我有一个对象数组，其中有一些重复的id，每个对象都有不同的firstName lastName和userId，现在我尝试做的是检查重复项，如果找到，创建一个trailers数组，并将其推送到第一个重复项，到目前为止一切顺利，我设法编写了一个函数，下面是我添加的代码，任何改进代码的建议都非常感谢

let data = [
    {
        "id": 1,
        "details": {
            "title": "x detail"
        },
        "userId": 146,
        "firstName": "me",
        "lastName": "testing"
    },
    {
        "id": 2,
        "details": {
            "title": "x detail"
        },
        "userId": 151,
        "firstName": "me",
        "lastName": "testing1"
    },
    {
        "id": 1,
        "details": {
            "title": "x detail"
        },
        "userId": 145,
        "firstName": "me",
        "lastName": "testing2"
    },
    {
        "id": 3,
        "details": {
            "title": "x detail"
        },
        "userId": 151,
        "firstName": "me",
        "lastName": "testing3"
    },
    {
        "id": 4,
        "details": {
            "title": "x detail"
        },
        "userId": 44,
        "firstName": "me",
        "lastName": "testing4"
    },
    {
        "id": 1,
        "details": {
            "title": "x detail"
        },
        "userId": 32,
        "firstName": "me",
        "lastName": "testing5"
    }
];

const dupes = []
const nonDupe = [];
    data.filter((o, index) => {
          if(dupes.find(i => i.id === o.id)) {
              o['trainers'] = [{
              firstName:o.firstName,
              lastName:o.lastName,
              id:o.userId
            }]
            delete o.firstName;
            delete o.lastName;
            delete o.userId;
            nonDupe.push(o)
            return true
          }
            o['trainers'] = [{
              firstName:o.firstName,
              lastName:o.lastName,
              id:o.userId
            }]
            delete o.firstName;
            delete o.lastName;
            delete o.userId;
            dupes.push(o)
          return false;
        })

        let sortWithTrainers = [];
        dupes.map((val1, id1) =>{
          nonDupe.map((val2, id2) =>{
              if(val1.id == val2.id){
                let merged = [...val1.trainers, ...val2.trainers]
                val1.trainers = merged
                sortWithTrainers.push(val1)
            }else{
              sortWithTrainers.push(val1)
            }
          })
        })

        let nonDupeFinal = [];
        sortWithTrainers.map((val) =>{
          if(nonDupeFinal.find(i => i.id === val.id)) {
            return true
          }
          nonDupeFinal.push(val)
          return false;
        })
        console.log(nonDupeFinal)