What is "updating" in React?

Question

As React Documentation says:

componentDidUpdate() is invoked immediately after updating occurs

But I've noticed that componentDidUpdate() is invoked even a browser DOM element isn't updated.

So, what does the React Documentation mean by updating occurs?

Answer 1

"updating" is not DOM updates only but is part of the life cycle.
It occurs when there are new props, state updates and force updates

You can see this part in this diagram taken from the DOCS