Untitled

<script
src="https://code.jquery.com/jquery-3.6.0.min.js"
integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4="
crossorigin="anonymous"></script>
  
  <div class="input-field col s12">
    <select id="selectid">
      <option value="" disabled selected>Choose your option</option>
      <option value="1">Option 1</option>
      <option value="2">Option 2</option>
      <option value="3">Option 3</option>
    </select>
    <label>Materialize Select</label>
  </div>

      <script>

        $( document ).ready(function() {
            $('#selectid').append(`<option value="${"10"}">${"test1"}</option>`);
            $('#selectid').append(`<option value="${"11"}">${"test2"}</option>`);
            $('#selectid').append(`<option value="${"12"}">${"test3"}</option>`);
        });

      </script>