Hide foldcolumn when no folds?

Question

Currently I have set foldcolumn=1, but in a buffer with no folds, it's just a waste of space.

Is there a convenient event to listen to in order to automatically toggle it between 0 and 1 (or whatever preference for 'on')?

Answer 1

There is no such event.

I opened an issue on vim’s github about getting an auto value acceptable for the 'foldcolumn' option, but I don’t recall it gaining any traction.

I developed Auto Origami for just this purpose.