We're validating the input value now.
Thanks for the feedback; I changed it so that the timerId is now stored on the class, and also mentioned the fetch function more explicitly in the description.
excecuteRender function removed from the tests.
Thanks, added docs to the readme and removed the onClick handlers from the initial solution.
Thank you for the suggestion, but I would not like to specify how to "control the default beast", that's why I don't have a check for it.