如何在javascript中对嵌套的数据进行id过滤和分组？

function filterAndGroupData(data, filterId) {
  const groupedData = {};

  function filterAndGroup(obj) {
    if (obj.id === filterId) {
      const groupId = obj.group;
      if (!groupedData.hasOwnProperty(groupId)) {
        groupedData[groupId] = [];
      }
      groupedData[groupId].push(obj);
    }

    if (obj.children && obj.children.length > 0) {
      obj.children.forEach(child => {
        filterAndGroup(child);
      });
    }
  }

  data.forEach(obj => {
    filterAndGroup(obj);
  });

  return groupedData;
}

// 使用示例
const data = [
  {
    id: 1,
    group: 'A',
    children: [
      {
        id: 2,
        group: 'A',
        children: []
      },
      {
        id: 3,
        group: 'B',
        children: []
      }
    ]
  },
  {
    id: 4,
    group: 'B',
    children: [
      {
        id: 5,
        group: 'A',
        children: []
      },
      {
        id: 6,
        group: 'B',
        children: []
      }
    ]
  }
];

const filteredAndGroupedData = filterAndGroupData(data, 2);
console.log(filteredAndGroupedData);