Throughout this chapter, we have focused on building a drawing application from end to end in TypeScript. We started with the basic building blocks for the application, the abstraction, then created a set of reusable shape objects. These objects are then used in a set of classes responsible for drawing them on an HTML5 canvas. Next, we built an engine responsible for handling user interaction and requesting information from the drawing objects to make decisions. Finally, we built a model to keep track of all of the shape objects in the running application. All of this has been done using TypeScript, and only TypeScript. However, a common practice in web development is integrating with third-party libraries such as jQuery. In the next chapter, we are going to look at some of the available third-party libraries and how to integrate them with your projects.