Question

所以我有一个包含板球比赛信息的数组。我想显示一个团队在一场比赛中得分的totalRun，还显示该totalRun与其他团队的对抗情况。

数组包含

module.exports.matchScore = [
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 1,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 404,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 2,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 280,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 3,
        "isDeclare": 1,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 81,
        "totalWicket": 4
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 4,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 15,
        "totalWicket": 0
    },


let matchScore = require('./array');
let matchScoreData = matchScore.matchScore;


let forMatchDetail = matchScore.filter(function (matchScoreDetail) {
    return (matchScoreDetail.fk_matchID === matchScoreDetail.fk_matchID) && (matchScoreDetail.fk_teamID === matchScoreDetail.fk_teamID);
  });

  console.log(forMatchDetail);



let againstMatchDetail = matchScore.filter(function (matchScore) {
    return (matchScore.fk_matchID === matchScoreData.fk_matchID) && (matchScore.fk_teamID != matchScoreData.fk_teamID);
  });

  console.log(againstMatchDetail);

所以我想从同一比赛（相同比赛ID）的不同局对象中添加一个团队totalRun

因此，19871987团队的总得分为485 404 + 81，而198752团队的得分为295 280 + 15

因此，团队198708的得分为485，得分为295，小组198752的得分为295，反对为485

我得到了你们给出的答案，但是我该如何将我的答案换成车队的totalRun，以便与奔跑socred相对应，例如

“ 198708”：295， “ 198752”：485，

我在数组中也有一些类似的匹配，如示例所示。所以我需要在matchID中显示它。

Answer 1

您需要遍历数组并找到正确的团队ID，然后将团队ID插入具有分数的新对象中。如果对象中已经有团队ID，则添加分数。以下是为您准备的虚拟逻辑。

var match_results = [
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 1,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 404,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 2,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 280,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 3,
        "isDeclare": 1,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 81,
        "totalWicket": 4
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 4,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 15,
        "totalWicket": 0
    }];
    
 var desired_result = {};
 
 for (let i = 0; i< match_results.length; i++){
      // console.log(match_results[i]);
      if(desired_result[match_results[i]["fk_teamID"]] == undefined){
            desired_result[match_results[i]["fk_teamID"]] = match_results[i]["totalRun"];
      }else{
      desired_result[match_results[i]["fk_teamID"]] += match_results[i]["totalRun"];
      }
 }
 
 console.log(desired_result);

使用reduce方法

var match_results = [
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 1,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 404,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 2,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 280,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 3,
        "isDeclare": 1,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 81,
        "totalWicket": 4
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 4,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 15,
        "totalWicket": 0
    }];
    
// using reduce function. 
 var desired_result_2 = match_results.reduce(function(accu, value, currentIndex, array) {
        if(accu[value["fk_teamID"]] == undefined){
            accu[value["fk_teamID"]] = value["totalRun"];
        }else{
            accu[value["fk_teamID"]] += value["totalRun"];
        }
        return accu;
 },{});
 

 
 console.log(desired_result_2);

Answer 2

请尝试使用此代码并进行所需的更改

  var matchScore = [
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 1,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 404,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 2,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 280,
        "totalWicket": 10
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198708,
        "inning": 3,
        "isDeclare": 1,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 81,
        "totalWicket": 4
    },
    {
        "fk_matchID": 234017,
        "fk_teamID": 198752,
        "inning": 4,
        "isDeclare": 0,
        "isForfeited": 0,
        "isFollowOn": 0,
        "isAllOut": 0,
        "totalRun": 15,
        "totalWicket": 0
    }
  ];
  
  var matchScoreCopy = matchScore;
  var jsonObj = [];
  var obj;
  var getJsonObject = function (matchScoreCopy) {
    if (matchScoreCopy.length === 0) {
      return -1;
    }
    else {
      var elementId = matchScoreCopy[0].fk_teamID;
      var totrun = 0;
      for(var i = 0; i < matchScoreCopy.length; i++) {
        var obj = matchScoreCopy[i];
        if (obj.fk_teamID === elementId) {
            totrun += obj.totalRun;
            matchScoreCopy.splice(i, 1);
            if (matchScoreCopy.length === 1) {
              i--;
            }
        }
      }
      obj = {
        'fk_teamID': elementId,
        'totalRun': totrun
      }
      jsonObj.push(obj);
      getJsonObject(matchScoreCopy);
    }
    
  }

  getJsonObject(matchScoreCopy);
  console.log(jsonObj);

在具有相同值的json中查找键的总和

2 个答案: