In the world of modern web development, HTML, CSS and then server-side languages such as Ruby and the Rails framework can only take you so far. Users nowadays expect some more advanced behavior and some other elements such as animations, being able to call data and make changes to the database without having to change from one page to another one. And that is where Javascript comes in. In this section of the course we're going to talk about how we can implement Javascript along with a super language that is included in called Coffee Script then that's going to allow us to write some basic Javascript types of functions and modules that we can call from within our application. We're going to do that in order to create some very cool behavior such as creating a drag and drop interface for being able to change the order of the way our portfolio items look when they're rendered to users.
We're also going to talk at the end of this on jQuery specifically which is an incredibly powerful and very popular Javascript framework.