考虑下图：

class Node {
  constructor(value) {
    this.value = value;
    this.adjacents = new Set();
  }

  addAdjacent(node) {
    this.adjacents.add(node);
  }
}

class Graph {
  constructor(directed = false) {
    this.nodes = new Map();
    this.directed = directed;
  }

  addVertex(value) {
    const node = this.nodes.has(value);
    if (node) {
      return this.nodes.get(value);
    }

    const vertex = new Node(value);
    this.nodes.set(value, vertex);
    return vertex;
  }

  addEdge(src, dest) {
    let srcNode = this.nodes.get(src);
    if (!srcNode) {
      srcNode = this.addVertex(src);
    }

    let destNode = this.nodes.get(dest);
    if (!destNode) {
      destNode = this.addVertex(dest);
    }

    srcNode.addAdjacent(destNode);
    if (this.directed === false) {
      destNode.addAdjacent(srcNode);
    }
  }
}

const g1 = new Graph();
g1.addVertex("a");
g1.addVertex("b");
g1.addEdge("a", "c");

当I console.log时，图形对象g1。我得到以下输出：

Graph {
  nodes: Map(3) {
    'a' => Node { value: 'a', adjacents: [Set] },
    'b' => Node { value: 'b', adjacents: Set(0) {} },
    'c' => Node { value: 'c', adjacents: [Set] }
  },
  directed: false
}

如输出所示，我没有得到关于顶点边的信息。
我尝试将replacer传递给JSON.stringify，但它导致StackOverFlow错误。

console.log(
  JSON.stringify(
    Object.fromEntries(g1.nodes),
    (_key, value) =>
      value.adjacents instanceof Set ? [...value.adjacents] : value,
    2
  )
);

错误：

JSON.stringify(
       ^

RangeError: Maximum call stack size exceeded
    at JSON.stringify (<anonymous>)

如何以更友好的格式打印图表？