https://codepen.io/your-work
referred to in the Elliot Davis book
login via twitter
https://codepen.io/your-work
referred to in the Elliot Davis book
login via twitter
https://thecodingpie.com/post/learn-to-code-ping-pong-game-using-javascript-and-html5
has exact code from Elliot Davis book
https://github.com/the-coding-pie/Ping-Pong-Javascript/blob/master/js/script.js
has exact code from Elliot Davis book
https://en.wikipedia.org/wiki/Leo_Sternbach
discoverer of valium