The next version of javascript will only work on a minority of browsers, even years after it is adopted (http://arstechnica.com/business/news/2012/04/internet-e

The next version of javascript will only work on a minority of browsers, even years after it is adopted (http://arstechnica.com/business/news/2012/04/internet-explorer-market-share-surges-as-version-9-wins-hearts-and-minds.ars http://arstechnica.com/business/news/2012/04/internet-explor...) while coffeescript works on all browsers now.