Ian Johnson is the author of Tributary - an open source live-coding environment designed for prototyping data visualizations with D3. He also co-organizes the SF Bay Area d3 Meetup and makes educational D3 videos.
Data Visualization with D3
Ian begins by discussing how to move code from Tributary into a real-world project. Each data visualization element from Tributary will become a reusable component in the application. Ian begins bootstrapping the application and initializing the display object. He uses D3's json() method to access the Reddit service and populate the data object.