Learning CoffeeScript (no, for historical reasons)

The task on Pivotal Tracker (love using it) says “Learn CoffeeScript”. The project this chore forms a part of is really important to me, and while several important projects I am working on still deserve to be based on Drupal, others deserve a new kind of architecture, something wildly new and at the same time something going back to my roots (learning C with Kernighan and Ritchie’s The C Programming Language enthralled with the hiding of detail overload prevalent in the Z80 and 8086 assembler languages I had been using) in the eighties (Turbo C…).