React re-render vs function re-evaluation

Question

Could someone validate if my assumptions after docs and tutorials reading are correct? First of all I would like to introduce some terminology:

reevaluation is when react updates its VirtualDOM and happens when

• component is not memoized and parent component re-evaluates (not necessary props must change)
• component is memoized and its props/state changes
• component's state changes

So rerender is when react updates DOM and happens when:

• re-evaluated virtual DOM node is different than DOM node

Could you confirm am I right?

Answer 1

Re-Evaluating Components != Re-Rendering DOM

• Components get re-evaluated whenever props, state, or context changes

• DOM re-render when there is difference between evaluations