Character limit elementor form

<script type="text/javascript">
     jQuery(document).ready(function() {
jQuery('#form-field-name').attr('maxlength','50');
});
     jQuery(document).ready(function() {
jQuery('#form-field-lastname').attr('maxlength','50');
});
     jQuery(document).ready(function() {
jQuery('#form-field-message').attr('maxlength','800');
});
</script>