WordPress 3.5 will see the addition of two new JavaScript libraries to WordPress core: Backbone.js and Underscore.js. These libraries serve very different functions than old favorites like jQuery, providing application architecture and functional programming support to enable the creation of more robust, flexible and maintainable JavaScript web applications.
This talk will focus on the basics of how to use Underscore to make your theme and plugin scripts more efficient, but we’ll touch on the significance of adding Backbone to core and I will provide some resources for Model-View-Controller (MVC, or “MVWTF”) JavaScript development on top of WordPress.