What are the features of Polymer.js?

Polymer JS is currently the simplest way to create custom HTML elements for API development because this library is built on top of web standards API. It also has computed properties and creation of hybrid mobile applications is super easy too. Moreover, it provides gesture events, provides the polyfills by this we can create our own customized elements and distributes custom elements across network that can be used by users. Plus, it has both one way and two-way data binding. It also provides command line interface, which helps to manage the project from simple to complicated application as well as cross-browser compatible application.