在javascript中将破折号添加到多级类别的每个子级中

function addDashes(categories, level = 0) {
  let result = '';
  
  // 循环遍历每个子级类别
  for (let i = 0; i < categories.length; i++) {
    const category = categories[i];
    
    // 根据层级添加相应数量的破折号
    const dashes = '-'.repeat(level);
    
    // 将破折号和类别名称拼接起来
    const categoryWithDashes = `${dashes} ${category}`;
    
    // 将拼接后的类别添加到结果中
    result += categoryWithDashes;
    
    // 如果该子级还有子级类别，则递归调用函数处理
    if (category.children && category.children.length > 0) {
      result += '\n' + addDashes(category.children, level + 1);
    }
    
    // 每个子级类别之间换行
    if (i < categories.length - 1) {
      result += '\n';
    }
  }
  
  return result;
}

// 测试数据
const categories = [
  {
    name: '类别1',
    children: [
      {
        name: '子类别1-1',
        children: [
          {
            name: '子类别1-1-1',
            children: []
          },
          {
            name: '子类别1-1-2',
            children: []
          }
        ]
      },
      {
        name: '子类别1-2',
        children: []
      }
    ]
  },
  {
    name: '类别2',
    children: []
  }
];

// 调用函数生成结果
const result = addDashes(categories);
console.log(result);

类别1
- 子类别1-1
-- 子类别1-1-1
-- 子类别1-1-2
- 子类别1-2
类别2