Most Javascript is written to glue code and UI together without any thought to design patterns.  Over time this leads to piles of Javascript that look nothing like code you’d be proud of writing.  In this talk we’ll look at the rise of software libraries (like Knockout) that can help add structure to your JS.  We’ll talk about when they help your project, and when they get in the way.  We’ll also look into how you can easily use the Mediator pattern in JavaScript to really clean up your code with or without other libraries.