FWIW, I restarted my computer and the issue went away, as I expected. How strange.

Must for/fold return as many values as it takes in?

(can it return 1?)

It must return as many values as starts with on each iteration because those become the new values of those accumulators for the subsequent iteration. Racket 6.12 will have a #:result option to specify the final result of the loop, which could be just one of the accumulators, but existing releases of Racket don’t have that option.

How does one know when 6.12 is coming about?

Racket is released quarterly, so I imagine it will be released sometime in the first 3 months of 2018.

Nuuu I see hehe

But if you want, you can download a snapshot build of the very latest development version of Racket. https://pre.racket-lang.org/installers/

It’s alright, I better stick to mainstream builds

Lest I confuse my learning setup

I generally support that idea. :)

There’s a wiki page with the release schedule, but I think the next release is January

@mflatt Uh oh… restarting my computer fixed the problem for a while, but it seems to have come back.