Where should componentDidMount and componentDidUpdate be placed?

Question

React

where should the specified components be placed in the container or directly in the component that does the rendering?

Answer 1

In the component you are rendering.

Answer 2

Forget this ridiculous division of duties. componentDidMount and componentDidUpdate are just lifecycle hooks that need to be applied where there is a need to use them.

Answer 3

As of React v16.8, it is recommended to use React Hooks to create new components.
In your case, you should use useEffect Hook.
You can read more about this on the official React website:
https://reactjs.org/docs/hooks-effect.html