ntla123-itree
/
demo.html

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta http-equiv="X-UA-Compatible" content="ie=edge" />
        <title>itree v1.0.4</title>
    </head>
    <body>
        <script src="js/itree.class.js"></script>
        <script>
            const list = [
                { id: 1, pId: 2, rank: 1 },
                { id: 2, pId: 0, rank: 2 },
                { id: 3, pId: 0, rank: 1 },
                { id: 0, pId: 'NULL' },
            ];
            const itree = new Itree({
                list: list,
                pid: 'pId',
                nopid: 'NULL',
                sort: 'rank',
            });
            const { tree, levelsMap, idsMap, pidsMap, ids } = itree;

            console.log(itree);
            // console.log(JSON.stringify(itree));
        </script>
    </body>
</html>