javascript - Order data before selecting an option in dropdown -

i have dropdown options can order data in html:

<select ng-model="sortorder" ng-options="option.value option.name item in options"></select> 

further have code populates data ng-repeat , uses sortorder model sort data dropdown options:

<div ng-repeat="hello in worlds" | filter:searchquery | orderby: sortorder" 

it works fine , data gets sorted options in dropdown order data in alphabetical order before click on option in dropdown list. or maybe option can selected default , sorts data. i've been searching answer here on stackoverflow haven't been able find any.

assuming following values in sortorder model:

$scope.options = [     {         name: 'name'         value: 'name'     },     {         name: 'address'         value: 'address'     } ]; 

where name , address properties of worlds model.

this takes care of sortby - need sortin feature - ascending or descending. use model that:

$scope.sortascending = false; 

thus, select dropdown be:

<select ng-model="sortorder" ng-options="item.value item.name     item in options"></select> 

and repeated elements be:

<div ng-repeat="hello in worlds" | filter:searchquery |      orderby:sortorder:sortascending"></div> 

now, in order have default sortby, need use same reference - way angularjs pick value , bind correctly

$scope.sortorder = $scope.options[0].value;

this set default sort order name property.