We’ve published a wide variety of demos and tutorials showing you how to build a realtime chatroom with JavaScript; 10Chat with only 10 lines of JavaScript, AngularJS chat, going “native” with PhoneGap for Android and iOS, etc.

I am showing how to create yet another chat app with Material Design using Polymer to create a simple but visually appealing app with a great user-experience.

Template, Shadow DOM, and Custom Elements enable you to build UI components easier than before. But it's not efficient to load each resources such as HTML, CSS and JavaScript separately.

Deduping dependencies isn't easy either. To load a library like jQuery UI or Bootstrap today requires using separate tags for JavaScript, CSS, and Web Fonts. Things get even more complex if you deal with Web Components with multiple dependencies.

HTML Imports allow you to load those resources as an aggregated HTML file.

Many things happened since Mozilla first announced its solution to bring Web Components capabilities to all modern browsers.

To continue our interview series we invited Daniel Buchner, creator of the X-Tag library, to explain how everything started and what's coming next.

JavaScript is a playground. If you disagree, then I encourage you to read Atwood’s Law. A quick Google search will reveal the law in full force with assemblers, machine emulators, and programming languages all written in JavaScript. That is just a small sampling. Go peruse the npm registry for plenty of build tools, frameworks, and servers written in JavaScript. We are tinkerers, especially in the JavaScript community. Sometimes our creations are practical and sometimes they are just fun.

With that introduction framing this post, I would like to show off some fun I had with Polymer and Marionette.js recently.

Mozilla has a long history of participating in standards development. The post below shows a real-time slice of how standards are debated and adopted. The goal is to update developers who are most affected by implementation decisions we make in Firefox. We are particularly interested in getting feedback from JavaScript library and framework developers.

HTML is the most important factor for the web platform. It provides various low level features to structure sites and apps. But it also is easy to end up with div soup once you start implementing a complex component using native HTML tags. What if the web platform could allow you to create your original component? What if you can give it an arbitrary tag name? What if you can extend features of an existing HTML tag? Custom Elements allow you to do those things.