This will help you memorize morse code. First you'll always see the answer, but as you get better you'll see the answer less likely.
To run the unit tests run:
npm test
# or
npm run test-single-run
To run the end to end tests:
# start the server
npm start
# start the webdriver
npm run update-webdriver
node_modules/.bin/webdriver-manager start
# Run the tests
npm run protractor