使用json选择类别时，列出类别并显示子类别

{
  "categories": [
    {
      "id": 1,
      "name": "电子产品",
      "subcategories": [
        {
          "id": 11,
          "name": "智能手机",
          "subcategories": [
            {
              "id": 111,
              "name": "苹果手机"
            },
            {
              "id": 112,
              "name": "安卓手机"
            }
          ]
        },
        {
          "id": 12,
          "name": "笔记本电脑"
        }
      ]
    },
    {
      "id": 2,
      "name": "家居用品",
      "subcategories": [
        {
          "id": 21,
          "name": "家具"
        },
        {
          "id": 22,
          "name": "厨房用品"
        }
      ]
    }
  ]
}

const data = {
  "categories": [
    {
      "id": 1,
      "name": "电子产品",
      "subcategories": [
        {
          "id": 11,
          "name": "智能手机",
          "subcategories": [
            {
              "id": 111,
              "name": "苹果手机"
            },
            {
              "id": 112,
              "name": "安卓手机"
            }
          ]
        },
        {
          "id": 12,
          "name": "笔记本电脑"
        }
      ]
    },
    {
      "id": 2,
      "name": "家居用品",
      "subcategories": [
        {
          "id": 21,
          "name": "家具"
        },
        {
          "id": 22,
          "name": "厨房用品"
        }
      ]
    }
  ]
};

function displayCategories(categories, level = 0) {
  categories.forEach(category => {
    console.log(' '.repeat(level * 2) + category.name);
    if (category.subcategories && category.subcategories.length > 0) {
      displayCategories(category.subcategories, level + 1);
    }
  });
}

displayCategories(data.categories);

电子产品
  智能手机
    苹果手机
    安卓手机
  笔记本电脑
家居用品
  家具
  厨房用品