How to get last state

[BeanWei]

Is it possible to get last state (last input node type).

I am working on my react rich-text editor, but the menubar re-render when editing. So i need the last editing status to control it. I had ignore some menubar re-render, its needn't isActive function.

Sorry! My english is pool, can anyone help me?

[omarkhairy21]

if you use react use useMemo to prevent unnecessarily rerender