FizzBuzz in TypesScript using only closures (not even variables or braces)

Okay. What the heck.

Source code: https://gist.github.com/andrewjpritchard/5c2d26e72dbf8669dc7a4fccb3bfe660

I fear no man.

But that thing?

https://i.imgur.com/AZ6iRme.png

It scares me.

So this is what you do after finishing SICP?