CODE EXAMPLE FOR JAVASCRIPT

how to use recursive function to select the parent in a tree array using angulat ui tree

$scope.checkNode = function (node) {
    node.checked = !node.checked;
    function checkParent(n) {
        if (!n.parent)
            return;
        const p = n.parent;
        p.checked = p.children.every(function(c) { return c.checked });
        checkParent(p);
    }
    
    checkParent(node);

    function checkChildren(c) {
        angular.forEach(c.children, function (c) {
            c.checked = node.checked;
            checkChildren(c);
        });
    }

    checkChildren(node);
};