javascript - Pivot data using lodash -


i need convert the init array final array preferably using lodash.

initarray = [    {       "date":"2017-08-15",       "data":[          {             "color":"orange",             "count":100          },          {             "color":"green",             "count":101          }       ]    },    {       "date":"2017-08-14",       "data":[          {             "color":"orange",             "count":102          },          {             "color":"green",             "count":103          }       ]    } ]  finalarray = [    {       "color":"orange",       "data":[          100,          102       ]    },    {       "color":"green",       "data":[          101,          103       ]    } ]

this way seems lodash calls make sense me.

// var _ = require('lodash')    initarray = [     {        "date":"2017-08-15",        "data":[           {              "color":"orange",              "count":100           },           {              "color":"green",              "count":101           }        ]     },     {        "date":"2017-08-14",        "data":[           {              "color":"orange",              "count":102           },           {              "color":"green",              "count":103           }        ]     }  ]    result = _(initarray)      //.map('data')      //.flatten()      .flatmap('data') // instead of .map('data').flatten()      .groupby('color')      .map((item, key) => ({          color: key,          count: _.map(item, 'count')      }))      .value()    console.log(result)
<script src="https://cdn.jsdelivr.net/lodash/4/lodash.min.js"></script>


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