Rob Pike氏による高階関数ライブラリ
imple apply/filter/reduce package.
https://github.com/robpike/filter
I wanted to see how hard it was to implement this sort of thing in Go, with as nice an API as I could manage. It wasn't hard.
Having written it a couple of years ago, I haven't had occasion to use it once. Instead, I just use "for" loops.
You shouldn't use it either.