title: How does Codeacademy work?
body: <p>What to your opinion bases the mechanism behind Codeacademy? How do you use code in order to check if a few lines of code are serving a certain purpose, in a certain wanted way?</p>
  
  <p>I'm not looking for a concrete way of implementing such a thing, I was just wondering what languages/technologies are possibly involved with a mechanism like that.</p>