This is downloadable demo code related to my tutorial Setup Link Functionality with Functional Programming. Feel free download/clone it and use it as you see fit.
You would have to grab the node modules by running either
yarn install or
npm install. And you can serve the code as a website from the
build folder without a local server setup, but it would probably look cooler if you did. I didn't install a server setup, but you can use whatever method you want to run a server from inside
build. But if you open
build/index.html in a browser without running a local server and clicked its links, you would be able to understand how all this works.