angularjs - Angular JS Action on ng-change the select dropdown -

i have simple table 3 rows , 2 values each row - date , state:

<tbody>    <tr>       <td>red</td>         <td class="lastmodified">{{item.reddate}}</td>         <td class="status">              <select id ="red" class="form-control" ng-change="update();" ng-model="item.redstatus">               <option value="" disabled="" selected="" class="ng-binding">please select value</option>               <option ng-selected="step.value === item.redstatus"  ng-repeat="(key, step) in steps">{{ step.title }}</option>             </select>        </td>    </tr>    <tr>green</tr>    <tr>      ....    </tr>                     </tbody> 

so, simple date , status values red, green , blue. 1 in dropdown - status, second - output date.

on change select value - need update date today's date.

 `$scope.item.reddate = new date();` 

is possible have 1 function ng-change="change();" can't send ng-change id...

special samir das find solution ng-change="update(id);":

<select id ="red" class="form-control" ng-change="update(id);" ng-model="item.redstatus">           <option value="" disabled="" selected="" class="ng-binding">please select value</option>           <option ng-selected="step.value === item.redstatus"  ng-repeat="(key, step) in steps">{{ step.title }}</option>  </select> 

here controller:

$scope.update = function(id){     id = event.target.id;     $scope.item[id+'date'] = new date();  };