Angularjs range filter, n for n in [] | range:0:20

range.html

<select name="HH" data-ng-model="" style="width:auto;" 
      data-ng-options="n for n in [] | range:0:20" required>
      <option value="">----</option>
  </select>

range.js

angular.module('Filters', []).
    filter('range', function () {
        return function (input, min, max) {
            min = parseInt(min); //Make string input int
            max = parseInt(max);
            for (var i = min; i < max; i++)
                input.push(i.toString().padLeft(2, "0"));
            return input;
        };
    });