Re:Show HN: Tweetsheets – Twitter directly from within Googl...
by codeka on Friday August 10, 2012 @07:35AM
(#4365751)
On the overview page(1) they explicitly call it "a JavaScript cloud scripting language". As far as I know, there's no practical difference between Apps Script and JavaScript (except one runs on the server and one runs in the browser).
(1): https://developers.google.com/apps-script/overview