Learn React

React components are JavaScript functions that return markup.

React components need to return a single JSX element and not multiple adjacent JSX elements like two buttons. To fix this you can use Fragments (<> and </>)

By default, all child components re-render automatically when the state of a parent component changes.

Addingexport defaulttells your index.js file to use the Game component as the top-level component instead of your Board component.

It’s strongly recommended that you assign proper keys whenever you build⚠️dynamic lists⚠️.If you don’t have an appropriate key, you may want to consider restructuring your data so that you do.