Notes on Tonsky's datascript-todo Code Walkthrough
The ClojureScript NYC DataScript Webinar (2014-12) video is long (nearly 2.5 hours) but quite an informative session of Tonsky assembling / going through his datascript-todo sample.
Regarding the Specific Code in the Video
In the video, he starts with a mostly "static" version of his sample code. Over the course of the session he gradually transforms the sample into a