Javascript 在js中将ID从一个数组映射到另一个数组

我试图根据ewr\u fr\u id将所有VIN从VIN数组映射到RAWSresponse数组

下面是我的代码：

const rawResponse=[ { ewr_fr_id: '303',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null },
  { ewr_fr_id: '303',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null },
  { ewr_fr_id: '302',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null },
  { ewr_fr_id: '302',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null } ];

const fieldReportIds=[ '303', '303', '302', '302' ];

const vins=[ { vin: '2FMPK3J84FBB73425', ewr_fr_id: 303 },
  { vin: 'USELESS', ewr_fr_id: 302 },
  { vin: 'USELESS2', ewr_fr_id: 302 },
  { vin: 'VIN5801', ewr_fr_id: 303 } ];

这就是我想要尝试的：

  for (const row in rawResponse) {
    getVins = await db.select(context.dbClient, q.getVinsQuery, [rawResponse[row].ewr_fr_id]);
    if (vins.length > 0 ) {
    rawResponse[row].vins =  _.map(rawResponse, vins, 'ewr_fr_id');
  }
  else 
  {
    rawResponse[row].vins = []; // if there is no vins then add vins: [] to the response
  }
}

我的预期结果是：

   rawResponse=[ { ewr_fr_id: '303',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null,
    vins:['VIN5801', '2FMPK3J84FBB73425']},
  { ewr_fr_id: '303',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06573.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null,
    vins:['VIN5801', '2FMPK3J84FBB73425']},
  { ewr_fr_id: '302',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null,
    vins:['USELESS', 'USELESS2']},
  { ewr_fr_id: '302',
    ewr_id: 102,
    yrq: '182',
    file_sequence: '1',
    fr_sequence: '102-182-1',
    manufacturer_name: 'Teryerter',
    report_category_cd: 'L',
    report_category_description: 'LightVehicle',
    date_qtr: '2018Q2',
    file_version: 1,
    file_type_cd: 'F',
    application_cd: 'S',
    application_description: 'SINGLE MODEL',
    file_name: 'SFNLIBERTY4X4-0404-10-06572.PDF',
    ifs_document_id: '000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF',
    model_or_platform: 'VOLTA',
    model_year: '2016',
    is_attachment: 'false',
    cmpt_01: '10',
    cmpt_descr_01: 'PowerTrain',
    cmpt_02: null,
    cmpt_descr_02: null,
    cmpt_03: null,
    cmpt_descr_03: null,
    cmpt_04: null,
    cmpt_descr_04: null,
    cmpt_05: null,
    cmpt_descr_05: null,
    vins:['USELESS', 'USELESS2'] } ];

---

基本上，我试图修改rawResponse数组以添加VIN数组，如果ewr\u fr\u id与VIN数组中的相同，如果不匹配，则添加一个空数组（VIN:[]）

您可以在此处使用

forEach

和

reduce

的组合：

rawResponse.forEach(response => {
  response.vins = vins.reduce((vinsArray, vin) => {
    if (+vin.ewr_fr_id === +response.ewr_fr_id) {
      vinsArray.push(vin.vin);
    }
    return vinsArray;
  }, []);
});

用于转换

rawResponse

中的每个项目。使用

ewr\u fr\u id

过滤

VIN

。并在过滤结果上使用

map（）

，仅返回

vin

const-rawResponse=[{ewr\U fr\U id:'303'，ewr\U id:102，yrq:'182'，文件顺序：'1'，fr\U顺序：'102-182-1'，制造商名称：'Teryerter'，报告类别\U cd:'L'，报告类别\U描述：'LightVehicle'，日期\u qtr:'2018Q2'，文件版本：1，文件类型\u cd:'F'，应用程序\u cd:'S'，应用程序\u描述：'SINGLE模型'，文件名：'SFNLIBERTY4X4-0404-10-06573.PDF'，ifs_文件id:'000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF'，model_或_平台：'VOLTA'，model_年份：'2016'，是_附件：'false'，cmpt_01:'10'，cmpt_描述01:'PowerTrain'，cmpt_02:null，cmpt_描述02:null，cmpt_03:null，cmpt_描述03:null，cmpt_描述03:null，cmpt_04:null，cmpt_描述05:null，{ewr\U fr\U id:'303'，ewr\U id:102，yrq:'182'，文件顺序：'1'，fr\U顺序：'102-182-1'，制造商名称：'Teryerter'，报告类别\U cd:'L'，报告类别\U描述：'LightVehicle'，日期\u qtr:'2018Q2'，文件版本：1，文件类型\u cd:'F'，应用程序\u cd:'S'，应用程序\u描述：'SINGLE模型'，文件名：'SFNLIBERTY4X4-0404-10-06573.PDF'，ifs_文件id:'000003L041001FP-SFNLIBERTY4X4-0404-10-06573.PDF'，model_或_平台：'VOLTA'，model_年份：'2016'，是_附件：'false'，cmpt_01:'10'，cmpt_描述01:'PowerTrain'，cmpt_02:null，cmpt_描述02:null，cmpt_03:null，cmpt_描述03:null，cmpt_描述03:null，cmpt_04:null，cmpt_描述05:null，{ewr\U fr\U id:'302'，ewr\U id:102，yrq:'182'，文件顺序：'1'，fr\U顺序：'102-182-1'，制造商名称：'Teryerter'，报告类别\U cd:'L'，报告类别\U描述：'LightVehicle'，日期\u qtr:'2018Q2'，文件版本：1，文件类型\u cd:'F'，应用程序\u cd:'S'，应用程序\u描述：'SINGLE模型'，文件名：'SFNLIBERTY4X4-0404-10-06572.PDF'，ifs_文件id:'000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF'，model_或_平台：'VOLTA'，model_年份：'2016'，是_附件：'false'，cmpt_01:'10'，cmpt_描述01:'PowerTrain'，cmpt_02:null，cmpt_描述02:null，cmpt_03:null，cmpt_描述03:null，cmpt_描述03:null，cmpt_04:null，cmpt_描述05:null，{ewr\U fr\U id:'302'，ewr\U id:102，yrq:'182'，文件顺序：'1'，fr\U顺序：'102-182-1'，制造商名称：'Teryerter'，报告类别\U cd:'L'，报告类别\U描述：'LightVehicle'，日期\u qtr:'2018Q2'，文件版本：1，文件类型\u cd:'F'，应用程序\u cd:'S'，应用程序\u描述：'SINGLE模型'，文件名：'SFNLIBERTY4X4-0404-10-06572.PDF'，ifs_文件id:'000003L041001FP-SFNLIBERTY4X4-0404-10-06572.PDF'，model_或_平台：'VOLTA'，model_年份：'2016'，是_附件：'false'，cmpt_01:'10'，cmpt_描述01:'PowerTrain'，cmpt_02:null，cmpt_描述02:null，cmpt_03:null，cmpt_描述03:null，cmpt_描述03:null，cmpt_04:null，CMU描述：null，CMU描述05:null]；
const vin=[{vin:'2FMPK3J84FBB73425'，ewr_fr_id:303}，{vin:'无用'，ewr_fr_id:302}，{vin:'USELESS2'，ewr_fr_id:302}，{vin:'VIN5801'，ewr_fr_id:303}]；
var result=rawResponse.map（项=>{
返回{…项，
“vin”：vin.filter（obj=>obj.ewr\u fr\u id==item.ewr\u fr\u id）.map（value=>value.vin）
};
});
console.log（result）；

您可以在rawRequest变量上使用map函数开始映射每个项，然后在VIN上运行for循环以查找要添加的VIN

const res = rawResponse.map(item => {
    let myVins = [];
    vins.forEach(vin => {
        if(vin.ewr_fr_id===Number(item.ewr_fr_id)){
            myVins.push(vin.vin);
        }
    });
    item.vins = myVins;
    return item;
})

---

如果你认为任何回答都回答了你的问题，那么你可以考虑把它标记为将来读者的利益。

const res = rawResponse.map(item => {
    let myVins = [];
    vins.forEach(vin => {
        if(vin.ewr_fr_id===Number(item.ewr_fr_id)){
            myVins.push(vin.vin);
        }
    });
    item.vins = myVins;
    return item;
})