React.js + Immutable.js vector editor example

App written during http://dou.ua/calendar/7213/

• Immutable model
• Fast reference-comparison shouldComponentUpdate on everything
• Speculative rendering
• Undo/redo
• localStorage persistence
• vanilla.js

Check out vec.js, it’s decently commented.

Read more about approach (in Russian).

Video (in Russian): code walkthrough, Q&A session

Live version