CODEWITHSUNDEEP
javascript
Jayb
Jayb

Reputation: 11

How to convert an object into nested object

How can I transform the following: 

{ 
     Eldoret: "900",
     Nairobi: "1900" 
 }

into:

 [
        {
          y:"Eldoret",
          a: 900
         },
         {
          y:"Nairobi",
          a:1900
          }
    ]

using JavaScript. I've tried using the following snippet but it just picks on the last property

for(var key in data3){
    if(data3.hasOwnProperty(key)){
        data_obj.y =  key;
        data_obj.a =  data3[key];
    }

Output:

 { 
      y: "Nairobi",
      a: "1900" 
 }

Upvotes: 0

Views: 65

Answers (2)

jochen
jochen

Reputation: 3920

You can build up the result step-by-step by appending items to a new array in your loop:

data3 = {
  Eldoret: "900",
  Nairobi: "1900"
}

res = []
for (var key in data3) {
  res.push({
    y: key,
    a: data3[key],
  })
}

console.log(res)

Upvotes: 0

Mike 'Pomax' Kamermans
Mike 'Pomax' Kamermans

Reputation: 53598

You iterate over your keys:

var myobj = { .... };
var objKeys = Object.keys(myobj);
var reformatted = objKeys.map(function(key) {
  return {
    x: key,
    y: myobj[key]
  };
});

Upvotes: 4

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