNeighbors

javascript/0133-clone-graph.js:64–78

(node, seen, queue)

};

const cloneNeighbors = (node, seen, queue) => {
    for (const neighbor of node.neighbors) {
        if (!seen.has(neighbor)) {
            seen.set(neighbor, new Node(neighbor.val)); /* Space O(N) */
            queue.enqueue(neighbor); /* Space O(W) */
        }

        const [parentClone, neighborClone] = [
            seen.get(node),
            seen.get(neighbor),
        ];

        parentClone.neighbors.push(neighborClone); /* Space O(V + E) */
    }
};