属性未显示在 json 中，重组 json 对象答案

【问题标题】：Attributes not showing up in json, restructure json objects属性未显示在 json 中，重组 json 对象
【发布时间】：2019-12-01 20:08:13
【问题描述】：

原始json数据：

{
  "UniversalOne": "",
  "CommonOne": "",
  "Implementations": [
    {
      "BirthDate": "",
      "UniqueTraits": "",
      "Male": {
        "Gender": "Male",
        "PlaceOfBirth": "",
        "Weight": "",
        "Height": "",
        "EyeColor": ""
      },
      "Female": {
        "Gender": "Female",
        "PlaceOfBirth": "",
        "Weight": "",
        "Height": "",
        "EyeColor": ""
      },
      "Country": [
        {
          "Orientation": "Male",
          "Name": "ABCD",
          "County": "East"
        },
        {
          "Orientation": "Male",
          "Name": "ABCD",
          "County": "West"
        },
        {
          "Orientation": "Female",
          "Name": "EFGH",
          "County": "East"
        },
        {
          "Orientation": "Female",
          "Name": "EFGH",
          "County": "West"
        },
        {
          "Orientation": "Female",
          "Name": "IJKL"
        }
      ],
      "State": [
        {
          "Address": "XYZ Street",
          "ZipCode": "US"
        }
      ],
      "Boy": [
        {
          "AgeGroup": "A",
          "Id": 1,
          "MaternalName": "",
          "PaternalName": ""
        },
        {
          "AgeGroup": "B",
          "Id": 2,
          "MaternalName": "",
          "PaternalName": ""
        },
        {
          "AgeGroup": "C",
          "Id": 3,
          "MaternalName": "",
          "PaternalName": ""
        }
      ]
    }
  ],
  "PersonalityTraits": [
    {
      "Type": "Positive"
    },
    {
      "Type": "Negative"
    }
  ],
  "UniversalTwo": "",
  "CommonTwo": "",
  "EatingHabits": {
    "Type": "Excessive"
  },
  "ReadingHabits": {
    "Type": "Fast"
  },
  "FitnessHabits": {},
  "UniversalThree": "",
  "CommonThree": ""
}

预期的 json 响应：

  {
  "UniversalOne": "",
  "CommonOne": "",
  "Implementations": [
    {
      "BirthDate": "",
      "UniqueTraits": "",
      "Male": {
        "Gender": "Male",
        "PlaceOfBirth": "",
        "Weight": "",
        "Height": "",
        "EyeColor": "",
        "Country": [
          {
            "Orientation": "Male",
            "Name": "ABCD"
          }
        ],
        "EastCounty": {
          "Orientation": "Male",
          "Name": "ABCD",
          "County": "East"
        },
        "State": [
          {
            "Address": "XYZ Street",
            "ZipCode": "US"
          }
        ]
      },
      "Female": {
        "Gender": "Female",
        "PlaceOfBirth": "",
        "Weight": "",
        "Height": "",
        "EyeColor": "",
        "Country": [
          {
            "Orientation": "Female",
            "Name": "EFGH"
          },
          {
            "Orientation": "Female",
            "Name": "IJKL"
          }
        ],
        "EastCounty": {
          "Orientation": "Female",
          "Name": "EFGH",
          "County": "East"
        },
        "State": [
          {
            "Address": "XYZ Street",
            "ZipCode": "US"
          }
        ]
      },
      "Girl": [
        {
          "AgeGroup": "A",
          "identification": [
            {
              "Number": 1,
              "MaternalName": "",
              "PaternalName": ""
            }
          ]
        },
        {
          "AgeGroup": "B",
          "identification": [
            {
              "Number": 1,
              "MaternalName": "",
              "PaternalName": ""
            }
          ]
        },
        {
          "AgeGroup": "C",
          "identification": [
            {
              "Number": 1,
              "MaternalName": "",
              "PaternalName": ""
            }
          ]
        }
      ]
    }
  ],
  "PersonalityTraits": [
    {
      "Type": "Positive"
    },
    {
      "Type": "Negative"
    }
  ],
  "UniversalTwo": "",
  "CommonTwo": "",
  "EatingHabits": {
    "Type": "Excessive"
  },
  "ReadingHabits": {
    "Type": "Fast"
  },
  "FitnessHabits": {},
  "UniversalThree": "",
  "CommonThree": ""
}

问题：

我有三个具体问题：

1) 如何保留“男性”和“女性”正下方以及“男性”之前的属性？在我运行我的程序后，这些属性不会显示在我的响应中。

我想保留像

这样的属性

"BirthDate":"", 
"UniqueTraits": "" AND 

"Gender": "Male", 
"PlaceOfBirth": "", 
"Weight": "", 
"Height": "", 
"EyeColor": ""

与我的原始和预期的 json 数据完全相同。

2) 我如何在男性和女性的 Country[] 之后添加另一个 EastCounty{}，基于“County”：East 和 Orientation？请参考原始和预期的 json 以供参考。

3) 我如何将原始 json 中的 Boy[] 重构为新结构，正如预期 json 响应中的 Girl[] 所示？注意 Boy[] 中的“Id”更改为 Girl 中的“Number”。因此，如果“AgeGroup”中的任何一个中有多个“标识”，那么每个记录的“Number”都会按顺序更改。

当前节目：

function modifyImplementations(Implementations) {
  var finalResult = [];

  for (var i = 0; i < Implementations.Implementations.length; i++) {
    var currentImplementation = Implementations.Implementations[i];
    var targetObj = {
      "Male": {
        "Gender": "Male",
        "Country": [],
        "State": currentImplementation.State
      },
      "Female": {
        "Gender": "Female",
        "Country": [],
        "State": currentImplementation.State
      }
    };

    for (var j = 0; j < currentImplementation.Country.length; j++) {
      var currentCountry = currentImplementation.Country[j];
      if (currentCountry.Orientation === 'Male') {
        targetObj.Male.Country.push(currentCountry);
      } else if (currentCountry.Orientation === 'Female') {
        targetObj.Female.Country.push(currentCountry);
      }
    }
    finalResult.push(targetObj);
  }
  return finalResult
}

var x = Object.assign({}, Implementations);
x.Implementations = modifyImplementations(Implementations);

console.log(JSON.stringify(x));

【问题讨论】：

正如您所问的，如果要保留大量属性，那么在您创建 targetObj 而不是创建新对象的地方将 currentImplementation 克隆到一个新对象中并制作对其进行更改，例如添加国家/州/县，最后从克隆的 obj 中删除国家/州数组并将所有这些返回到 finalResult，这样您就只会在需要的字段上工作！
感谢您的回复，我无法在控制台中看到克隆的对象。 for (var i = 0; i
不是 var originalObject = Object.assign({}, currentApplication)，改成： var originalObject = Object.assign({}, currentImplementation) 也可以直接赋值： let originalObject = currentImplementation;确保此时 :: var x = Object.assign({}, Implementations); x.Implementations = modifyImplementations(Implementations);控制台.log(JSON.stringify(x)); Node.Js 等待 x.Implementations = modifyImplementations(Implementations);在打印 console.log 之前完成，因为 Node.Js 是异步的，请确保检查!!
我已经更新了到目前为止的内容，因为我无法在评论框中添加内容。如何验证克隆的对象是否被正确复制？
好的建议，如果你使用vscode作为你的IDE，然后尝试使用quokka扩展，这对代码的运行时分析非常有帮助，你只需要打开quokka选项卡（cmd +shift+p) 将打开一个新的 js 文件，然后粘贴您的代码并确保没有错误，使用少量 console.logs 进行快速检查！

标签： javascript node.js json node-modules

【解决方案1】：

这应该是可以产生预期结果的工作功能，请进行一些重构，因为肯定有更好的方法可以在少数代码区域中实现，只需在这里快速完成您的所有需求以产生预期的 o/p 以及您的问题需求用有效的 JSON 更新：

function modifyImplementations(Implementations) {

    for (let i = 0; i < Implementations.Implementations.length; i++) {
        let currentImplementation = Implementations.Implementations[i];

        currentImplementation['Male']['Country'] = []
        currentImplementation['Female']['Country'] = []
        currentImplementation['Male']['EastCounty'] = []
        currentImplementation['Female']['EastCounty'] = []
        currentImplementation['Male']['State'] = currentImplementation['State'];
        currentImplementation['Female']['State'] = currentImplementation['State'];

        for (let j = 0; j < currentImplementation.Country.length; j++) {
            let currentCountry = currentImplementation.Country[j];
            let currentCountryObj = {}
            if (currentCountry.Orientation === 'Male') {
                if (currentCountry.County && currentCountry.County == "East") {
                    currentCountryObj['County'] = currentCountry.County
                    currentCountryObj['Name'] = currentCountry.Name
                    currentCountryObj['Orientation'] = currentCountry.Orientation
                    currentImplementation['Male']['EastCounty'].push(currentCountryObj)
                } else {
                    currentCountryObj['Name'] = currentCountry.Name
                    currentCountryObj['Orientation'] = currentCountry.Orientation
                    currentImplementation['Male']['Country'].push(currentCountryObj);
                }
            } else if (currentCountry.Orientation === 'Female') {
                if (currentCountry.County && currentCountry.County == "East") {
                    currentCountryObj['County'] = currentCountry.County
                    currentCountryObj['Name'] = currentCountry.Name
                    currentCountryObj['Orientation'] = currentCountry.Orientation
                    currentImplementation['Female']['EastCounty'].push(currentCountryObj)
                } else {
                    currentCountryObj['Name'] = currentCountry.Name
                    currentCountryObj['Orientation'] = currentCountry.Orientation
                    currentImplementation['Female']['Country'].push(currentCountryObj);
                }
            }
        }
        delete currentImplementation['Country']
        delete currentImplementation['State']

        let mapObj = [];
        for (items of currentImplementation.Boy) {
            let objs = currentImplementation.Boy.filter((obj) => {
                return items.AgeGroup === obj.AgeGroup
            })
            mapObj.push(objs)
            currentImplementation.Boy = currentImplementation.Boy.filter(e => e.AgeGroup !== items.AgeGroup);
        }

        let finalArray = mapObj.filter(e => e.length > 0)
        currentImplementation['Girl'] = []
        for (anArray of finalArray) {
            let finalObj = {}
            finalObj.identification = [];
            if (anArray.length && anArray.length > 1) {
                let number = 1
                for (oneObj of anArray) {
                    let objs = {};
                    objs['Number'] = number
                    objs['MaternalName'] = oneObj['MaternalName']
                    objs['PaternalName'] = oneObj['PaternalName']
                    number += 1
                    finalObj['AgeGroup'] = oneObj.AgeGroup
                    finalObj.identification.push(objs);
                }
            } else if (anArray.length == 1) {
                let objs = {};
                finalObj['AgeGroup'] = anArray[0].AgeGroup
                objs = {};
                objs['Number'] = 1
                objs['MaternalName'] = anArray[0]['MaternalName']
                objs['PaternalName'] = anArray[0]['PaternalName']
                finalObj.identification.push(objs);
            }
            currentImplementation['Girl'].push(finalObj)
            delete currentImplementation['Boy']
        }
    }
    return Implementations
}

【讨论】：

感谢您的回复。上面的代码肯定可以工作。我唯一的问题是当属性很大时，在这种情况下，在 targetObj 中添加所有属性会太密集。相反，有没有一种方法可以在“Male”{} 之前和之后推送属性，或者可以在控制台日志中以不同的方式打印以获取属性而不在 targetObj 中添加每个属性？我肯定要考虑有大量属性时的边缘情况。
@Eva ：根据最新的 cmets 更新了答案，您的问题中有许多子问题，需要一些时间为所有场景编码/重构您的代码，并继续您的编码并让我们知道确切的位置你被困住了。让我们总结一下，而不是现在考虑性能因素..
感谢您为帮助我所做的努力，感谢您及时回答我的问题。通过更新的答案和一些重构以将 Personality Traits 中的部分附加到底部，我能够看到“Male”之前和之后的属性。但是，EastCounty{} 在我的响应中是空的，并在 originalObject[ '男']['EastCounty'].push(currentCountryObj)。是因为它在原始对象中的声明方式吗？
我已经测试了该代码并且它应该可以工作，你能给我错误或给我代码 lemme 检查是否有我可以快速修复的问题..
你是对的，它只需要数组才能使推送函数有效，即 originalObject['Male']['EastCounty'] = []。它没有抛出任何错误，我明白了'EastCounty' 内的数据。但是，json 响应在我的响应中是 EastCounty[]，因为它在 originalObject 中被声明为数组。预期的 json 响应是 'EastCounty' {}（大括号），它不是一个数组。如果我们将 push 函数声明为 originalObject['Male']['EastCounty'] = {}，有没有办法仍然可以使用它，这就是我所做的更改并得到错误“push is not a valid function”。希望我的解释有所帮助！