Dart provides a standard way to do inheritance which means that all libraries and frameworks will be able to inherit from each other. Web Components and polyme

Dart provides a standard way to do inheritance which means that all libraries and frameworks will be able to inherit from each other. Web Components and polymer is a good example of the power and re-use enabled by encapsulation. The http://www.polymer-project.org http://www.polymer-project.org goal is that you can integrate and re-use Dart web components, Angular JS components, Firefox x-tags, etc within the same web app. Which is unprecedented in the fragmented world of JS.