Function completedPromise

static/jQuery-contextMenu/jquery.contextMenu.js:1534–1542

(opt, root, items)

                opt.$node.addClass(root.classNames.iconLoadingClass);

                function completedPromise(opt, root, items) {
                    // Completed promise (dev called promise.resolve). We now have a list of items which can
                    // be used to create the rest of the context menu.
                    if (typeof items === 'undefined') {
                        // Null result, dev should have checked
                        errorPromise(undefined);//own error object
                    }
                    finishPromiseProcess(opt, root, items);
                }

                function errorPromise(opt, root, errorItem) {
                    // User called promise.reject() with an error item, if not, provide own error item.