Question

I have a generated JSON file that I would like to transform. Is there an easy way to transform the “id”/”value” form of this JSON to a proper key/value JSON object, without using any frameworks?

 
These lines:

     "value":"chrome",
     "id":"foo"

would convert to:

  "foo": "chrome"

Input JSON:

{"row":[
    {
        "column":[
            {
                "value":"chrome",
                "id":"foo"
            },
            {
                "value":0,
                "id":"bar"
            },
            {
                "value":"baz1",
                "id":"baz"
            },
            {
                "value":0,
                "id":"legacy"
            }
        ]
    },
    {
        "column":[
            {
                "value":"firefox",
                "id":"foo"
            },
            {
                "value":0,
                "id":"bar"
            },
            {
                "value":"baz2",
                "id":"baz"
            },
            {
                "value":0,
                "id":"legacy"
            }
        ]
    }
]
}

Desired JSON:

{"row":[

    {
        "foo":"chrome",
        "bar":0,
        "baz":"baz1",
        "legacy":0
    },
    {
        "foo":"firefox",
        "bar":0,
        "baz":"baz2",
        "legacy":0
    }
]
}

Answer 1

Here is the solution:

var result = {"row": []}

for (var i = 0; i < input["row"].length; i++) {
  var object = {};
  var column = input["row"][i]["column"];

  for (var j = 0; j < column.length; j++) {
    object[column[j]["id"]] = column[j]["value"];
  }

  result.row.push(object);
}

console.log(result);

input variable refers to your initial JSON object.

var input = {"row":[
    {
        "column":[
    ...