D3 is a library that 1. lets one elegantly and concisely bind data to DOM elements 2. use elements’ data to control their appearance. This ends up being suffici

D3 is a library that 1. lets one elegantly and concisely bind data to DOM elements 2. use elements’ data to control their appearance. This ends up being sufficient to be able to draw plots, but is much more general (you wouldn't call a `<ol></ol>` a chart, but D3 can add and remove `<li>`s from it with ease).