React Hooks were introduced in version 16.8.0. They are a complete departure from class component lifecycle events. For more information, see the official React Hooks API Reference.
Here is a flow diagram that explains the new flow of a Hooks component.
This flow diagram is also available as a PDF file.
Open in browser
To quickly open the Hook Flow Diagram in your default browser, you can execute the following
from your terminal. Commit this to memory! 😉
$ npx hook-flow