The blog is sooo good! I enjoyed every single paragraph when reading it.
If you're confused about the last part where it mentioned where useMemo and useCallback can help when passing props, I completely understand after reading Kent C Dodds block and Dan Abramov.
To follow up on that, the new beta react docs are largely written by Dan, and they explain the concepts very well, more formally. IMO they're a must-read, even if they're not quite final (some sections missing because they're doing each part carefully one at a time). They're a great refresher and/or confirmation that you're "doing it right", and there's many lessons to be brought into how you approach writing and reviewing components.
If you're confused about the last part where it mentioned where useMemo and useCallback can help when passing props, I completely understand after reading Kent C Dodds block and Dan Abramov.
Further, I learned a lot by taking interactive course from Dan Abramov in https://justjavascript.com
Highly recommended! good read!!
https://kentcdodds.com/blog/usememo-and-usecallback https://overreacted.io/a-complete-guide-to-useeffect/