Validate Input Text value length and show in SweetAlert in ASP.Net

<input name="txtRemark" type="text" id="txtRemark" />
<input type="submit" name="btnValidate" value="Validate" id="btnValidate" />
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/sweetalert/1.1.0/sweetalert.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/sweetalert/1.1.0/sweetalert.min.css" />
<script type="text/javascript">
    $(function () {
        $('[id*=btnValidate]').on('click', function () {
            if ($('[id*=txtRemark]').val().length == 0) {
                swal('', 'Enter Remark', 'error');
                return false;
            }
        });
    });
</script>