我有一个对象，用户应该只能选择他/她想要的属性。
下面是用户可以筛选的对象的示例;

const responseObject = {
  name: 'John Doe',
  age: 25,
  cars: [
     {
         name: "Test car",
         brand: "Test brand",
         accessories: [
             {
                 name: "Test accessory",
                 description: "Test description",
                 code: "1234"
             },
             {
                 name: "Test accessory",
                 description: "Test description",
                 code: "12345"
             }
        ]
     },
     {
         name: "Test car 2",
         brand: "Test brand 2",
         accessories: [
             {
                 name: "Test accessory 2",
                 description: "Test description 2",
                 code: "1234"
             },
             {
                 name: "Test accessory 2",
                 description: "Test description",
                 code: "12345"
             }
        ]
     }
    ]
};

下面是一个用户请求的示例，其中包含他/她希望包含在响应中的字段。它的工作原理类似于select（SELECT name, cars.name, cars.accessories FROM ....）

const includedFields = {
    fields: [
        "name",
        "cars.name",
        "cars.accessories."
    ]
};

这是预期的输出。代码应该只获取用户请求中包含的字段，忽略输入对象中的所有其他字段。此对象将来自API：

const changedResponse = {
  name: 'John Doe',
  cars: [
     {
         name: "Test car",
         accessories: [
             {
                 name: "Test accessory",
             },
             {
                 name: "Test accessory",
             }
        ]
     },
     {
         name: "Test car 2",
         accessories: [
             {
                 name: "Test accessory 2"
             },
             {
                 name: "Test accessory 2"
             }
        ]
     }
    ]
};

我创建这个函数就是为了解决这个问题，我循环遍历所有的字段，检查它们是否在数组中，如果不在，我会在输出中设置它们，如果在，我不知道该怎么做。

function filterResponseFields(fieldsFilter, inputObject) { 
 const response = {};
 for(let i = 0; i < fieldsFilter.length; i++) {
   let fieldPath = fieldsFilter[i];
   let fieldPathAttributes = filter.split(".");
   let fieldsInsideArrays = [];
   let containsFieldIsInsideArray = false;
   let currentAttributePath = '';
   
   for(let j = 0; j < fieldsFilter.length; j++) {
       
    currentAttributePath = currentAttributePath ? fieldPathAttributes[j] : currentAttributePath + "." + fieldPathAttributes[j];
    if (Array.isArray(inputObject[currentAttributePath])) {
        containsFieldIsInsideArray = true;
        fieldsInsideArrays.push({
           path: currentAttributePath,
           filterField: filter
        });
    }
   }
   
   if (!containsFieldIsInsideArray) {
       response[field] = inputObject[field];
   } else {
       // I DO NOT KNOW WHAT TO DO HERE
   }
}