I have tried almost every permutation of jQuery to disable a multi line text field (plain text) named [Client]. Same internal name as display name. The 4 lines below have been tried one a time with no success. I need help. Been doing this for a long time and starting to wonder if SP2019 is different from SP2013. I welcome guidance
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$("textarea[title='Client']").prop('disabled', true);
$("textarea[title='Client']").prop('disabled', 'disabled');
$("textarea[title='Client']").attr('disabled', true);
$("textarea[title='Client']").attr('disabled', 'disabled');
});
</script>