extjs - Built a JSON from string pieces -

i work line chart in extjs4 now. chart based on data of store. store change data 'loadrawdata()' function. familiar situation, isn't it?

ajax sends strings every 10 seconds , need built json pieces of strings. i'm trying:

success: function(response) {     var requestmassive = json.parse(response.responsetext);     var jarray = [];                 for(var i=0;i<requestmassive.length;i++){                     var firstpiece = json.parse(response.responsetext)[i].date;                      var secondpiece = json.parse(response.responsetext)[i].connectcount;                     var recording = "{'machinesplayed':"+firstpiece+", 'machinesonline':"+secondpiece+"}";                     jarray.push(recording);                 }                  jarray = '['+jarray+']';                 store.loadrawdata(jarray); } 

but wrong way. how properly?

you use loaddata() function instead of loadrawdata(). loaddata() needs array of objects.

success: function(response) {    var requestmassive = json.parse(response.responsetext);    var jarray = [];       for(var i=0;i<requestmassive.length;i++){          jarray.push({ machinesplayed: requestmassive[i].date, machinesonline: requestmassive[i].connectcount});       }        store.loaddata(jarray); }