将数组中的重复对象合并并对值进行求和

Question

我有一个对象数组

    [
      {
        "team": "team-a",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-b",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-a",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-b",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-unassigned",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      }
    ]

我正在寻找一种将对象与重复的team键合并的方法，然后将结果对象中的每个值和起来。最终结果将如下所示：

[
  {
    "team": "team-a",
    "results": {
      "passed": 2,
      "failed": 2,
      "flaky": 2,
      "skipped": 2,
      "timedOut": 2
    }
  },
  {
    "team": "team-b",
    "results": {
      "passed": 2,
      "failed": 2,
      "flaky": 2,
      "skipped": 2,
      "timedOut": 2
    }
  },
  {
    "team": "team-unassigned",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  }
]

我试过减少，但就是无法找到解决办法。有人能给我指点吗？

Answer 1

请记住它修改了source数组。

​

const source = [{
    "team": "team-a",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  },
  {
    "team": "team-b",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  },
  {
    "team": "team-a",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  },
  {
    "team": "team-b",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  },
  {
    "team": "team-unassigned",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  }
]
const additional = [{
    "team": "team-a",
    "results": {
      "passed": 2,
      "failed": 2,
      "flaky": 2,
      "skipped": 2,
      "timedOut": 2
    }
  },
  {
    "team": "team-b",
    "results": {
      "passed": 2,
      "failed": 2,
      "flaky": 2,
      "skipped": 2,
      "timedOut": 2
    }
  },
  {
    "team": "team-unassigned",
    "results": {
      "passed": 1,
      "failed": 1,
      "flaky": 1,
      "skipped": 1,
      "timedOut": 1
    }
  }
]

source.forEach(({
  team,
  results
}) => {
  const {
    results: additionalResults
  } = additional.find(o => o.team === team)
  Object.entries(additionalResults).forEach(([key, value]) => {
    results[key] += value
  })
})

console.log(source)

​

Answer 2

是，

​

var arr=[{team:"team-a",results:{passed:1,failed:1,flaky:1,skipped:1,timedOut:1}},{team:"team-b",results:{passed:1,failed:1,flaky:1,skipped:1,timedOut:1}},{team:"team-a",results:{passed:1,failed:1,flaky:1,skipped:1,timedOut:1}},{team:"team-b",results:{passed:1,failed:1,flaky:1,skipped:1,timedOut:1}},{team:"team-unassigned",results:{passed:1,failed:1,flaky:1,skipped:1,timedOut:1}}]

var result = Object.values(arr.reduce(function(agg, item) {
  agg[item.team] = agg[item.team] || {
    team: item.team,
    results: {}
  };
  for (var key in item.results) {
    agg[item.team].results[key] = (agg[item.team].results[key] || 0) + item.results[key]
  }
  return agg;
}, {}))

console.log(result);

.as-console-wrapper {
  max-height: 100% !important;
}

​

Answer 3

let input = [
      {
        "team": "team-a",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-b",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-a",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-b",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      },
      {
        "team": "team-unassigned",
        "results": {
          "passed": 1,
          "failed": 1,
          "flaky": 1,
          "skipped": 1,
          "timedOut": 1
        }
      }
    ];

let resultObj = {};
input.forEach((entry) => {
    let resultTypes = Object.keys(entry.results);
    resultTypes.map((type) => {
        resultObj[entry.team] = resultObj[entry.team] || {
            "team" : entry.team,
            "results" : {}
        };
        resultObj[entry.team].results[type] =  (resultObj[entry.team].results[type] || 0) + entry.results[type];  
    });
});
console.log( Object.values(resultObj) );