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

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.

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

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

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

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 ?'); });

What's so important about the return? You are not even making use of it.
To chain without callback, i will update my answer to understand
That doesn't seem to have anything to do with the question though.

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