var deleteFolderById function id each oFile2 function if undefined if

var deleteFolderById = function (id) {
    $.each(oFile2, function (i, v) {
        if (v != undefined) {
            if (v.in == id) {
                if (v.file == "folder") deleteFolderById(v.id);
                else {
                    deleteFileById(v.id);
                }
            }
        }
    });
}