如何将字典中的嵌套值更改为上级键

Question

我有特定格式的json文件，但我想将其更改为需要拾取其中一个嵌套值并将其投影为上级键的格式我只尝试了stackoverflow的建议，并很累地达到了特定的嵌套值，但是我无法提高它。data = open('sampleDemo.json','r')json_decode=json.load(data)for item in data:    mydict={}    mydict['spk1'] = item.get('audioResponse').get('startTime').get('emotion').get.....    print mydict所需的输出：输入文件如下所示：{   "audioResponse": [  {     "speaker":"spk1",     "startTime": "0.0",     "endTime": "15.239",     "emotion": "neutral",     "emotionScore": "0"  },  {     "speaker":"silence",     "startTime": "15.240",     "endTime": "16.900",     "emotion": "NA",     "emotionScore": "NA"  },  {     "speaker":"spk2",     "startTime": "16.932",     "endTime": "27.320",     "emotion": "happy",     "emotionScore": "2"  },  {     "speaker":"spk1",     "startTime": "27.977",     "endTime": "37.900",     "emotion": "anger",     "emotionScore": "-3"  } ]}

Answer 1

var data = {

  "audioResponse": [{

      "speaker": "spk1",

      "startTime": "0.0",

      "endTime": "15.239",

      "emotion": "neutral",

      "emotionScore": "0"

    }, {

      "speaker": "silence",

      "startTime": "15.240",

      "endTime": "16.900",

      "emotion": "NA",

      "emotionScore": "NA"

    }, {

      "speaker": "spk2",

      "startTime": "16.932",

      "endTime": "27.320",

      "emotion": "happy",

      "emotionScore": "2"

    }, {

      "speaker": "spk1",

      "startTime": "27.977",

      "endTime": "37.900",

      "emotion": "anger",

      "emotionScore": "-3"

    }]

};

var result = {

  audioResponse: []

};

for (var item of data.audioResponse) {

  var existed = result.audioResponse.find(x => x[item.speaker]);

  if (!existed)

    result.audioResponse.push({

      [item.speaker]: []

    });

  existedArray = result.audioResponse.find(x => x[item.speaker])[item.speaker];

  var copy = {...item};

  delete copy.speaker;

  existedArray.push(copy);

}

console.log(result);

Answer 2

var inputList = {

   "audioResponse": [

  {

     "speaker":"spk1",

     "startTime": "0.0",

     "endTime": "15.239",

     "emotion": "neutral",

     "emotionScore": "0"

  },

  {

     "speaker":"silence",

     "startTime": "15.240",

     "endTime": "16.900",

     "emotion": "NA",

     "emotionScore": "NA"

  },

  {

     "speaker":"spk2",

     "startTime": "16.932",

     "endTime": "27.320",

     "emotion": "happy",

     "emotionScore": "2"

  },

  {

     "speaker":"spk1",

     "startTime": "27.977",

     "endTime": "37.900",

     "emotion": "anger",

     "emotionScore": "-3"

  } 

]}

var result = inputList.audioResponse.reduce((acc, {speaker, ...rest})=>{

    acc['audioResponse'][speaker] = (acc['audioResponse'][speaker]) || [];

    acc['audioResponse'][speaker].push(rest);

    return acc;

}, {audioResponse:{}});

console.log(result);

Answer 3

但我想将其更改为需要拾取其中一个嵌套值并将其投影为上级键的格式

您可以将组形成的属性设置为动态

'use strict';

let attribute = 'speaker'; // can be 'speaker' or 'emotion' or 'emotionScore'

let output = {

  audioResponse: []

};

for (let response of data.audioResponse) {

  let groupKey = response[attribute];

  let group = output.audioResponse[groupKey];

  delete response[attribute]; //remove the key

  if (group) {

    group.push(response);

  } else {

    group = [response];

  }

  output.audioResponse[groupKey] = group;

}

console.log(output);