21:43
<ljharb>
bakkot: it seems like it.map(f) and it.flatMap(f), for an f that doesn't return an iterator, aren't the same - iow, it seems like a mapper of x => x will throw in GetIteratorFlattenable if x isn't an Object. was that an intentional decision?
21:47
<bakkot>
yes
21:47
<bakkot>
https://github.com/tc39/proposal-iterator-helpers/pull/59