通过对象数组中的ID字段将字段值收集到数组中

我无法修改 JSON 文件。尝试使用我所有关于循环（map、filter）和条件（if、else）JavaScript 的知识。但什么也没有出来。请告诉我如何从此文件制作这样的文件

[{
    "model": "2002R \"Protection Pack - Mirage Grey",
    "img": "2002r-protection-pack-mirage-grey.jpg"
  },
  {
    "model": "2002R \"Protection Pack - Mirage Grey",
    "img": "2002r-protection-pack-mirage-grey-2.jpg"
  },
  {
    "model": "550 \"White Black",
    "img": "BB550HA1-2.jpg"
  },
  {
    "model": "550 \"White Black",
    "img": "BB550HA1-3.jpg"
  },]

应该是这样的

   [{
    "model": "2002R \"Protection Pack - Mirage Grey",
    "img": ["2002r-protection-pack-mirage-grey.jpg", "2002r-protection-pack-mirage-grey-2.jpg"]
  },
  {
    "model": "550 \"White Black",
    "img": ["BB550HA1-2.jpg","BB550HA1-3.jpg"]
  },
]

我试过这个。但没有正确的结果。

let modelsArray = [];
let prevModel = '';
let currentModel = '';
let pictureArray = [];
let counterModel = 0;

fs.readFile(path, 'utf-8', (err, data) => {
  if (err) console.log(err.message);

  try {
    const dataArr = JSON.parse(data);

    const newArr = dataArr.map((item, ind) => {
      currentModel = item.model;

      pictureArray.push(item['img']);

      if (modelsArray.length == 0) {
        modelsArray[counterModel] = { model: item.model };
        prevModel = currentModel;
      }

      if (prevModel !== item.model) {
        counterModel++;
        modelsArray[counterModel] = { model: item.model };
      }

      prevModel = currentModel;


      
    });

请给我建议

Array::reduce是从数组收集数据的一个不错的选择。这里我们有一个结果数组的累加器和一个映射，我们可以在其中轻松找到已添加的模型以向其中添加图像：

r.map.get(model)?.img.push(img)

如果找不到模型，请将其添加到数组和地图中：

r.map.set(model, r.arr[r.arr.length] = {model, img: [img]});

const models = [{
    "model": "2002R \"Protection Pack - Mirage Grey",
    "img": "2002r-protection-pack-mirage-grey.jpg",
    "brand": "test brand"
  },
  {
    "model": "2002R \"Protection Pack - Mirage Grey",
    "img": "2002r-protection-pack-mirage-grey-2.jpg"
  },
  {
    "model": "550 \"White Black",
    "img": "BB550HA1-2.jpg"
  },
  {
    "model": "550 \"White Black",
    "img": "BB550HA1-3.jpg"
  },];
  
const images = models.reduce((r, {model, img, ...props}) => {
  r.map.get(model)?.img.push(img) ?? 
  r.map.set(model, r.arr[r.arr.length] = {model, img: [img], ...props});
  return r;
}, {arr: [], map: new Map}).arr;

console.log(images);