JAVASCRIPT

uncaught TypeError: $.jajax is not a function

    <script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha384-3ceskX3iaEnIogmQchP8opvBy3Mi7Ce34nWjpBIwVTHfGYWQS9jwHDVRnpKKHJg7" crossorigin="anonymous"></script>

Uncaught TypeError: $(...).jstree is not a function

<script src="/path/to/jstree.min.js"></script>
<script>
    jQuery(function($) {
         ("#divtree").jstree();
    });
</script>