Trying to convert array of object to object in javascript

Question

I'm trying to convert object from array of object in JavaScript but not working

[{"external_parts":"[ { "type": "D","xcor": 86.54545593261719,"ycor": 413.4545593261719} ] "}],

from that I want only this object

{ "type": "D","xcor": 86.54545593261719,"ycor": 413.4545593261719}

I have tried like that to convert but not working

var parsedValue = responseData.data.items[0].external_parts;
//convert
var result = {};
for (var i=0; i<parsedValue.length; i++) {
  result[parsedValue[i].key] = parsedValue[i].value;
}
coordinatesArray.push(parsedValue);

parsedValue is an array. you should not be reading key-value of the same. just read the object with index of the array element — Chiranjib, Jul 15 '19 at 06:41
i'm getting that json values from api and i have convert it to object like [{1,2,3}] to {1,2,3} — Dharshan PLUV, Jul 15 '19 at 07:11

MH2K9 · Answer 1 · 2019-07-15T07:13:16.377

0

const data = [
    {
        "external_parts":[
            { 
                "type": "D",
                "xcor": 86.54545593261719,
                "ycor": 413.4545593261719
            }
        ]
    }
];

Get the object:

var result = data[0].external_parts[0]

console.log(result)

Output:

{type: "D", xcor: 86.54545593261719, ycor: 413.4545593261719}

edited Jul 15 '19 at 07:13

answered Jul 15 '19 at 06:52

MH2K9

11,951
7
32
49

This still returns an array. The mapping isn't really doing anything for you. – Neil Jul 15 '19 at 06:54
getting the same and the result is [{"type":"D","xcor":86.54545593261719,"ycor":413.4545593261719}] – Dharshan PLUV Jul 15 '19 at 07:06
@DharshanPLUV , Second option `var result = data[0].external_parts[0];` returns only object `{type: "D", xcor: 86.54545593261719, ycor: 413.4545593261719}` what you are expecting. – MH2K9 Jul 15 '19 at 07:10
@DharshanPLUV updated as per your requirements. – MH2K9 Jul 15 '19 at 07:16
actually my need is [ { } ] to { } that is it – Dharshan PLUV Jul 15 '19 at 07:16
1

so it is `[{}][0]`. `[{1,2,3}][0]` returns `{1,2,3}` – MH2K9 Jul 15 '19 at 07:17
still not getting can u explain ur last answer – Dharshan PLUV Jul 15 '19 at 07:50

score 0 · Accepted Answer · answered Jul 15 '19 at 09:39

0

Try this way

   var parsedValue = responseData.data.items[0].external_parts;
    //convert
    var result;
    for (var i=0; i<parsedValue.length; i++) {
     result=responseData.data.items[0].external_parts[i]
    }
    coordinatesArray.push(result);

answered Jul 15 '19 at 09:39

Janaki Narayanan

523
6
24

Trying to convert array of object to object in javascript

2 Answers2