How to Clear textbox box using jquery

I have this Laravel-5.8 code

          <div class="col-12 col-sm-6">
            <div class="form-group">
              <label class="control-label"> Weight(%):<span style="color:red;">*</span></label>
              <input  type="number" name="weighted_score" id="total_weighted_score" placeholder="Enter weighted score here" class="form-control" max="120" onkeyup="checkScore(this.value)">
            </div>
          </div>  

javascript

    <script type="text/javascript">
        function checkScore(value){
            let max_score = $("#max_score").val();
            let total_weighted_score = $("#total_weighted_score").val();
            let sumValue = parseInt(total_weighted_score) + parseInt(value);

            if (sumValue > max_score) {
              alert("sum value is greater than max score");
              $("#weighted_score").val('');
              return false;
            }
        }
    </script>

How do I clear the textbox when this condition:

            if (sumValue > max_score) {
              alert("sum value is greater than max score");
              $("#weighted_score").val('');
              return false;
            }

is fulfilled.