how to make an array from json array

Question

I have a json response like this,

"meteo_inverter_analysis":{  
    "Id93922.1":{  
        "inverter_id":"Id93922.1", "total_electricity_generated":1567.7910000000002
    },
    "Id93922.2":{  
        "inverter_id":"Id93922.2", "total_electricity_generated":1468.4869999999999
    },
    "Id93922.3":{  
        "inverter_id":"Id93922.3","total_electricity_generated":498.7319999999999
    },
    "Id93922.4":{  
        "inverter_id":"Id93922.4","total_electricity_generated":461.8369999999999
    }

}

from that response i want to create an js array from total_electricity_generated. The array would be: var array = [1567.7910000000002, 1468.4869999999999, 498.7319999999999, 461.8369999999999]

Can anyone help me how to do it? TIA

Iterate over the JSON data ,and store that value in the array Refer this if you don't know how to do it — dheeraj tripathi
– dheeraj tripathi, Commented Mar 17, 2018 at 16:21

Ankit Agarwal · Accepted Answer · 2018-03-17 16:24:28Z

1

You can get the keys of the meteo_inverter_analysis and then loop over to that keys to get the property value of Id93922.*

var data = {"meteo_inverter_analysis":{  
    "Id93922.1":{  
        "inverter_id":"Id93922.1",     
         "total_electricity_generated":1567.7910000000002
    },
    "Id93922.2":{  
        "inverter_id":"Id93922.2",
        "total_electricity_generated":1468.4869999999999
    },
    "Id93922.3":{  
        "inverter_id":"Id93922.3",
        "total_electricity_generated":498.7319999999999
    },
    "Id93922.4":{  
        "inverter_id":"Id93922.4",
        "total_electricity_generated":461.8369999999999
    }
}
};

var keys = Object.keys(data.meteo_inverter_analysis);
var arr = keys.map(key => data.meteo_inverter_analysis[key].total_electricity_generated
);

console.log(arr);

answered Mar 17, 2018 at 16:24

Ankit Agarwal

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1 Comment

Alauddin Ahmed Over a year ago

Thats the answer i needed,., Thanks @Ankit Agarwal

quantik · Accepted Answer · 2018-03-17 18:19:44Z

1

I think the following example will help you:

 <script>
  var car =new Array();
  var myObj, i;
  myObj = {
 "name":"John",
 "age":30,
 "cars":[ "Ford", "BMW", "Fiat" ]
 };

 for (i = 0; i < myObj.cars.length; i++) {
 car[i]= myObj.cars[i] + "<br>";
 }

</script>

edited Mar 17, 2018 at 18:19

quantik

81613 silver badges28 bronze badges

answered Mar 17, 2018 at 16:33

Mustapha Hummaida

364 bronze badges

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