根据属性将一个对象拆分为多个对象

// 原始对象
const user = {
  id: 1,
  name: 'Alice',
  role: 'admin',
  email: 'alice@example.com',
  permissions: ['read', 'write', 'delete']
};

// 拆分函数
function splitUserByRole(user) {
  const { role, ...commonProps } = user;

  switch (role) {
    case 'admin':
      return {
        ...commonProps,
        adminPermissions: user.permissions
      };
    case 'user':
      return {
        ...commonProps,
        userPermissions: ['read']
      };
    default:
      return commonProps;
  }
}

// 使用示例
const adminUser = splitUserByRole(user);
console.log(adminUser);
// 输出: { id: 1, name: 'Alice', email: 'alice@example.com', adminPermissions: ['read', 'write', 'delete'] }