how to create simple pagination for change folder html + pure JS

Question

how to create change folder pagination? e.g.:

1. Under folder have some sub-folders, eg: 1, 2, 3,..., future will add A1, A2, A3, A4, ... also will add another name of folders B1, B2, B3, B4, C1, C2, C3 ..., etc.
2. available only choose A's folders',
3. auto detect how many folders for paginate max number.
4. just using HTML + pure JS for create simple pagination.
5. each sub-folder inside have index.html file as default page.
6. each index.html page have one jQuery dataTables (future will change to pure JS)
7. pagination show on each index.html page footer.

i was try co-operating with other pagination, but finally have some bug and cannot solve. such as:

https://flaviusmatis.github.io/simplePagination.js/#page-20
https://www.jqueryscript.net/other/ajax-static-pagination.html
https://www.jqueryscript.net/demo/generic-px-pagination/
https://bilalakil.github.io/bin/simplepagination/#page-1

Temporary using px-pagination, it can work for me. But have some side effects still cannot solve, maybe only occur on my case. However, I cannot check it details, that is why, I wish change to pure JS replaced these jQuery, px-pagination, bootstrap, etc.

https://alumnivtcedu-my.sharepoint.com/:u:/g/personal/nelsonip_alumni_vtc_edu_hk/EbDHrXqbJAFPi3FukvSwm18B0fUbTfHcEC20gSK2ceXjYA?e=qB7F5D

upper hyperlink is my simple finished work, wish listen any comments and suggestions from you! Thanks!