How to count json object in javascript [duplicate]

Question

How can i count the object of my request?

I am using ajax and requesting json data to this url pbxApi+"/conference/participants/"+circle+"/"+data.conference+"/"+data.uniqueid+'?jsonp=response'; and i want to count the object of the response .

This is my code

 var uri = pbxApi+"/conference/participants/"+circle+"/"+data.conference+"/"+data.uniqueid+'?jsonp=response';
        getJsonData(uri, function(res){
            console.log(res.length);
});

This is my functiion:

  var getJsonData = function(uri,callback){
    $.ajax({
      type: "GET",
      dataType: "jsonp",
      url: uri,
      jsonpCallback: 'response',
      cache: false,
      contentType: "application/json",
      success: function(json){
        callback(json);
      }
    });
  }

This is my response

response({"_id":"561713a78693609968e3bbdd","event":"ConfbridgeJoin","channel":"SIP/192.168.236.15-00000024","uniqueid":"1444352918.94","conference":"0090000293","calleridnum":"0090000288","calleridname":"0090000288","__v":0,"status":false,"sipSetting":{"accountcode":"0302130000","accountcode_naisen":"201","extentype":0,"extenrealname":"UID1","name":"0090000288","secret":"Myojyo42_f","username":"0090000288","context":"innercall_xdigit","gid":101,"cid":"0090000018"}})

Thanks :)

It is very dificult to answer without the 'structure' of json in the response — Anonymous0day
– Anonymous0day, Commented Oct 13, 2015 at 7:48
It's still unclear what "count the object" means. An object is a single thing. So it's "1". — Felix Kling
– Felix Kling, Commented Oct 13, 2015 at 7:55
I assume you mean "count the properties", which is a duplicate. If not, please clarify your question. — Felix Kling
– Felix Kling, Commented Oct 13, 2015 at 8:03

Rahul Tripathi · Accepted Answer · 2015-10-13 07:50:39Z

5

You can try this:

Object.keys(jsonArray).length;

to get the number of items in your JSON object.

Also refer Object.keys

Object.keys() returns an array whose elements are strings corresponding to the enumerable properties found directly upon object. The ordering of the properties is the same as that given by looping over the properties of the object manually.

answered Oct 13, 2015 at 7:50

Rahul Tripathi

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Comments

divoom12 · Accepted Answer · 2015-10-13 07:48:58Z

0

You can

success: function(json){
    console.log('Object keys length: ' + Object.keys(json).length)
    callback(json);
}

For example {a:1, b:2, c:'Batman'} gives 3 as an answer

answered Oct 13, 2015 at 7:48

divoom12

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Comments

Anonymous0day · Accepted Answer · 2015-10-13 08:03:04Z

0

One Solution

 var uri = pbxApi+"/conference/participants/"+circle+"/"+data.conference+"/"+data.uniqueid+'?jsonp=response';

var getJsonData = function(uri,callback){
    return $.ajax({ // <----- note the return !
      type: "GET",
      dataType: "jsonp",
      url: uri,
      jsonpCallback: 'response',
      cache: false,
      contentType: "application/json",
      success: function(json){
        if(callback) callback(json);
      }
    });
  }

getJsonData(uri, function(res){
  console.log( Objec.keys(res).length) );
});

// with the return you will be able to do :
getJsonData(uri)
  .done( function(res){
    console.log( Objec.keys(res).length) );
  })
  .error(function( err ){
     console.log('an error ?? what is it possible ?');  
  });

edited Oct 13, 2015 at 8:03

answered Oct 13, 2015 at 7:59

Anonymous0day

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4 Comments

Felix Kling Over a year ago

What's so important about the return? You are not even making use of it.

Anonymous0day Over a year ago

To chain without callback, i will update my answer to understand

Felix Kling Over a year ago

That doesn't seem to have anything to do with the question though.

Anonymous0day Over a year ago

@FelixKling you right ! it is a plus ! :-)

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