JSFiddle - React, Tailwind, and code Playground
by Anatol
HTML
<ul class="users">
<li class="abgemeldet" data-userid="1">User 1</li>
<li class="abgemeldet" data-userid="2">User 2</li>
</ul>
JavaScript
$('.users').on('click', '.abgemeldet', function() {
alert($(this).attr('data-userid'));
//$('#adminuserdetail').load('ajax_userdetail.php?id='+$(this).attr('data-userid'));
});