Will React re-render all child components in a chain when the parent changes?

Question

React

There is a simple conditional component:

<ul>
  <li key="1">1</li>
  <li key="2">2</li>
  <li key="3">3</li>
</ul>

If we change the ul , will React re-render all the children in the chain?

Answer 1

If the parent's props change, the children wo n't re-render.
If the state of the parent changes, the children will be re-rendered.