Configuring jstree right-click contextmenu for different node types

Question

I\'ve seen an example somewhere online showing how to customise the appearance of jstree\'s right-click context menu (using contextmenu plugin).

For example, allow

Answer 1

as of jsTree 3.0.9 I needed to use something like

var currentNode = treeElem.jstree('get_node', node, true);
if (currentNode.hasClass("folder")) {
    // Delete the "delete" menu item
    delete items.deleteItem;
}

because the node object that is provided is not a jQuery object.