array formatiing in javascript

Question

I have an json array like this

 var data= [
  {
    "id": 24,
    "title": "BCOM",
    "start": "2014-08-05 12:59:00 PM",
    "end": "2014-08-05 2:59:00 PM",
    "description": "mcom",
    "DIFF": 120
  },
  {
    "id": 26,
    "title": "MCOM",
    "start": "2014-08-10 12:59:00 PM",
    "end": "2014-08-10 4:59:00 PM",
    "description": "mcom",
    "DIFF": 240
  },
  {
    "id": 29,
    "title": "MCOM",
    "start": "2014-08-11 12:59:00 PM",
    "end": "2014-08-11 8:59:00 PM",
    "description": "mcom",
    "DIFF": 480
  },
  {
    "id": 30,
    "title": "MCOM",
    "start": "2014-08-13 12:59:00 PM",
    "end": "2014-08-13 4:59:00 PM",
    "description": "mcom",
    "DIFF": 240
  }
]

I want to make this array having index with out double quotes and change some index names , and some other modifications by using javascript array functions.

like

var data = [
            {
                id: 24,
                title:"MCOM",
                y: 120


            },              

            {
                id: 26,
                title:"MCOM",
                y: 240,

            },
            {
                id: 29,
                title:"MCOM",
                y: 480,

              },

        ]

Please help me in this, Thank you

What is the issue you are facing ? It seems straightforward ! One simple way would be to convert that JSON to array , iterate through it and assign a new property y with the value of DIFF and delete other attributes ! You can use Array.prototype.forEach() and code a callback function to do your modifications. — AllTooSir
– AllTooSir, Commented Aug 8, 2014 at 6:05
actually the issue is i have to populate this data on to the high chart, so i have to format the array, like "id" to id, and "title" to title, and "diff" to y, how can we do this in javasript — shiva
– shiva, Commented Aug 8, 2014 at 6:09
That doesn't make a lot if sense to me. Properties names are always strings in JS. If you want to change how they appear in the source code, open a text editor and remove the quotation marks. Whether you used quotes or not doesn't make a difference at runtime. — Felix Kling
– Felix Kling, Commented Aug 8, 2014 at 6:50

Ferdi265 · Accepted Answer · 2014-08-08 06:08:39Z

1

Indexes with quotes ({ "title": "asdf" }) are equivalent to indexes without quotes ({ title: "asdf" }) in javascript, except that you can use more symbols like spaces, brackets or keywords in the quoted version.

Also, in JSON, you HAVE to add quotes around indexes, otherwise it's not valid JSON.

About the modifications, you can use Array.prototype.map() to do this

var newData = data.map(function (el) {
    return {
        id: el.id,
        title: el.title,
        y: el.DIFF
    };
});

console.log(newData);

answered Aug 8, 2014 at 6:08

Ferdi265

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Comments

Mritunjay · Accepted Answer · 2014-08-08 06:17:11Z

1

Use Array map function for this

var result = data.map(function (obj) {
    return {id:obj.id,title:obj.title,y:obj.DIFF};
})

console.log(result);

I'm assuming in the result there should be BCOM as title for id, 24. I this is a type that there it's written as MCOM.

what I think "" shouldn't matter for keys.

edited Aug 8, 2014 at 6:17

answered Aug 8, 2014 at 6:09

Mritunjay

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Comments

Rahul · Accepted Answer · 2014-08-08 06:08:31Z

0

Do some googling ;-) it will help..

var data = '{ "name": "John Smith" }';       //Let's say you got this
data = data.replace(/\"([^(\")"]+)\":/g,"$1:");  //This will remove all the quotes
data;                                         //'{ name: "John Smith" }'

Hope it helps.

answered Aug 8, 2014 at 6:08

Rahul

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1 Comment

Ferdi265 Over a year ago

without the quotes it's not valid JSON.

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