How to set the default sorting order for this AngularJS website?

I am using AngularJS. I would like to make a table to sort by the first column immediately after the webpage finish loading. The HTML table code looks like this;

<table class="table table-hover data-table sort display">
        <thead>
          <tr>
            <th class="col_1">
              <a href="" ng-click="columnToOrder='col_1';reverse=!reverse">Column 1</a>
            </th>
            <th class="col_2">
              <a href="" ng-click="columnToOrder='col_2';reverse=!reverse">Column 2</a>
          </tr>
        </thead>
        <tbody>
          <tr ng-repeat="item in filteredList | orderBy:columnToOrder:reverse">
            <td>{{item.col_1}}</td>
            <td>{{item.col_2}}</td>     
          </tr>
        </tbody>
      </table>

Now, the table simply loads the data without any particular sorting order as the webpage loads until I click on the column heading. If I want to set the default to be sorted by column 1 immediately after the webpage loads, how should the html code look like? Or do I have to modify the controller instead?

Thank you.