Beautiful

nice :D

Nice

Wow, Nice one.

Гений

Wouldn't this be the best to put in your code if you need to calculate that ?

yes yes yesssss

Arigato, sensei

Could someone explain how this works?

Thanks, that does help :)

Yes it does help, thanks!

1. Those aren't variables but extension properties.
2. For the kata it isn't needed, but it's sort of a cleaner practice IMO; the extension properties only make sense for the high function so no need to make it accessible everywhere.
3. There's nothing to indent really, all those definitions are top-level. (Note that it's not a function high with variables inside it.)

Hope that helps :)