Finally, Google stopped contributing to Google Closure Library last August. One of ClojureScript’s original value propositions was a rock solid set of readily available JavaScript tools as dependable as clojure.core . If you need robust DOM manipulation, internationalization, date/time handling, color value manipulation, mathematics, programmatic animation, browser history management, accessibility support, graphics, and much more, all without committing to a framework and without bloating your final JavaScript artifact - ClojureScript is a one stop shop.