CODEWITHSUNDEEP
javascriptarraysjsonstringangular
Zlatko Loa
Zlatko Loa

Reputation: 149

convert nested array to JSON string in js?

I have a set of array like this : [["Sarah"],["Jamie"],["B"],["148"]]

and I want to convert this into JSON string with specific element for each vaues. For example, 

{ "name":"Sarah", "grade":"148", "School":"B"...}

How should I proceed? I tried to toString the array then bind with this element but it doesn't work out well..

Original Json 

   "Data":{
      "Table":[
         {
            "Name":[
               "Jamie"
            ],
            "School":[
               "A"
            ],
            "grade":[
               "99"
            ]

         },
         {
            "Name":[
               "Mike"
            ],
            "School":[
               "B"
            ],
            "grade":[
               "148"
            ]
         }
      ]
   }
}

Upvotes: 1

Views: 4649

Answers (3)

lakshmipradeep
lakshmipradeep

Reputation: 1

let newDataArray = this.data.Data.Table.reduce(function(arr, obj) {
  let newObj = {};
  for (let key in obj) {
    newObj[key] = obj[key][0]
  }

  arr.push(newObj);
    return arr;
  }, []
);
newData =JSON.stringify(newDataArray);

JSON.stringify(newDataArray) array from tymeJV 's code snippet will give you the JSON string as follows.

[{"Name":"Jamie","School":"A","grade":"99"},{"Name":"Mike","School":"B","grade":"148"}]

Demo: http://plnkr.co/edit/wPhVTOFhRgERLXKCuoYl?p=preview

Upvotes: 0

Batman25663
Batman25663

Reputation: 272

You can try with the simple forEach

var data =   {"Data": {"Table": [{"Name": ["Jamie"],"School": ["A"],"grade": ["99"]},{"Name": ["Mike"],"School": ["B"],"grade": ["148"]}]}};

var items = [];
data['Data']['Table'].forEach(function(item){
  items.push({name: item.Name[0], grade: item.grade[0], school: item.School[0]});
});

console.log(JSON.stringify(items));

Upvotes: 1

tymeJV
tymeJV

Reputation: 104775

You can use reduce to do this!

let newData = data.Data.Table.reduce(function(arr, obj) {
    let newObj = {};
    for (let key in obj) {
        newObj[key] = obj[key][0]
    }

    arr.push(newObj);
    return arr;
}, [])

Demo: https://jsfiddle.net/500eo2gp/

Upvotes: 0

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