Full Stack project review

Here's a short review of your Full Stack course project. The comments in the review are suggestions that you can use in this project or in your future projects. None of the suggestions are required to get a passing grade.

User experience

What did I do?

Register and log in.

Added different sections of asia to the list. Removed some of them by clicking them on the map.

Clicked around aimlessly.

Experience

Would be great to have a country flash when you click it. I had hard time figuring out which country I added or where the country was that I clicked on the bottom.

Favicon could be changed from the react default. Hard to find your app among the hundred tabs I have open.

Code

Code is well split and everything is found right about where you'd expect them to be.

Read the following https://refactoring.com/catalog/replaceNestedConditionalWithGuardClauses.html

And refactor

This component seems to have multiple components hiding inside of it, consider splitting it into multiple files.
https://github.com/palcsta/FullStackProject/blob/0774edcb3a1ebe65a2f9d0ff3f1e5ee5b62768b8/continents/src/components/SelectedFlags.js

You can use the guard clause to block rendering instead of having logic inside the return statement with:

if (reasonYouDontWantToRender) retun null

And speaking of that SelectedFlags.js file, what's going on with the spacing.

Conclusion

Cool project that could be used for multiple purposes. Adding eslint and prettier to your project would probably help with the readability of your code.

Good job!