Looping through dynamic JSON data using javascript -

i trying display json data key value dynamic varies 1 post request data hierarchy shown in diagram:

this part of code running,can suggest me how display json data key showed in redbox gonna change every post request

$.ajax({   type: "post",   url: "/",   datatype:'json',   data : { 'perfid': valueone, 'hostname': $("#host").val(), 'iteration': valuethree},   success: function(data) {     $('#img1').hide();     var k = data[$("#host").val()].iscsi_lif.result.sectoutput.sect.length;      for(var = 0; < k; i++) {                 var obj = k[i];                 console.log(obj);                 var iscsi =  parseint(data[$("#host").val()].iscsi_lif.result.sectoutput.sect.obj.avg_latency); console.log(iscsi);              } 

while running above snippet getting following error message :

data[$(....).val(...)].iscsi_lif.result.sectoutput.sect undefined

you can use "for in" loop iterate on keys of object without having specify key names.

for( var key in myobject){   myvalue = myobject[key];   // key dynamically created keyname } 

so code similar following:

...   success: function(data) {   $('#img1').hide();   var obj = data[$("#host").val()].iscsi_lif.result.sectoutput.sect;    for(var key in obj) {     if(obj.hasownproperty(key)){       var iscsi = parseint(obj[key].avg_latency);       console.log(iscsi);     }   } }