JavaScript’s simple type system makes the language very approachable, but as applications grow in complexity, that flexibility can mask serious errors. TypeScript is a superset of the JavaScript language you already know, with powerful features like static types, classes, interfaces, and modules added in. Whether you use Node.js on the server side, or you're looking to get ahead of the game for Angular 2, this presentation will teach you how to build more robust, maintainable JavaScript applications that stand the test of time.