Demo found here: https://nomicflux.github.io/okasaki-visualization/
The goal of this project is to provide interactive visualizations for the data strutures in Okasaki's Purely Functional Data Structures, plus other interesting functional structures that may come up.
Currently, the focus is to get a few simple examples running, namely for Stacks (i.e. Linked Lists) and Queues. Once they can be visualized, the next step is to bring up code snippets for each function, ideally in multiple functional languages. Then I'll abstract out the framework and work through Okasaki in force.
Update: Code snippets are in place for Stacks in multiple languages, and for Queues in Purescript. They are better for some languages than others - since the site is written in Purescript, it is of course the main exemplar, with Elm and Haskell close behind. Scala is proving difficult to incorporate, since the structure of the code is more object-oriented and so less given to nice snippets. Dynamic languages such as Clojure and Elixir fall in the middle.