I am using summernotes component and what I want to do is I want to stop the user from adding characters if s(he) exceeds 2000 Chars but I couldn\'t figure out how to stop typin
Look at this link from their official document.
Basically, what you need to do is:
You can disable editor by API.
$('#summernote').summernote('disable');
If you want to enable editor again, call API with enable.
$('#summernote').summernote('enable');
Now, what you can do is, use these API calls in your own code logic/algorithms to get the desired effect.
I know its an old question, but hope this helps.