javascript - Get ID of element in jQuery autocomplete source function -

i have webservice method takes id of element determine source autocompletes.

in nutshell, i'm doing this:

$("input[type='text']").autocomplete({     source: function(request, response) {         var id = $(this).attr('id');         var params = {'id': id, 'term': request.term};         var jsonparams = json.stringify(params);         $.ajax({             type: "post",             url: "page.aspx/getautocompletelist",             data: jsonparams,             contenttype: "application/json; charset=utf-8",             datatype: "json",             success: function(msg) {                 response(json.parse(msg.d));             },             error: function() {                 response([]);             }         });     } }); 

but id isn't referring original selector.

what can id of selected input element? or better strategy this?

try

$(this.element).prop("id");  this.element[0].id;  $(this.element.get(0)).attr('id'); 

jsfiddle

$("input[type='text']").autocomplete({      source: function(request, response) {          var id = $(this.element).prop("id");          var id2=this.element[0].id;          var id3=$(this.element.get(0)).attr('id');          console.log(id);          console.log(id2);          console.log(id3);          var params = {'id': id, 'term': request.term};          var jsonparams = json.stringify(params);          $.ajax({              type: "post",              url: "page.aspx/getautocompletelist",              data: jsonparams,              contenttype: "application/json; charset=utf-8",              datatype: "json",              success: function(msg) {                  response(json.parse(msg.d));              },              error: function() {                  response([]);              }          });      }  });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>  <input type="text" id="asd"></input>