Munim

Another "rails-like" framework for Node.js : locomotive.js (http://locomotivejs.org/)

Just FYI. Coderwall isn't for articles of this format. You might want to look into Medium or something similar

I did something very similar once. I developed a Javascript "API" for a client, who then refused to pay up saying that the project has been canned. I later realized that he is still using my API, so I just put some code which freezes up the browser. The client had to explain to all his clients why their dashboards stopped working and hanging their browsers (it was a B2B business).

A few hours later, I got a very angry call from him. I told him I was just doing some tests in javascript attacks, and I was not expecting him to still use my API after he decided that he doesn't need it. He didn't say a word and hung up the call.