NOTE: the funcy package described first below has been deprecated, in effect having been replaced by the funcy/ranger package (describe farther below).
What is this?
A library providing functional-style operations like Map/Reduce/Filter (to name a few) implemented in Go w/ generics.
But Rob Pike says we should just write for loops instead...
Sorry, I guess I just couldn't resist. I extend apologies to all the Go purists who are annoyed by this.
Are you aware that this approach lacks lazy evaluation, generates a ton of garbage, and won't scale for increasingly large inputs?
Yup. I extend apologies to all the functional purists who are annoyed by this.
How would one install it? (Asking for a friend...)
go get github.com/mdw-go/funcyEnjoy!
Despite what I thought was a very cleverly written disclaimer (above), Go went and released version 1.23 with iterators, which means we can have our cake and eat it too, a phrase which here means that lazy evaluation is now possible and so we no longer need upset functional purists!
I'm not sure how Rob feels about all this, but I sincerely hope you do enjoy the funcy/ranger package, with many accompanying examples.