如何使用NodeJS将2个Json对象组合为一个Json对象？

Question

我有2个JSON对象，定义如下：

 const totalData = [{ Hostname: "abc123", name: "CName-A", Status: "PASS", Heading: "Not Applicable" },
            { Hostname: "abc123", name: "CName-B", Status: "FAIL", Heading: "Not Applicable" },
            { Hostname: "abc235", name: "CName-C", Status: "FAIL", Heading: "Not Applicable" },
            { Hostname: "abc235", name: "CName-D", Status: "FAIL", Heading: "Not Applicable" }];

const otherTotalData = [{ Hostname: "abc123", name: "QName-A", Status: "PASS", Heading: "HeadingQA" },
            { Hostname: "abc123", name: "QName-B", Status: "FAIL", Heading: "HeadingQB" },
            { Hostname: "abc235", name: "QName-C", Status: "FAIL", Heading: "Not Applicable" },
            { Hostname: "abc235", name: "QName-D", Status: "FAIL", Heading: "Not Applicable" }];

我有一个使用array reduce方法的函数：

function createArray(totalData) {
const keyValues = ["Status", "Heading"],
    result = Object.values(totalData.reduce((res, { Hostname, name, ...o }) => {
        res[Hostname] = res[Hostname] || { Hostname };
        keyValues.forEach(k => res[Hostname][name + k] = o[k]);
        return res;
    }, {}));
}

现在，我正在调用两个函数：

const Res1 = createArray(totalData);

const Res2 = createArray(otherTotalData);

这里Res1具有输出：

[
    {
    "Hostname": "abc123",
    "CName-AStatus": "PASS",
    "CName-BStatus": "FAIL"
    },
    {
    "Hostname": "abc235",
    "CName-CStatus": "FAIL",
    "CName-DStatus": "FAIL"
    }
]

并且，Res2具有输出：

[
    {
    "Hostname": "abc123",
    "QName-AStatus": "PASS",
    "QName-BStatus": "FAIL"
    },
    {
    "Hostname": "abc235",
    "QName-CStatus": "FAIL",
    "QName-DStatus": "FAIL"
    }
]

我想结合Res1和Res2，使最终的Json对象如下所示：

[
    {
    "Hostname": "abc123",
    "CName-AStatus": "PASS",
    "CName-BStatus": "FAIL",
    "QName-AStatus": "PASS",
    "QName-BStatus": "FAIL"
    },
    {
    "Hostname": "abc235",
    "CName-CStatus": "FAIL",
    "CName-DStatus": "FAIL",
    "QName-CStatus": "FAIL",
    "QName-DStatus": "FAIL"
    }
]

如何合并Res1和Res2？

Answer 1

基本上，您可以搜索具有共享属性HostyName的另一个数组，并使用Object.assign将两个对象组合在一起。

const res1 = [{
    "Hostname": "abc123",
    "CName-AStatus": "PASS",
    "CName-BStatus": "FAIL"
  },
  {
    "Hostname": "abc235",
    "CName-CStatus": "FAIL",
    "CName-DStatus": "FAIL"
  }
];

const res2 = [{
    "Hostname": "abc123",
    "QName-AStatus": "PASS",
    "QName-BStatus": "FAIL"
  },
  {
    "Hostname": "abc235",
    "QName-CStatus": "FAIL",
    "QName-DStatus": "FAIL"
  }
];

const combined = res1.map(r => {
  const other = res2.find(q => q["HostName"] === r["HostName"]);
  return Object.assign({}, r, other);
});

console.log(combined);