Explore constraint programming in the browser with this JSConf 2013 talk by Adam Solove. Dive into the Cassowary constraint solver, which powers iOS auto layout, and learn how its JavaScript port brings fast constraint programming to web applications. Gain insights into specifying relationships between variables and maintaining them as users interact. Follow along with a walkthrough of the JavaScript Cassowary library and witness the implementation of impressive constraint-based programs. Discover how to apply this paradigm to create dynamic and responsive user interfaces in your web projects.