Do you want to give change to your data model? :D Then, it's time to try 'state' in react!
- Search by first letter, Search by any words
- Create different components (Header, SearchForm, RadioButtons, ResultSection)
- Make a minimal set of State (search Input, include) and country data in App component (And pass the state and data from App components to child components)
- Display the data (with/without conditions) with JSX, when they are rendered
- Import data and functions