javascript - Convert JSON Object to a simple array -

i have following nested json object coming call:

var jsondata = jquery.ajax({             url: "http://testsite/_vti_bin/listdata.svc/projecthours",             datatype: "json",             async: false         }).responsetext; 

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{     "d": {         "results": [             {                 "__metadata": {                     "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(1)",                     "etag": "w/\"1\"",                     "type": "microsoft.sharepoint.dataservice.projecthoursitem"                 },                 "contenttypeid": "0x0100c5d130a92a732d4c9e8489b50657505b",                 "title": "ryan cruz",                 "hours": 35,                 "id": 1,                 "contenttype": "item",                 "modified": "/date(1373535682000)/",                 "created": "/date(1373535682000)/",                 "createdby": {                     "__deferred": {                         "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(1)/createdby"                     }                 },                 "createdbyid": 19,                 "modifiedby": {                     "__deferred": {                         "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(1)/modifiedby"                     }                 },                 "modifiedbyid": 19,                 "owshiddenversion": 1,                 "version": "1.0",                 "attachments": {                     "__deferred": {                         "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(1)/attachments"                     }                 },                 "path": "/sites/itg/resourcecenters/spwidgets/lists/projecthours"             },             {                 "__metadata": {                     "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(2)",                     "etag": "w/\"1\"",                     "type": "microsoft.sharepoint.dataservice.projecthoursitem"                 },                 "contenttypeid": "0x0100c5d130a92a732d4c9e8489b50657505b",                 "title": "phillip phillips",                 "hours": 25,                 "id": 2,                 "contenttype": "item",                 "modified": "/date(1373535694000)/",                 "created": "/date(1373535694000)/",                 "createdby": {                     "__deferred": {                         "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(2)/createdby"                     }                 },                 "createdbyid": 19,                 "modifiedby": {                     "__deferred": {                         "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(2)/modifiedby"                     }                 },                 "modifiedbyid": 19,                 "owshiddenversion": 1,                 "version": "1.0",                 "attachments": {                     "__deferred": {                         "uri": "http://testsite/_vti_bin/listdata.svc/projecthours(2)/attachments"                     }                 },                 "path": "/sites/itg/resourcecenters/spwidgets/lists/projecthours"             }         ]     } } 

i want loop through each object's title , hours attribute , save them in array can pass google chart below:

var data = google.visualization.arraytodatatable(array); 

i tried following code, can't find json object:

function drawtable() {     var jsondata = jquery.ajax({                 url: "http://testsite/_vti_bin/listdata.svc/projecthours",                 datatype: "json",                 async: false             }).responsetext;              alert(jsondata);             var obj = jquery.parsejson(jsondata);             //alert(jsondata.length);             var sampledata = [], results = d.results;             (var = 0, len = results.length; < len; i++) {                 var result = results[i];                 sampledata.push({ title: result.title, hours: result.hours});             }              var data = google.visualization.arraytodatatable(obj);             var chart = new google.visualization.piechart(document.getelementbyid('spchart'));              chart.draw(data, {showrownumber: true});  } 

please give me ideas don't stuck here rest of day. thank you!

jquery.getjson({"http://testsite/_vti_bin/listdata.svc/projecthours",{},function(d) {     var sampledata = [], results = d.results;     (var = 0, len = results.length; < len; i++) {         var result = results[i];         sampledata.push({ title: results[i].title, hours: results[i].hours});     }; });