Here's the JS, https://gist.github.com/windmaomao/d13f69d92a85124e9d8dad2f7b803618
And Rs, https://gist.github.com/windmaomao/fecadaf57f3fb273baba0c910248af29
Please let me know if you find out anything, Thanks Ski.
Written by Fang Jin
Front-end Engineer, book author of “Designing React Hooks the Right Way” and "Think in Recursion"