It will be great if we can use a single language on both server and client. Similar to JVM, if we have a builtin browser VM which compiles to byte code, and can use different languages it will be good. e.g. Use a python library written for browser VM in Java. Why should we invent new languages like DART, CofeeScript which in the end compiles to Javascript. Is Javascript the new byte code?
Previous discussion around this idea: <a href="http://news.ycombinator.com/item?id=1893686" rel="nofollow">http://news.ycombinator.com/item?id=1893686</a>