Since Google released its JavaScript library Google Closure there have been quite some people wondering about how it compares to Ext JS.Because I'm belonging to this group of people, I thought it can't hurt to try to answer this question myself.Hello WorldThe entry point for getting started with a library is usually a small "Hello World" application.I'm not impressed at all with Google Closure's
![Ext JS vs. Google Closure](https://cdn-ak-scissors.b.st-hatena.com/image/square/3ab6ef7848a31b79e3fb84b3c583a82348882b59/height=288;version=1;width=512/https%3A%2F%2Fblogger.googleusercontent.com%2Fimg%2Fb%2FR29vZ2xl%2FAVvXsEgjJNl7NNxfPWcvXXHWthEZxfSkUKcDgoNXSlOR4QF18PclqRFw4OZ0GXjuII7B8ZRTJGAg_flZYhMvT03fOswgfC4kPcMFIELzNrhQUuuCtCt7fX2M249boK8yT_tL65-YTrU3F-ciEqw%2Fw1200-h630-p-k-no-nu%2Fextjs_closure_tree.png)