This chapter covered Web Components and polymer.dart. Each topic is so vast that it could easily cover the entire book. Here, we explained the most important parts, so you should now understand how these technologies work in a nutshell.

Web Components are useful even without Polymer and you can use parts of it independently even now with polyfills for older browsers.

Polymer.dart is built on top of Web Components and adds very nifty things to it.

In the next chapter, we'll talk about AngularDart, where you'll find many features already familiar from polymer.dart.