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Server-side Javascript frameworks seem to be in the midst of a Cambrian explosion right now.

I just pushed my own today:

There is an explosion indeed, with two main directions IMHO: - frameworks like yours on top of Node - frameworks like helma-ng and nitro on top of Google App Engine (via Rhino)

These offer the best scalability guarantees and I'm still torn on what is the best approach for my personal projects.

node.js supports an event driven programming paradigm by default, so in that regard it is a bit different than some of the other server side JS frameworks.

Just checked it out. The ability to chain calls is pretty awesome. I also liked how the route callbacks are called on env, so you can say this.env_var to get at your params and such. Very cool.

The latter was just from my framework of choice until now, Tornado.

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