@ngn ah good catch. when does it return in the wrong order? updated

or slight tweak

@chrispsn that works! thanks

i'll replace the old k-string with this

I guess a candidate for the k tech tree would be {(0#x){$[0|/x~\:y;x;x,,y]}/x}

@coltim basically I wanted an option that isn't dependent on find

@coltim i like how straightforward your one is, and it doesn't rely on sorting or find. added

@chrispsn new goal: reimplement primitives with the equivalent of for loops =P

there could be the seed of a "here's something that works in the language, but is not idiomatic" thing. would be easier if the over/scan overloads weren't one of the more nuanced parts of the language…