How to remove extra option from select?

Question

Angular

Good day!
I don't understand why this option appears.
I create:

<select ng-model="limit">
  <option value="5" ng-selected="true">5</option>
  <option value="10">10</option>
  <option value="15">15</option>
</select>

In controller:
$scope.limit = 5
I get:

<select ng-model="limit" class="ng-pristine ng-valid ng-touched">
  <option value="? number:5 ?"></option>
  <option value="5" ng-selected="true" selected="selected">5</option>
  <option value="10">10</option>
  <option value="15">15</option> 
</select>

Answer 1

Try this with ng-options

<div ng-app>
  <div ng-controller="TodoCtrl">
   <select ng-options="value for value in limits" ng-model="limit">
</select><br/>
  </div>
</div>

and the controller itself is like this.

function TodoCtrl($scope) {
     $scope.limits = [1,2,3,4,5];
     $scope.limit = 3
}