Off late I have been exploring and working with Polymer a lot. One thing I tried recently was to create a custom element (a custom tag) that has a d3 chart integrated into it. So whenever I use this element in an application the chart renders.
For those who are not familiar with Polymer, let me tell you, it’s a game changer for the next generation of web applications. The web is getting componentized with the new standards that are coming along – Shadow DOM, custom elements, templating, HTML imports e.t.c. Polymer is a polyfill layer or as they call it a SUGARING layer on top of these web standards that allow you create custom web components easily. You do not need to go the the low level API’s to create a custom element. Just use the Polymer library and start creating your own components. Also it provides a heck of other features that can be used, such as two way data bindings. So go over to the Polymer site and check it out.