Thanks for that Joint.js reference. I had also known of it and was gonna post it also but didn’t notice or realize they offered an open source version (cool I better re-look at some others too). There are also others which are only payment or subscription based.
Along with a lot of other frameworks related specifically to flowcharts and diagraming which offer connectors but those may or may not have the required events, callbacks etc., logic included. You can even find some nice D3.js, etc., examples which are relative. Many options to choose from but of course no one size fits all. So it just simply can't be definitively answered in a simple forum post to satisfy everyone or every need for such a broad topic. ;--)
Nah I don’t accept that, my post was basic.
Not to name drop (and in no particular order) but virtually every snippet and code logic discussion posted by any of these users are generally encapsulated with nuggets of pure brilliance and learning opportunities: @GreenSock , @Carl , @OSUblake , @PointC , @Jonathan , @mikel , @Dipscom , @elegantseagulls , @Rodrigo , @Shaun Gorneau , @Sahil , @Acccent , @Diaco , @Victor Work , @Visual-Q , ++++ so many others. Including many single post wonders by people which are never to be heard from again. Many thanks to all !
These people and many others are all Greensock forum heroes, and much more worthy of such high praise for their daily posts. But I'm still glad you liked the post, thanks.